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[taler-wallet-core] branch master updated: remove excessive namespacing,


From: gnunet
Subject: [taler-wallet-core] branch master updated: remove excessive namespacing, format
Date: Wed, 12 Aug 2020 09:11:06 +0200

This is an automated email from the git hooks/post-receive script.

dold pushed a commit to branch master
in repository wallet-core.

The following commit(s) were added to refs/heads/master by this push:
     new f180d058 remove excessive namespacing, format
f180d058 is described below

commit f180d0580457e1e9bd502293df327dfe138dd422
Author: Florian Dold <florian.dold@gmail.com>
AuthorDate: Wed Aug 12 12:41:00 2020 +0530

    remove excessive namespacing, format
---
 packages/idb-bridge/.prettierrc                    |  6 --
 packages/idb-bridge/package.json                   |  3 +-
 packages/idb-bridge/src/BridgeIDBTransaction.ts    |  6 +-
 packages/idb-bridge/src/idbtypes.ts                |  2 +-
 packages/idb-bridge/src/index.ts                   |  9 +-
 packages/idb-bridge/src/util/FakeEvent.ts          |  6 +-
 packages/idb-bridge/src/util/FakeEventTarget.ts    |  7 +-
 packages/taler-integrationtests/package.json       |  4 +-
 .../taler-integrationtests/src/faultInjection.ts   |  2 +-
 packages/taler-integrationtests/src/harness.ts     | 52 ++++++------
 packages/taler-integrationtests/src/helpers.ts     | 21 +++--
 .../taler-integrationtests/src/merchantApiTypes.ts | 98 +++++++++++-----------
 .../src/scenario-prompt-payment.ts                 |  2 +-
 .../src/test-payment-fault.ts                      | 15 +++-
 .../src/test-payment-multiple.ts                   | 19 +++--
 .../taler-integrationtests/src/test-payment.ts     |  2 +-
 .../src/test-refund-incremental.ts                 |  2 +-
 packages/taler-integrationtests/src/test-refund.ts |  2 +-
 .../src/test-withdrawal-bank-integrated.ts         |  7 +-
 .../src/test-withdrawal-manual.ts                  | 14 ++--
 packages/taler-wallet-android/package.json         |  3 +-
 packages/taler-wallet-android/src/index.ts         | 76 ++++++++---------
 packages/taler-wallet-cli/package.json             |  3 +-
 packages/taler-wallet-cli/src/index.ts             | 52 ++++++------
 packages/taler-wallet-core/package.json            |  2 +-
 .../src/crypto/workers/cryptoApi.ts                |  1 -
 .../src/crypto/workers/nodeThreadWorker.ts         |  2 +-
 packages/taler-wallet-core/src/index.ts            | 39 ++++-----
 .../taler-wallet-core/src/operations/refund.ts     |  3 +-
 .../taler-wallet-core/src/types/walletTypes.ts     |  9 +-
 .../taler-wallet-core/src/util/talerconfig-test.ts |  2 +-
 packages/taler-wallet-core/src/util/talerconfig.ts | 10 ++-
 packages/taler-wallet-core/src/util/timer.ts       |  6 +-
 .../src/browserHttpLib.ts                          | 47 ++++++++---
 packages/taler-wallet-webextension/src/i18n.tsx    |  2 +-
 .../taler-wallet-webextension/src/pages/pay.tsx    | 12 +--
 .../taler-wallet-webextension/src/pages/popup.tsx  | 25 +++---
 .../taler-wallet-webextension/src/pages/refund.tsx |  5 +-
 .../taler-wallet-webextension/src/pages/tip.tsx    |  7 +-
 .../src/pages/welcome.tsx                          |  4 +-
 .../taler-wallet-webextension/src/renderHtml.tsx   | 14 ++--
 packages/taler-wallet-webextension/src/wxApi.ts    | 18 ++--
 .../taler-wallet-webextension/src/wxBackend.ts     | 26 +++---
 pnpm-lock.yaml                                     |  8 ++
 44 files changed, 359 insertions(+), 296 deletions(-)

diff --git a/packages/idb-bridge/.prettierrc b/packages/idb-bridge/.prettierrc
deleted file mode 100644
index 50063da9..00000000
--- a/packages/idb-bridge/.prettierrc
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "trailingComma": "all",
-  "tabWidth": 2,
-  "semi": true,
-  "singleQuote": false
-}
\ No newline at end of file
diff --git a/packages/idb-bridge/package.json b/packages/idb-bridge/package.json
index cf9ce409..37959942 100644
--- a/packages/idb-bridge/package.json
+++ b/packages/idb-bridge/package.json
@@ -12,13 +12,14 @@
     "test": "tsc && ava",
     "compile": "tsc && rollup -c && api-extractor run",
     "clean": "rimraf dist lib tsconfig.tsbuildinfo",
-    "pretty": "prettier --config ../../.prettierrc --write src"
+    "pretty": "prettier --write src"
   },
   "devDependencies": {
     "@microsoft/api-extractor": "^7.9.3",
     "@rollup/plugin-typescript": "^5.0.2",
     "ava": "^3.10.1",
     "esm": "^3.2.25",
+    "prettier": "^2.0.5",
     "rimraf": "^3.0.2",
     "rollup": "^2.23.0",
     "typescript": "^3.7.0"
diff --git a/packages/idb-bridge/src/BridgeIDBTransaction.ts 
b/packages/idb-bridge/src/BridgeIDBTransaction.ts
index d49ae515..b064d069 100644
--- a/packages/idb-bridge/src/BridgeIDBTransaction.ts
+++ b/packages/idb-bridge/src/BridgeIDBTransaction.ts
@@ -10,11 +10,7 @@ import {
 import fakeDOMStringList from "./util/fakeDOMStringList";
 import FakeEvent from "./util/FakeEvent";
 import FakeEventTarget from "./util/FakeEventTarget";
-import {
-  FakeDOMStringList,
-  RequestObj,
-  TransactionMode,
-} from "./util/types";
+import { FakeDOMStringList, RequestObj, TransactionMode } from "./util/types";
 import queueTask from "./util/queueTask";
 import openPromise from "./util/openPromise";
 import { DatabaseTransaction, Backend } from "./backend-interface";
diff --git a/packages/idb-bridge/src/idbtypes.ts 
b/packages/idb-bridge/src/idbtypes.ts
index 4ab2b6f3..7bd0eaaa 100644
--- a/packages/idb-bridge/src/idbtypes.ts
+++ b/packages/idb-bridge/src/idbtypes.ts
@@ -866,7 +866,7 @@ export interface IDBTransaction extends EventTarget {
  * This IndexedDB API interface indicates that the version of the database has
  * changed, as the result of an IDBOpenDBRequest.onupgradeneeded event handler
  * function.
- * 
+ *
  * @public
  */
 export interface IDBVersionChangeEvent extends Event {
diff --git a/packages/idb-bridge/src/index.ts b/packages/idb-bridge/src/index.ts
index a0780376..4c29be96 100644
--- a/packages/idb-bridge/src/index.ts
+++ b/packages/idb-bridge/src/index.ts
@@ -36,7 +36,14 @@ import {
   IndexProperties,
 } from "./backend-interface";
 import FakeEventTarget, { Listener } from "./util/FakeEventTarget";
-import { DatabaseDump, ObjectStoreDump, IndexDump, IndexRecord, 
ObjectStoreRecord, MemoryBackendDump } from "./MemoryBackend";
+import {
+  DatabaseDump,
+  ObjectStoreDump,
+  IndexDump,
+  IndexRecord,
+  ObjectStoreRecord,
+  MemoryBackendDump,
+} from "./MemoryBackend";
 import { Event } from "./idbtypes";
 
 export {
diff --git a/packages/idb-bridge/src/util/FakeEvent.ts 
b/packages/idb-bridge/src/util/FakeEvent.ts
index 20760788..1c558d8a 100644
--- a/packages/idb-bridge/src/util/FakeEvent.ts
+++ b/packages/idb-bridge/src/util/FakeEvent.ts
@@ -67,7 +67,11 @@ export class FakeEvent implements Event {
   composedPath(): EventTarget[] {
     throw new Error("Method not implemented.");
   }
-  initEvent(type: string, bubbles?: boolean | undefined, cancelable?: boolean 
| undefined): void {
+  initEvent(
+    type: string,
+    bubbles?: boolean | undefined,
+    cancelable?: boolean | undefined,
+  ): void {
     throw new Error("Method not implemented.");
   }
 
diff --git a/packages/idb-bridge/src/util/FakeEventTarget.ts 
b/packages/idb-bridge/src/util/FakeEventTarget.ts
index da5a5466..77df768f 100644
--- a/packages/idb-bridge/src/util/FakeEventTarget.ts
+++ b/packages/idb-bridge/src/util/FakeEventTarget.ts
@@ -17,7 +17,12 @@
 import { InvalidStateError } from "./errors";
 import FakeEvent from "./FakeEvent";
 import { EventType } from "./types";
-import { EventTarget, Event, EventListenerOrEventListenerObject, EventListener 
} from "../idbtypes";
+import {
+  EventTarget,
+  Event,
+  EventListenerOrEventListenerObject,
+  EventListener,
+} from "../idbtypes";
 
 type EventTypeProp =
   | "onabort"
diff --git a/packages/taler-integrationtests/package.json 
b/packages/taler-integrationtests/package.json
index ba2f112e..21573894 100644
--- a/packages/taler-integrationtests/package.json
+++ b/packages/taler-integrationtests/package.json
@@ -4,12 +4,14 @@
   "description": "Integration tests and fault injection for GNU Taler 
components",
   "main": "index.js",
   "scripts": {
-    "compile": "tsc -b"
+    "compile": "tsc -b",
+    "pretty": "prettier --write src"
   },
   "author": "Florian Dold <dold@taler.net>",
   "license": "AGPL-3.0-or-later",
   "devDependencies": {
     "esm": "^3.2.25",
+    "prettier": "^2.0.5",
     "source-map-support": "^0.5.19",
     "ts-node": "^8.10.2",
     "typescript": "^3.9.7"
diff --git a/packages/taler-integrationtests/src/faultInjection.ts 
b/packages/taler-integrationtests/src/faultInjection.ts
index a9c249fd..26bfeee5 100644
--- a/packages/taler-integrationtests/src/faultInjection.ts
+++ b/packages/taler-integrationtests/src/faultInjection.ts
@@ -144,7 +144,7 @@ export class FaultProxy {
               statusCode: proxyResp.statusCode!!,
             };
             for (const faultSpec of this.currentFaultSpecs) {
-              const modResponse = faultSpec.modifyResponse;  
+              const modResponse = faultSpec.modifyResponse;
               if (modResponse) {
                 modResponse(faultRespContext);
               }
diff --git a/packages/taler-integrationtests/src/harness.ts 
b/packages/taler-integrationtests/src/harness.ts
index 2507d12f..80cd1d90 100644
--- a/packages/taler-integrationtests/src/harness.ts
+++ b/packages/taler-integrationtests/src/harness.ts
@@ -32,21 +32,29 @@ import * as http from "http";
 import { ChildProcess, spawn } from "child_process";
 import {
   Configuration,
-  walletCoreApi,
-  codec,
   AmountJson,
   Amounts,
+  Codec,
+  makeCodecForObject,
+  codecForString,
+  Duration,
+  CoreApiResponse,
 } from "taler-wallet-core";
 import { URL } from "url";
 import axios from "axios";
-import { talerCrypto, time } from "taler-wallet-core";
 import {
   codecForMerchantOrderPrivateStatusResponse,
   codecForPostOrderResponse,
   PostOrderRequest,
   PostOrderResponse,
 } from "./merchantApiTypes";
-import { EddsaKeyPair } from "taler-wallet-core/lib/crypto/talerCrypto";
+import {
+  EddsaKeyPair,
+  getRandomBytes,
+  encodeCrock,
+  eddsaGetPublic,
+  createEddsaKeyPair,
+} from "taler-wallet-core/lib/crypto/talerCrypto";
 
 const exec = util.promisify(require("child_process").exec);
 
@@ -540,11 +548,10 @@ export class BankService {
   }
 
   async createRandomBankUser(): Promise<BankUser> {
-    const username =
-      "user-" + talerCrypto.encodeCrock(talerCrypto.getRandomBytes(10));
+    const username = "user-" + encodeCrock(getRandomBytes(10));
     const bankUser: BankUser = {
       username,
-      password: "pw-" + 
talerCrypto.encodeCrock(talerCrypto.getRandomBytes(10)),
+      password: "pw-" + encodeCrock(getRandomBytes(10)),
       accountPaytoUri: `payto://x-taler-bank/localhost/${username}`,
     };
     await this.createAccount(bankUser.username, bankUser.password);
@@ -617,13 +624,10 @@ export interface WithdrawalOperationInfo {
   taler_withdraw_uri: string;
 }
 
-const codecForWithdrawalOperationInfo = (): codec.Codec<
-  WithdrawalOperationInfo
-> =>
-  codec
-    .makeCodecForObject<WithdrawalOperationInfo>()
-    .property("withdrawal_id", codec.codecForString)
-    .property("taler_withdraw_uri", codec.codecForString)
+const codecForWithdrawalOperationInfo = (): Codec<WithdrawalOperationInfo> =>
+  makeCodecForObject<WithdrawalOperationInfo>()
+    .property("withdrawal_id", codecForString)
+    .property("taler_withdraw_uri", codecForString)
     .build("WithdrawalOperationInfo");
 
 export const defaultCoinConfig = [
@@ -666,7 +670,7 @@ export class ExchangeService implements 
ExchangeServiceInterface {
     const eddsaPriv = fs.readFileSync(privFile);
     const keyPair: EddsaKeyPair = {
       eddsaPriv,
-      eddsaPub: talerCrypto.eddsaGetPublic(eddsaPriv),
+      eddsaPub: eddsaGetPublic(eddsaPriv),
     };
     return new ExchangeService(gc, ec, cfgFilename, keyPair);
   }
@@ -728,12 +732,12 @@ export class ExchangeService implements 
ExchangeServiceInterface {
 
     config.setString("exchangedb-postgres", "config", e.database);
 
-    const exchangeMasterKey = talerCrypto.createEddsaKeyPair();
+    const exchangeMasterKey = createEddsaKeyPair();
 
     config.setString(
       "exchange",
       "master_public_key",
-      talerCrypto.encodeCrock(exchangeMasterKey.eddsaPub),
+      encodeCrock(exchangeMasterKey.eddsaPub),
     );
 
     const masterPrivFile = config
@@ -758,7 +762,7 @@ export class ExchangeService implements 
ExchangeServiceInterface {
   }
 
   get masterPub() {
-    return talerCrypto.encodeCrock(this.keyPair.eddsaPub);
+    return encodeCrock(this.keyPair.eddsaPub);
   }
 
   get port() {
@@ -812,7 +816,7 @@ export class ExchangeService implements 
ExchangeServiceInterface {
     private globalState: GlobalTestState,
     private exchangeConfig: ExchangeConfig,
     private configFilename: string,
-    private keyPair: talerCrypto.EddsaKeyPair,
+    private keyPair: EddsaKeyPair,
   ) {}
 
   get name() {
@@ -983,7 +987,7 @@ export class MerchantService {
     });
     return {
       talerRefundUri: resp.data.taler_refund_uri,
-    }
+    };
   }
 
   async createOrder(
@@ -1015,8 +1019,8 @@ export interface MerchantInstanceConfig {
   defaultMaxWireFee?: string;
   defaultMaxDepositFee?: string;
   defaultWireFeeAmortization?: number;
-  defaultWireTransferDelay?: time.Duration;
-  defaultPayDelay?: time.Duration;
+  defaultWireTransferDelay?: Duration;
+  defaultPayDelay?: Duration;
 }
 
 /**
@@ -1106,7 +1110,7 @@ export class WalletCli {
   async apiRequest(
     request: string,
     payload: Record<string, unknown>,
-  ): Promise<walletCoreApi.CoreApiResponse> {
+  ): Promise<CoreApiResponse> {
     const wdb = this.globalTestState.testDir + "/walletdb.json";
     const resp = await sh(
       this.globalTestState,
@@ -1116,7 +1120,7 @@ export class WalletCli {
       )}`,
     );
     console.log(resp);
-    return JSON.parse(resp) as walletCoreApi.CoreApiResponse;
+    return JSON.parse(resp) as CoreApiResponse;
   }
 
   async runUntilDone(): Promise<void> {
diff --git a/packages/taler-integrationtests/src/helpers.ts 
b/packages/taler-integrationtests/src/helpers.ts
index 41cd39d7..b37b6b96 100644
--- a/packages/taler-integrationtests/src/helpers.ts
+++ b/packages/taler-integrationtests/src/helpers.ts
@@ -75,7 +75,10 @@ export async function createSimpleTestkudosEnvironment(
     database: db.connStr,
   });
 
-  const exchangeBankAccount = await bank.createExchangeAccount("MyExchange", 
"x");
+  const exchangeBankAccount = await bank.createExchangeAccount(
+    "MyExchange",
+    "x",
+  );
   exchange.addBankAccount("1", exchangeBankAccount);
 
   bank.setSuggestedExchange(exchange, exchangeBankAccount.accountPaytoUri);
@@ -123,13 +126,15 @@ export async function createSimpleTestkudosEnvironment(
 /**
  * Withdraw balance.
  */
-export async function withdrawViaBank(t: GlobalTestState, p: {
-  wallet: WalletCli;
-  bank: BankService;
-  exchange: ExchangeService;
-  amount: AmountString;
-}): Promise<void> {
-
+export async function withdrawViaBank(
+  t: GlobalTestState,
+  p: {
+    wallet: WalletCli;
+    bank: BankService;
+    exchange: ExchangeService;
+    amount: AmountString;
+  },
+): Promise<void> {
   const { wallet, bank, exchange, amount } = p;
 
   const user = await bank.createRandomBankUser();
diff --git a/packages/taler-integrationtests/src/merchantApiTypes.ts 
b/packages/taler-integrationtests/src/merchantApiTypes.ts
index fe70c356..3c096581 100644
--- a/packages/taler-integrationtests/src/merchantApiTypes.ts
+++ b/packages/taler-integrationtests/src/merchantApiTypes.ts
@@ -22,23 +22,34 @@
  */
 
 /**
- * Imports
+ * Imports.
  */
 import {
-  codec,
-  talerTypes,
-  time,
+  ContractTerms,
+  Duration,
+  Codec,
+  makeCodecForObject,
+  codecForString,
+  makeCodecOptional,
+  makeCodecForConstString,
+  codecForBoolean,
+  codecForNumber,
+  codecForContractTerms,
+  codecForAny,
+  makeCodecForUnion,
+  AmountString,
+  Timestamp,
+  CoinPublicKeyString,
 } from "taler-wallet-core";
 
-
 export interface PostOrderRequest {
   // The order must at least contain the minimal
   // order detail, but can override all
-  order: Partial<talerTypes.ContractTerms>;
+  order: Partial<ContractTerms>;
 
   // if set, the backend will then set the refund deadline to the current
   // time plus the specified delay.
-  refund_delay?: time.Duration;
+  refund_delay?: Duration;
 
   // specifies the payment target preferred by the client. Can be used
   // to select among the various (active) wire methods supported by the 
instance.
@@ -60,51 +71,44 @@ export interface PostOrderResponse {
   token?: ClaimToken;
 }
 
-export const codecForPostOrderResponse = (): codec.Codec<PostOrderResponse> =>
-  codec
-    .makeCodecForObject<PostOrderResponse>()
-    .property("order_id", codec.codecForString)
-    .property("token", codec.makeCodecOptional(codec.codecForString))
+export const codecForPostOrderResponse = (): Codec<PostOrderResponse> =>
+  makeCodecForObject<PostOrderResponse>()
+    .property("order_id", codecForString)
+    .property("token", makeCodecOptional(codecForString))
     .build("PostOrderResponse");
 
-export const codecForCheckPaymentPaidResponse = (): codec.Codec<
+export const codecForCheckPaymentPaidResponse = (): Codec<
   CheckPaymentPaidResponse
 > =>
-  codec
-    .makeCodecForObject<CheckPaymentPaidResponse>()
-    .property("order_status", codec.makeCodecForConstString("paid"))
-    .property("refunded", codec.codecForBoolean)
-    .property("wired", codec.codecForBoolean)
-    .property("deposit_total", codec.codecForString)
-    .property("exchange_ec", codec.codecForNumber)
-    .property("exchange_hc", codec.codecForNumber)
-    .property("refund_amount", codec.codecForString)
-    .property("contract_terms", talerTypes.codecForContractTerms())
+  makeCodecForObject<CheckPaymentPaidResponse>()
+    .property("order_status", makeCodecForConstString("paid"))
+    .property("refunded", codecForBoolean)
+    .property("wired", codecForBoolean)
+    .property("deposit_total", codecForString)
+    .property("exchange_ec", codecForNumber)
+    .property("exchange_hc", codecForNumber)
+    .property("refund_amount", codecForString)
+    .property("contract_terms", codecForContractTerms())
     // FIXME: specify
-    .property("wire_details", codec.codecForAny)
-    .property("wire_reports", codec.codecForAny)
-    .property("refund_details", codec.codecForAny)
+    .property("wire_details", codecForAny)
+    .property("wire_reports", codecForAny)
+    .property("refund_details", codecForAny)
     .build("CheckPaymentPaidResponse");
 
-export const codecForCheckPaymentUnpaidResponse = (): codec.Codec<
+export const codecForCheckPaymentUnpaidResponse = (): Codec<
   CheckPaymentUnpaidResponse
 > =>
-  codec
-    .makeCodecForObject<CheckPaymentUnpaidResponse>()
-    .property("order_status", codec.makeCodecForConstString("unpaid"))
-    .property("taler_pay_uri", codec.codecForString)
-    .property("order_status_url", codec.codecForString)
-    .property(
-      "already_paid_order_id",
-      codec.makeCodecOptional(codec.codecForString),
-    )
+  makeCodecForObject<CheckPaymentUnpaidResponse>()
+    .property("order_status", makeCodecForConstString("unpaid"))
+    .property("taler_pay_uri", codecForString)
+    .property("order_status_url", codecForString)
+    .property("already_paid_order_id", makeCodecOptional(codecForString))
     .build("CheckPaymentPaidResponse");
 
-export const codecForMerchantOrderPrivateStatusResponse = (): codec.Codec<
+export const codecForMerchantOrderPrivateStatusResponse = (): Codec<
   MerchantOrderPrivateStatusResponse
 > =>
-  codec
-    .makeCodecForUnion<MerchantOrderPrivateStatusResponse>()
+  makeCodecForUnion<MerchantOrderPrivateStatusResponse>()
     .discriminateOn("order_status")
     .alternative("paid", codecForCheckPaymentPaidResponse())
     .alternative("unpaid", codecForCheckPaymentUnpaidResponse())
@@ -126,7 +130,7 @@ export interface CheckPaymentPaidResponse {
 
   // Total amount the exchange deposited into our bank account
   // for this contract, excluding fees.
-  deposit_total: talerTypes.AmountString;
+  deposit_total: AmountString;
 
   // Numeric error code indicating errors the exchange
   // encountered tracking the wire transfer for this purchase (before
@@ -140,10 +144,10 @@ export interface CheckPaymentPaidResponse {
   exchange_hc: number;
 
   // Total amount that was refunded, 0 if refunded is false.
-  refund_amount: talerTypes.AmountString;
+  refund_amount: AmountString;
 
   // Contract terms
-  contract_terms: talerTypes.ContractTerms;
+  contract_terms: ContractTerms;
 
   // Ihe wire transfer status from the exchange for this order if available, 
otherwise empty array
   wire_details: TransactionWireTransfer[];
@@ -177,10 +181,10 @@ export interface RefundDetails {
   reason: string;
 
   // when was the refund approved
-  timestamp: time.Timestamp;
+  timestamp: Timestamp;
 
   // Total amount that was refunded (minus a refund fee).
-  amount: talerTypes.AmountString;
+  amount: AmountString;
 }
 
 export interface TransactionWireTransfer {
@@ -191,11 +195,11 @@ export interface TransactionWireTransfer {
   wtid: string;
 
   // execution time of the wire transfer
-  execution_time: time.Timestamp;
+  execution_time: Timestamp;
 
   // Total amount that has been wire transfered
   // to the merchant
-  amount: talerTypes.AmountString;
+  amount: AmountString;
 
   // Was this transfer confirmed by the merchant via the
   // POST /transfers API, or is it merely claimed by the exchange?
@@ -216,5 +220,5 @@ export interface TransactionWireReport {
   exchange_hc: number;
 
   // Public key of the coin for which we got the exchange error.
-  coin_pub: talerTypes.CoinPublicKeyString;
+  coin_pub: CoinPublicKeyString;
 }
diff --git a/packages/taler-integrationtests/src/scenario-prompt-payment.ts 
b/packages/taler-integrationtests/src/scenario-prompt-payment.ts
index 615ed577..f60c6704 100644
--- a/packages/taler-integrationtests/src/scenario-prompt-payment.ts
+++ b/packages/taler-integrationtests/src/scenario-prompt-payment.ts
@@ -52,7 +52,7 @@ runTest(async (t: GlobalTestState) => {
     orderResp.order_id,
   );
 
-  t.assertTrue(orderStatus.order_status === "unpaid")
+  t.assertTrue(orderStatus.order_status === "unpaid");
 
   console.log(orderStatus);
 
diff --git a/packages/taler-integrationtests/src/test-payment-fault.ts 
b/packages/taler-integrationtests/src/test-payment-fault.ts
index 0db6770b..2ee5c705 100644
--- a/packages/taler-integrationtests/src/test-payment-fault.ts
+++ b/packages/taler-integrationtests/src/test-payment-fault.ts
@@ -31,7 +31,11 @@ import {
   WalletCli,
   defaultCoinConfig,
 } from "./harness";
-import { FaultInjectedExchangeService, FaultInjectionRequestContext, 
FaultInjectionResponseContext } from "./faultInjection";
+import {
+  FaultInjectedExchangeService,
+  FaultInjectionRequestContext,
+  FaultInjectionResponseContext,
+} from "./faultInjection";
 import { CoreApiResponse } from "taler-wallet-core/lib/walletCoreApiHandler";
 
 /**
@@ -56,7 +60,10 @@ runTest(async (t: GlobalTestState) => {
     database: db.connStr,
   });
 
-  const exchangeBankAccount = await bank.createExchangeAccount("MyExchange", 
"x");
+  const exchangeBankAccount = await bank.createExchangeAccount(
+    "MyExchange",
+    "x",
+  );
 
   bank.setSuggestedExchange(exchange, exchangeBankAccount.accountPaytoUri);
 
@@ -79,7 +86,7 @@ runTest(async (t: GlobalTestState) => {
     },
     modifyResponse(ctx: FaultInjectionResponseContext) {
       console.log("got response", ctx);
-    }
+    },
   });
 
   const merchant = await MerchantService.create(t, {
@@ -174,7 +181,7 @@ runTest(async (t: GlobalTestState) => {
         faultCount++;
         ctx.dropResponse = true;
       }
-    }
+    },
   });
 
   // confirmPay won't work, as the exchange is unreachable
diff --git a/packages/taler-integrationtests/src/test-payment-multiple.ts 
b/packages/taler-integrationtests/src/test-payment-multiple.ts
index 5bbeecbd..80092a9a 100644
--- a/packages/taler-integrationtests/src/test-payment-multiple.ts
+++ b/packages/taler-integrationtests/src/test-payment-multiple.ts
@@ -30,10 +30,12 @@ import {
 } from "./harness";
 import { withdrawViaBank } from "./helpers";
 
-async function setupTest(t: GlobalTestState): Promise<{
-  merchant: MerchantService,
-  exchange: ExchangeService,
-  bank: BankService,
+async function setupTest(
+  t: GlobalTestState,
+): Promise<{
+  merchant: MerchantService;
+  exchange: ExchangeService;
+  bank: BankService;
 }> {
   const db = await setupDb(t);
 
@@ -51,7 +53,10 @@ async function setupTest(t: GlobalTestState): Promise<{
     database: db.connStr,
   });
 
-  const exchangeBankAccount = await bank.createExchangeAccount("MyExchange", 
"x");
+  const exchangeBankAccount = await bank.createExchangeAccount(
+    "MyExchange",
+    "x",
+  );
 
   exchange.addOfferedCoins([coin_ct10, coin_u1]);
 
@@ -96,12 +101,12 @@ async function setupTest(t: GlobalTestState): Promise<{
     merchant,
     bank,
     exchange,
-  }
+  };
 }
 
 /**
  * Run test.
- * 
+ *
  * This test uses a very sub-optimal denomination structure.
  */
 runTest(async (t: GlobalTestState) => {
diff --git a/packages/taler-integrationtests/src/test-payment.ts 
b/packages/taler-integrationtests/src/test-payment.ts
index cfe65a6f..3fd87958 100644
--- a/packages/taler-integrationtests/src/test-payment.ts
+++ b/packages/taler-integrationtests/src/test-payment.ts
@@ -52,7 +52,7 @@ runTest(async (t: GlobalTestState) => {
     orderResp.order_id,
   );
 
-  t.assertTrue(orderStatus.order_status === "unpaid")
+  t.assertTrue(orderStatus.order_status === "unpaid");
 
   // Make wallet pay for the order
 
diff --git a/packages/taler-integrationtests/src/test-refund-incremental.ts 
b/packages/taler-integrationtests/src/test-refund-incremental.ts
index 29685dd3..0667b10d 100644
--- a/packages/taler-integrationtests/src/test-refund-incremental.ts
+++ b/packages/taler-integrationtests/src/test-refund-incremental.ts
@@ -52,7 +52,7 @@ runTest(async (t: GlobalTestState) => {
     orderResp.order_id,
   );
 
-  t.assertTrue(orderStatus.order_status === "unpaid")
+  t.assertTrue(orderStatus.order_status === "unpaid");
 
   // Make wallet pay for the order
 
diff --git a/packages/taler-integrationtests/src/test-refund.ts 
b/packages/taler-integrationtests/src/test-refund.ts
index c2f152f5..e1fdbfc5 100644
--- a/packages/taler-integrationtests/src/test-refund.ts
+++ b/packages/taler-integrationtests/src/test-refund.ts
@@ -52,7 +52,7 @@ runTest(async (t: GlobalTestState) => {
     orderResp.order_id,
   );
 
-  t.assertTrue(orderStatus.order_status === "unpaid")
+  t.assertTrue(orderStatus.order_status === "unpaid");
 
   // Make wallet pay for the order
 
diff --git 
a/packages/taler-integrationtests/src/test-withdrawal-bank-integrated.ts 
b/packages/taler-integrationtests/src/test-withdrawal-bank-integrated.ts
index a856560d..46ccdaae 100644
--- a/packages/taler-integrationtests/src/test-withdrawal-bank-integrated.ts
+++ b/packages/taler-integrationtests/src/test-withdrawal-bank-integrated.ts
@@ -19,13 +19,12 @@
  */
 import { runTest, GlobalTestState } from "./harness";
 import { createSimpleTestkudosEnvironment } from "./helpers";
-import { walletTypes } from "taler-wallet-core";
+import { codecForBalancesResponse } from "taler-wallet-core";
 
 /**
  * Run test for basic, bank-integrated withdrawal.
  */
 runTest(async (t: GlobalTestState) => {
-  
   // Set up test environment
 
   const { wallet, bank, exchange } = await createSimpleTestkudosEnvironment(t);
@@ -61,8 +60,8 @@ runTest(async (t: GlobalTestState) => {
 
   const balApiResp = await wallet.apiRequest("getBalances", {});
   t.assertTrue(balApiResp.type === "response");
-  const balResp = 
walletTypes.codecForBalancesResponse().decode(balApiResp.result);
-  t.assertAmountEquals("TESTKUDOS:9.72", balResp.balances[0].available)
+  const balResp = codecForBalancesResponse().decode(balApiResp.result);
+  t.assertAmountEquals("TESTKUDOS:9.72", balResp.balances[0].available);
 
   await t.shutdown();
 });
diff --git a/packages/taler-integrationtests/src/test-withdrawal-manual.ts 
b/packages/taler-integrationtests/src/test-withdrawal-manual.ts
index afaf41e6..0d09c3e5 100644
--- a/packages/taler-integrationtests/src/test-withdrawal-manual.ts
+++ b/packages/taler-integrationtests/src/test-withdrawal-manual.ts
@@ -19,17 +19,21 @@
  */
 import { runTest, GlobalTestState } from "./harness";
 import { createSimpleTestkudosEnvironment } from "./helpers";
-import { walletTypes } from "taler-wallet-core";
 import { CoreApiResponse } from "taler-wallet-core/lib/walletCoreApiHandler";
+import { codecForBalancesResponse } from "taler-wallet-core";
 
 /**
  * Run test for basic, bank-integrated withdrawal.
  */
 runTest(async (t: GlobalTestState) => {
-  
   // Set up test environment
 
-  const { wallet, bank, exchange, exchangeBankAccount } = await 
createSimpleTestkudosEnvironment(t);
+  const {
+    wallet,
+    bank,
+    exchange,
+    exchangeBankAccount,
+  } = await createSimpleTestkudosEnvironment(t);
 
   // Create a withdrawal operation
 
@@ -67,8 +71,8 @@ runTest(async (t: GlobalTestState) => {
 
   const balApiResp = await wallet.apiRequest("getBalances", {});
   t.assertTrue(balApiResp.type === "response");
-  const balResp = 
walletTypes.codecForBalancesResponse().decode(balApiResp.result);
-  t.assertAmountEquals("TESTKUDOS:9.72", balResp.balances[0].available)
+  const balResp = codecForBalancesResponse().decode(balApiResp.result);
+  t.assertAmountEquals("TESTKUDOS:9.72", balResp.balances[0].available);
 
   await t.shutdown();
 });
diff --git a/packages/taler-wallet-android/package.json 
b/packages/taler-wallet-android/package.json
index 52d45fe3..7fdafa25 100644
--- a/packages/taler-wallet-android/package.json
+++ b/packages/taler-wallet-android/package.json
@@ -14,7 +14,7 @@
   "license": "GPL-3.0",
   "scripts": {
     "compile": "tsc && rollup -c",
-    "pretty": "prettier --config ../../.prettierrc --write src",
+    "pretty": "prettier --write src",
     "test": "tsc && ava",
     "coverage": "tsc && nyc ava",
     "clean": "rimraf lib dist"
@@ -33,6 +33,7 @@
     "@rollup/plugin-node-resolve": "^8.4.0",
     "@rollup/plugin-replace": "^2.3.3",
     "@types/node": "^14.0.27",
+    "prettier": "^2.0.5",
     "rimraf": "^3.0.2",
     "rollup": "^2.23.0",
     "rollup-plugin-sourcemaps": "^0.6.2",
diff --git a/packages/taler-wallet-android/src/index.ts 
b/packages/taler-wallet-android/src/index.ts
index c949a477..4430848c 100644
--- a/packages/taler-wallet-android/src/index.ts
+++ b/packages/taler-wallet-android/src/index.ts
@@ -21,42 +21,47 @@ import {
   Wallet,
   getDefaultNodeWallet,
   DefaultNodeWalletArgs,
-  versions,
-  httpLib,
-  nodeThreadWorker,
-  promiseUtil,
   NodeHttpLib,
-  walletCoreApi,
-  walletNotifications,
   TalerErrorCode,
   makeErrorDetails,
+  handleWorkerError,
+  handleWorkerMessage,
+  HttpRequestLibrary,
+  OpenedPromise,
+  HttpResponse,
+  HttpRequestOptions,
+  openPromise,
+  Headers,
+  CoreApiEnvelope,
+  CoreApiResponse,
+  CoreApiResponseSuccess,
+  WalletNotification,
+  WALLET_EXCHANGE_PROTOCOL_VERSION,
+  WALLET_MERCHANT_PROTOCOL_VERSION,
+  handleCoreApiRequest,
 } from "taler-wallet-core";
 
 import fs from "fs";
 
-export const handleWorkerError = nodeThreadWorker.handleWorkerError;
-export const handleWorkerMessage = nodeThreadWorker.handleWorkerMessage;
+export { handleWorkerError, handleWorkerMessage };
 
-export class AndroidHttpLib implements httpLib.HttpRequestLibrary {
+export class AndroidHttpLib implements HttpRequestLibrary {
   useNfcTunnel = false;
 
-  private nodeHttpLib: httpLib.HttpRequestLibrary = new NodeHttpLib();
+  private nodeHttpLib: HttpRequestLibrary = new NodeHttpLib();
 
   private requestId = 1;
 
   private requestMap: {
-    [id: number]: promiseUtil.OpenedPromise<httpLib.HttpResponse>;
+    [id: number]: OpenedPromise<HttpResponse>;
   } = {};
 
   constructor(private sendMessage: (m: string) => void) {}
 
-  get(
-    url: string,
-    opt?: httpLib.HttpRequestOptions,
-  ): Promise<httpLib.HttpResponse> {
+  get(url: string, opt?: HttpRequestOptions): Promise<HttpResponse> {
     if (this.useNfcTunnel) {
       const myId = this.requestId++;
-      const p = promiseUtil.openPromise<httpLib.HttpResponse>();
+      const p = openPromise<HttpResponse>();
       this.requestMap[myId] = p;
       const request = {
         method: "get",
@@ -78,11 +83,11 @@ export class AndroidHttpLib implements 
httpLib.HttpRequestLibrary {
   postJson(
     url: string,
     body: any,
-    opt?: httpLib.HttpRequestOptions,
-  ): Promise<httpLib.HttpResponse> {
+    opt?: HttpRequestOptions,
+  ): Promise<HttpResponse> {
     if (this.useNfcTunnel) {
       const myId = this.requestId++;
-      const p = promiseUtil.openPromise<httpLib.HttpResponse>();
+      const p = openPromise<HttpResponse>();
       this.requestMap[myId] = p;
       const request = {
         method: "postJson",
@@ -106,9 +111,9 @@ export class AndroidHttpLib implements 
httpLib.HttpRequestLibrary {
         `no matching request for tunneled HTTP response, id=${myId}`,
       );
     }
-    const headers = new httpLib.Headers();
+    const headers = new Headers();
     if (msg.status != 0) {
-      const resp: httpLib.HttpResponse = {
+      const resp: HttpResponse = {
         // FIXME: pass through this URL
         requestUrl: "",
         headers,
@@ -125,7 +130,7 @@ export class AndroidHttpLib implements 
httpLib.HttpRequestLibrary {
   }
 }
 
-function sendAkonoMessage(ev: walletCoreApi.CoreApiEnvelope): void {
+function sendAkonoMessage(ev: CoreApiEnvelope): void {
   // @ts-ignore
   const sendMessage = globalThis.__akono_sendMessage;
   if (typeof sendMessage !== "function") {
@@ -142,7 +147,7 @@ function sendAkonoMessage(ev: 
walletCoreApi.CoreApiEnvelope): void {
 class AndroidWalletMessageHandler {
   walletArgs: DefaultNodeWalletArgs | undefined;
   maybeWallet: Wallet | undefined;
-  wp = promiseUtil.openPromise<Wallet>();
+  wp = openPromise<Wallet>();
   httpLib = new NodeHttpLib();
 
   /**
@@ -152,10 +157,8 @@ class AndroidWalletMessageHandler {
     operation: string,
     id: string,
     args: any,
-  ): Promise<walletCoreApi.CoreApiResponse> {
-    const wrapResponse = (
-      result: unknown,
-    ): walletCoreApi.CoreApiResponseSuccess => {
+  ): Promise<CoreApiResponse> {
+    const wrapResponse = (result: unknown): CoreApiResponseSuccess => {
       return {
         type: "response",
         id,
@@ -166,9 +169,7 @@ class AndroidWalletMessageHandler {
     switch (operation) {
       case "init": {
         this.walletArgs = {
-          notifyHandler: async (
-            notification: walletNotifications.WalletNotification,
-          ) => {
+          notifyHandler: async (notification: WalletNotification) => {
             sendAkonoMessage({ type: "notification", payload: notification });
           },
           persistentStoragePath: args.persistentStoragePath,
@@ -182,8 +183,8 @@ class AndroidWalletMessageHandler {
         this.wp.resolve(w);
         return wrapResponse({
           supported_protocol_versions: {
-            exchange: versions.WALLET_EXCHANGE_PROTOCOL_VERSION,
-            merchant: versions.WALLET_MERCHANT_PROTOCOL_VERSION,
+            exchange: WALLET_EXCHANGE_PROTOCOL_VERSION,
+            merchant: WALLET_MERCHANT_PROTOCOL_VERSION,
           },
         });
       }
@@ -216,7 +217,7 @@ class AndroidWalletMessageHandler {
         }
         const wallet = await this.wp.promise;
         wallet.stop();
-        this.wp = promiseUtil.openPromise<Wallet>();
+        this.wp = openPromise<Wallet>();
         this.maybeWallet = undefined;
         const w = await getDefaultNodeWallet(this.walletArgs);
         this.maybeWallet = w;
@@ -228,12 +229,7 @@ class AndroidWalletMessageHandler {
       }
       default: {
         const wallet = await this.wp.promise;
-        return await walletCoreApi.handleCoreApiRequest(
-          wallet,
-          operation,
-          id,
-          args,
-        );
+        return await handleCoreApiRequest(wallet, operation, id, args);
       }
     }
   }
@@ -264,7 +260,7 @@ export function installAndroidWalletListener(): void {
       );
       sendAkonoMessage(respMsg);
     } catch (e) {
-      const respMsg: walletCoreApi.CoreApiResponse = {
+      const respMsg: CoreApiResponse = {
         type: "error",
         id,
         operation,
diff --git a/packages/taler-wallet-cli/package.json 
b/packages/taler-wallet-cli/package.json
index efe38f7c..1870aa29 100644
--- a/packages/taler-wallet-cli/package.json
+++ b/packages/taler-wallet-cli/package.json
@@ -18,7 +18,7 @@
   "scripts": {
     "compile": "tsc && rollup -c",
     "clean": "rimraf lib dist",
-    "pretty": "prettier --config ../../.prettierrc --write src"
+    "pretty": "prettier --write src"
   },
   "files": [
     "AUTHORS",
@@ -34,6 +34,7 @@
     "@rollup/plugin-node-resolve": "^8.4.0",
     "@rollup/plugin-replace": "^2.3.3",
     "@types/node": "^14.0.27",
+    "prettier": "^2.0.5",
     "rimraf": "^3.0.2",
     "rollup": "^2.23.0",
     "rollup-plugin-sourcemaps": "^0.6.2",
diff --git a/packages/taler-wallet-cli/src/index.ts 
b/packages/taler-wallet-cli/src/index.ts
index 77b7da1d..16897b7a 100644
--- a/packages/taler-wallet-cli/src/index.ts
+++ b/packages/taler-wallet-cli/src/index.ts
@@ -23,15 +23,17 @@ import {
   Wallet,
   OperationFailedAndReportedError,
   OperationFailedError,
-  time,
-  taleruri,
-  walletTypes,
-  talerCrypto,
-  payto,
-  codec,
-  testvectors,
-  walletCoreApi,
   NodeHttpLib,
+  PreparePayResultType,
+  setDangerousTimetravel,
+  handleCoreApiRequest,
+  classifyTalerUri,
+  TalerUriType,
+  decodeCrock,
+  addPaytoQueryParams,
+  makeCodecForList,
+  codecForString,
+  printTestVectors,
 } from "taler-wallet-core";
 import * as clk from "./clk";
 import { NodeThreadCryptoWorkerFactory } from 
"taler-wallet-core/lib/crypto/workers/nodeThreadWorker";
@@ -39,7 +41,7 @@ import { CryptoApi } from 
"taler-wallet-core/lib/crypto/workers/cryptoApi";
 
 // This module also serves as the entry point for the crypto
 // thread worker, and thus must expose these two handlers.
-export { handleWorkerError, handleWorkerMessage  } from "taler-wallet-core";
+export { handleWorkerError, handleWorkerMessage } from "taler-wallet-core";
 
 const logger = new Logger("taler-wallet-cli.ts");
 
@@ -55,13 +57,13 @@ async function doPay(
   options: { alwaysYes: boolean } = { alwaysYes: true },
 ): Promise<void> {
   const result = await wallet.preparePayForUri(payUrl);
-  if (result.status === walletTypes.PreparePayResultType.InsufficientBalance) {
+  if (result.status === PreparePayResultType.InsufficientBalance) {
     console.log("contract", result.contractTerms);
     console.error("insufficient balance");
     process.exit(1);
     return;
   }
-  if (result.status === walletTypes.PreparePayResultType.AlreadyConfirmed) {
+  if (result.status === PreparePayResultType.AlreadyConfirmed) {
     if (result.paid) {
       console.log("already paid!");
     } else {
@@ -127,7 +129,7 @@ export const walletCli = clk
     onPresentHandler: (x) => {
       // Convert microseconds to milliseconds and do timetravel
       logger.info(`timetravelling ${x} microseconds`);
-      time.setDangerousTimetravel(x / 1000);
+      setDangerousTimetravel(x / 1000);
     },
   })
   .maybeOption("inhibit", ["--inhibit"], clk.STRING, {
@@ -208,7 +210,7 @@ walletCli
         console.error("Invalid JSON");
         process.exit(1);
       }
-      const resp = await walletCoreApi.handleCoreApiRequest(
+      const resp = await handleCoreApiRequest(
         wallet,
         args.api.operation,
         "reqid-1",
@@ -277,22 +279,22 @@ walletCli
   .action(async (args) => {
     await withWallet(args, async (wallet) => {
       const uri: string = args.handleUri.uri;
-      const uriType = taleruri.classifyTalerUri(uri);
+      const uriType = classifyTalerUri(uri);
       switch (uriType) {
-        case taleruri.TalerUriType.TalerPay:
+        case TalerUriType.TalerPay:
           await doPay(wallet, uri, { alwaysYes: args.handleUri.autoYes });
           break;
-        case taleruri.TalerUriType.TalerTip:
+        case TalerUriType.TalerTip:
           {
             const res = await wallet.getTipStatus(uri);
             console.log("tip status", res);
             await wallet.acceptTip(res.tipId);
           }
           break;
-        case taleruri.TalerUriType.TalerRefund:
+        case TalerUriType.TalerRefund:
           await wallet.applyRefund(uri);
           break;
-        case taleruri.TalerUriType.TalerWithdraw:
+        case TalerUriType.TalerWithdraw:
           {
             const withdrawInfo = await wallet.getWithdrawalDetailsForUri(uri);
             const selectedExchange = withdrawInfo.defaultExchangeBaseUrl;
@@ -419,7 +421,7 @@ advancedCli
   })
   .action((args) => {
     const enc = fs.readFileSync(0, "utf8");
-    fs.writeFileSync(1, talerCrypto.decodeCrock(enc.trim()));
+    fs.writeFileSync(1, decodeCrock(enc.trim()));
   });
 
 advancedCli
@@ -446,7 +448,7 @@ advancedCli
         exchange.baseUrl,
         Amounts.parseOrThrow(args.withdrawManually.amount),
       );
-      const completePaytoUri = payto.addPaytoQueryParams(acct.payto_uri, {
+      const completePaytoUri = addPaytoQueryParams(acct.payto_uri, {
         amount: args.withdrawManually.amount,
         message: `Taler top-up ${reserve.reservePub}`,
       });
@@ -490,17 +492,17 @@ advancedCli
     await withWallet(args, async (wallet) => {
       const res = await wallet.preparePayForUri(args.payPrepare.url);
       switch (res.status) {
-        case walletTypes.PreparePayResultType.InsufficientBalance:
+        case PreparePayResultType.InsufficientBalance:
           console.log("insufficient balance");
           break;
-        case walletTypes.PreparePayResultType.AlreadyConfirmed:
+        case PreparePayResultType.AlreadyConfirmed:
           if (res.paid) {
             console.log("already paid!");
           } else {
             console.log("payment in progress");
           }
           break;
-        case walletTypes.PreparePayResultType.PaymentPossible:
+        case PreparePayResultType.PaymentPossible:
           console.log("payment possible");
           break;
         default:
@@ -546,7 +548,7 @@ advancedCli
     });
   });
 
-const coinPubListCodec = codec.makeCodecForList(codec.codecForString);
+const coinPubListCodec = makeCodecForList(codecForString);
 
 advancedCli
   .subcommand("suspendCoins", "suspend-coins", {
@@ -640,7 +642,7 @@ const testCli = walletCli.subcommand("testingArgs", 
"testing", {
 });
 
 testCli.subcommand("vectors", "vectors").action(async (args) => {
-  testvectors.printTestVectors();
+  printTestVectors();
 });
 
 testCli.subcommand("cryptoworker", "cryptoworker").action(async (args) => {
diff --git a/packages/taler-wallet-core/package.json 
b/packages/taler-wallet-core/package.json
index 981504e4..73bb530b 100644
--- a/packages/taler-wallet-core/package.json
+++ b/packages/taler-wallet-core/package.json
@@ -13,7 +13,7 @@
   "license": "GPL-3.0",
   "scripts": {
     "compile": "tsc && rollup -c",
-    "pretty": "prettier --config ../../.prettierrc --write src",
+    "pretty": "prettier --write src",
     "test": "tsc && ava",
     "coverage": "tsc && nyc ava",
     "clean": "rimraf dist lib"
diff --git a/packages/taler-wallet-core/src/crypto/workers/cryptoApi.ts 
b/packages/taler-wallet-core/src/crypto/workers/cryptoApi.ts
index 20d13a3f..802a153f 100644
--- a/packages/taler-wallet-core/src/crypto/workers/cryptoApi.ts
+++ b/packages/taler-wallet-core/src/crypto/workers/cryptoApi.ts
@@ -46,7 +46,6 @@ import {
 
 import * as timer from "../../util/timer";
 import { Logger } from "../../util/logging";
-import { walletCoreApi } from "../..";
 
 const logger = new Logger("cryptoApi.ts");
 
diff --git a/packages/taler-wallet-core/src/crypto/workers/nodeThreadWorker.ts 
b/packages/taler-wallet-core/src/crypto/workers/nodeThreadWorker.ts
index d4d85833..48efdbce 100644
--- a/packages/taler-wallet-core/src/crypto/workers/nodeThreadWorker.ts
+++ b/packages/taler-wallet-core/src/crypto/workers/nodeThreadWorker.ts
@@ -149,7 +149,7 @@ class NodeThreadCryptoWorker implements CryptoWorker {
     const worker_threads = require("worker_threads");
 
     logger.trace("starting node crypto worker");
-    
+
     this.nodeWorker = new worker_threads.Worker(workerCode, { eval: true });
     this.nodeWorker.on("error", (err: Error) => {
       console.error("error in node worker:", err);
diff --git a/packages/taler-wallet-core/src/index.ts 
b/packages/taler-wallet-core/src/index.ts
index 5c4961bd..954798e4 100644
--- a/packages/taler-wallet-core/src/index.ts
+++ b/packages/taler-wallet-core/src/index.ts
@@ -26,57 +26,52 @@ export {
 export { Amounts, AmountJson } from "./util/amounts";
 export { Logger } from "./util/logging";
 
-export * as talerCrypto from "./crypto/talerCrypto";
+export * from "./crypto/talerCrypto";
 export {
   OperationFailedAndReportedError,
   OperationFailedError,
   makeErrorDetails,
 } from "./operations/errors";
 
-export * as walletTypes from "./types/walletTypes";
+export * from "./types/walletTypes";
 
-export * as talerTypes from "./types/talerTypes";
+export * from "./types/talerTypes";
 
-export * as walletCoreApi from "./walletCoreApiHandler";
+export * from "./walletCoreApiHandler";
 
-export * as taleruri from "./util/taleruri";
+export * from "./util/taleruri";
 
-export * as time from "./util/time";
+export * from "./util/time";
 
-export * as codec from "./util/codec";
+export * from "./util/codec";
 
 export { NodeHttpLib } from "./headless/NodeHttpLib";
 
-export * as payto from "./util/payto";
+export * from "./util/payto";
 
-export * as testvectors from "./util/testvectors";
+export * from "./util/testvectors";
 
-export * as versions from "./operations/versions";
+export * from "./operations/versions";
 
 export type { CryptoWorker } from "./crypto/workers/cryptoWorker";
 export type { CryptoWorkerFactory } from "./crypto/workers/cryptoApi";
 
-export * as httpLib from "./util/http";
+export * from "./util/http";
 
 export { TalerErrorCode } from "./TalerErrorCode";
 
-export * as queryLib from "./util/query";
+export * from "./util/query";
 
 export { CryptoImplementation } from "./crypto/workers/cryptoImplementation";
 
-export * as db from "./db";
+export * from "./db";
 
-export * as promiseUtil from "./util/promiseUtils";
+export * from "./util/promiseUtils";
 
-export * as i18n from "./i18n";
+export * from "./i18n";
 
-export * as nodeThreadWorker from "./crypto/workers/nodeThreadWorker";
+export * from "./crypto/workers/nodeThreadWorker";
 
-export * as walletNotifications from "./types/notifications";
+export * from "./types/notifications";
 
 export { Configuration } from "./util/talerconfig";
-
-export {
-  handleWorkerMessage,
-  handleWorkerError,
-} from "./crypto/workers/nodeThreadWorker";
diff --git a/packages/taler-wallet-core/src/operations/refund.ts 
b/packages/taler-wallet-core/src/operations/refund.ts
index d7aaf727..1462600f 100644
--- a/packages/taler-wallet-core/src/operations/refund.ts
+++ b/packages/taler-wallet-core/src/operations/refund.ts
@@ -413,7 +413,8 @@ export async function applyRefund(
         ).amount,
       ).amount;
     } else {
-      amountRefundGone = Amounts.add(amountRefundGone, 
refund.refundAmount).amount;
+      amountRefundGone = Amounts.add(amountRefundGone, refund.refundAmount)
+        .amount;
     }
   });
 
diff --git a/packages/taler-wallet-core/src/types/walletTypes.ts 
b/packages/taler-wallet-core/src/types/walletTypes.ts
index 26d7e8e0..8faace03 100644
--- a/packages/taler-wallet-core/src/types/walletTypes.ts
+++ b/packages/taler-wallet-core/src/types/walletTypes.ts
@@ -44,7 +44,6 @@ import {
   codecForBoolean,
 } from "../util/codec";
 import { AmountString } from "./talerTypes";
-import { codec } from "..";
 import { TransactionError } from "./transactions";
 
 /**
@@ -202,20 +201,18 @@ export const enum ConfirmPayResultType {
  * Result for confirmPay
  */
 export interface ConfirmPayResultDone {
-  type: ConfirmPayResultType.Done,
+  type: ConfirmPayResultType.Done;
 
   nextUrl: string;
 }
 
 export interface ConfirmPayResultPending {
-  type: ConfirmPayResultType.Pending,
+  type: ConfirmPayResultType.Pending;
 
   lastError: TransactionError;
 }
 
-export type ConfirmPayResult =
-  | ConfirmPayResultDone
-  | ConfirmPayResultPending
+export type ConfirmPayResult = ConfirmPayResultDone | ConfirmPayResultPending;
 
 /**
  * Information about all sender wire details known to the wallet,
diff --git a/packages/taler-wallet-core/src/util/talerconfig-test.ts 
b/packages/taler-wallet-core/src/util/talerconfig-test.ts
index 71359fd3..2f920fcc 100644
--- a/packages/taler-wallet-core/src/util/talerconfig-test.ts
+++ b/packages/taler-wallet-core/src/util/talerconfig-test.ts
@@ -29,7 +29,7 @@ test("pathsub", (t) => {
     w: "world",
     f: "foo",
     "1foo": "x",
-    "foo_bar": "quux",
+    foo_bar: "quux",
   };
 
   t.is(
diff --git a/packages/taler-wallet-core/src/util/talerconfig.ts 
b/packages/taler-wallet-core/src/util/talerconfig.ts
index e9a67287..d121601c 100644
--- a/packages/taler-wallet-core/src/util/talerconfig.ts
+++ b/packages/taler-wallet-core/src/util/talerconfig.ts
@@ -79,7 +79,7 @@ export class ConfigValue<T> {
 
 /**
  * Shell-style path substitution.
- * 
+ *
  * Supported patterns:
  * "$x" (look up "x")
  * "${x}" (look up "x")
@@ -240,7 +240,9 @@ export class Configuration {
       } else if (x === "no") {
         return false;
       }
-      throw Error(`invalid config value for [${secNorm}]/${optNorm}, expected 
yes/no`);
+      throw Error(
+        `invalid config value for [${secNorm}]/${optNorm}, expected yes/no`,
+      );
     };
     return new ConfigValue(secNorm, optNorm, val, convert);
   }
@@ -253,7 +255,9 @@ export class Configuration {
       try {
         return Number.parseInt(x, 10);
       } catch (e) {
-        throw Error(`invalid config value for [${secNorm}]/${optNorm}, 
expected number`);  
+        throw Error(
+          `invalid config value for [${secNorm}]/${optNorm}, expected number`,
+        );
       }
     };
     return new ConfigValue(secNorm, optNorm, val, convert);
diff --git a/packages/taler-wallet-core/src/util/timer.ts 
b/packages/taler-wallet-core/src/util/timer.ts
index d652fdcd..75fb5c9c 100644
--- a/packages/taler-wallet-core/src/util/timer.ts
+++ b/packages/taler-wallet-core/src/util/timer.ts
@@ -121,7 +121,7 @@ const nullTimerHandle = {
   unref() {
     // do nothing
     return;
-  }
+  },
 };
 
 /**
@@ -173,7 +173,7 @@ export class TimerGroup {
       },
       unref() {
         h.unref();
-      }
+      },
     };
   }
 
@@ -195,7 +195,7 @@ export class TimerGroup {
       },
       unref() {
         h.unref();
-      }
+      },
     };
   }
 }
diff --git a/packages/taler-wallet-webextension/src/browserHttpLib.ts 
b/packages/taler-wallet-webextension/src/browserHttpLib.ts
index 42c0c4f0..c568862d 100644
--- a/packages/taler-wallet-webextension/src/browserHttpLib.ts
+++ b/packages/taler-wallet-webextension/src/browserHttpLib.ts
@@ -1,5 +1,30 @@
+/*
+ This file is part of GNU Taler
+ (C) 2020 Taler Systems S.A.
 
-import { httpLib, OperationFailedError, Logger } from "taler-wallet-core";
+ GNU Taler is free software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with
+ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+/**
+ * Imports.
+ */
+import {
+  OperationFailedError,
+  Logger,
+  HttpRequestLibrary,
+  HttpRequestOptions,
+  HttpResponse,
+  Headers,
+} from "taler-wallet-core";
 import { TalerErrorCode } from "taler-wallet-core/lib/TalerErrorCode";
 
 const logger = new Logger("browserHttpLib");
@@ -8,14 +33,14 @@ const logger = new Logger("browserHttpLib");
  * An implementation of the [[HttpRequestLibrary]] using the
  * browser's XMLHttpRequest.
  */
-export class BrowserHttpLib implements httpLib.HttpRequestLibrary {
+export class BrowserHttpLib implements HttpRequestLibrary {
   private req(
     method: string,
     url: string,
     requestBody?: any,
-    options?: httpLib.HttpRequestOptions,
-  ): Promise<httpLib.HttpResponse> {
-    return new Promise<httpLib.HttpResponse>((resolve, reject) => {
+    options?: HttpRequestOptions,
+  ): Promise<HttpResponse> {
+    return new Promise<HttpResponse>((resolve, reject) => {
       const myRequest = new XMLHttpRequest();
       myRequest.open(method, url);
       if (options?.headers) {
@@ -87,7 +112,7 @@ export class BrowserHttpLib implements 
httpLib.HttpRequestLibrary {
           const arr = headers.trim().split(/[\r\n]+/);
 
           // Create a map of header names to values
-          const headerMap: httpLib.Headers = new httpLib.Headers();
+          const headerMap: Headers = new Headers();
           arr.forEach(function (line) {
             const parts = line.split(": ");
             const headerName = parts.shift();
@@ -98,7 +123,7 @@ export class BrowserHttpLib implements 
httpLib.HttpRequestLibrary {
             const value = parts.join(": ");
             headerMap.set(headerName, value);
           });
-          const resp: httpLib.HttpResponse = {
+          const resp: HttpResponse = {
             requestUrl: url,
             status: myRequest.status,
             headers: headerMap,
@@ -112,19 +137,19 @@ export class BrowserHttpLib implements 
httpLib.HttpRequestLibrary {
     });
   }
 
-  get(url: string, opt?: httpLib.HttpRequestOptions): 
Promise<httpLib.HttpResponse> {
+  get(url: string, opt?: HttpRequestOptions): Promise<HttpResponse> {
     return this.req("GET", url, undefined, opt);
   }
 
   postJson(
     url: string,
     body: unknown,
-    opt?: httpLib.HttpRequestOptions,
-  ): Promise<httpLib.HttpResponse> {
+    opt?: HttpRequestOptions,
+  ): Promise<HttpResponse> {
     return this.req("POST", url, JSON.stringify(body), opt);
   }
 
   stop(): void {
     // Nothing to do
   }
-}
\ No newline at end of file
+}
diff --git a/packages/taler-wallet-webextension/src/i18n.tsx 
b/packages/taler-wallet-webextension/src/i18n.tsx
index afbb0e27..bd74316f 100644
--- a/packages/taler-wallet-webextension/src/i18n.tsx
+++ b/packages/taler-wallet-webextension/src/i18n.tsx
@@ -23,7 +23,7 @@
  */
 import React from "react";
 
-import { i18n as i18nCore } from "taler-wallet-core";
+import * as i18nCore from "taler-wallet-core";
 /**
  * Convert template strings to a msgid
  */
diff --git a/packages/taler-wallet-webextension/src/pages/pay.tsx 
b/packages/taler-wallet-webextension/src/pages/pay.tsx
index b876a9c5..1e1f91ca 100644
--- a/packages/taler-wallet-webextension/src/pages/pay.tsx
+++ b/packages/taler-wallet-webextension/src/pages/pay.tsx
@@ -30,10 +30,10 @@ import * as wxApi from "../wxApi";
 
 import React, { useState, useEffect } from "react";
 
-import { Amounts, AmountJson, walletTypes, talerTypes } from 
"taler-wallet-core";
+import { Amounts, AmountJson, PreparePayResult, PreparePayResultType, 
ContractTerms, codecForContractTerms, ConfirmPayResultType } from 
"taler-wallet-core";
 
 function TalerPayDialog({ talerPayUri }: { talerPayUri: string }): JSX.Element 
{
-  const [payStatus, setPayStatus] = useState<walletTypes.PreparePayResult | 
undefined>();
+  const [payStatus, setPayStatus] = useState<PreparePayResult | undefined>();
   const [payErrMsg, setPayErrMsg] = useState<string | undefined>("");
   const [numTries, setNumTries] = useState(0);
   const [loading, setLoading] = useState(false);
@@ -60,7 +60,7 @@ function TalerPayDialog({ talerPayUri }: { talerPayUri: 
string }): JSX.Element {
     amountEffective = Amounts.parseOrThrow(payStatus.amountEffective);
   }
 
-  if (payStatus.status === walletTypes.PreparePayResultType.AlreadyConfirmed 
&& numTries === 0) {
+  if (payStatus.status === PreparePayResultType.AlreadyConfirmed && numTries 
=== 0) {
     return (
       <span>
         You have already paid for this article. Click{" "}
@@ -69,10 +69,10 @@ function TalerPayDialog({ talerPayUri }: { talerPayUri: 
string }): JSX.Element {
     );
   }
 
-  let contractTerms: talerTypes.ContractTerms;
+  let contractTerms: ContractTerms;
 
   try {
-    contractTerms = 
talerTypes.codecForContractTerms().decode(payStatus.contractTerms);
+    contractTerms = codecForContractTerms().decode(payStatus.contractTerms);
   } catch (e) {
     // This should never happen, as the wallet is supposed to check the 
contract terms
     // before storing them.
@@ -109,7 +109,7 @@ function TalerPayDialog({ talerPayUri }: { talerPayUri: 
string }): JSX.Element {
     try {
       setLoading(true);
       const res = await wxApi.confirmPay(proposalId, undefined);
-      if (res.type !== walletTypes.ConfirmPayResultType.Done) {
+      if (res.type !== ConfirmPayResultType.Done) {
         throw Error("payment pending");
       }
       document.location.href = res.nextUrl;
diff --git a/packages/taler-wallet-webextension/src/pages/popup.tsx 
b/packages/taler-wallet-webextension/src/pages/popup.tsx
index 72c9f4bc..61edcfe5 100644
--- a/packages/taler-wallet-webextension/src/pages/popup.tsx
+++ b/packages/taler-wallet-webextension/src/pages/popup.tsx
@@ -29,9 +29,10 @@ import * as i18n from "../i18n";
 import {
   AmountJson,
   Amounts,
-  time,
-  taleruri,
-  walletTypes,
+  BalancesResponse,
+  Balance,
+  classifyTalerUri,
+  TalerUriType,
 } from "taler-wallet-core";
 
 
@@ -174,7 +175,7 @@ function EmptyBalanceView(): JSX.Element {
 }
 
 class WalletBalanceView extends React.Component<any, any> {
-  private balance?: walletTypes.BalancesResponse;
+  private balance?: BalancesResponse;
   private gotError = false;
   private canceler: (() => void) | undefined = undefined;
   private unmount = false;
@@ -198,7 +199,7 @@ class WalletBalanceView extends React.Component<any, any> {
       return;
     }
     this.updateBalanceRunning = true;
-    let balance: walletTypes.BalancesResponse;
+    let balance: BalancesResponse;
     try {
       balance = await wxApi.getBalance();
     } catch (e) {
@@ -221,7 +222,7 @@ class WalletBalanceView extends React.Component<any, any> {
     this.setState({});
   }
 
-  formatPending(entry: walletTypes.Balance): JSX.Element {
+  formatPending(entry: Balance): JSX.Element {
     let incoming: JSX.Element | undefined;
     let payment: JSX.Element | undefined;
 
@@ -393,25 +394,25 @@ function makeExtensionUrlWithParams(
 }
 
 function actionForTalerUri(talerUri: string): string | undefined {
-  const uriType = taleruri.classifyTalerUri(talerUri);
+  const uriType = classifyTalerUri(talerUri);
   switch (uriType) {
-    case taleruri.TalerUriType.TalerWithdraw:
+    case TalerUriType.TalerWithdraw:
       return makeExtensionUrlWithParams("withdraw.html", {
         talerWithdrawUri: talerUri,
       });
-    case taleruri.TalerUriType.TalerPay:
+    case TalerUriType.TalerPay:
       return makeExtensionUrlWithParams("pay.html", {
         talerPayUri: talerUri,
       });
-    case taleruri.TalerUriType.TalerTip:
+    case TalerUriType.TalerTip:
       return makeExtensionUrlWithParams("tip.html", {
         talerTipUri: talerUri,
       });
-    case taleruri.TalerUriType.TalerRefund:
+    case TalerUriType.TalerRefund:
       return makeExtensionUrlWithParams("refund.html", {
         talerRefundUri: talerUri,
       });
-    case taleruri.TalerUriType.TalerNotifyReserve:
+    case TalerUriType.TalerNotifyReserve:
       // FIXME: implement
       break;
     default:
diff --git a/packages/taler-wallet-webextension/src/pages/refund.tsx 
b/packages/taler-wallet-webextension/src/pages/refund.tsx
index 7326dfc8..b34b98f6 100644
--- a/packages/taler-wallet-webextension/src/pages/refund.tsx
+++ b/packages/taler-wallet-webextension/src/pages/refund.tsx
@@ -21,15 +21,14 @@
  */
 
 import React, { useEffect, useState } from "react";
-
 import * as wxApi from "../wxApi";
 import { AmountView } from "../renderHtml";
-import { walletTypes } from "taler-wallet-core";
+import { PurchaseDetails } from "taler-wallet-core";
 
 function RefundStatusView(props: { talerRefundUri: string }): JSX.Element {
   const [applied, setApplied] = useState(false);
   const [purchaseDetails, setPurchaseDetails] = useState<
-    walletTypes.PurchaseDetails | undefined
+    PurchaseDetails | undefined
   >(undefined);
   const [errMsg, setErrMsg] = useState<string | undefined>(undefined);
 
diff --git a/packages/taler-wallet-webextension/src/pages/tip.tsx 
b/packages/taler-wallet-webextension/src/pages/tip.tsx
index 6cf4e187..1f164ad1 100644
--- a/packages/taler-wallet-webextension/src/pages/tip.tsx
+++ b/packages/taler-wallet-webextension/src/pages/tip.tsx
@@ -22,16 +22,13 @@
  */
 
 import * as React from "react";
-
 import { acceptTip, getTipStatus } from "../wxApi";
-
 import { renderAmount, ProgressButton } from "../renderHtml";
-
 import { useState, useEffect } from "react";
-import { walletTypes } from "taler-wallet-core";
+import { TipStatus } from "taler-wallet-core";
 
 function TipDisplay(props: { talerTipUri: string }): JSX.Element {
-  const [tipStatus, setTipStatus] = useState<walletTypes.TipStatus | 
undefined>(undefined);
+  const [tipStatus, setTipStatus] = useState<TipStatus | undefined>(undefined);
   const [discarded, setDiscarded] = useState(false);
   const [loading, setLoading] = useState(false);
   const [finished, setFinished] = useState(false);
diff --git a/packages/taler-wallet-webextension/src/pages/welcome.tsx 
b/packages/taler-wallet-webextension/src/pages/welcome.tsx
index ff5de572..00d8ae6c 100644
--- a/packages/taler-wallet-webextension/src/pages/welcome.tsx
+++ b/packages/taler-wallet-webextension/src/pages/welcome.tsx
@@ -26,11 +26,11 @@ import { PageLink } from "../renderHtml";
 import * as wxApi from "../wxApi";
 import { getPermissionsApi } from "../compat";
 import { extendedPermissions } from "../permissions";
-import { walletTypes } from "taler-wallet-core";
+import { WalletDiagnostics } from "taler-wallet-core";
 
 function Diagnostics(): JSX.Element | null {
   const [timedOut, setTimedOut] = useState(false);
-  const [diagnostics, setDiagnostics] = useState<walletTypes.WalletDiagnostics 
| undefined>(
+  const [diagnostics, setDiagnostics] = useState<WalletDiagnostics | 
undefined>(
     undefined,
   );
 
diff --git a/packages/taler-wallet-webextension/src/renderHtml.tsx 
b/packages/taler-wallet-webextension/src/renderHtml.tsx
index 89f6c12e..fcf64b6d 100644
--- a/packages/taler-wallet-webextension/src/renderHtml.tsx
+++ b/packages/taler-wallet-webextension/src/renderHtml.tsx
@@ -23,7 +23,7 @@
 /**
  * Imports.
  */
-import { AmountJson, Amounts, time, walletTypes } from "taler-wallet-core";
+import { AmountJson, Amounts, stringifyTimestamp, ExchangeWithdrawDetails } 
from "taler-wallet-core";
 import * as i18n from "./i18n";
 import React from "react";
 
@@ -127,7 +127,7 @@ export class Collapsible extends React.Component<
 
 function WireFee(props: {
   s: string;
-  rci: walletTypes.ExchangeWithdrawDetails;
+  rci: ExchangeWithdrawDetails;
 }): JSX.Element {
   return (
     <>
@@ -144,7 +144,7 @@ function WireFee(props: {
       <tbody>
         {props.rci.wireFees.feesForType[props.s].map((f) => (
           <tr key={f.sig}>
-            <td>{time.stringifyTimestamp(f.endStamp)}</td>
+            <td>{stringifyTimestamp(f.endStamp)}</td>
             <td>{renderAmount(f.wireFee)}</td>
             <td>{renderAmount(f.closingFee)}</td>
           </tr>
@@ -155,7 +155,7 @@ function WireFee(props: {
 }
 
 function AuditorDetailsView(props: {
-  rci: walletTypes.ExchangeWithdrawDetails | null;
+  rci: ExchangeWithdrawDetails | null;
 }): JSX.Element {
   const rci = props.rci;
   console.log("rci", rci);
@@ -192,7 +192,7 @@ function AuditorDetailsView(props: {
 }
 
 function FeeDetailsView(props: {
-  rci: walletTypes.ExchangeWithdrawDetails | null;
+  rci: ExchangeWithdrawDetails | null;
 }): JSX.Element {
   const rci = props.rci;
   if (!rci) {
@@ -222,7 +222,7 @@ function FeeDetailsView(props: {
       <p>
         {i18n.str`Rounding loss:`} {overhead}
       </p>
-      <p>{i18n.str`Earliest expiration (for deposit): 
${time.stringifyTimestamp(
+      <p>{i18n.str`Earliest expiration (for deposit): ${stringifyTimestamp(
         rci.earliestDepositExpiration,
       )}`}</p>
       <h3>Coin Fees</h3>
@@ -268,7 +268,7 @@ function FeeDetailsView(props: {
  * Shows details about a withdraw request.
  */
 export function WithdrawDetailView(props: {
-  rci: walletTypes.ExchangeWithdrawDetails | null;
+  rci: ExchangeWithdrawDetails | null;
 }): JSX.Element {
   const rci = props.rci;
   return (
diff --git a/packages/taler-wallet-webextension/src/wxApi.ts 
b/packages/taler-wallet-webextension/src/wxApi.ts
index ee86d90e..1bcee128 100644
--- a/packages/taler-wallet-webextension/src/wxApi.ts
+++ b/packages/taler-wallet-webextension/src/wxApi.ts
@@ -21,7 +21,7 @@
 /**
  * Imports.
  */
-import { AmountJson, walletTypes } from "taler-wallet-core";
+import { AmountJson, ConfirmPayResult, BalancesResponse, PurchaseDetails, 
TipStatus, BenchmarkResult, PreparePayResult, AcceptWithdrawalResponse, 
WalletDiagnostics } from "taler-wallet-core";
 
 
 export interface ExtendedPermissionsResponse {
@@ -101,7 +101,7 @@ export function refresh(coinPub: string): Promise<void> {
 export function confirmPay(
   proposalId: string,
   sessionId: string | undefined,
-): Promise<walletTypes.ConfirmPayResult> {
+): Promise<ConfirmPayResult> {
   return callBackend("confirm-pay", { proposalId, sessionId });
 }
 
@@ -122,7 +122,7 @@ export function resetDb(): Promise<void> {
 /**
  * Get balances for all currencies/exchanges.
  */
-export function getBalance(): Promise<walletTypes.BalancesResponse> {
+export function getBalance(): Promise<BalancesResponse> {
   return callBackend("balances", {});
 }
 
@@ -143,14 +143,14 @@ export function returnCoins(args: {
  */
 export function getPurchaseDetails(
   proposalId: string,
-): Promise<walletTypes.PurchaseDetails> {
+): Promise<PurchaseDetails> {
   return callBackend("get-purchase-details", { proposalId });
 }
 
 /**
  * Get the status of processing a tip.
  */
-export function getTipStatus(talerTipUri: string): 
Promise<walletTypes.TipStatus> {
+export function getTipStatus(talerTipUri: string): Promise<TipStatus> {
   return callBackend("get-tip-status", { talerTipUri });
 }
 
@@ -180,14 +180,14 @@ export function abortFailedPayment(contractTermsHash: 
string): Promise<void> {
 /**
  * Abort a failed payment and try to get a refund.
  */
-export function benchmarkCrypto(repetitions: number): 
Promise<walletTypes.BenchmarkResult> {
+export function benchmarkCrypto(repetitions: number): Promise<BenchmarkResult> 
{
   return callBackend("benchmark-crypto", { repetitions });
 }
 
 /**
  * Get details about a pay operation.
  */
-export function preparePay(talerPayUri: string): 
Promise<walletTypes.PreparePayResult> {
+export function preparePay(talerPayUri: string): Promise<PreparePayResult> {
   return callBackend("prepare-pay", { talerPayUri });
 }
 
@@ -197,7 +197,7 @@ export function preparePay(talerPayUri: string): 
Promise<walletTypes.PreparePayR
 export function acceptWithdrawal(
   talerWithdrawUri: string,
   selectedExchange: string,
-): Promise<walletTypes.AcceptWithdrawalResponse> {
+): Promise<AcceptWithdrawalResponse> {
   return callBackend("accept-withdrawal", {
     talerWithdrawUri,
     selectedExchange,
@@ -207,7 +207,7 @@ export function acceptWithdrawal(
 /**
  * Get diagnostics information
  */
-export function getDiagnostics(): Promise<walletTypes.WalletDiagnostics> {
+export function getDiagnostics(): Promise<WalletDiagnostics> {
   return callBackend("get-diagnostics", {});
 }
 
diff --git a/packages/taler-wallet-webextension/src/wxBackend.ts 
b/packages/taler-wallet-webextension/src/wxBackend.ts
index 8575c150..ce024e09 100644
--- a/packages/taler-wallet-webextension/src/wxBackend.ts
+++ b/packages/taler-wallet-webextension/src/wxBackend.ts
@@ -28,7 +28,7 @@ import * as wxApi from "./wxApi";
 import MessageSender = chrome.runtime.MessageSender;
 import { extendedPermissions } from "./permissions";
 
-import { Wallet, promiseUtil, db, walletTypes, taleruri, queryLib } from 
"taler-wallet-core";
+import { Wallet, OpenedPromise, openPromise, deleteTalerDatabase, 
WALLET_DB_MINOR_VERSION, WalletDiagnostics, openTalerDatabase, Database, 
classifyTalerUri, TalerUriType } from "taler-wallet-core";
 import { BrowserHttpLib } from "./browserHttpLib";
 import { BrowserCryptoWorkerFactory } from "./browserCryptoWorkerFactory";
 
@@ -47,7 +47,7 @@ let currentDatabase: IDBDatabase | undefined;
  */
 let outdatedDbVersion: number | undefined;
 
-const walletInit: promiseUtil.OpenedPromise<void> = 
promiseUtil.openPromise<void>();
+const walletInit: OpenedPromise<void> = openPromise<void>();
 
 const notificationPorts: chrome.runtime.Port[] = [];
 
@@ -78,7 +78,7 @@ async function handleMessage(
       return Promise.resolve();
     }
     case "reset-db": {
-      db.deleteTalerDatabase(indexedDB);
+      deleteTalerDatabase(indexedDB);
       setBadgeText({ text: "" });
       console.log("reset done");
       if (!currentWallet) {
@@ -148,7 +148,7 @@ async function handleMessage(
         dbResetRequired = true;
       }
       const resp: wxApi.UpgradeResponse = {
-        currentDbVersion: db.WALLET_DB_MINOR_VERSION.toString(),
+        currentDbVersion: WALLET_DB_MINOR_VERSION.toString(),
         dbResetRequired,
         oldDbVersion: (outdatedDbVersion || "unknown").toString(),
       };
@@ -217,7 +217,7 @@ async function handleMessage(
         errors.push(`Outdated DB version: ${outdatedDbVersion}`);
         dbOutdated = true;
       }
-      const diagnostics: walletTypes.WalletDiagnostics = {
+      const diagnostics: WalletDiagnostics = {
         walletManifestDisplayVersion:
           manifestData.version_name || "(undefined)",
         walletManifestVersion: manifestData.version,
@@ -368,7 +368,7 @@ async function reinitWallet(): Promise<void> {
   currentDatabase = undefined;
   setBadgeText({ text: "" });
   try {
-    currentDatabase = await db.openTalerDatabase(indexedDB, reinitWallet);
+    currentDatabase = await openTalerDatabase(indexedDB, reinitWallet);
   } catch (e) {
     console.error("could not open database", e);
     walletInit.reject(e);
@@ -377,7 +377,7 @@ async function reinitWallet(): Promise<void> {
   const http = new BrowserHttpLib();
   console.log("setting wallet");
   const wallet = new Wallet(
-    new queryLib.Database(currentDatabase),
+    new Database(currentDatabase),
     http,
     new BrowserCryptoWorkerFactory(),
   );
@@ -432,9 +432,9 @@ function headerListener(
     for (const header of details.responseHeaders || []) {
       if (header.name.toLowerCase() === "taler") {
         const talerUri = header.value || "";
-        const uriType = taleruri.classifyTalerUri(talerUri);
+        const uriType = classifyTalerUri(talerUri);
         switch (uriType) {
-          case taleruri.TalerUriType.TalerWithdraw:
+          case TalerUriType.TalerWithdraw:
             return makeSyncWalletRedirect(
               "withdraw.html",
               details.tabId,
@@ -443,7 +443,7 @@ function headerListener(
                 talerWithdrawUri: talerUri,
               },
             );
-          case taleruri.TalerUriType.TalerPay:
+          case TalerUriType.TalerPay:
             return makeSyncWalletRedirect(
               "pay.html",
               details.tabId,
@@ -452,7 +452,7 @@ function headerListener(
                 talerPayUri: talerUri,
               },
             );
-          case taleruri.TalerUriType.TalerTip:
+          case TalerUriType.TalerTip:
             return makeSyncWalletRedirect(
               "tip.html",
               details.tabId,
@@ -461,7 +461,7 @@ function headerListener(
                 talerTipUri: talerUri,
               },
             );
-          case taleruri.TalerUriType.TalerRefund:
+          case TalerUriType.TalerRefund:
             return makeSyncWalletRedirect(
               "refund.html",
               details.tabId,
@@ -470,7 +470,7 @@ function headerListener(
                 talerRefundUri: talerUri,
               },
             );
-          case taleruri.TalerUriType.TalerNotifyReserve:
+          case TalerUriType.TalerNotifyReserve:
             Promise.resolve().then(() => {
               const w = currentWallet;
               if (!w) {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 7ad4d642..72a09363 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -10,6 +10,7 @@ importers:
       '@rollup/plugin-typescript': 5.0.2_d508d998c8e6588bf77175f7541372d0
       ava: 3.11.0
       esm: 3.2.25
+      prettier: 2.0.5
       rimraf: 3.0.2
       rollup: 2.23.0
       typescript: 3.9.7
@@ -19,6 +20,7 @@ importers:
       '@types/node': ^14.0.27
       ava: ^3.10.1
       esm: ^3.2.25
+      prettier: ^2.0.5
       rimraf: ^3.0.2
       rollup: ^2.23.0
       tslib: ^2.0.0
@@ -38,12 +40,14 @@ importers:
       tslib: 2.0.0
     devDependencies:
       esm: 3.2.25
+      prettier: 2.0.5
       source-map-support: 0.5.19
       ts-node: 8.10.2_typescript@3.9.7
       typescript: 3.9.7
     specifiers:
       axios: ^0.19.2
       esm: ^3.2.25
+      prettier: ^2.0.5
       source-map-support: ^0.5.19
       taler-wallet-core: 'workspace:*'
       ts-node: ^8.10.2
@@ -59,6 +63,7 @@ importers:
       '@rollup/plugin-node-resolve': 8.4.0_rollup@2.23.0
       '@rollup/plugin-replace': 2.3.3_rollup@2.23.0
       '@types/node': 14.0.27
+      prettier: 2.0.5
       rimraf: 3.0.2
       rollup: 2.23.0
       rollup-plugin-sourcemaps: 0.6.2_1bb4f16ce5b550396581a296af208cfa
@@ -70,6 +75,7 @@ importers:
       '@rollup/plugin-node-resolve': ^8.4.0
       '@rollup/plugin-replace': ^2.3.3
       '@types/node': ^14.0.27
+      prettier: ^2.0.5
       rimraf: ^3.0.2
       rollup: ^2.23.0
       rollup-plugin-sourcemaps: ^0.6.2
@@ -88,6 +94,7 @@ importers:
       '@rollup/plugin-node-resolve': 8.4.0_rollup@2.23.0
       '@rollup/plugin-replace': 2.3.3_rollup@2.23.0
       '@types/node': 14.0.27
+      prettier: 2.0.5
       rimraf: 3.0.2
       rollup: 2.23.0
       rollup-plugin-sourcemaps: 0.6.2_1bb4f16ce5b550396581a296af208cfa
@@ -100,6 +107,7 @@ importers:
       '@rollup/plugin-node-resolve': ^8.4.0
       '@rollup/plugin-replace': ^2.3.3
       '@types/node': ^14.0.27
+      prettier: ^2.0.5
       rimraf: ^3.0.2
       rollup: ^2.23.0
       rollup-plugin-sourcemaps: ^0.6.2

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