import ic from 'ic0';

const ledger = ic('ryjl3-tyaaa-aaaaa-aaaba-cai'); // Ledger canister

console.log(await ledger.call('name')); // Call the `name()` method

import ic from 'ic0';

ic(canisterId).call(method, ...args); // IC mainnet

ic.local(canisterId).call(method, ...args); // Local replica

const backend = ic.local('rrkah-fqaaa-aaaaa-aaaaq-cai'); // Access a local canister

backend.call('myFunction', 123); // Call `myFunction(123)`

const ledger = ic('ryjl3-tyaaa-aaaaa-aaaba-cai'); // Principal for the IC ledger

console.log(await ledger.call('name')); // => { name: 'Internet Computer' }

import { replica, HttpAgent } from 'ic0';

const ic = replica(new HttpAgent({ ... })); // Use a custom agent from `@dfinity/agent`

const ledger = ic('ryjl3-tyaaa-aaaaa-aaaba-cai');

console.log(await ledger.call('name')); // => { name: 'Internet Computer' }

import { mockCanister } from 'ic0';

const mock = mockCanister({
    // Mock canister method named `echo()`
    async echo(x: number) {
        return x;
    }
});

console.log(await mock.call('echo', 123)); // => 123

import { mockCanister, replicaCanister } from 'ic0';

const ledger = replicaCanister(principal, agent);

const mockLedger = mockCanister({
    async echo(x: number) {
        return x;
    }
}, ledger); // Fall back to the deployed `ledger` canister

const mock = mockCanister({
    async runMock() {
        return this.call('echo', 456); // Call the mocked `echo()` function
    }
}, mockLedger); // Fall back to another mock canister

console.log(await mock.call('runMock')); // => 456