Update 2020-02-03: OpenAPI v3.1 will be using JSON Schema Draft 2019-09, so tooling vendors should get to work on upgrading support for JSON Schema 2019-09 and the other OpenAPI v3.1 changes. This article is going to explain OpenAPI and JSON Schema divergence, which I’ve been calling the
So you want to get into design-first API development. Getting started can seem a little tricky, especially when you have a bunch of old APIs floating around and feature work keeps piling up. Writing out full specs for code that already exists can seem like a challenge, and a lot
These days type systems are all the rage in APIs, and with gRPC and GraphQL fans touting their baked in systems. REST fans have a few options for type systems, but JSON Schema seems to be powering forwards as the primary candidate. JSON Schema is metadata for JSON, which can
Every API in the world is following some sort of paradigm, whether it knows it or not. They will fall under RPC, REST, or a "query language." Even if you are confident you understand the difference, do yourself a favor and read them anyway. About 99% of people
Guest post from Aaron Hedges. JSON Hyper-Schema is a format for describing an API. You can automate a lot with a document that describes your API. * API SDKs * Documentation * Tools such as API sandboxes or Postman collections to simplify the development process * Contract tests to ensure your API doesn’t
A few months ago we released We::Call, a Ruby gem that wraps popular HTTP-client Faraday. We::Call aims to configure Faraday with as many best practices for HTTP communications by default as it reasonably can. It’s come a long way over the last few development versions, most of
We've been talking a lot about documentation and API descriptions recently. About how it’s important to write down your contract using API descriptions, and how to turn these descriptions into beautiful human-readable documentation. Now let’s look at how we can ensure that documentation is actually telling
With JSON:API, HAL, and other compound document formats becoming less necessary thanks to HTTP/2, using these formats is no longer a given. That said, there are plenty of reasons for some teams to continue using JSON:API for the near future: 1. Existing APIs with an underlying codebase
JSON-API has been one of the most popular standards for API development for a while now. It was conceived in 2013, battled through some rather different RC versions (changing drastically as it went), finally stabilizing with v1.0 back in mid-2015. My interest in JSON-API has changed substantially over the
Caching is a huge topic, and there’s a lot of different types of caching. No one type of cache is going to suite all needs and cover everything needed to make a performant application, but one type that’s often overlooked is client caching at the HTTP level. Building
API versioning is a really difficult topic, and sometimes seen as a merely religious debate. It’s done differently at different companies, and different teams within different companies often vary. Some folks move from approach A to approach B, and when approach B solves their specific issues they act like
A question that is asked with increasing regularity in the APIs You Won’t Hate Slack Group is one which has been asked for years, but does not always have a good answer. The question is: What is the different between PUT and PATCH, and when do I use them?