Logging is one of the things that’s extremely important to do well, especially in the (micro)services and functions world where you have to track what’s happening across hundreds of services and functions.

In this post, I’ll briefly look at how to collect logs from your Fn functions and send them to an external log aggregator (in our case, this will be Papertrail).

Prerequisites

· Fn CLI

· Fn Server (you can use fn start command to bring up a local server)

Create a Simple Go Function

Start by creating a new function with the Fn CLI (fn init –runtime go myfunc). I have added two log statements — hello and goodbye — to the function as shown below:

Boilerplate Fn function with two logging statements added

Let’s deploy and call this function like this: Read the complete article here.

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