soldo

DApp Toolkit for Solana.

Connection

Example: Connect to Solana devnet RPC:

const conn = solana.connect("dev")

See: @solana/web3.js Connection

Wallet

Example: Generate a random mnemonic wallet

const conn = solana.connect("dev")
const mnemonic = Wallet.generateMnemonic()
const wallet = await Wallet.fromMnemonic(mnemonic, conn)

Example: Request airdrop into a wallet

const conn = solana.connect("dev")
const mnemonic = "spin canyon tuition upset pioneer celery liquid conduct boy bargain dust seed"
const wallet = await Wallet.fromMnemonic(mnemonic, conn)
console.log(wallet.address)

await conn.requestAirdrop(wallet.pubkey, 1e9)

Visit explorer to see account info:

https://explorer.solana.com/address/4i7YkLD9RiiACd4gbG9HdTUUH2wTfTycuRwB8GcehzMd?cluster=devnet

Example: Derive sub-accounts from a master seed.

const conn = solana.connect("dev")
const mnemonic = "spin canyon tuition upset pioneer celery liquid conduct boy bargain dust seed"
const wallet = await Wallet.fromMnemonic(mnemonic, conn)

for (let i = 0; i < 10; i++) {
  // generate a subwallet on a hardened path
  const subwallet = wallet.derive(`${i}'`)
  console.log(i, subwallet.address)
}

Outputs:

0 GziwkGpdZDhfGiVm6XbhHE7AxqWz3jsFqcj8RgS9vkjp
1 BiZj86nxypouBDuuzv4uzzsdwQHiMGK7v1RA3JqAhwqE
2 vTwNcpSuZ9uKBBm4KzGsF7bNmBTqXCo5KvK88LZVhCX
3 9A6c6CCekFfcMt2uhjhNMoZnHnNMW5sDqEUVPHb8FW1N
4 FDnToGeENVcF6NYAAedGAn8ZoXbf3vDuVzE7GsCyegD9
5 Ef413p9kVUSPmwJbcmHwF8b8YUDiiNCs5F4jQdfv3bzx
6 CFt5muH2K53VFd7Fi5W7s8LhrJnNZZidm9tRNA671k1G
7 GMC8dHpXHnMteKSpiFbD1d6v9Kxx3y2GCXAaFFtfrKoX
8 g3FjgBPctNjhQA5639oR7gk2dpVFkkePBo71rzGJ9u1
9 8dUEQMXWoiWve3xh1Udq1NWY9WynFXhE6o6jUkeF5Y4N

BaseProgram

The BaseProgram is an abstract class that you can extend to build concise API that interacts with programs deployed on Solana.

The BaseProgram constructor requires Wallet and the programID, so that an instance of base program will use the wallet's account to sign transactions, as well as using the specified programID to create instructions.

Example: Faucet Program

// Create an instance of the Faucet program
const faucet = new Faucet(wallet, facuetProgramID)

// Request the faucet to send tokens a receiver
await faucet.request({
  receiver: receiver.pubkey,
  tokenAccount: faucetTokenAccountPubkey,
  tokenOwner: faucetTokenOwner,
})

The Faucet program extends BaseProgram:

import {
  PublicKey,
  BaseProgram,
  ProgramAccount,
  SPLToken,
} from "soldo"

interface RequestParams {
  receiver: PublicKey
  tokenAccount: PublicKey
  tokenOwner: ProgramAccount
}

export class Faucet extends BaseProgram {
  public async request(params: RequestParams) {
    return this.sendTx([
      // instructions
      this.requestInstruction(params),
    ], [
      // signers
      this.account,
    ])
  }

  private requestInstruction(params: RequestParams) {
    const data = params.tokenOwner.noncedSeed

    return this.instruction(data, [
      // writable: true, isSigned: false
      { write: params.receiver },
      // writable: false, isSigned: false
      SPLToken.programID,
      // writable: true, isSigned: false
      { write: params.tokenAccount },
      // writable: false, isSigned: false
      params.tokenOwner.pubkey,
    ])
  }
}