I want to host my backend on Google Cloud and use
App Engine + datastore as backend. The AppEngine endpoint
would be called with IPv6/IPv4 https POST request.
Currently I have an App on iOS AppStore working as follows:
1) user taps on the map
2) location data is transmitted to my Golang server.
3) data related to location is retrieved from database
4) response is received in the App
I add certificates and my Golang handler is follows:
========
configTc := &tls.Config{
Rand: rand.Reader,
Certificates: []tls.Certificate{certTc},
MinVersion: tls.VersionTLS12,
PreferServerCipherSuites: true,
CipherSuites: []uint16{
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, // requiredCipher for hhtp/2
tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
tls.TLS_RSA_WITH_AES_256_CBC_SHA,
},
CurvePreferences: []tls.CurveID{tls.CurveP521, tls.CurveP384,
tls.CurveP256},
srvTc := &http.Server{Addr: addrTc + ":8083", TLSConfig:
configTc,
ln4Tc, errTc := net.Listen("tcp4", ":8083")
defer ln4Tc.Close()
if errTc != nil {
fmt.Printf("\n Error:net.Listen(tcp4): %s", errTc)
}
tlsListener4Tc :=
tls.NewListener(tcpKeepAliveListener{ln4Tc.(*net.TCPListener)}, configTc)
go func() {
srvTc.Serve(tlsListener4Tc)
}()
tlsListener6Tc :=
tls.NewListener(tcpKeepAliveListener{ln6Tc.(*net.TCPListener)}, configTc)
srvTc.Serve(tlsListener6Tc)
========
What I should do to have the same functionality in AppEngine?
Passing Apple requirements was monumental task and I want to be sure
the new version of the app will pass smoothly.
I attached custom domain to my AppEngine app and as I see
https is from Let's Encrypt. I suppose auto renewals are done
automatically from Google.
Number one requirement is IPv6/IPv4 support on https.
Can App Engine handle this task smoothly? I suppose there are already apps
on iOS App Store using AppEngine.
Best,
--Constantine
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