Android Retrofit pass parameter

Question

I am using retrofit to fetch a single post by post-id, I am getting error while passing the post id. I've tried several methods but non of them has returned the right respond.

I tried already:

@GET("?rest_route=/wp/v2/posts/")
    Call<SinglePost> getSinglePost(@FieldMap Map<String, String> map); 

@GET("?rest_route=/wp/v2/posts/")
    Call<SinglePost> getSinglePost(@QueryMap Map<String, String> map);

@GET("?rest_route=/wp/v2/posts/")
    Call<SinglePost> getSinglePost(@QueryMap<String, String> map);

@GET("?rest_route=/wp/v2/posts/{postid}")
    Call<SinglePost> getSinglePost(@Path("postid")int postid);

@GET("?rest_route=/wp/v2/posts/{postid}")
    Call<SinglePost> getSinglePost(@Path("postid")int postid);

@GET("?rest_route=/wp/v2/posts/{postid}")
    Call<SinglePost> getSinglePost(@Field("postid") int postid);

this is the original link https://www.mywordpress.com/?rest_route=/wp/v2/posts/3561

Answer 1

Declare your API call like this

@GET("/")
Call<SinglePost> getSinglePost(@QueryMap Map<String, String> map);

Make a map of parameter and pass it when initializing your API call

HashMap<String, String> map = new HashMap<>();
map.put("rest_route", "/wp/v2/posts/3561");
Call<SinglePost> call = apiService.getSinglePost(map);