hello, Mike!

how can I help you today?

Hi Mark. I wanted to talk a little about the code in your example for Retrofit2, ref: https://github.com/commonsguy/cw-omnibus/tree/v...

OK

did you have anything specific that concerned you?

I am a little confused about how the response from the web server api (stack overflow) is processed. First, in this file, where does the "questions" come from? I don't see where it is defined. https://github.com/commonsguy/cw-omnibus/blob/v...

it comes from the server

it is defined, if you will, by Retrofit itself

you can name it anything you want?

Retrofit synthetically generates an implementation of this interface

the method name does not matter

ok, great, please standby while I take another look at it.

everything that the server cares about comes from annotations (e.g., the @GET and @Query)

I see in QuestionsFragment.java, it seems that the response is processed in onResponse. It seems like the data shows up there "magically," lol

in line 58, I call questions() on an instance of the synthetic implemenation of SOQuestions

I then call enqueue() to say "hey, do this REST call in the background, and let me know when it's done, m'kay?"

onResponse() is the callback for a successful REST call

right, I think I understand the onResponse(). also in line 58, "android" is the tag for the query?

yes

nice.

i was trying to do my own example, and running into a little trouble with related it to yours and others I had seen. Your comment about the annotations is helpful

another question:

in Line 24 of the I/F, are you kind of saying to retrofit: define a method where it has a parameter of tags?

I am saying "when this method is called, make a REST request for /2.1/questions?order=desc&sort=creation&site=stackoverflow, and also append a 'tagged' query parameter, whose value comes from the tags method parameter"

got it. but we didn't define the method? Retrofit does that?

we didn't create the implementation

Retrofit does that

I don't know exactly how, since there is no compile-time annotation processor at work here

ok, i think i understand it better now. and @Query("tagged") - how does that work?

again, that says "append a 'tagged' query parameter to the URL, whose value comes from the annotated method parameter)

ok, thank you so much, I will take this back and digest your insights some more, and apply them to my example. are these chats archived anywhere?

this chat transcript will be added shortly after the chat ends

ok, thanks. much appreciated. Happy Holidays to you.

and to you as well!

thank you