Show HN: Self-hosted API for CRUD-ing JSON data

#1

Post by tiemster » Thu, Oct 02, 2025, 6:12 PM UTC

Self-hosted API for CRUD-ing JSON data in GO. No setup required. Perfect for quick data storage tasks (or e.g. mocking an API).

The API is based on your JSON structure. So the example below is for CRUD-ing [key1][key2] in file.json. The value (which can be anything) is then added to the body of the request. Moreover, there are helper functions for appending and incrementing values.

  DELETE/PUT/GET: /api/file/key1/key2/...

Show HN: Self-hosted API for CRUD-ing JSON data
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Re: Show HN: Self-hosted API for CRUD-ing JSON data

#2

Post by tiempie » Thu, Oct 02, 2025, 6:16 PM UTC

Nice. So sending {"username": "tom"} to /api/test/users will create > test.json with {"users": {"username": "tom"}} ?

Re: Show HN: Self-hosted API for CRUD-ing JSON data

#3

Post by tiemster » Thu, Oct 02, 2025, 6:19 PM UTC

tiempie wrote: post #2

Nice. So sending {"username": "tom"} to /api/test/users will create > test.json with {"users": {"username": "tom"}} ?

Yes! And you can use "append" mode for use cases like these also. Then the value will be added as a list object. So:

  {users: [{"username": "tom"}, {"username": "tim"}]}