How to add parameters to api (http post) using okhttp library in Android

For OkHttp 3.x, FormEncodingBuilder was removed, use FormBody.Builder instead

        RequestBody formBody = new FormBody.Builder()
                .add("email", "Jurassic@Park.com")
                .add("tel", "90301171XX")
                .build();

        OkHttpClient client = new OkHttpClient();
        Request request = new Request.Builder()
                .url(url)
                .post(formBody)
                .build();

        Response response = client.newCall(request).execute();
        return response.body().string();