@btc-helpers/rpc/dist/index.js

A somewhat typesafe Bitcoin RPC library

"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// lib/index.ts
var lib_exports = {};
__export(lib_exports, {
  default: () => RpcClient
});
module.exports = __toCommonJS(lib_exports);
var import_polyfill = require("cross-fetch/polyfill");
var import_base = require("@scure/base");
var RpcClient = class {
  hostname;
  port;
  protocol;
  auth;
  constructor(opts) {
    if (typeof opts === "string") {
      opts = decodeUrl(opts);
    }
    const defaultOptions = {
      host: "127.0.0.1",
      port: 8332,
      user: "devnet",
      pass: "devnet",
      protocol: "http"
    };
    const options = Object.assign(defaultOptions, opts || {});
    this.hostname = options.host;
    this.port = options.port;
    this.protocol = options.protocol;
    this.auth = import_base.base64.encode(
      new TextEncoder().encode(`${options.user}:${options.pass}`)
    );
  }
  get Typed() {
    return new Proxy(this, {
      get(target, property, receiver) {
        if (property in target)
          return Reflect.get(target, property, receiver);
        return async function(params) {
          return await target.call({
            jsonrpc: "2.0",
            method: property.toString().toLowerCase(),
            params,
            id: getRandomId()
          });
        };
      }
    });
  }
  async call(body) {
    const options = {
      method: "POST",
      headers: {
        Authorization: `Basic ${this.auth}`,
        "Content-Type": "application/json"
      },
      body: JSON.stringify(body)
    };
    const errorPrefix = "Bitcoin JSON-RPC: ";
    const res = await fetch(
      `${this.protocol}//${this.hostname}:${this.port}`,
      options
    );
    if (res.status === 401) {
      throw new Error(errorPrefix + "Connection Rejected: 401 Unnauthorized");
    }
    if (res.status === 403) {
      throw new Error(errorPrefix + "Connection Rejected: 403 Forbidden");
    }
    const text = await res.text();
    if (res.status === 500) {
      if (text === "Work queue depth exceeded") {
        const exceededError = new Error(errorPrefix + text);
        exceededError.code = 429;
        throw exceededError;
      }
    }
    const json = JSON.parse(text);
    if (!res.ok)
      throw new Error(
        `${errorPrefix}${json?.error?.code} ${json?.error?.message}`
      );
    return json.result;
  }
};
function decodeUrl(url) {
  const parsedUrl = new URL(url);
  return {
    host: parsedUrl.hostname,
    port: parseInt(parsedUrl.port, 10),
    protocol: parsedUrl.protocol,
    user: parsedUrl.username,
    pass: parsedUrl.password
  };
}
function getRandomId() {
  return parseInt(Math.random() * 1e5);
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {});