Stake Pool (TS/JS + Fetch)

Learn how to delegate to a Stake Pool using TypeScript or JavaScript and the Anvil API.

https://github.com/Cardano-Forge/anvil-api-examples/blob/main/utils/constant.ts

// See Authentication page for API key details.
export const X_API_KEY = "testnet_EyrkvCWDZqjkfLSe1pxaF0hXxUcByHEhHuXIBjt9";
export const NETWORK = "preprod";
export const API_URL = `https://${NETWORK}.api.ada-anvil.app/v2/services`;
export const HEADERS = {
  "Content-Type": "application/json",
  "x-api-key": X_API_KEY,
};

https://github.com/Cardano-Forge/anvil-api-examples/blob/main/documentation-references/delegate-pool.ts

import { API_URL, HEADERS } from "../utils/constant.ts";

const POOL_ID = "pool1n3sjq3qvu5vvcd6aud6ndcwq7r3ghmkafcg60gznlwfrk2ucxku";
const ADDR =
  "addr_test1qzyttcj6czjltcs3tn3vls6yg90542lctrzwg5aagduqlfgupztxhczzmuakzfuwvrht542yrx7ll3fk29lcl2xl8axqh3pjdh";

const BODY = {
  changeAddress: ADDR,
  delegations: [
    {
      type: "pool",
      address: ADDR,
      keyHash: POOL_ID,
    },
  ],
};

const response = await fetch(`${API_URL}/transactions/build`, {
  method: "POST",
  headers: HEADERS,
  body: JSON.stringify(BODY),
});

console.log(await response.json());

// {
//   hash: "a4633c716755a8d72d07c058ffabe94c9b8b0f8273a8d7babb1f607050fb3c3b",
//   complete: "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",
//   stripped: "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",
//   witnessSet: "a100d90102818258204bc7618201307ab45cdb3793107822c47230f097e9771fb358473cdb82b2e644584020ecc8e8a0b6d2f4a2bd51d388ee20abebf4982d55ce738d9b1c223bc77152fa175c15729e96073873d262017ea113ff41a8ec26a16441029f00fbf004229b07"
// }

Learn More

For a step-by-step explanation, see the Delegate to a Stake Pool Guide.