Obtaining an access token

When a user wants to allow an app to connect to their Lucid account, use the following flow:

Step 1

Direct the user to the appropriate authorization url in a browser with the following URL query parameters appended in order to grant access:

Parameter	Description	Required
client_id	The client ID obtained during App registration	Yes
redirect_uri	One of the redirect URIs registered for the app during App registration	Yes
scope	The scopes the app is requesting access to	Yes
state	Can be any value. Will be included in the redirect back to the app once authorization is completed	No

📘

Login Redirect

If the user has not yet logged into Lucid, the redirect will first take them to a login page, and then display the grant access page.

Authorization URL

https://lucid.app/oauth2/authorize
    ?client_id=rd0q2geEEHcDvZNpYmYAXBH5eCHYD8x0sCwVyncf
    &redirect_uri=https://lucid.app/oauth2/clients/rd0q2geEEHcDvZNpYmYAXBH5eCHYD8x0sCwVyncf/redirect
    &scope=lucidchart.document.content%20offline_access%20user.profile

Step 2

Once the user grants access, they will be redirected to the URI provided in redirect_uri with a code query parameter. The code parameter contains a short-lived (5 minutes) authorization code that will be used to obtain an access token.

• If using an API tool like Postman, you can use the Test Redirect Uri to retrieve the code manually while developing your integration.

Granted Authorization Response

https://lucid.app/oauth2//clients/rd0q2geEEHcDvZNpYmYAXBH5eCHYD8x0sCwVyncf/redirect
    ?code=vtpL4oKCv3LSJ8C78FohTYN9uJUUkkZ4mQDYBucl094r

Step 3

Make a POST request to https://api.lucid.co/oauth2/token with a Create Access Token body containing the code provided.

Token Request

curl 'https://api.lucid.co/oauth2/token' \
     --request 'POST' \
     --header 'Content-Type: application/json' \
     --data-raw '{
         "code": "vtpL4oKCv3LSJ8C78FohTYN9uJUUkkZ4mQDYBucl094r",
         "client_id": "rd0q2geEEHcDvZNpYmYAXBH5eCHYD8x0sCwVyncf",
         "client_secret": "x678fc0SyuAbyleYq8MMtpxZMD7y4WFpPuf5a",
         "grant_type": "authorization_code",
         "redirect_uri": "https://lucid.app/oauth2/clients/rd0q2geEEHcDvZNpYmYAXBH5eCHYD8x0sCwVyncf/redirect"
     }'

Step 4

The response will be an OAuth2 Token.

Token Response

HTTP/1.1 200 OK
Content-Type: application/json

{
    "access_token": "oauth2-N2QyNWE3NmViMTg4NzAyMTM5ODYzNDAzZWE5NGVhNzQ0OGUzZTc2N...",
    "refresh_token": "oauth2-ZjU3OGVmMmVmZTEzMDI1OWU4M2M2MTI4ZjY2OWEwZDdhODE3NWVjZ...",
    "user_id": 1268,
    "client_id": "rd0q2geEEHcDvZNpYmYAXBH5eCHYD8x0sCwVyncf",
    "expires_in": 3600,
    "expires": 1633107891024,
    "scopes":[
        "lucidchart.document.app",
        "offline_access"
    ],
    "token_type": "bearer"
}