Top 4 Go openapi-generator Projects

ogen

10 1,072 9.5 Go

OpenAPI v3 code generator for go

Project mention: I write HTTP services in Go after 13 years (Mat Ryer, 2024) | news.ycombinator.com | 2024-02-09

https://github.com/ogen-go/ogen
Write openapi definition, it'll do routing, definition of structs, validation of JSON schemas, etc.
All I need to do is implement the service.
Validating an integer range for a querystring parameter is just too boring. And too easy to mistype when writing it manually.
Anyways, so far only been playing, so haven't found the bad parts yet.

speakeasy

7 139 9.8 Go

Speakeasy CLI - Enterprise developer experience for your API (by speakeasy-api)

Project mention: Generating Code Without Generating Technical Debt? | news.ycombinator.com | 2023-11-10

I’ve built conviction that code generation only gets useful in the long term when it is entirely deterministic, or filtered through humans. Otherwise it is almost always technical debt. Hence LLM code generation products are a cool toy, but no sensible teams will use them without an amazing “Day 2” workflow.
As an example, in my day job (https://speakeasyapi.dev), we sell code generation products using the OpenAPI specification to generate downstream artefacts (language SDKs, terraform providers, markdown documentation). The determinism makes it useful — API updates propagate continuously from server code, to specifications, then to the SDKs / providers / docs site. There are no breaking changes because the pipeline is deterministic and humans are in control of the API at the start. The code generation itself is just a means to an end : removing boilerplate effort and language differences by driving it from a source of truth (server api routes/types). Continuously generated, it is not debt.
We’ve put a lot of effort into trying to make an LLM agent useful in this context. However giving them control of generated code directly means it’s hard to keep the “no breaking changes”, and “consistency” restrictions that’s needed to make code generation useful.
The trick we’ve landed on to get utility out of an LLM in a code generation task, is to restrict it to manipulating a strictly typed interface document, such that it can only do non-breaking things to code (e.g. adjust comments / descriptions / examples) by making changes through this interface.

WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
openapi-generator-go

1 94 7.3 Go

An opinionated OpenAPI v3 code generator for Go. Use this to generate API models and router scaffolding.
go-oas3

1 20 4.8 Go

Open API v3 server code generator

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).