How can the built-in RestService of ABP be utilized in conjunction with FormData?

Looking to upload a file in my ABP-based application.

Here is how my application service is set up:

public async Task<IEnumerable<ScheduleDto>> UploadAsync(IFormFile File)

This generates a REST API endpoint like this:

https://i.sstatic.net/Q7ZON.png

Everything seems to be working fine so far.

However, the client-side proxy generated when I create it does not accept files as input. It instead creates JSON for IFormFile:

upload = (File: IFormFile) =>
  this.restService.request<any, ScheduleDto[]>({
    method: 'POST',
    url: `/api/app/schedule/upload`,
  },
  { apiName: this.apiName });

Since this method was not really useful, I decided to use the REST service provided by the ABP framework as it handles success and failure internally. I injected the RestService into the component:

constructor(private matchService: MatchService, private scheduleService: ScheduleService,private rest: RestService) {} //

Using that service, I made a call using the request method and passed the file as FormData, but nothing seemed to happen when I posted the file:

UploadSchedule(files) {
  const formData = new FormData();
  formData.append('file', files[0], files[0].name);

  this.rest.request<FormData, ScheduleDto[]>({
    method: 'POST',
    url: `/api/app/schedule`,
    body: formData,
  });
}

I know I can upload a file using Angular's HTTP service, so it seems like there may be an issue with the way ABP generated service only supports JSON data and not FormData.

Answer №1

To utilize the built-in RestService for uploading files, ensure that you return the observable and subscribe to it. It appears that the { apiName: this.apiName } parameter is missing in your code. Make the necessary adjustments by modifying the UploadSchedule method as shown below and remember to subscribe to it from the calling location.

UploadSchedule(files) {
  const formData = new FormData();
  formData.append('file', files[0], files[0].name);

  return this.rest.request<FormData, ScheduleDto[]>({
    method: 'POST',
    url: `/api/app/schedule`,
    body: formData,
  },
  { apiName: this.apiName });
}

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