gocrud

Simple CRUD application that exposes an HTTP REST API to store data inside a MongoDB database.

Usage

Configuration

gocrud is configured via command-line flags or environment variables.

Flag	Environment variable	Default	Description
--bind-address	GOCRUD_BIND_ADDRESS	0.0.0.0:8080	Address to serve API on
--mongo-uri	GOCRUD_MONGO_URI	mongodb://localhost:27017	MongoDB URI to use
--mongo-db	GOCRUD_MONGO_DB	gocrud	MongoDB database to use

MongoDB authentication

Authentication can be provided via the MongoDB URI. Example:

GOCRUD_MONGO_URI=mongodb://admin:password@localhost:27017

API

By default, gocrud exposes the following endpoints on port 8080:

• POST /v1/pet Create pet
• GET /v1/pet Get pet

Create pet

Creates a new pet, and returns the ID of the pet created.

POST /v1/pet
Accept: application/json
Content-Type: application/json

{
  "name": "string",
  "species": "string",
  "breed": "string"
}

Responses (click to expand)

• Object successfully created

HTTP/1.1 200 OK
Content-Type: application/json; charset=utf-8

{
  "id": "string"
}

• Invalid request body

HTTP/1.1 400 Bad Request
Content-Type: application/json; charset=utf-8

{
  "error": "string"
}

• Failed to create object in database

HTTP/1.1 500 Internal Server Error
Content-Type: application/json; charset=utf-8

{
  "error": "string"
}

Get pet

Retrieves an existing pet.

GET /v1/pet/:id
Accept: application/json

Parameters:

• :id (path): ID of the pet object, formatted as a 24-character long hexadecimal number.

Responses (click to expand)

• Object successfully retrieved.

HTTP/1.1 200 OK
Content-Type: application/json; charset=utf-8

{
  "id": "string",
  "name": "Grande Hazelnut Mc.Muffin",
  "species": "dog",
  "breed": "Dobermann"
}

• Invalid :id parameter format.

HTTP/1.1 400 Bad Request
Content-Type: application/json; charset=utf-8

{
  "error": "string"
}

• No pet was found with the ID of :id

HTTP/1.1 404 Not Found
Content-Type: application/json; charset=utf-8

{
  "error": "string"
}

• Failed to retrieve object from database.

HTTP/1.1 500 Internal Server Error
Content-Type: application/json; charset=utf-8

{
  "error": "string"
}

Development

Prerequisites

• Go 1.20 (or higher)
• A way to run MongoDB locally, e.g via a container using Podman

Running locally

1. Start up a local MongoDB instance, for example via Podman:

   podman run --rm -it -p 27017:27017 mongo

2. Run gocrud locally, e.g:

   go run .

3. To test out the webhooks, you can make use of our example webhook like so:

   $ curl localhost:8080/v1/pet --json @examples/pet.json
   {"id":"63d00f3a87cb268ed07657e6"}
   
   $ curl localhost:8080/v1/pet/63d00f3a87cb268ed07657e6
   {"id":"63d00f3a87cb268ed07657e6","name":"Grande Hazelnut Mc.Muffin","species":"dog","breed":"Dobermann"}

License

This repository complies with the REUSE recommendations.

Different licenses are used for different files. In general:

• Go code is licensed under GNU General Public License v3.0 or later (LICENSES/GPL-3.0-or-later.txt).
• Documentation licensed under Creative Commons Attribution 4.0 International (LICENSES/CC-BY-4.0.txt).
• Miscellaneous files, e.g .gitignore, are licensed under CC0 1.0 Universal (LICENSES/CC0-1.0.txt).

Please see each file's header or accompanied .license file for specifics.