---
layout: default
title: OAuth
permalink: /oauth
nav_order: 9
---

## OAuth
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An open standard for token-based authentication and authorization on the Internet.

Gancio supports OAuth 2.0, an authorization framework described in [RFC 6749](https://tools.ietf.org/html/rfc6749) that allows third-party applications to obtain limited access to an HTTP service on behalf of a resource owner, through the use of a standardized authorization flow that generates a client access token to be used with HTTP requests.

To obtain an OAuth token for a Gancio instance, make sure that you allow your users to specify the domain they want to connect to before login. Use that domain to [acquire a client id/secret](#create-client) and then proceed with normal OAuth 2.

## Create client
Create a new application to obtain OAuth2 credentials.

POST
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`/api/client`


#### Request parameters

| client_name | `string` | A name for your application |
| redirect_uri | `string` | Where the user should be redirected after authorization |
| scopes | `string` | Space separated list of scopes. If none is provided, defaults to `write` as it's the only supported scope!|
| website | `string` | A URL to the homepage of your app |

#### Example
```bash
curl -X POST \
        -d 'client_name=Wordpress Event Manager' \
        -d 'redirect_uri=https://noblogs.org/' \
        -d 'website=https://myapp.example' \
        http://localhost:13120/api/client
```

#### Returns
Application, with `client_id` and `client_secret`

```json
{
   "name" : "Wordpress Event Manager",
   "scopes" : "write",
   "website" : "https://myapp.example",
   "client_secret" : "909029fa12797e6bdfb5baf5e379675dfa4e3ad4",
   "redirect_uri" : "https://noblogs.org",
   "client_id" : "0f377e34b2aaf517f7db534f32d26b0dd938fb6d"
}
```

#### List of scopes
- `write`  
Grant access to add/update events.

## Authorize a user
Displays an authorization form to the user. If approved, it will create and return an authorization code, then redirect to the desired `redirect_uri`. 
The authorization code can be used while requesting a token to obtain access to user-level methods.

GET
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`/authorize`

#### Request parameters

| response_type | `string` | Should be set equal to `code` |
| redirect_uri | `string` | Where the user should be redirected after authorization |
| scope | `string` | Should be `write`|
| client_id | `string` | Client ID, obtained during app registration. |