Some tips in Alipay development process

My computer develop environment

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$ sw_vers 
ProductName: Mac OS X
ProductVersion: 10.12.6

About the PublicKey

In the pay notify callback, signature verification uses the Alipay public key, not the merchant application public key

Pay notify signature check failed

You should check the merchant public and private key is correct by the official tools
https://tech.open.alipay.com/support/knowledge/index.htm?knowledgeId=201602111105&categoryId=20069#/?_k=455b9g

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