Add an array as request parameter with Retrofit 2

Question

I\'m looking for way to add an int array (e.g [0,1,3,5]) as parameter in a GET request with retrofit 2. Then, the generated url should be like this : http:/

Answer 1

You need to name your query param with an array syntax like so:

@GET("http://server/service")
Observable getSomething(@Query("array[]") List array);

The syntax itself will vary by the backend technology being used, however not including the brackets "[]" will normally be interpreted as a single value.

For example, using array=1&array=2 will generally be interpreted by backends as only array=1 or array=2 instead of array=[1,2].