Can API keys be added to the header using Retrofit2 android

Question

Cannot get the API request to work with the API key. Have already tested it with a different API that doesn't use an API Key, which has worked. Makes me think that I'm not adding the API Key properly.

Tested it on postman using the authentication tab which works well.

How can I send the key Access-Key and value 9xxxxxxxxxxxxx3 using retrofit2?

code

Answer 1

When you call R.string.api_key, you don't get the String value, you only get its id, which is represented as a number. To get the value you need to have context and call context.getString(R.string.api_key). In our case, it is better to take it out from string.xml and place it in some class. For example

object Constants {
    const val BASE_URL = "http://test.com/"
}

and then inside the retrofit

 return Retrofit.Builder()
            .baseUrl(Constants.BASE_URL)

but if you want to get the value from string.xml you need to change getInstance() method from example add Context.