makemehapi/exercises/uploads/solution/solution.js

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(async () => {
  try {
      const Hapi = require('hapi');
      const server = new Hapi.Server({
          host: 'localhost',
          port: Number(process.argv[2] || 8080)
      });

      server.route({
          method: 'POST',
          path: '/upload',
          config: {
              handler: (request, h) => {
                  return new Promise((resolve, reject) => {
                      let body = '';
  
                      request.payload.file.on('data', (data) => {
                          body += data;
                      });
      
                      request.payload.file.on('end', () => {
                          let result = {
                              description: request.payload.description,
                              file: {
                                  data: body,
                                  filename: request.payload.file.hapi.filename,
                                  headers: request.payload.file.hapi.headers
                              }
                          };
      
                          return resolve(JSON.stringify(result));
                      });

                      request.payload.file.on('error', (err) => {
                          return reject(err);
                      });
                  });
              },
              payload: {
                  output: 'stream',
                  parse: true,
                  allow: 'multipart/form-data'
              }
          }
      });

      await server.start();
  }
  catch (error) {
      console.log(error)
  }
})();