Android Upload Multiple Files In A Single Request

Question

I\'m posting content to the server in a multipart/form-data request. and the data I\'m posting contains multiple parameters including a file array parameter (files[]).

Answer 1

I think you should change the MediaType for file. and you also check the link for that https://futurestud.io/tutorials/retrofit-2-how-to-upload-files-to-server and for send file with @Part MultipartBody.Part

MediaType mediaTypeForText = MediaType.parse("text/plain"); 
MediaType mediaTypeForImage = MediaType.parse("image/*");

Map params = new HashMap<>(); 
params.put("first-parameter", MultipartBody.create(mediaTypeForText, "first-parameter-value")); 
params.put("second-parameter", MultipartBody.create(mediaTypeForText, "second-parameter-value")); 
params.put("files[0]", MultipartBody.create(mediaTypeForImage, new File(fileUri.getPath())); 
params.put("files[1]", MultipartBody.create(mediaTypeForImage, new File(fileUri.getPath()));