Creating a custom LinkedIn OAuth application
The step-by-step instructions below follow LinkedIn's documentation on setting up OAuth 2.0 for a web application.
Create credentials for ngrok
Navigate to the LinkedIn Developer Portal, sign in, click My apps on the top menu, and then click Create app.
On the app page, click the Auth tab and make note of both the Client ID and Client Secret values.
Update your endpoint configuration
Access the ngrok Dashboard, sign in, create or edit an edge, and click OAuth to enable the OAuth configuration.
Select LinkedIn in the Identity Provider selector, and select Use my own OAuth application in the OAuth Application field.
Note: Alternatively, you can select Use an ngrok-managed OAuth application. If so, there is no need to create an application in the LinkedIn developer portal.
Enter the Client ID and Client Secret values you copied previously in the corresponding fields and then click Save to save the edge configuration.
Access your application using the link provided by the Endpoints URL of your edge.