@funded-labs/dab-js
Version:
JS adapter for DAB
70 lines (69 loc) • 3.1 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());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
const agent_1 = require("@dfinity/agent");
const principal_1 = require("@dfinity/principal");
const methods_1 = require("./methods");
const getMetadata = (actor) => __awaiter(void 0, void 0, void 0, function* () {
actor._balance;
const token = agent_1.Actor.canisterIdOf(actor).toText();
const extensions = yield actor._extensions();
if (!extensions.includes('@ext/common'))
throw new Error('The provided canister does not implement commont extension');
const metadataResult = yield actor._metadata(token);
if ('ok' in metadataResult)
return metadataResult.ok;
throw new Error(Object.keys(metadataResult.err)[0]);
});
const send = (actor, { to, from, amount }) => __awaiter(void 0, void 0, void 0, function* () {
const dummyMemmo = new Array(32).fill(0);
const token = agent_1.Actor.canisterIdOf(actor).toText();
const data = {
to: { principal: principal_1.Principal.fromText(to) },
from: { principal: principal_1.Principal.from(from) },
amount,
token,
memo: dummyMemmo,
notify: false,
subaccount: [],
fee: BigInt(0),
};
const transferResult = yield actor._transfer(data);
if ('ok' in transferResult)
return { amount: transferResult.ok.toString() };
throw new Error(Object.keys(transferResult.err)[0]);
});
const getBalance = (actor, user) => __awaiter(void 0, void 0, void 0, function* () {
const token = agent_1.Actor.canisterIdOf(actor).toText();
const balanceResult = yield actor._balance({
token,
user: { principal: user },
});
const decimals = yield getDecimals(actor);
if ('ok' in balanceResult)
return { value: balanceResult.ok.toString(), decimals };
throw new Error(Object.keys(balanceResult.err)[0]);
});
const burnXTC = (_actor, _params) => __awaiter(void 0, void 0, void 0, function* () {
throw new Error('BURN NOT SUPPORTED');
});
const approve = (_actor, _params) => __awaiter(void 0, void 0, void 0, function* () {
throw new Error('APPROVE NOT SUPPORTED');
});
const getDecimals = (actor) => __awaiter(void 0, void 0, void 0, function* () { return (0, methods_1.getDecimalsFromMetadata)(yield getMetadata(actor)); });
exports.default = {
send,
getMetadata,
getBalance,
burnXTC,
getDecimals,
approve,
};