00_client_init.ts

// the package for hex-bytes transform
import { hexToBytes } from 'hada'
import { crypto } from '@iroha2/crypto-target-node'
import { KeyPair } from '@iroha2/crypto-core'
import { setCrypto } from '@iroha2/client'
import { Client } from '@iroha2/client'
import { AccountId, DomainId } from '@iroha2/data-model'

setCrypto(crypto)

function generateKeyPair(params: {
    publicKeyMultihash: string
    privateKey: {
      digestFunction: string
      payload: string
    }
  }): KeyPair {
    const multihashBytes = Uint8Array.from(
      hexToBytes(params.publicKeyMultihash),
    )
    const multihash = crypto.createMultihashFromBytes(multihashBytes)
    const publicKey = crypto.createPublicKeyFromMultihash(multihash)
    const privateKey = crypto.createPrivateKeyFromJsKey(params.privateKey)
  
    const keyPair = crypto.createKeyPairFromKeys(publicKey, privateKey)
  
    // don't forget to "free" created structures
    for (const x of [publicKey, privateKey, multihash]) {
      x.free()
    }
  
    return keyPair
}
  
const kp = generateKeyPair({
publicKeyMultihash:
    'ed0120e555d194e8822da35ac541ce9eec8b45058f4d294d9426ef97ba92698766f7d3',
privateKey: {
    digestFunction: 'ed25519',
    payload:
    'de757bcb79f4c63e8fa0795edc26f86dfdba189b846e903d0b732bb644607720e555d194e8822da35ac541ce9eec8b45058f4d294d9426ef97ba92698766f7d3',
},
})

const client = new Client({
  torii: {
    // Both URLs are optional in case you only need one of them,
    // e.g. only the telemetry endpoints
    apiURL: 'http://127.0.0.1:8080',
    telemetryURL: 'http://127.0.0.1:8081',
  },
  accountId: AccountId({
    // Account name
    name: 'alice',
    // The domain where this account is registered
    domain_id: DomainId({
      name: 'wonderland',
    }),
  }),
  // A key pair, needed for transactions and queries
  keyPair: kp,
})