Webhook has no content type in header

[MajdT51]

• Are you filing a bug report? bug, enhancement

What I'm trying to do I'm trying to implement a controller (typescript -Nestjs) and I have enabled a rest endpoint for webhook to receive notified messages from my Agent.

The Agent has the following flag --webhook-url http://host.docker.internal:3001/webhook

Expected result The post request coming from notifier has a content type in header and the message is in body and the receiver can get the message like this

  @Post('/webhook') 
  webhook(@Body() body): any {
        this.logger.debug('--Webhook Message--');
        this.logger.debug(JSON.stringify(body));
  }

Actual result The Post request does not have a Content-Type

User-Agent Go-http-client/1.1
Content-Length 496
Accept-Encoding gzip

and therefore the receiver cannot parse it correctly. currently I need to do something like this to get the message:

  @Post('/webhook') 
  webhook(@Request() req: express.Request): any {
    var body = '';
    var messageAsJson = '';
    req.on('data', function (data) {
        body += data;
        // Too much POST data, kill the connection!
        if (body.length > 1e6) {
          req.socket.destroy()
        }
    });
    req.on('end', () => {
      messageAsJson = JSON.parse(body.replace("[object Object]", ""));
      this.logger.debug('--Webhook Message--');
      this.logger.debug(JSON.stringify(messageAsJson));
    });
    return true
  }