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Mesh
Open main menu
 * Get Started
    * Starter Templates
      Kick start your projects with our templates using CLI
    * Guides
      Step by step guides to build on Cardano
    * Migration / Manual Installation
      Install Mesh into your existing project

 * Wallet
    * App Wallet
      Wallet for building amazing applications
    * Browser Wallet
      Connect and perform wallet functions on Web3 dApps

 * Transaction
    * Send assets
      Transactions for sending assets
    * Interact with smart contracts
      Transactions to work with smart contracts
    * Minting and burning assets
      Using ForgeScript for minting and burning native assets
    * Staking and stake pool
      Transactions for delegating ADA and managing stakepools

 * React
    * Getting Started
      Everything you need to build web3 app on React
    * UI Components
      UI components to speed up your app development
    * Wallet Hooks
      Hooks for interacting with connected wallet

 * Utilities
    * Providers
      Services provided by the Cardano developer community
    * Resolvers
      Functions that you need while building dApps

 * About
    * About Mesh
      Information and common questions about Mesh
    * Implemented CIPs
      Mesh adhere to standards
    * Support Us
      Ways you can support us!


TOPICS

 * Generate wallet
 * Load wallet
 * Sign transactions
 * Sign data


APP WALLET

Wallet for building transactions in your applications.

Whether you are building a minting script, or an application that requires
multi-signature, AppWallet is all you need to get started.

In this section, you will learn how to initialize a wallet and use it to sign
transactions.


GENERATE WALLET

You can generate deterministic keys based on the Bitcoin BIP39. These mnemonic
phrases allow you to recover your wallet.

Once you have your mnemonic phrase, you can use it to generate your
deterministic keys. See Load AppWallet in the following section on loading a
mnemonic phrase. It will typically generate a series of private keys and
corresponding public keys, which you can use to manage your cryptocurrencies.

import { AppWallet } from '@meshsdk/core';

const mnemonic = AppWallet.brew();

Generate Mnemonic


LOAD APPWALLET

With Mesh, you can initialize a wallet with:

 * mnemonic phrases
 * Cardano CLI generated keys
 * private keys

Lets import a blockchain provider:

BlockfrostKoiosTangocrypto

import { BlockfrostProvider } from '@meshsdk/core';

const blockchainProvider = new BlockfrostProvider('<BLOCKFROST_API_KEY>');


MNEMONIC PHRASES

We can load wallet with mnemonic phrases:

import { AppWallet } from '@meshsdk/core';

const wallet = new AppWallet({
  networkId: 0,
  fetcher: blockchainProvider,
  submitter: blockchainProvider,
  key: {
    type: 'mnemonic',
    words: ["solution","solution","solution","solution","solution","solution","solution","solution","solution","solution","solution","solution","solution","solution","solution","solution","solution","solution","solution","solution","solution","solution","solution","solution"],
  },
});


With the wallet loaded, you can sign transactions, we will see how to do this in
the next section, for now lets get the wallet's address:

const address = wallet.getPaymentAddress();


CARDANO CLI GENERATED SKEYS

We can load wallet with CLI generated keys by providing the skey generated by
Cardano CLI. There are two files generated by Cardano CLI, by default it is
named signing.skey and stake.skey. Opening the signing.skey file it should
contains:

{
  "type": "PaymentSigningKeyShelley_ed25519",
  "description": "Payment Signing Key",
  "cborHex": "5820aaca553a7b95b38b5d9b82a5daa7a27ac8e34f3cf27152a978f4576520dd6503"
}

We can get the cborHex from the signing.skey file, and load wallet with Cardano
CLI generated skeys. Stake key is optional, but without it, you cannot sign
staking transactions.

import { AppWallet } from '@meshsdk/core';

const wallet = new AppWallet({
  networkId: 0,
  fetcher: blockchainProvider,
  submitter: blockchainProvider,
  key: {
    type: 'cli',
    payment: '5820aaca553a7b95b38b5d9b82a5daa7a27ac8e34f3cf27152a978f4576520dd6503',
    stake: '582097c458f19a3111c3b965220b1bef7d548fd75bc140a7f0a4f080e03cce604f0e',
  },
});



PRIVATE KEYS

We can load wallet with private keys:

import { AppWallet } from '@meshsdk/core';

const wallet = new AppWallet({
  networkId: 0,
  fetcher: blockchainProvider,
  submitter: blockchainProvider,
  key: {
    type: 'root',
    bech32: 'xprv1cqa46gk29plgkg98upclnjv5t425fcpl4rgf9mq2txdxuga7jfq5shk7np6l55nj00sl3m4syzna3uwgrwppdm0azgy9d8zahyf32s62klfyhe0ayyxkc7x92nv4s77fa0v25tufk9tnv7x6dgexe9kdz5gpeqgu',
  },
});


Mnemonic phrasesPrivate keyCLI keys

Load wallet with mnemonic phrases

Provide the mnemonic phrases to recover your wallet. After initializing the
AppWallet, we will get the wallet's payment address.

Note: Mesh Playground is safe if you really want to recover your Mainnet wallet,
but recovering your testing wallet on Mesh Playground is recommended.

Mnemonic phrases[ "solution", "solution", "solution", "solution", "solution",
"solution", "solution", "solution", "solution", "solution", "solution",
"solution", "solution", "solution", "solution", "solution", "solution",
"solution", "solution", "solution", "solution", "solution", "solution",
"solution" ]Network

Load wallet and get address


CREATE & SIGN TRANSACTIONS

We can create transactions and sign it with the wallet. For this demo, we will
mint an asset and send it to an address. Go to Transaction to learn more about
building transactions.

import { Transaction, ForgeScript } from '@meshsdk/core';
import type { Mint, AssetMetadata } from '@meshsdk/core';

const walletAddress = wallet.getPaymentAddress();
const forgingScript = ForgeScript.withOneSignature(walletAddress);

const assetMetadata1: AssetMetadata = {
  name: 'Mesh Token',
  image: 'ipfs://QmRzicpReutwCkM6aotuKjErFCUD213DpwPq6ByuzMJaua',
  mediaType: 'image/jpg',
  description: 'This NFT is minted by Mesh (https://meshjs.dev/).',
};
const asset1: Mint = {
  assetName: 'MeshToken',
  assetQuantity: '1',
  metadata: assetMetadata1,
  label: '721',
  recipient: 'addr_test1vpvx0sacufuypa2k4sngk7q40zc5c4npl337uusdh64kv0c7e4cxr'
};

const tx = new Transaction({ initiator: wallet });
tx.mintAsset(forgingScript, asset1);

const unsignedTx = await tx.build();
const signedTx = await wallet.signTx(unsignedTx);
const txHash = await wallet.submitTx(signedTx);


Create a transaction to mint asset

Define the address to send minted assets to.

Send minted asset to address

Load a wallet to try this endpoint.

Create minting transaction, sign and submit


SIGN DATA

Sign data allows you to sign a payload to identify the wallet ownership.

const address = wallet.getPaymentAddress();
const signature = wallet.signData(address, payload);

Sign data

Define a payload and sign it with wallet.

Payload

Load a wallet to try this endpoint.

Sign the payload

Mesh

Mesh is an open-source library to advance Web3 development on Cardano.

 * 
 * 
 * 


GET STARTED

 * Starter Templates
 * Guides
 * Migration / Manual Installation


CORE APIS

 * App Wallet
 * Browser Wallet
 * Send Assets
 * Smart Contracts
 * Minting and Burning Assets
 * Stake Pool
 * Resolvers


USEFUL BUILDING BLOCKS

 * React Components
 * Providers


ABOUT MESH

 * FAQ
 * Implemented CIPs
 * Support Us

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© 2022 Mesh. Apache-2.0 license.