Simple pattern for using a json file as a database assuming you don't have too many users or too much data.

Blog Post: Using a JSON File as a Database Safely in Go

Build

go get
go build

Run

./jsondb-go

Usage

$ curl -i -H "Content-Type: application/json" -X POST localhost:8080/todo -d '{"value": "Hello World"}'
HTTP/1.1 201 Created
Content-Type: application/json
Date: Sat, 13 Dec 2014 00:11:24 GMT
Content-Length: 68

{"id":"5473fc07-314b-4bff-8321-adfdee6decfb","value":"Hello World"}

$ curl -i -H "Content-Type: application/json" -X POST localhost:8080/todo -d '{"value": "Hello World2"}'
HTTP/1.1 201 Created
Content-Type: application/json
Date: Sat, 13 Dec 2014 00:11:35 GMT
Content-Length: 69

{"id":"3e39df85-9851-4ce9-af0c-0dd831e3b970","value":"Hello World2"}

$ curl -i -H "Content-Type: application/json" localhost:8080/todo
HTTP/1.1 200 OK
Content-Type: application/json
Date: Sat, 13 Dec 2014 00:11:48 GMT
Content-Length: 139

[{"id":"3e39df85-9851-4ce9-af0c-0dd831e3b970","value":"Hello World2"},{"id":"5473fc07-314b-4bff-8321-adfdee6decfb","value":"Hello World"}]

$ curl -i -H "Content-Type: application/json" localhost:8080/todo/5473fc07-314b-4bff-8321-adfdee6decfb
HTTP/1.1 200 OK
Content-Type: application/json
Date: Sat, 13 Dec 2014 00:12:03 GMT
Content-Length: 68

{"id":"5473fc07-314b-4bff-8321-adfdee6decfb","value":"Hello World"}

$ curl -i -H "Content-Type: application/json" -X DELETE localhost:8080/todo/5473fc07-314b-4bff-8321-adfdee6decfb
HTTP/1.1 204 No Content
Content-Type: application/json
Date: Sat, 13 Dec 2014 00:12:32 GMT

$ curl -i -H "Content-Type: application/json" -X PUT localhost:8080/todo/3e39df85-9851-4ce9-af0c-0dd831e3b970 -d '{"value": "Foo"}'
HTTP/1.1 200 OK
Content-Type: application/json
Date: Sat, 13 Dec 2014 00:13:07 GMT
Content-Length: 66

{"id":"3e39df85-9851-4ce9-af0c-0dd831e3b970","value":"Foo"}