Typescript SDK for Endless

$3

1. For SDK documentation, check out the TypeScript SDK documentation
2. For in-depth examples, check out the examples folder with ready-made package.json files to get you going quickly!

The Endless TypeScript SDK provides a convenient way to interact with the Endless blockchain using TypeScript. It offers a set of utility functions, classes, and types to simplify the integration process and enhance developer productivity.

Installation

##### For use in Node.js or a web application

Install with your favorite package manager such as npm, yarn, or pnpm:

``bash
pnpm install @endlesslab/endless-ts-sdk
`


Usage

Initialize Endless to access the SDK API.

`ts
// initiate the main entry point into Endless SDK
const endless = new Endless();
`

If you want to pass in a custom config

`ts
// an optional config information for the SDK client instance.
const config = new EndlessConfig({
network: Network.LOCAL,
// If it is a mini program environment, set miniprogram to true
// miniprogram: true
}); // default network is devnet
const endless = new Endless(config);
`

$3

> Note: We introduce a Single Sender authentication. Generating an account defaults to Legacy Ed25519 authentication with the option to use the Single Sender unified authentication

#### Generate new keys

`ts
const account = Account.generate(); // defaults to Legacy Ed25519
`

#### Derive from private key

`ts
// Create a private key instance for Ed25519 scheme
const privateKey = new Ed25519PrivateKey("myEd25519privatekeystring");

// Derive an account from private key

// This is used as a local calculation and therefore is used to instantiate an Account
// that has not had its authentication key rotated
const account = await Account.fromPrivateKey({ privateKey });
`

#### Derive from private key and address

`ts
// Create a private key instance for Ed25519 scheme
const privateKey = new Ed25519PrivateKey("myEd25519privatekeystring");
`

#### Derive from path

`ts
const path = "m/44'/637'/0'/0'/1";
const mnemonic = "various float stumble...";
const account = Account.fromDerivationPath({ path, mnemonic });
`

$3

---

#### Single Signer transaction

Using transaction submission api

`ts
const alice: Account = Account.generate();
const bobAddress = "0xb0b";
// build transaction
const transaction = await endless.transaction.build.simple({
sender: alice.accountAddress,
data: {
function: "0x1::coin::transfer",
typeArguments: ["0x1::endless_coin::EndlessCoin"],
functionArguments: [bobAddress, 100],
},
});

// using sign and submit separately
const senderAuthenticator = endless.transaction.sign({ signer: alice, transaction });
const committedTransaction = await endless.transaction.submit.simple({ transaction, senderAuthenticator });

// using signAndSubmit combined
const committedTransaction = await endless.signAndSubmitTransaction({ signer: alice, transaction });
`

Using built in transferCoinTransaction

`ts
const alice: Account = Account.generate();
const bobAddress = "0xb0b";
// build transaction
const transaction = await endless.transferCoinTransaction({
sender: alice,
recipient: bobAddress,
amount: 100,
});

const pendingTransaction = await endless.signAndSubmitTransaction({ signer: alice, transaction });
`

Troubleshooting

If you see import error when you do this

`typescript
import { Endless, EndlessConfig, Network } from "@endlesslab/endless-ts-sdk";
`

It could be your tsconfig.json is not incompatible, make sure your moduleResolution is set to node instead of bundler`.