Describing JSON Patch operations with OpenAPI (2 mins read).
How to describe your JSON Patch endpoints using OpenAPI.
Blog posts from May 2022
Weirdness with git diff-index showing 1 file changed, 0 insertions(+), 0 deletions(-) (1 mins read).
Something weird I hit last week with git diff-index, which shows 1 file changed, but no changes.
Introducing a library for OpenAPI contract testing with Go's net/http package (2 mins read).
Creating a Go library that can verify net/http handlers implement an OpenAPI contract, for use with testing.
Testing Go net/http handlers (1 mins read).
How to write unit tests to validate an HTTP handler.
by 
Jamie Tanna
.
#blogumentation
#go.
Constructing a serialised YAML string in Ruby (1 mins read).
How to convert a YAML document to a string representation, preserving escaped newlines, with Ruby.
Lessons learned from modernising a lesser maintained (Spring Boot) service (16 mins read).
What I learned from taking ownership of a lesser maintained service and bringing it up to a better standard.
by Jamie Tanna
.
#blogumentation
#spring-boot
#supportability
#incident-management
#production
#capital-one
#technical-leadership.
Getting the OpenID Connect thumbprint for AWS on the command-line with Go (2 mins read).
How to automagically retrieve an OpenID Connect thumbprint for use with AWS' OpenID Connect federated identity.
by Jamie Tanna
.
#blogumentation
#go
#certificates
#aws
#oidc.
Getting the fingerprint of a certificate in Go (1 mins read).
How to retrieve an X.509 thumbprint from a remote server, in Go.
Setting up a Go package structure for a combined library and CLI tool (2 mins read).
How to structure a Go repository to be both a library and command-line tool(s).
by Jamie Tanna
.
#blogumentation
#go.
Parsing AWS ALB/ELB access logs into SQLite (2 mins read).
How to take a set of ALB/ELB logs and convert them to an SQLite database for further processing.
When should I use env to start a command with environment variables? (2 mins read).
When you should use the env command to specify environment variables when executing a command on the command-line (TL;DR: always).
Should I commit generated Go code? (1 mins read).
Answering whether go:generated code should be committed (TL;DR is yes).
by Jamie Tanna
.
#blogumentation
#go.
Lessons learned from the recent job hunt (13 mins read).
A recap of the recent interview process with several companies, what I learned, and what others should know.
by Jamie Tanna
.
#job
#interviewing
#recruitment
#monzo
#starling
#gitpod
#deliveroo
#atom-bank
#compensation
#negotiation
#gov.uk
#cddo.
Installing Nokogiri on an M1 Mac (1 mins read).
How to get Nokogiri building on an M1 Mac, when using Bundler.
by Jamie Tanna
.
#blogumentation
#mac
#ruby.