Go to 'Create an APP' for creating an API key. Click on the link "Request an API Key".
This will turn up two options, whether you want to go for a commercial app or a non-commercial one. Click on the appropriate link according to your intention.
That you will take you to a page where you have to provide them with a name for your app and a short description.
Once you complete, hit Submit and you will be provided with an App Key and Secret. Preserve these properly because you will need these in future while writing your app.
Here you can find Client ID and Secret as shown below you will get Edit app details.
In App settings click on edit and Enter CallBack URL.
Here you can find Client ID and Secret as shown below.
Step 2: Set credentials in miniOrange Social Login Plugin
Copy the Client Id and Client Secret form above setup and Paste them into the fields in Instructions.
Then click on Save & Test Configuration button.
Custom app will set properly when Test configuration get successful