How to use @ethersproject/basex - 9 common examples
To help you get started, we’ve selected a few @ethersproject/basex examples, based on popular ways it is used in public projects.
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ethers-io / ethers.js / packages / hdnode / src.ts / index.ts View on Github 
static fromExtendedKey(extendedKey: string): HDNode {
const bytes = Base58.decode(extendedKey);
if (bytes.length !== 82 || base58check(bytes.slice(0, 78)) !== extendedKey) {
logger.throwArgumentError("invalid extended key", "extendedKey", "[REDACTED]");
}
const depth = bytes[4];
const parentFingerprint = hexlify(bytes.slice(5, 9));
const index = parseInt(hexlify(bytes.slice(9, 13)).substring(2), 16);
const chainCode = hexlify(bytes.slice(13, 45));
const key = bytes.slice(45, 78);
switch (hexlify(bytes.slice(0, 4))) {
// Public Key
case "0x0488b21e": case "0x043587cf":
return new HDNode(_constructorGuard, null, hexlify(key), parentFingerprint, chainCode, index, depth, null, null);static fromExtendedKey(extendedKey) {
const bytes = Base58.decode(extendedKey);
if (bytes.length !== 82 || base58check(bytes.slice(0, 78)) !== extendedKey) {
logger.throwArgumentError("invalid extended key", "extendedKey", "[REDACTED]");
}
const depth = bytes[4];
const parentFingerprint = hexlify(bytes.slice(5, 9));
const index = parseInt(hexlify(bytes.slice(9, 13)).substring(2), 16);
const chainCode = hexlify(bytes.slice(13, 45));
const key = bytes.slice(45, 78);
switch (hexlify(bytes.slice(0, 4))) {
// Public Key
case "0x0488b21e":
case "0x043587cf":
return new HDNode(_constructorGuard, null, hexlify(key), parentFingerprint, chainCode, index, depth, null, null);
// Private Key
case "0x0488ade4":
case "0x04358394 ":function base58check(data) {
return Base58.encode(concat([data, hexDataSlice(sha256(sha256(data)), 0, 4)]));
}
const _constructorGuard = {};let content = yield resolver.contenthash(nodehash).then((hash) => {
if (hash === "0x") {
return "";
}
if (hash.substring(0, 10) === "0xe3010170" && ethers.utils.isHexString(hash, 38)) {
return Base58.encode(ethers.utils.hexDataSlice(hash, 4)) + " (IPFS)";
}
return hash + " (unknown format)";
}, (error) => (""));
if (content) {function base58check(data: Uint8Array): string {
return Base58.encode(concat([ data, hexDataSlice(sha256(sha256(data)), 0, 4) ]));
}function base58check(data) {
return basex_1.Base58.encode(bytes_1.concat([data, bytes_1.hexDataSlice(sha2_1.sha256(sha2_1.sha256(data)), 0, 4)]));
}
var _constructorGuard = {};return [4 /*yield*/, resolver.contenthash(nodehash).then(function (hash) {
if (hash === "0x") {
return "";
}
if (hash.substring(0, 10) === "0xe3010170" && ethers_1.ethers.utils.isHexString(hash, 38)) {
return basex_1.Base58.encode(ethers_1.ethers.utils.hexDataSlice(hash, 4)) + " (IPFS)";
}
return hash + " (unknown format)";
}, function (error) { return (""); })];
case 15:return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!(key === "hash")) return [3 /*break*/, 2];
bytes = basex_1.Base58.decode(value);
if (bytes.length !== 34 || bytes[0] !== 18 || bytes[1] !== 32) {
this.throwError("Unsupported IPFS hash");
}
multihash = ethers_1.ethers.utils.concat(["0xe3010170", bytes]);
return [4 /*yield*/, _super.prototype._setValue.call(this, "multihash", ethers_1.ethers.utils.hexlify(multihash))];
case 1:
_a.sent();
_a.label = 2;
case 2: return [4 /*yield*/, _super.prototype._setValue.call(this, key, value)];
case 3:
_a.sent();
return [2 /*return*/];
}
});
});return __awaiter(this, void 0, void 0, function* () {
if (key === "hash") {
let bytes = Base58.decode(value);
if (bytes.length !== 34 || bytes[0] !== 18 || bytes[1] !== 32) {
this.throwError("Unsupported IPFS hash");
}
let multihash = ethers.utils.concat(["0xe3010170", bytes]);
yield _super._setValue.call(this, "multihash", ethers.utils.hexlify(multihash));
}
yield _super._setValue.call(this, key, value);
});
}
