@ledgerhq/hw-app-eth
Version:
Ledger Hardware Wallet Ethereum Application API
59 lines • 2.83 kB
JavaScript
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
import axios from "axios";
import { getLoadConfig } from "./loadConfig";
import { log } from "@ledgerhq/logs";
export const getNFTInfo = (contractAddress, chainId, userLoadConfig) => __awaiter(void 0, void 0, void 0, function* () {
var _a;
const { nftExplorerBaseURL } = getLoadConfig(userLoadConfig);
if (!nftExplorerBaseURL)
return;
const url = `${nftExplorerBaseURL}/${chainId}/contracts/${contractAddress}`;
const response = yield axios
.get(url)
.then(r => r.data)
.catch(e => {
log("error", "could not fetch from " + url + ": " + String(e));
return null;
});
if (!response)
return;
// APDU response specification: https://ledgerhq.atlassian.net/wiki/spaces/WALLETCO/pages/3269984297/NFT-1+NFT+Backend+design#NFT-Metadata-BLOB
const payload = response["payload"];
// Collection name length position: 3rd byte -> caracter 4 to 6
const collectionNameLength = parseInt(payload.slice(4, 6), 16);
const collectionNameHex = payload.substr(6, collectionNameLength * 2);
const collectionName = (_a = collectionNameHex
.match(/.{2}/g) // split every 2 characters
) === null || _a === void 0 ? void 0 : _a.reduce((acc, curr) => (acc += String.fromCharCode(parseInt(curr, 16))), ""); // convert hex to string
return {
contractAddress: contractAddress,
collectionName: collectionName || "",
data: payload,
};
});
export const loadNftPlugin = (contractAddress, selector, chainId, userLoadConfig) => __awaiter(void 0, void 0, void 0, function* () {
const { nftExplorerBaseURL } = getLoadConfig(userLoadConfig);
if (!nftExplorerBaseURL)
return;
const url = `${nftExplorerBaseURL}/${chainId}/contracts/${contractAddress}/plugin-selector/${selector}`;
const response = yield axios
.get(url)
.then(r => r.data)
.catch(e => {
log("error", "could not fetch from " + url + ": " + String(e));
return null;
});
if (!response)
return;
const payload = response["payload"];
return payload;
});
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