@polkadot/api-provider/http/send.js

"use strict";

// Copyright 2017-2018 Jaco Greeff
// This software may be modified and distributed under the terms
// of the ISC license. See the LICENSE file for details.
const assert = require('@polkadot/util/assert');

module.exports = async function send({
  coder,
  endpoint
}, method, params) {
  const body = coder.encodeJson(method, params);
  const response = await fetch(endpoint, {
    body,
    headers: {
      'Accept': 'application/json',
      'Content-Length': `${body.length}`,
      'Content-Type': 'application/json'
    },
    method: 'POST'
  });
  assert(response.ok, `[${response.status}]: ${response.statusText}`);
  const result = await response.json();
  return coder.decodeResponse(result);
};