ipfs-http-client/cjs/src/lib/resolve.js

A client library for the IPFS HTTP API

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var cid = require('multiformats/cid');
var errCode = require('err-code');

function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }

var errCode__default = /*#__PURE__*/_interopDefaultLegacy(errCode);

async function* resolve(cid$1, path, codecs, getBlock, options) {
  const load = async cid => {
    const codec = await codecs.getCodec(cid.code);
    const block = await getBlock(cid, options);
    return codec.decode(block);
  };
  const parts = path.split('/').filter(Boolean);
  let value = await load(cid$1);
  let lastCid = cid$1;
  if (!parts.length) {
    yield {
      value,
      remainderPath: ''
    };
  }
  while (parts.length) {
    const key = parts.shift();
    if (!key) {
      throw errCode__default["default"](new Error(`Could not resolve path "${ path }"`), 'ERR_INVALID_PATH');
    }
    if (Object.prototype.hasOwnProperty.call(value, key)) {
      value = value[key];
      yield {
        value,
        remainderPath: parts.join('/')
      };
    } else {
      throw errCode__default["default"](new Error(`no link named "${ key }" under ${ lastCid }`), 'ERR_NO_LINK');
    }
    const cid$1 = cid.CID.asCID(value);
    if (cid$1) {
      lastCid = cid$1;
      value = await load(value);
    }
  }
}

exports.resolve = resolve;