feat: sell feature

lib/rollup.config.ts

@@ -1,5 +1,6 @@
 import commonjs from "@rollup/plugin-commonjs";
 import typescript from "@rollup/plugin-typescript";
+import json from "@rollup/plugin-json";
 
 // eslint-disable-next-line import/no-anonymous-default-export
 export default {
@@ -13,5 +14,6 @@ export default {
  typescript({
  exclude: "**/*.test.ts",
  }),
+ json(),
  ],
 };

lib/src/sdk.ts

@@ -24,6 +24,7 @@ import walletApiDecorator, {
  getCustomModule,
 } from "./wallet-api";
 import { ExchangeModule } from "@ledgerhq/wallet-api-exchange-module";
+import { decodeSellPayload } from "@ledgerhq/hw-app-exchange";
 
 export type GetSwapPayload = typeof retrievePayload;
 /**
@@ -56,7 +57,7 @@ export type GetSellPayload = (
 ) => Promise<{
  recipientAddress: string;
  amount: BigNumber;
- binaryPayload: Buffer;
+ binaryPayload: string;
  signature: Buffer;
 }>;
 /**
@@ -215,33 +216,36 @@ export class ExchangeSDK {
  });
 
  // 3 - Send payload
- const transaction = await this.walletAPIDecorator.createTransaction({
- recipient: payinAddress,
- amount: fromAmountAtomic,
- currency: fromCurrency,
- customFeeConfig,
- payinExtraId,
- }).catch(async (error) => {
- await cancelSwap({
- provider: this.providerId,
- swapId: swapId ?? "",
- swapStep: getSwapStep(error),
- statusCode: error.name,
- errorMessage: error.message,
- sourceCurrencyId: fromAccount.currency,
- targetCurrencyId: toAccount.currency,
- hardwareWalletType: device?.modelId ?? "",
- swapType: quoteId ? "fixed" : "float",
- }).catch(async (error: Error) => {
- const err = new CancelStepError(error);
- this.handleError(err);
- this.logger.error(err);
+ const transaction = await this.walletAPIDecorator
+ .createTransaction({
+ recipient: payinAddress,
+ amount: fromAmountAtomic,
+ currency: fromCurrency,
+ customFeeConfig,
+ payinExtraId,
+ })
+ .catch(async (error) => {
+ await cancelSwap({
+ provider: this.providerId,
+ swapId: swapId ?? "",
+ swapStep: getSwapStep(error),
+ statusCode: error.name,
+ errorMessage: error.message,
+ sourceCurrencyId: fromAccount.currency,
+ targetCurrencyId: toAccount.currency,
+ hardwareWalletType: device?.modelId ?? "",
+ swapType: quoteId ? "fixed" : "float",
+ }).catch(async (error: Error) => {
+ const err = new CancelStepError(error);
+ this.handleError(err);
+ this.logger.error(err);
+ throw error;
+ });
+
+ this.handleError(error);
+ this.logger.error(error);
  throw error;
  });
- this.handleError(error);
- this.logger.error(error);
- throw error;
- });
 
  const tx = await this.exchangeModule
  .completeSwap({
@@ -354,6 +358,13 @@ export class ExchangeSDK {
  throw error;
  });
 
+ // Decode the payload in order to send the values to the back-end
+ try {
+ const decodedPayload = await decodeSellPayload(binaryPayload);
+ } catch (e) {
+ this.logger.log("Error decoding payload", e);
+ }
+
  // Check enough fund on the amount being set on the sell payload
  const fromAmountAtomic = convertToAtomicUnit(amount, currency);
  canSpendAmount(account, fromAmountAtomic, this.logger);
@@ -382,7 +393,7 @@ export class ExchangeSDK {
  provider: this.providerId,
  fromAccountId: accountId,
  transaction,
- binaryPayload,
+ binaryPayload: Buffer.from(binaryPayload),
  signature,
  feeStrategy,
  })
@@ -414,11 +425,7 @@ function canSpendAmount(
  amount: BigNumber,
  logger: Logger
 ): void {
- if (
- account.spendableBalance.isGreaterThanOrEqualTo(
- amount
- ) === false
- ) {
+ if (account.spendableBalance.isGreaterThanOrEqualTo(amount) === false) {
  const err = new NotEnoughFunds();
  logger.error(err);
  throw err;

lib/tsconfig.json

@@ -9,7 +9,8 @@
  "declarationDir": "./dist/types",
  "removeComments": false,
  "noEmitOnError": true,
- "esModuleInterop": false,
+ "esModuleInterop": true,
+ "resolveJsonModule": true,
  },
  "include": ["src"]
 }

package.json

@@ -15,7 +15,11 @@
  "lint": "turbo lint",
  "test": "pnpm --filter=exchange-sdk test"
  },
+ "dependencies": {
+ "@ledgerhq/hw-app-exchange": "0.6.0-nightly.0"
+ },
  "devDependencies": {
+ "@rollup/plugin-json": "^6.1.0",
  "@types/node": "^12.12.21",
  "@types/react": "^17.0.2",
  "@types/react-dom": "^17.0.1",
@@ -30,4 +34,4 @@
  "pnpm": ">=9.4"
  },
  "packageManager": "pnpm@9.4.0"
-}
+}