@ledgerhq/hw-app-eth
Version:
Ledger Hardware Wallet Ethereum Application API
57 lines • 2.42 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.loadNftPlugin = exports.getNFTInfo = void 0;
const axios_1 = __importDefault(require("axios"));
const loadConfig_1 = require("./loadConfig");
const logs_1 = require("@ledgerhq/logs");
const getNFTInfo = async (contractAddress, chainId, userLoadConfig) => {
const { nftExplorerBaseURL } = (0, loadConfig_1.getLoadConfig)(userLoadConfig);
if (!nftExplorerBaseURL)
return;
const url = `${nftExplorerBaseURL}/${chainId}/contracts/${contractAddress}`;
const response = await axios_1.default
.get(url)
.then(r => r.data)
.catch(e => {
(0, logs_1.log)("error", "could not fetch from " + url + ": " + String(e));
return null;
});
if (!response)
return;
// APDU response specification: https://ledgerhq.atlassian.net/wiki/spaces/WALLETCO/pages/3269984297/NFT-1+NFT+Backend+design#NFT-Metadata-BLOB
const payload = response["payload"];
// Collection name length position: 3rd byte -> caracter 4 to 6
const collectionNameLength = parseInt(payload.slice(4, 6), 16);
const collectionNameHex = payload.substr(6, collectionNameLength * 2);
const collectionName = collectionNameHex
.match(/.{2}/g) // split every 2 characters
?.reduce((acc, curr) => (acc += String.fromCharCode(parseInt(curr, 16))), ""); // convert hex to string
return {
contractAddress,
collectionName: collectionName || "",
data: payload,
};
};
exports.getNFTInfo = getNFTInfo;
const loadNftPlugin = async (contractAddress, selector, chainId, userLoadConfig) => {
const { nftExplorerBaseURL } = (0, loadConfig_1.getLoadConfig)(userLoadConfig);
if (!nftExplorerBaseURL)
return;
const url = `${nftExplorerBaseURL}/${chainId}/contracts/${contractAddress}/plugin-selector/${selector}`;
const response = await axios_1.default
.get(url)
.then(r => r.data)
.catch(e => {
(0, logs_1.log)("error", "could not fetch from " + url + ": " + String(e));
return null;
});
if (!response)
return;
const payload = response["payload"];
return payload;
};
exports.loadNftPlugin = loadNftPlugin;
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