ic0/lib/replica.js

An easy-to-use JavaScript API for the Internet Computer.

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.deferredReplica = exports.replica = void 0;
const agent_1 = require("@dfinity/agent");
const cross_fetch_1 = __importDefault(require("cross-fetch"));
const agentCanister_1 = require("./canister/agentCanister");
// Define an IC replica from the given hostname (e.g. `https://icp-api.io`)
const replica = (host, options = {}) => {
    let agent;
    if (!host) {
        agent = agent_1.HttpAgent.createSync({ fetch: cross_fetch_1.default });
    }
    else if (typeof host === 'string') {
        agent = agent_1.HttpAgent.createSync({ host, fetch: cross_fetch_1.default });
    }
    else if (host instanceof agent_1.HttpAgent) {
        agent = host;
    }
    else {
        throw new Error(`Invalid host (expected \`string\` or \`HttpAgent\`, received \`${typeof host}\`)`);
    }
    // Fetch root key for local replica
    if (options.local) {
        agent.fetchRootKey().catch((err) => {
            console.warn('Unable to fetch root key (check to ensure that your local replica is running)');
            console.error(err);
        });
    }
    return (id) => (0, agentCanister_1.agentCanister)(agent, id);
};
exports.replica = replica;
// Defer creating the agent for built-in replica values
const deferredReplica = (...args) => {
    let deferred;
    return (...replicaArgs) => {
        if (!deferred) {
            deferred = (0, exports.replica)(...args);
        }
        return deferred(...replicaArgs);
    };
};
exports.deferredReplica = deferredReplica;
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