Retrofit post request structure

Try this

@POST("home/info/{city_id}")Call<ResponseData> getData(@Path("city_id") int cityId);

Here is some steps for call post request in retrofit.

Make http request with retrofit.

public IWebInterface serviceCallApi() { HttpLoggingInterceptor logging = new HttpLoggingInterceptor();        logging.setLevel(HttpLoggingInterceptor.Level.BODY);        OkHttpClient.Builder builder = new OkHttpClient.Builder()                .connectTimeout(Constants.Web.CONNECTION_TIMEOUT, TimeUnit.SECONDS)                .writeTimeout(Constants.Web.CONNECTION_TIMEOUT, TimeUnit.SECONDS)                .readTimeout(Constants.Web.CONNECTION_TIMEOUT, TimeUnit.SECONDS);        builder.addInterceptor(logging);        OkHttpClient client = builder.build();        Retrofit retrofit = new Retrofit.Builder()                .baseUrl(add_your_base_url)                .client(client)                .addConverterFactory(JacksonConverterFactory.create())                .build();        return retrofit.create(IWebInterface .class);}

Create interface which will append request parameter

public interface IWebInterface {@POST("home/info/")@FormUrlEncodedCall<ResponseData> getJson(@Field("city_id") String title);}

Now you already created model. fill this model as a body to your retrofit call

 public boolean callApi(){ boolean isSuccess = false; Call<ResponseData> call = serviceCallApi.getJson(pass_your_city);        try {            Response<ResponseData> response= call.execute();            if (response.code() == 200) {                ResponseData responseParser = response.body();                if (responseParser != null) {                    isSuccess = true;                                       }            }          } catch (IOException e) {            Log.e("Exception", e.getMessage());        }} return isSuccess;

}

your model :

public class Post {    @SerializedName("city_id")    @Expose    private String title;               public String getTitle() {        return title;    }    public void setTitle(String title) {        this.title = title;    }}

here is the steps i did in my project for call POST retrofit.Hope it will help you!!