Unable to access elements of ListCoursesResponse

[pmnlla]

Heyo! I'm trying to access the course list of hub.courses().list().doit().await; where I assume that each course is a separate Course struct, through the following piece of code:

    match req {
        Err(e) => print!("{}",e),
        Ok(output) => courseListParse(output.1, clist),
    }
 
 // outside of function...
 
 fn courseListParse(mut response:ListCoursesResponse, mut clist:Vec<class::classType>){
    for i in &response.courses{
        println!("{:?}\n", i); // this print statement is a placeholder so i can view the data returned by the gclassroom api, and later aggregate it
    }
}
 

however, i am running into an issue where the data returned by response.courses is a single element, probably a vector of classes. I cannot access any elements of this vector through this current function.

I'm quite new to rust, so if I'm making any obvious mistake, please let me know. I did look over rustdoc and found out that the courses variable in ListCoursesResponse is a vector of Courses, which I think would typically be accessible through response.courses.[0-x] as per a typical vector.

[Byron]

I'd rely on auto-complete to show what's accessible in a particular struct, and in lieu of that use the docs.rs documentation of the crate.
Without the name of it I can't link to it though.

Since it seems to debug print, I'd assume it's possible to access Course fields as well if these are pubic. If not, that would be unusual.

[pmnlla]

Sorry I forgot to include that information. The crate is google_classroom1. The confusingly named second variable in courseListParse, "clist, is of a custom structure I built so I wouldn't have to parse the api response every time. You can ignore that.

This is the autocomplete response for response.courses:

This is the autocomplete response for i:

[Byron]

I'd recommend to look up the docs and see how the type Option<Vec<Course>> can be handled. What's probably confusing here is that Option also can be iterated, which is why that loop seems to return a Vec<Course> itself, which of course could now be iterated as well.

Since this is a Rust question, it's not at all related to this crate as initially suggested.

[pmnlla]

I didn't realize that Option could be iterated through. Thank you so much! I'll have a shot at passing the response again when I'm home.