12 files changed, 465 insertions, 95 deletions

diff --git a/packages/idb-bridge/src/BridgeIDBCursor.ts b/packages/idb-bridge/src/BridgeIDBCursor.ts
index c12c8c333..ebf71da0d 100644
--- a/packages/idb-bridge/src/BridgeIDBCursor.ts
+++ b/packages/idb-bridge/src/BridgeIDBCursor.ts
@@ -22,12 +22,10 @@ import BridgeIDBRequest from "./BridgeIDBRequest";
 import compareKeys from "./util/cmp";
 import {
   DataError,
-  InvalidAccessError,
   InvalidStateError,
   ReadOnlyError,
   TransactionInactiveError,
 } from "./util/errors";
-import extractKey from "./util/extractKey";
 import structuredClone from "./util/structuredClone";
 import {
   CursorRange,
@@ -41,7 +39,6 @@ import {
   RecordGetRequest,
   ResultLevel,
   Backend,
-  DatabaseTransaction,
   RecordStoreRequest,
   StoreLevel,
 } from "./backend-interface";
diff --git a/packages/idb-bridge/src/BridgeIDBObjectStore.ts b/packages/idb-bridge/src/BridgeIDBObjectStore.ts
index 22bcc32f8..bb84b4454 100644
--- a/packages/idb-bridge/src/BridgeIDBObjectStore.ts
+++ b/packages/idb-bridge/src/BridgeIDBObjectStore.ts
@@ -24,16 +24,11 @@ import BridgeIDBTransaction from "./BridgeIDBTransaction";
 
 import {
   ConstraintError,
-  DataError,
   InvalidAccessError,
   InvalidStateError,
-  NotFoundError,
   ReadOnlyError,
-  TransactionInactiveError,
 } from "./util/errors";
-import extractKey from "./util/extractKey";
 import fakeDOMStringList from "./util/fakeDOMStringList";
-import structuredClone from "./util/structuredClone";
 import {
   FakeDOMStringList,
   BridgeIDBCursorDirection,
diff --git a/rollup.config.js b/rollup.config.js
index ed99218ed..cfe0a4b8a 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -4,28 +4,27 @@ import nodeResolve from 'rollup-plugin-node-resolve';
 import json from '@rollup/plugin-json';
 import builtins from 'builtin-modules'
 
-
 const walletCli = {
   input: 'dist/node/headless/taler-wallet-cli.js',
   output: {
     file: 'dist/standalone/taler-wallet-cli.js',
     format: 'cjs'
   },
+  external: builtins,
   plugins: [
-    json(),
-
     nodeResolve({
-      external: builtins,
-      preferBuiltins: true
+      preferBuiltins: true,
     }),
-
     commonjs({
       include: ['node_modules/**', 'dist/node/**'],
       extensions: [ '.js' ],
       ignoreGlobal: false,  // Default: false
       sourceMap: false,
       ignore: [ 'taler-wallet' ]
-    })
+    }),
+
+    json(),
+
   ]
 };
 
@@ -36,11 +35,11 @@ const walletAndroid = {
     format: 'cjs',
     exports: 'named',
   },
+  external: builtins,
   plugins: [
     json(),
 
     nodeResolve({
-      external: builtins,
       preferBuiltins: true
     }),
 
diff --git a/src/operations/exchanges.ts b/src/operations/exchanges.ts
index 871ee1138..d9adc7c52 100644
--- a/src/operations/exchanges.ts
+++ b/src/operations/exchanges.ts
@@ -15,7 +15,6 @@
  */
 
 import { InternalWalletState } from "./state";
-import { WALLET_CACHE_BREAKER_CLIENT_VERSION } from "../wallet";
 import { KeysJson, Denomination, ExchangeWireJson } from "../types/talerTypes";
 import { getTimestampNow, OperationError } from "../types/walletTypes";
 import {
@@ -40,6 +39,7 @@ import {
   OperationFailedAndReportedError,
   guardOperationException,
 } from "./errors";
+import { WALLET_CACHE_BREAKER_CLIENT_VERSION } from "./versions";
 
 async function denominationRecordFromKeys(
   ws: InternalWalletState,
diff --git a/src/operations/reserves.ts b/src/operations/reserves.ts
index 7b0a6886e..649bf75f2 100644
--- a/src/operations/reserves.ts
+++ b/src/operations/reserves.ts
@@ -20,6 +20,7 @@ import {
   getTimestampNow,
   ConfirmReserveRequest,
   OperationError,
+  AcceptWithdrawalResponse,
 } from "../types/walletTypes";
 import { canonicalizeBaseUrl } from "../util/helpers";
 import { InternalWalletState } from "./state";
@@ -38,7 +39,7 @@ import {
 } from "../util/query";
 import { Logger } from "../util/logging";
 import * as Amounts from "../util/amounts";
-import { updateExchangeFromUrl, getExchangeTrust } from "./exchanges";
+import { updateExchangeFromUrl, getExchangeTrust, getExchangePaytoUri } from "./exchanges";
 import { WithdrawOperationStatusResponse } from "../types/talerTypes";
 import { assertUnreachable } from "../util/assertUnreachable";
 import { encodeCrock, getRandomBytes } from "../crypto/talerCrypto";
@@ -46,6 +47,7 @@ import { randomBytes } from "../crypto/primitives/nacl-fast";
 import {
   getVerifiedWithdrawDenomList,
   processWithdrawSession,
+  getBankWithdrawalInfo,
 } from "./withdraw";
 import { guardOperationException, OperationFailedAndReportedError } from "./errors";
 import { NotificationType } from "../types/notifications";
@@ -652,3 +654,33 @@ async function depleteReserve(
     console.trace("withdraw session already existed");
   }
 }
+
+
+
+export async function createTalerWithdrawReserve(
+  ws: InternalWalletState,
+  talerWithdrawUri: string,
+  selectedExchange: string,
+): Promise<AcceptWithdrawalResponse> {
+  const withdrawInfo = await getBankWithdrawalInfo(ws, talerWithdrawUri);
+  const exchangeWire = await getExchangePaytoUri(
+    ws,
+    selectedExchange,
+    withdrawInfo.wireTypes,
+  );
+  const reserve = await createReserve(ws, {
+    amount: withdrawInfo.amount,
+    bankWithdrawStatusUrl: withdrawInfo.extractedStatusUrl,
+    exchange: selectedExchange,
+    senderWire: withdrawInfo.senderWire,
+    exchangeWire: exchangeWire,
+  });
+  // We do this here, as the reserve should be registered before we return,
+  // so that we can redirect the user to the bank's status page.
+  await processReserveBankStatus(ws, reserve.reservePub);
+  console.log("acceptWithdrawal: returning");
+  return {
+    reservePub: reserve.reservePub,
+    confirmTransferUrl: withdrawInfo.confirmTransferUrl,
+  };
+}
\ No newline at end of file
diff --git a/src/operations/tip.ts b/src/operations/tip.ts
index df4b7990e..76d0df22d 100644
--- a/src/operations/tip.ts
+++ b/src/operations/tip.ts
@@ -1,6 +1,6 @@
 /*
  This file is part of GNU Taler
- (C) 2019 GNUnet e.V.
+ (C) 2019 Taler Systems S.A.
 
  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
@@ -14,24 +14,41 @@
  GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
  */
 
- 
 import { InternalWalletState } from "./state";
 import { parseTipUri } from "../util/taleruri";
-import { TipStatus, getTimestampNow, OperationError } from "../types/walletTypes";
-import { TipPickupGetResponse, TipPlanchetDetail, TipResponse } from "../types/talerTypes";
+import {
+  TipStatus,
+  getTimestampNow,
+  OperationError,
+} from "../types/walletTypes";
+import {
+  TipPickupGetResponse,
+  TipPlanchetDetail,
+  TipResponse,
+} from "../types/talerTypes";
 import * as Amounts from "../util/amounts";
-import { Stores, PlanchetRecord, WithdrawalSessionRecord, initRetryInfo, updateRetryInfoTimeout } from "../types/dbTypes";
-import { getExchangeWithdrawalInfo, getVerifiedWithdrawDenomList, processWithdrawSession } from "./withdraw";
+import {
+  Stores,
+  PlanchetRecord,
+  WithdrawalSessionRecord,
+  initRetryInfo,
+  updateRetryInfoTimeout,
+} from "../types/dbTypes";
+import {
+  getExchangeWithdrawalInfo,
+  getVerifiedWithdrawDenomList,
+  processWithdrawSession,
+} from "./withdraw";
 import { getTalerStampSec, extractTalerStampOrThrow } from "../util/helpers";
 import { updateExchangeFromUrl } from "./exchanges";
 import { getRandomBytes, encodeCrock } from "../crypto/talerCrypto";
 import { guardOperationException } from "./errors";
 import { NotificationType } from "../types/notifications";
 
-
 export async function getTipStatus(
   ws: InternalWalletState,
-  talerTipUri: string): Promise<TipStatus> {
+  talerTipUri: string,
+): Promise<TipStatus> {
   const res = parseTipUri(talerTipUri);
   if (!res) {
     throw Error("invalid taler://tip URI");
@@ -134,19 +151,22 @@ export async function processTip(
   forceNow: boolean = false,
 ): Promise<void> {
   const onOpErr = (e: OperationError) => incrementTipRetry(ws, tipId, e);
-  await guardOperationException(() => processTipImpl(ws, tipId, forceNow), onOpErr);
+  await guardOperationException(
+    () => processTipImpl(ws, tipId, forceNow),
+    onOpErr,
+  );
 }
 
 async function resetTipRetry(
   ws: InternalWalletState,
   tipId: string,
 ): Promise<void> {
-  await ws.db.mutate(Stores.tips, tipId, (x) => {
+  await ws.db.mutate(Stores.tips, tipId, x => {
     if (x.retryInfo.active) {
       x.retryInfo = initRetryInfo();
     }
     return x;
-  })
+  });
 }
 
 async function processTipImpl(
@@ -248,7 +268,7 @@ async function processTipImpl(
   const withdrawalSessionId = encodeCrock(getRandomBytes(32));
 
   const withdrawalSession: WithdrawalSessionRecord = {
-    denoms: planchets.map((x) => x.denomPub),
+    denoms: planchets.map(x => x.denomPub),
     exchangeBaseUrl: tipRecord.exchangeUrl,
     planchets: planchets,
     source: {
@@ -258,29 +278,31 @@ async function processTipImpl(
     timestampStart: getTimestampNow(),
     withdrawSessionId: withdrawalSessionId,
     rawWithdrawalAmount: tipRecord.amount,
-    withdrawn: planchets.map((x) => false),
-    totalCoinValue: Amounts.sum(planchets.map((p) => p.coinValue)).amount,
+    withdrawn: planchets.map(x => false),
+    totalCoinValue: Amounts.sum(planchets.map(p => p.coinValue)).amount,
     lastErrorPerCoin: {},
     retryInfo: initRetryInfo(),
     timestampFinish: undefined,
     lastError: undefined,
   };
 
+  await ws.db.runWithWriteTransaction(
+    [Stores.tips, Stores.withdrawalSession],
+    async tx => {
+      const tr = await tx.get(Stores.tips, tipId);
+      if (!tr) {
+        return;
+      }
+      if (tr.pickedUp) {
+        return;
+      }
+      tr.pickedUp = true;
+      tr.retryInfo = initRetryInfo(false);
 
-  await ws.db.runWithWriteTransaction([Stores.tips, Stores.withdrawalSession], async (tx) => {
-    const tr = await tx.get(Stores.tips, tipId);
-    if (!tr) {
-      return;
-    }
-    if (tr.pickedUp) {
-      return;
-    }
-    tr.pickedUp = true;
-    tr.retryInfo = initRetryInfo(false);
-
-    await tx.put(Stores.tips, tr);
-    await tx.put(Stores.withdrawalSession, withdrawalSession);
-  });
+      await tx.put(Stores.tips, tr);
+      await tx.put(Stores.withdrawalSession, withdrawalSession);
+    },
+  );
 
   await processWithdrawSession(ws, withdrawalSessionId);
 
diff --git a/src/operations/versions.ts b/src/operations/versions.ts
new file mode 100644
index 000000000..393bdd887
--- /dev/null
+++ b/src/operations/versions.ts
@@ -0,0 +1,32 @@
+/*
+ This file is part of GNU Taler
+ (C) 2019 Taler Systems S.A.
+
+ 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/>
+ */
+
+/**
+ * Wallet protocol version spoken with the exchange
+ * and merchant.
+ *
+ * Uses libtool's current:revision:age versioning.
+ */
+export const WALLET_EXCHANGE_PROTOCOL_VERSION = "6";
+
+/**
+ * Cache breaker that is appended to queries such as /keys and /wire
+ * to break through caching, if it has been accidentally/badly configured
+ * by the exchange.
+ * 
+ * This is only a temporary measure. 
+ */
+export const WALLET_CACHE_BREAKER_CLIENT_VERSION = "3";
\ No newline at end of file
diff --git a/src/operations/withdraw.ts b/src/operations/withdraw.ts
index 6e7cdf512..38baffa8d 100644
--- a/src/operations/withdraw.ts
+++ b/src/operations/withdraw.ts
@@ -39,15 +39,10 @@ import { InternalWalletState } from "./state";
 import { parseWithdrawUri } from "../util/taleruri";
 import { Logger } from "../util/logging";
 import {
-  Database
-} from "../util/query";
-import {
   updateExchangeFromUrl,
-  getExchangePaytoUri,
   getExchangeTrust,
 } from "./exchanges";
-import { createReserve, processReserveBankStatus } from "./reserves";
-import { WALLET_PROTOCOL_VERSION } from "../wallet";
+import { WALLET_EXCHANGE_PROTOCOL_VERSION } from "./versions";
 
 import * as LibtoolVersion from "../util/libtoolVersion";
 import { guardOperationException } from "./errors";
@@ -103,7 +98,7 @@ export function getWithdrawDenomList(
  * Get information about a withdrawal from
  * a taler://withdraw URI by asking the bank.
  */
-async function getBankWithdrawalInfo(
+export async function getBankWithdrawalInfo(
   ws: InternalWalletState,
   talerWithdrawUri: string,
 ): Promise<BankWithdrawDetails> {
@@ -130,33 +125,6 @@ async function getBankWithdrawalInfo(
   };
 }
 
-export async function acceptWithdrawal(
-  ws: InternalWalletState,
-  talerWithdrawUri: string,
-  selectedExchange: string,
-): Promise<AcceptWithdrawalResponse> {
-  const withdrawInfo = await getBankWithdrawalInfo(ws, talerWithdrawUri);
-  const exchangeWire = await getExchangePaytoUri(
-    ws,
-    selectedExchange,
-    withdrawInfo.wireTypes,
-  );
-  const reserve = await createReserve(ws, {
-    amount: withdrawInfo.amount,
-    bankWithdrawStatusUrl: withdrawInfo.extractedStatusUrl,
-    exchange: selectedExchange,
-    senderWire: withdrawInfo.senderWire,
-    exchangeWire: exchangeWire,
-  });
-  // We do this here, as the reserve should be registered before we return,
-  // so that we can redirect the user to the bank's status page.
-  await processReserveBankStatus(ws, reserve.reservePub);
-  console.log("acceptWithdrawal: returning");
-  return {
-    reservePub: reserve.reservePub,
-    confirmTransferUrl: withdrawInfo.confirmTransferUrl,
-  };
-}
 
 async function getPossibleDenoms(
   ws: InternalWalletState,
@@ -619,7 +587,7 @@ export async function getExchangeWithdrawalInfo(
   let versionMatch;
   if (exchangeDetails.protocolVersion) {
     versionMatch = LibtoolVersion.compare(
-      WALLET_PROTOCOL_VERSION,
+      WALLET_EXCHANGE_PROTOCOL_VERSION,
       exchangeDetails.protocolVersion,
     );
 
@@ -629,7 +597,7 @@ export async function getExchangeWithdrawalInfo(
       versionMatch.currentCmp === -1
     ) {
       console.warn(
-        `wallet version ${WALLET_PROTOCOL_VERSION} might be outdated ` +
+        `wallet's support for exchange protocol version ${WALLET_EXCHANGE_PROTOCOL_VERSION} might be outdated ` +
           `(exchange has ${exchangeDetails.protocolVersion}), checking for updates`,
       );
     }
@@ -655,7 +623,7 @@ export async function getExchangeWithdrawalInfo(
     selectedDenoms,
     trustedAuditorPubs,
     versionMatch,
-    walletVersion: WALLET_PROTOCOL_VERSION,
+    walletVersion: WALLET_EXCHANGE_PROTOCOL_VERSION,
     wireFees: exchangeWireInfo,
     withdrawFee: acc,
     termsOfServiceAccepted: tosAccepted,
diff --git a/src/types/ReserveStatus.ts b/src/types/ReserveStatus.ts
new file mode 100644
index 000000000..d9b5d9496
--- /dev/null
+++ b/src/types/ReserveStatus.ts
@@ -0,0 +1,61 @@
+/*
+ This file is part of GNU Taler
+ (C) 2019 Taler Systems S.A.
+
+ 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/>
+ */
+
+/**
+ * @author Florian Dold <dold@taler.net>
+ */
+
+/**
+ * Imports.
+ */
+import {
+  codecForString,
+  typecheckedCodec,
+  makeCodecForObject,
+  makeCodecForConstString,
+  makeCodecForUnion,
+  makeCodecForList,
+} from "../util/codec";
+import { runBlock } from "../util/helpers";
+import { AmountString } from "./talerTypes";
+import { ReserveTransaction, codecForReserveTransaction } from "./ReserveTransaction";
+
+
+/**
+ * Status of a reserve.
+ * 
+ * Schema type for the exchange's response to "/reserve/status".
+ */
+export interface ReserveStatus {
+  /**
+   * Balance left in the reserve.
+   */
+  balance: AmountString;
+
+  /**
+   * Transaction history for the reserve.
+   */
+  history: ReserveTransaction[];
+}
+
+export const codecForReserveStatus = runBlock(() => (
+  typecheckedCodec<ReserveStatus>(
+    makeCodecForObject<ReserveStatus>()
+      .property("balance", codecForString)
+      .property("history", makeCodecForList(codecForReserveTransaction))
+      .build("ReserveStatus")
+  )
+));
\ No newline at end of file
diff --git a/src/types/ReserveTransaction.ts b/src/types/ReserveTransaction.ts
new file mode 100644
index 000000000..2ec859498
--- /dev/null
+++ b/src/types/ReserveTransaction.ts
@@ -0,0 +1,273 @@
+/*
+ This file is part of GNU Taler
+ (C) 2019 Taler Systems S.A.
+
+ 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/>
+ */
+
+/**
+ * @author Florian Dold <dold@taler.net>
+ */
+
+/**
+ * Imports.
+ */
+import {
+  codecForString,
+  typecheckedCodec,
+  makeCodecForObject,
+  makeCodecForConstString,
+  makeCodecForUnion,
+} from "../util/codec";
+import { runBlock } from "../util/helpers";
+import {
+  AmountString,
+  Base32String,
+  EddsaSignatureString,
+  TimestampString,
+  EddsaPublicKeyString,
+  CoinPublicKeyString,
+} from "./talerTypes";
+
+export const enum ReserveTransactionType {
+  Withdraw = "WITHDRAW",
+  Deposit = "DEPOSIT",
+  Payback = "PAYBACK",
+  Closing = "CLOSING",
+}
+
+export interface ReserveWithdrawTransaction {
+  type: ReserveTransactionType.Withdraw;
+
+  /**
+   * Amount withdrawn.
+   */
+  amount: AmountString;
+
+  /**
+   * Hash of the denomination public key of the coin.
+   */
+  h_denom_pub: Base32String;
+
+  /**
+   * Hash of the blinded coin to be signed
+   */
+  h_coin_envelope: Base32String;
+
+  /**
+   * Signature of 'TALER_WithdrawRequestPS' created with the reserves's
+   * private key.
+   */
+  reserve_sig: EddsaSignatureString;
+
+  /**
+   * Fee that is charged for withdraw.
+   */
+  withdraw_fee: AmountString;
+}
+
+export interface ReserveDepositTransaction {
+  type: ReserveTransactionType.Deposit;
+
+  /**
+   * Amount withdrawn.
+   */
+  amount: AmountString;
+
+  /**
+   * Sender account payto://-URL
+   */
+  sender_account_url: string;
+
+  /**
+   * Transfer details uniquely identifying the transfer.
+   */
+  wire_reference: string;
+
+  /**
+   * Timestamp of the incoming wire transfer.
+   */
+  timestamp: TimestampString;
+}
+
+export interface ReserveClosingTransaction {
+  type: ReserveTransactionType.Closing;
+
+  /**
+   * Closing balance.
+   */
+  amount: AmountString;
+
+  /**
+   * Closing fee charged by the exchange.
+   */
+  closing_fee: AmountString;
+
+  /**
+   * Wire transfer subject.
+   */
+  wtid: string;
+
+  /**
+   * Hash of the wire account into which the funds were returned to.
+   */
+  h_wire: string;
+
+  /**
+   * This is a signature over a
+   * struct TALER_ReserveCloseConfirmationPS with purpose
+   * TALER_SIGNATURE_EXCHANGE_RESERVE_CLOSED.
+   */
+  exchange_sig: EddsaSignatureString;
+
+  /**
+   * Public key used to create exchange_sig.
+   */
+  exchange_pub: EddsaPublicKeyString;
+
+  /**
+   * Time when the reserve was closed.
+   */
+  timestamp: TimestampString;
+}
+
+export interface ReservePaybackTransaction {
+  type: ReserveTransactionType.Payback;
+
+  /**
+   * Amount paid back.
+   */
+  amount: AmountString;
+
+  /**
+   * Receiver account details.
+   */
+  receiver_account_details: any;
+
+  /**
+   * Wire transfer identifier.
+   */
+  wire_transfer: any;
+
+  /**
+   * This is a signature over
+   * a struct TALER_PaybackConfirmationPS with purpose
+   *  TALER_SIGNATURE_EXCHANGE_CONFIRM_PAYBACK.
+   */
+  exchange_sig: EddsaSignatureString;
+
+  /**
+   * Public key used to create exchange_sig.
+   */
+  exchange_pub: EddsaPublicKeyString;
+
+  /**
+   * Time when the funds were paid back into the reserve.
+   */
+  timestamp: TimestampString;
+
+  /**
+   * Public key of the coin that was paid back.
+   */
+  coin_pub: CoinPublicKeyString;
+}
+
+/**
+ * Format of the exchange's transaction history for a reserve.
+ */
+export type ReserveTransaction =
+  | ReserveWithdrawTransaction
+  | ReserveDepositTransaction
+  | ReserveClosingTransaction
+  | ReservePaybackTransaction;
+
+export const codecForReserveWithdrawTransaction = runBlock(() =>
+  typecheckedCodec<ReserveWithdrawTransaction>(
+    makeCodecForObject<ReserveWithdrawTransaction>()
+      .property("amount", codecForString)
+      .property("h_coin_envelope", codecForString)
+      .property("h_denom_pub", codecForString)
+      .property("reserve_sig", codecForString)
+      .property(
+        "type",
+        makeCodecForConstString(ReserveTransactionType.Withdraw),
+      )
+      .property("withdraw_fee", codecForString)
+      .build("ReserveWithdrawTransaction"),
+  ),
+);
+
+export const codecForReserveDepositTransaction = runBlock(() =>
+  typecheckedCodec<ReserveDepositTransaction>(
+    makeCodecForObject<ReserveDepositTransaction>()
+      .property("amount", codecForString)
+      .property("sender_account_url", codecForString)
+      .property("timestamp", codecForString)
+      .property("wire_reference", codecForString)
+      .property("type", makeCodecForConstString(ReserveTransactionType.Deposit))
+      .build("ReserveDepositTransaction"),
+  ),
+);
+
+export const codecForReserveClosingTransaction = runBlock(() =>
+  typecheckedCodec<ReserveClosingTransaction>(
+    makeCodecForObject<ReserveClosingTransaction>()
+      .property("amount", codecForString)
+      .property("closing_fee", codecForString)
+      .property("exchange_pub", codecForString)
+      .property("exchange_sig", codecForString)
+      .property("h_wire", codecForString)
+      .property("timestamp", codecForString)
+      .property("type", makeCodecForConstString(ReserveTransactionType.Closing))
+      .property("wtid", codecForString)
+      .build("ReserveClosingTransaction"),
+  ),
+);
+
+export const codecForReservePaybackTransaction = runBlock(() =>
+  typecheckedCodec<ReservePaybackTransaction>(
+    makeCodecForObject<ReservePaybackTransaction>()
+      .property("amount", codecForString)
+      .property("coin_pub", codecForString)
+      .property("exchange_pub", codecForString)
+      .property("exchange_sig", codecForString)
+      .property("receiver_account_details", codecForString)
+      .property("timestamp", codecForString)
+      .property("type", makeCodecForConstString(ReserveTransactionType.Payback))
+      .property("wire_transfer", codecForString)
+      .build("ReservePaybackTransaction"),
+  ),
+);
+
+export const codecForReserveTransaction = runBlock(() =>
+  typecheckedCodec<ReserveTransaction>(
+    makeCodecForUnion<ReserveTransaction>()
+      .discriminateOn("type")
+      .alternative(
+        ReserveTransactionType.Withdraw,
+        codecForReserveWithdrawTransaction,
+      )
+      .alternative(
+        ReserveTransactionType.Closing,
+        codecForReserveClosingTransaction,
+      )
+      .alternative(
+        ReserveTransactionType.Payback,
+        codecForReservePaybackTransaction,
+      )
+      .alternative(
+        ReserveTransactionType.Deposit,
+        codecForReserveDepositTransaction,
+      )
+      .build<ReserveTransaction>("ReserveTransaction"),
+  ),
+);
diff --git a/src/wallet.ts b/src/wallet.ts
index 8decbc00a..1ea8c2fd2 100644
--- a/src/wallet.ts
+++ b/src/wallet.ts
@@ -30,7 +30,6 @@ import { AmountJson } from "./util/amounts";
 import * as Amounts from "./util/amounts";
 
 import {
-  acceptWithdrawal,
   getWithdrawDetailsForUri,
   getExchangeWithdrawalInfo,
 } from "./operations/withdraw";
@@ -82,7 +81,7 @@ import {
   getExchangePaytoUri,
   acceptExchangeTermsOfService,
 } from "./operations/exchanges";
-import { processReserve } from "./operations/reserves";
+import { processReserve, createTalerWithdrawReserve } from "./operations/reserves";
 
 import { InternalWalletState } from "./operations/state";
 import { createReserve, confirmReserve } from "./operations/reserves";
@@ -111,15 +110,6 @@ import {
   applyRefund,
 } from "./operations/refund";
 
-/**
- * Wallet protocol version spoken with the exchange
- * and merchant.
- *
- * Uses libtool's current:revision:age versioning.
- */
-export const WALLET_PROTOCOL_VERSION = "3:0:0";
-
-export const WALLET_CACHE_BREAKER_CLIENT_VERSION = "3";
 
 const builtinCurrencies: CurrencyRecord[] = [
   {
@@ -690,7 +680,7 @@ export class Wallet {
     selectedExchange: string,
   ): Promise<AcceptWithdrawalResponse> {
     try {
-      return acceptWithdrawal(this.ws, talerWithdrawUri, selectedExchange);
+      return createTalerWithdrawReserve(this.ws, talerWithdrawUri, selectedExchange);
     } finally {
       this.latch.trigger();
     }
diff --git a/tsconfig.json b/tsconfig.json
index ab2c42e1a..209721e7c 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -59,6 +59,7 @@
     "src/operations/return.ts",
     "src/operations/state.ts",
     "src/operations/tip.ts",
+    "src/operations/versions.ts",
     "src/operations/withdraw.ts",
     "src/types/ReserveStatus.ts",
     "src/types/ReserveTransaction.ts",