Final answer:
To annotate events with a global request ID, you need to have a unique identifier for each request and attach it as a header or parameter. This identifier is then included in the metadata of any events that occur, allowing for easy tracing.
Step-by-step explanation:
In order to annotate events with a global request ID, you can follow a few steps:
- First, ensure that you have a unique identifier for each request that is sent to the server.
- Next, attach this identifier as a header or parameter to each request made from your application.
- When an event occurs, such as an error or a log, include the global request ID in the event's metadata.
- By doing so, you can easily trace back the event to its associated request and determine the context in which it occurred.For example, if you are using a web framework like Express.js, you can create a middleware function that generates a unique request ID and attaches it to the request object. Then, you can access this ID in other middleware functions or event handlers to annotate events with the global request ID.