webvideo-clip-web-api/src/routes.ts

import {
  createVideoClipper,
  VideoType,
  CreateVideoClipperParams,
} from '@modal/webvideo-clip-core';
import { constants } from 'http2';
import SERVER from './server';

SERVER.route({
  method: 'POST',
  url: '/clip',
  handler: async (request, reply) => {
    const {
      url,
      start,
      end,
    } = request.body as Record<string, unknown>;

    const { postprocess = false } = request.query as Record<string, unknown>;

    let videoType: string = '';

    if (url.startsWith('https://www.youtube.com')) {
      videoType = VideoType.YOUTUBE;
    }

    const videoClipperArgs = {
      type: videoType,
      url,
      start,
      end,
      downloaderExecutablePath: process.env.YOUTUBE_DOWNLOADER_EXECUTABLE_PATH,
    } as CreateVideoClipperParams;
    if (postprocess) {
      videoClipperArgs.postprocessorExecutablePath = process.env.POSTPROCESSOR_EXECUTABLE_PATH;
    }

    const clipper = createVideoClipper(videoClipperArgs);

    let clipResult: Record<string, unknown>;
    clipper.on('success', (result: Record<string, unknown>) => {
      clipResult = result;
    });

    let theError: Error;
    clipper.on('error', (error: Error) => {
      theError = error;
    });

    clipper.on('end', () => {
      if (theError) {
        reply
          .status(constants.HTTP_STATUS_INTERNAL_SERVER_ERROR)
          .send({
            message: theError.message,
          });
        return;
      }

      reply
        .header('Content-Type', clipResult.type as string)
        .send(clipResult.output as Buffer);
    });

    clipper.process();
  },
});