When comparing Go relax vs Buffalo, the Slant community recommends Buffalo for most people. In the question“What are the best web frameworks for Go?” Buffalo is ranked 6th while Go relax is ranked 18th. The most important reason people chose Buffalo is:
The dev command will watch your .go and .html files and the asset folder by default. It will rebuild and restart your binary for you automatically so you don't have to worry about such things. Just run the buffalo dev command and go to localhost:3000/ to see all changes live!
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Pros
Pro Good for building REST APIs
Go Relax is a pretty minimalistic framework. Only the most essential features and libraries are included. Making it a great framework for developing high-performance REST APIs.
Pro Hot reloading
The dev command will watch your .go and .html files and the asset folder by default. It will rebuild and restart your binary for you automatically so you don't have to worry about such things.
Just run the buffalo dev command and go to localhost:3000/ to see all changes live!
Pro CLI project scaffolding
Buffalo aims to make building new web applications in Go as quick and simple as possible. buffalo new coke
That will generate a whole new Buffalo application that is ready to go. It'll even run go get for you to make sure you have all of the necessary dependencies needed to run your application.
Pro Database migration
Easily migrate database.
Pro Full web and api only generator for those not looking for full web templating
Pro Multi step Dockerfile included with scratch base for minimal size
Pro Embeded resources in binary for easy reference
Pro Great community channel when help is needed
Cons
Con Might not be suitable for large backend applications
Go Relax is great for building a REST API for the backend if you want to develop a SPA using a frontend framework for example. But for anything that requires more features on the server side, it would be better to use a more "batteries included" framework.