# documentation:2.0:authrest
Keywords: documentation,2.0,authrest

# REST

Authentication | Users | Password
--- | --- | ---
✔ | ✔ | ✔

## Presentation

This backend can be used to delegate authentication to some webservices.

## Configuration

In Manager, go in `General Parameters` > `Authentication modules` and choose REST for authentication, users and/or password modules.

Then you just have to set REST URL to provide wanted services:

Module | Parameter
--- | ---
Authentication | Authentication URL
User database | User data URL
Password | Password confirmation URL
Password | Password change URL

## REST Dialog

REST web services just have to respond with a “result” key in a JSON file. Auth/UserDB can add a “info” array to will be copied is session data (without reading “Exported variables”).

Parameter | Query | Response
--- | --- | ---
Authentication URL | JSON file: `{“user”:$user,“password”:$password}` | JSON file: `{“result”:true/false,“info”:{…}}`
User data URL | JSON file: `{“user”:$user}` | JSON file: `{“result”:true/false,“info”:{“uid”:“dwho”,…}}`
Password confirmation URL | JSON file: `{“user”:$user,“password”:$password}` | JSON file: `{“result”:true/false}`
Password change URL | JSON file: `{“user”:$user,“password”:$password}` | JSON file: `{“result”:true/false}`

To have only one call, you can set only REST authentication, set datas in “info” key response and set Null as User Database.