Create a successful developer Facebook app

Create a successful developer Facebook app

I have a webbased chatbot . I have been trying to create a successful app for it on developer Facebook . But my webhook url keeps getting an error " The URL couldn't be validated. Callback verification failed with the following errors: curl_errno = 56; curl_error = Received HTTP code 502 from proxy after CONNECT; HTTP Status Code = 502; HTTP Message = Failed to resolve host" Am looking for someone to resolve this issue


Must know about chatbot

must know about developer Facebook app

must know how to resolve this webhook issue

Skills Required

Web design chatbot Facebook app Facebook developer


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