---
title: "APISnapshot built on Elm & Rails is open source"
description: "APISnapshot built using Elm and Ruby on Rails is open source"
canonical_url: "https://www.bigbinary.com/blog/apisnapshot-built-using-elm-and-ruby-on-rails-is-open-source"
markdown_url: "https://www.bigbinary.com/blog/apisnapshot-built-using-elm-and-ruby-on-rails-is-open-source.md"
---

# APISnapshot built on Elm & Rails is open source

APISnapshot built using Elm and Ruby on Rails is open source

- Author: Neeraj Singh
- Published: May 25, 2018
- Categories: Misc

APISnapshot (Link not available) is built using Elm and Ruby on Rails. Today
we’re happy to announce that the code is publicly
[available on GitHub](https://github.com/bigbinary/apisnapshot).

We built APISnapshot for two reasons.

We wanted to work with [Elm](http://elm-lang.org).

We wanted to have a tool that is easy to use and that will help us capture what
response we are getting from the API in a format that is easy to share in github
issue, in slack or in an email. As a consulting company we work with various
teams around the world and during development phase either API is unstable or
they do not do what they should be doing.

We originally built this tool using [React](https://reactjs.org). Elm compiler
is quite strict and forced us to take into consideration all possibilities. This
lead us to notice a few bugs which were still present in React code. In this way
Elm compiler helped us produce "correct" software by eliminating some of the
bugs that we would have found later.

JSON encoding/decoding is a hard problem in Elm in general. In most of the cases
we know the shape of the API response we are going to get.

In the case of APISnapshot we do not know the shape of the JSON response we will
get. Because of that it took us a bit longer to build the application. However,
this forced us to really dig deep into JSON encoding/decoding issue in Elm and
we learned a lot.

We would like to thank all the
[contributors](https://github.com/bigbinary/apisnapshot/graphs/contributors) to
the project. Special shout out goes to [Jasim](https://github.com/jasim) for the
discussion and the initial work on parsing the JSON file.

We like the combination of Elm and Ruby on Rails so much so that we are building
[AceHelp](https://www.acehelp.com) using the same technologies. AceHelp is
[open source](https://github.com/bigbinary/acehelp) from day one.

## Links

- [Human page](https://www.bigbinary.com/blog/apisnapshot-built-using-elm-and-ruby-on-rails-is-open-source)