CODEWITHSUNDEEP
javaandroidhttpretrofit
NiceToMytyuk
NiceToMytyuk

Reputation: 4307

Unable to submit post to API Retrofit

Actually i'm trying to send a txt file to a server using Retrofit. But when i actually trying to send it it gives me the following error from onFailure method

I'm new in android and by looking on some tutorials on retrofit i can't still get what am i doing wrong and even if i'm using in right way retrofit, that would be great if someone will be able to help me.

E/TAG: Unable to submit post to API.

But actually it's creating a folder on the server but not sending the file, what i'm doing wrong?

Here is my ApiUtils.java

import okhttp3.RequestBody;
import retrofit2.Call;
import retrofit2.http.Body;
import retrofit2.http.POST;

public interface APIService {

    @POST("UPD.aspx?CART=PTERM")
    Call<MyResponse> savePost(@Body RequestBody text);
}

Here is RetrofitClient.java

import retrofit2.Retrofit;
import retrofit2.converter.gson.GsonConverterFactory;

public class RetrofitClient {

    private static Retrofit retrofit = null;

    public static Retrofit getClient(String baseUrl) {
        if (retrofit==null) {
            retrofit = new Retrofit.Builder()
                    .baseUrl(baseUrl)
                    .addConverterFactory(GsonConverterFactory.create())
                    .build();
        }
        return retrofit;
    }
}

Here is APIService.java

import okhttp3.MultipartBody;
import retrofit2.Call;
import retrofit2.http.Multipart;
import retrofit2.http.POST;
import retrofit2.http.Part;

public interface APIService {

    @Multipart
    @POST("UPD.aspx?CART=PTERM")
    Call<Void> savePost(@Part MultipartBody.Part text);
}

Here is sendPost() method which i use to send the file via onClick

public void sendPost() {
    File file = new File("/data/data/com.example.igardini.visualposmobile/files/scontrino.txt");

    MultipartBody.Builder builder = new MultipartBody.Builder();
    builder.setType(MultipartBody.FORM);

    builder.addFormDataPart("scontrino", file.getName());

    MultipartBody requestBody = builder.build();

    APIService apiService = ApiUtils.getAPIService();

    Call<Void> call = apiService.savePost(requestBody);

    call.enqueue(new Callback<Void>() {
        @Override
        public void onResponse(Call<Void> call, Response<Void> response) {
            if (response.isSuccessful()) {

            } else {

            }
        }

        @Override
        public void onFailure(Call<Void> call, Throwable t) {
            Log.e("TAG", t.toString());
        }
    });
}

And i'll appreciate if even someone will suggest me on how can i improve performance of retrofit with it's http requests.

Upvotes: 1

Views: 566

Answers (2)

Maitri
Maitri

Reputation: 543

private void sendPost() {

    MultipartBody.Builder builder = new MultipartBody.Builder();
    builder.setType(MultipartBody.FORM);

    builder.addFormDataPart("scontrino", file.getName());

    MultipartBody requestBody = builder.build();

    MainInterface apiService = ApiClient.getClient().create(MainInterface.class);

    Call<MyResponse> call = apiService.savePost(requestBody);

    call.enqueue(new Callback<MyResponse>() {
        @Override
        public void onResponse(Call<MyResponse> call, Response<MyResponse> response) {
            progressBarHandler.dismiss();
            if (response.isSuccessful()) {

            } else {

            }
        }

        @Override
        public void onFailure(Call<MyResponse> call, Throwable t) {

        }
    });
}

Upvotes: 1

Navneet Krishna
Navneet Krishna

Reputation: 5017

Use Void instead of empty class

public void sendPost(MultipartBody.Part txt) {
mAPIService.savePost(txt).enqueue(new Callback<Void>() {
    @Override
    public void onResponse(Call<Void> call, Response<Void> response) {

        if(response.isSuccessful()) {
            Log.i("TAG", "post submitted to API." + response.body().toString());
        }
    }

    @Override
    public void onFailure(Call<Void> call, Throwable t) {
        Log.e("TAG", "Unable to submit post to API.");
    }
});
}

Request body

RequestBody fbody = RequestBody.create(MediaType.parse("text/*"), file); 
builder.addFormDataPart("scontrino", file.getName(),fbody);

Upvotes: 1

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