@rpldy/chunked-sender/lib/esm/chunkedSender/handleChunkRequest.js

adds chunked upload capabilities on top of the regular XHR uploads

import { FILE_STATES, logger, pick } from "@rpldy/shared";
import { unwrap } from "@rpldy/simple-state";
import { CHUNK_EVENTS } from "../consts";
const handleChunkRequest = (chunkedState, item, chunkId, chunkSendResult, trigger, onProgress) => {
  chunkedState.updateState(state => {
    state.requests[chunkId] = {
      id: chunkId,
      abort: chunkSendResult.abort
    };
  });
  return chunkSendResult.request.then(result => {
    logger.debugLog(`chunkedSender: request finished for chunk: ${chunkId} - `, result);
    chunkedState.updateState(state => {
      delete state.requests[chunkId];
    });
    const chunks = chunkedState.getState().chunks;
    const index = chunks.findIndex(c => c.id === chunkId);
    if (~index) {
      if (result.state === FILE_STATES.FINISHED) {
        const finishedChunk = chunks[index];
        chunkedState.updateState(state => {
          state.chunks = state.chunks.slice(0, index).concat(state.chunks.slice(index + 1));
        });
        const chunkSize = finishedChunk.end - finishedChunk.start;
        onProgress({
          loaded: chunkSize,
          total: item.file.size
        }, [finishedChunk]);
        trigger(CHUNK_EVENTS.CHUNK_FINISH, {
          chunk: pick(finishedChunk, ["id", "start", "end", "index", "attempt"]),
          item: unwrap(item),
          uploadData: result
        });
      } else if (result.state !== FILE_STATES.ABORTED) {
        chunkedState.updateState(state => {
          state.chunks[index].attempt += 1;
          state.lastChunkErrorData = {
            status: result.status,
            response: result.response
          };
        });
      }
      chunkedState.updateState(state => {
        state.responses.push(result.response);
      });
    }
  });
};
export default handleChunkRequest;