AWS S3 Rest API with Android Retrofit V2 library, uploaded image is damaged

Question

I\'m trying upload a Image from my Android APP to Amazon AWS S3 and I need use AWS Restful API.

I\'m using Retrofit 2

Answer 1

You are sending a multipart payload, but forcing the Content-type to be image/jpeg. Your jpg is corrupt because S3 probably saved the multipart headers into your jpg file since you told it the whole message was a JPG. Since you do not actually have multiple parts to send, you can drop the Multipart annotation and use Body instead of Part for your RequestBody

public interface AwsS3 {

    @PUT("/{Key}")
    Call upload(@Path("Key") String Key,
                @Header("Content-Length") long length,
                @Header("Accept") String accept,
                @Header("Host") String host,
                @Header("Date") String date,
                @Header("Content-type") String contentType,
                @Header("Authorization") String authorization,
                @Body RequestBody body);
}

You should also be able to remove explicitly setting the Content-type and Content-length headers.