Skip to content

Latest commit

 

History

History
97 lines (72 loc) · 3.54 KB

implicit.md

File metadata and controls

97 lines (72 loc) · 3.54 KB
Raw
description
Implicit Grant flow. Supported but not recommendted to use

Implicit Grant

{% hint style="warning" %} Implicit flow is not recommended to use since there is a risk of leaking access token without any confirmation it was received by the client. More over, some servers prohibit this flow entirely. Aidbox supports Implicit Grant flow but we don't enjoy it very much.

It is better to switch to Authorization Code Grant with PKCE extension instead {% endhint %}

Implicit Grant flow is an alternative for Authorization Code flow. This flow just receives access_token in query string fragment instead of obtaining securecode. It's indented for client-side apps use in order to access an API, typically as Web SPA applications. For more detailed information, read OAuth 2.0 specification.

Basic scheme

Easy way

The easiest way to test Implicit Grant flow is to run through the Aidbox Sandbox UI (Auth -> Sandbox -> Implicit).

Sandbox UI

Authorization Endpoint

GET [base]/auth/authorize

Obtaining access token

Query Parameters

Name Type Description
state string a value used by the client to maintain state between the request and callback
scope string scope of the access request
redirect_uri string client redirect URI
client_id string client ID
response_type string

value MUST be set to

token

{% tabs %} {% tab title="302 Redirect" %}

[redirect_uri]#access_token=YzI3ZjQ1M2MtYzFlYi00ZjI3LWI2MzgtOTQ0MWI0ZmIzZjBi&state=eyJoYXNoIjoiIy9pbXBsaWNpdC9iYXNpYyIsImZvcm0tZGF0YSI6eyJ0eXBlIjoiYmFzaWMiLCJiYXNpYyI6eyJjbGllbnQtaWQiOiJpbXAtY2xpZW50In19LCJmb3JtLXBhdGgiOiJpbXBsaWNpdC1wYWdlIn0%3D

{% endtab %} {% endtabs %}

After this request, the resource owner (user) will be redirected to Log-in/Sign-up page.

Example

Next step is granting access to the client:

Example

After granting access the user is redirected to the redirect_uri from the client configuration with access_token in query string fragment.

Example

{% tabs %} {% tab title="Create client" %}

POST /Client
Accept: text/yaml
Content-Type: text/yaml

id: imp-client
resourceType: Client
grant_types:
- implicit
auth:
  implicit:
    redirect_uri: http://localhost:3449/auth.html

{% endtab %} {% endtabs %}

{% tabs %} {% tab title="Request access token" %}

curl -X GET \
  'http://localhost:8081/auth/authorize?
        state=example
        &client_id=imp-client
        &redirect_uri=http%3A%2F%2Flocalhost%3A3449%2Fauth.html
        &response_type=token'

{% endtab %}

{% tab title="Response" %}

HTTP/1.1 302 Found

Location: http://localhost:3449/auth.html#access_token=ZGE0ZmQzZTYtOGU0OC00MDJhLWFkN2ItZTg5ZmViYjdmNTQ2
&state=example

{% endtab %} {% endtabs %}