Server — HCS‑5 Client

TypeScript

import 'dotenv/config';
import { HCS5Client } from '@hashgraphonline/standards-sdk';

const hcs5 = new HCS5Client({
  network: 'testnet',
  operatorId: process.env.HEDERA_ACCOUNT_ID!,
  operatorKey: process.env.HEDERA_PRIVATE_KEY!,
});

const res = await hcs5.createHashinal({
  tokenId: '0.0.123456',
  inscriptionInput: {
    type: 'buffer',
    buffer: Buffer.from('hello'),
    fileName: 'note.txt',
    mimeType: 'text/plain',
  },
});

Go

import "github.com/hashgraph-online/standards-sdk-go/pkg/hcs5"

client, err := hcs5.NewClient(hcs5.ClientConfig{
	Network:            "testnet",
	OperatorAccountID:  os.Getenv("HEDERA_ACCOUNT_ID"),
	OperatorPrivateKey: os.Getenv("HEDERA_PRIVATE_KEY"),
})
if err != nil {
	log.Fatal(err)
}

res, err := client.CreateHashinal(ctx, hcs5.CreateHashinalOptions{
	TokenID:  "0.0.123456",
	FileName: "note.txt",
	MimeType: "text/plain",
	Data:     []byte("hello"),
})