Is HMAC required when using TLS communication?

Published: 10/07/2019
Is HMAC required when using TLS communication?
Source: SECURITY.STACKEXCHANGE.COM

We have SSL communication between our mobile app and our servers. The request from mobile is creating a hash on all the request fields - based on a secret key which is "stored" on the app. So it sends json with all the fields data, plus a signature value which is : hash = hashBasedOnKey ( all request data fields) Later, the server does the same thing. It reads the fields and run hash on those fi

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