RequestIdPolicy (Azure SDK for Java Reference Documentation)

java.lang.Object
- com.azure.core.http.policy.RequestIdPolicy

All Implemented Interfaces:

HttpPipelinePolicy
```
public class RequestIdPolicy
extends Object
implements HttpPipelinePolicy
```
The pipeline policy that puts a UUID in the request header. Azure uses the request id as the unique identifier for the request.
The default HttpHeader name can be overwritten as shown below
Code sample
```
 new RequestIdPolicy("x-ms-my-custom-request-id");
 
```

Constructor Summary

Constructors
Constructor	Description
`RequestIdPolicy()`	Creates default `RequestIdPolicy` with default header name 'x-ms-client-request-id'.
`RequestIdPolicy(String requestIdHeaderName)`	Creates `RequestIdPolicy` with provided `requestIdHeaderName`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Mono<HttpResponse>`	`process(HttpPipelineCallContext context, HttpPipelineNextPolicy next)`	Processes provided request context and invokes the next policy.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.azure.core.http.policy.HttpPipelinePolicy
getPipelinePosition

- Constructor Detail
  - RequestIdPolicy
```
public RequestIdPolicy(String requestIdHeaderName)
```
    Creates RequestIdPolicy with provided requestIdHeaderName.
    
    Parameters:
    
    requestIdHeaderName - to be used to set in HttpRequest.
  - RequestIdPolicy
```
public RequestIdPolicy()
```
    Creates default RequestIdPolicy with default header name 'x-ms-client-request-id'.
- Method Detail
  - process
```
public Mono<HttpResponse> process(HttpPipelineCallContext context,
                                  HttpPipelineNextPolicy next)
```
    Description copied from interface: HttpPipelinePolicy
    
    Processes provided request context and invokes the next policy.
    
    Specified by:
    
    process in interface HttpPipelinePolicy
    
    Parameters:
    
    context - The request context.
    
    next - The next policy to invoke.
    
    Returns:
    
    A publisher that initiates the request upon subscription and emits a response on completion.