Rust: Examples for the interceptor documentation do not compile

[DavidSouther]

See awslabs/aws-sdk-rust#1212

---

MathieuDuponchelle:

I am trying to make use of the interceptor API.

The example in the documentation @ https://docs.rs/aws-sdk-transcribestreaming/latest/aws_sdk_transcribestreaming/config/struct.Builder.html#method.interceptor does not compile.

Once I do get it to compile, I'm also only getting my read_before_deserialization() implementation called once:

  #[derive(Debug)] 
  struct MyInterceptor {                                                                                                       
  }       
                                                                                                                               
  impl Intercept for MyInterceptor {                                                                                           
      fn name(&self) -> &'static str {                                                                                         
          "transcriber-stream"                                                                                                 
      }                                                                                                                        
  
      fn read_before_deserialization(&self,                                                                                    
          _context: &BeforeDeserializationInterceptorContextRef<'_>,                                                           
          _runtime_components: &RuntimeComponents, _cfg: &mut ConfigBag,) -> Result<(), Box<dyn core::error::Error + Send + Sync>> {      
          eprintln!("Here");
       
          Ok(())
      }
  } 

// ...

              let my_interceptor = MyInterceptor {};
              let builder = aws_transcribe::config::Builder::from(aws_config)
                  .interceptor(my_interceptor);
              aws_transcribe::Client::from_conf(builder.build())

Links
https://docs.rs/aws-sdk-transcribestreaming/latest/aws_sdk_transcribestreaming/config/struct.Builder.html#method.interceptor

[DavidSouther]

Looks like this is the docblock example, and comes from https://github.com/smithy-lang/smithy-rs/blob/fd10a1640669e34e2ae8be9d137336dfa145051b/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/customizations/InterceptorConfigCustomization.kt#L66

[MathieuDuponchelle]

I don't understand why this was opened then closed, the code in the transcribe streaming documentation still does not compile :)

[DavidSouther]

That example comes from the SDK generator, and is tracked in the smithy-rs project. It was opened because we thought it was here, then closed as "issue in the wrong repo". The original issue you opened is still open and awaiting a fix in the generator!

[MathieuDuponchelle]

Ah I see, my bad :)