At work we have been expanding the testing coverage of our auth service and have discovered the perfect storm of edge cases around test caching and Go’s test building. In short, we had tests that looked like they were passing locally but would fail sporadically in CI because Go will run the tests inside of a package sequentially but build and test each package in parallel (up to the number of CPU cores).

I had to learn about Go struct embedding the other day and I wanted to document my fix. In my use case I wanted to add some extra information to an API response to include some meta data from kubernetes cluster and/or some extra error information.

At the beginning of the month I left Teem I was Director of Engineering and it was and still is a great company. There are some amazing developers there, so if you are looking for a job in SLC, hit them up. This weekend (Aug 5) I will be moving to Berlin to start a new role at Contiamo and will be working on the Labs feature.

Lucas Roesler

I am senior engineer at and an ex-mathematician. I have worked on web applications, algorithms for image analysis, machine learning problems, and pure math research.

Senior Engineer

Berlin, DE