Response Time not displaying in Logs

[flowjo-isaach]

I'm hoping to display the response time for resolved fields and the requests from graphQL. I don't see this information in this module. Is there a configuration I'm missing or does it not exist?

[Eomm]

It doesn't exist: this plugin shows what comes in the server and does not count the time each resolver takes.

This plugin's scope is to understand:

• Which query is being used and how much?
• are clients using it in the right way?

so you can drop API or support your customer better and proactively.

For time tracking I suggest:

1. take a look at this plugin instead: https://github.com/nearform/mercurius-explain
2. Group the log data by reqId: you have already multiple log lines for a single request. Merging the logline from this plugin and the default fastify response log with the reqId, you can get the total request time

[EDjur]

Just want to add perhaps a simpler approach,

You can utilize the logMessage function and Fastifys built-in elapsedTime like so:

fastify.register(mercuriusLogging, {
    logMessage: function (context) {
        return `RequestDuration: ${context.reply.elapsedTime}`;
    }
});

Unfortunately it'll put the duration under the message key in the request, but is great for its simplicity 👍