@ethersphere/bee-js/dist/mjs/modules/chunk.js

Javascript client for Bee

import { Optional, Types } from 'cafe-utility';
import { prepareRequestHeaders } from "../utils/headers.js";
import { http } from "../utils/http.js";
import { makeTagUid } from "../utils/type.js";
import { Reference } from "../utils/typed-bytes.js";
const endpoint = 'chunks';
/**
 * Upload chunk to a Bee node
 *
 * The chunk data consists of 8 byte span and up to 4096 bytes of payload data.
 * The span stores the length of the payload in uint64 little endian encoding.
 * Upload expects the chuck data to be set accordingly.
 *
 * @param requestOptions Options for making requests
 * @param data Chunk data to be uploaded
 * @param stamp BatchId or marshaled stamp to be used for the upload
 * @param options Additional options like tag, encryption, pinning
 */
export async function upload(requestOptions, data, stamp, options) {
  const response = await http(requestOptions, {
    method: 'post',
    url: `${endpoint}`,
    data,
    headers: {
      'content-type': 'application/octet-stream',
      ...prepareRequestHeaders(stamp, options)
    },
    responseType: 'json'
  });
  const body = Types.asObject(response.data, {
    name: 'response.data'
  });
  return {
    reference: new Reference(Types.asString(body.reference, {
      name: 'reference'
    })),
    tagUid: response.headers['swarm-tag'] ? makeTagUid(response.headers['swarm-tag']) : undefined,
    historyAddress: response.headers['swarm-act-history-address'] ? Optional.of(new Reference(response.headers['swarm-act-history-address'])) : Optional.empty()
  };
}
/**
 * Download chunk data as a byte array
 *
 * @param requestOptions Options for making requests
 * @param hash Bee content reference
 *
 */
export async function download(requestOptions, reference, options) {
  reference = new Reference(reference);
  const response = await http(requestOptions, {
    responseType: 'arraybuffer',
    url: `${endpoint}/${reference}`,
    headers: prepareRequestHeaders(null, options)
  });
  return new Uint8Array(response.data);
}