How to get Paypal Client ID and Secret Key
javascript - Paypal Express checkout not working properly - Stack Overflow
![1. PayPal API Overview - PayPal APIs: Up and Running, 2nd Edition [Book]](https://www.oreilly.com/api/v2/epubs/9781449321666/files/httpatomoreillycomsourceoreillyimages1119404.png "1. PayPal API Overview - PayPal APIs: Up and Running, 2nd Edition [Book]")
1. PayPal API Overview - PayPal APIs: Up and Running, 2nd Edition [Book]
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