Backend-Script needed: MetaMask / OpenSeaAPI + Script to AutoClaim (Javascript, WEB3, )

Job ID: 34512420

Budget: $30 – $250 USD

Hi together,

i have a frontend + script which is sending already a POST request to a NOT existing backend.

And i need the backend which needs the following requirements:
- setting-file (with Caller-wallet") = already there
- script + modules --> NEEDED

The script should:
1) receive the POST (message with payload = screenshot 1) from frontend and
2) should do something (="accept" and autoclaim) the request.
- The request will be accepted by the Caller-Wallet which is defined in the backend.
3) Send an "accept"-answer back to frontend.
4) Frontend should show then following screen in metamask: fulfillAdvancedOrder screen (screenshot 2 = dark screen).
5) finished

Feel free to contact me...