from project import payments_pb2
    def protoresponse(request):
        xpo = payments_pb2.Payment.ParseFromString(request)
        returnaddress = xpo.refund_to
        transactions = xpo.transactions
        memo = xpo.memo
    
        xpa = payments_pb2.PaymentACK
        xpa.payment = xpo.SerializeToString()
        xpa.memo = 'success'
        return HttpResponse(xpa.SerializeToString(), content_type="application/octet-stream")

    package payments;
    option java_package = "org.bitcoin.protocols.payments";
    option java_outer_classname = "Protos";
    
    message Output {
            optional uint64 amount = 1 [default = 0];
            required bytes script = 2;
    }
    message PaymentDetails {
            optional string network = 1 [default = "test"];
            repeated Output outputs = 2;
            required uint64 time = 3;
            optional uint64 expires = 4;
            optional string memo = 5;
            optional string payment_url = 6;
            optional bytes merchant_data = 7;
    }
    message PaymentRequest {
            optional uint32 payment_details_version = 1 [default = 1];
            optional string pki_type = 2 [default = "none"];
            optional bytes pki_data = 3;
            required bytes serialized_payment_details = 4;
            optional bytes signature = 5;
    }
    message X509Certificates {
            repeated bytes certificate = 1;
    }
    message Payment {
            optional bytes merchant_data = 1;
            repeated bytes transactions = 2;
            repeated Output refund_to = 3;
            optional string memo = 4;
    }
    message PaymentACK {
            required Payment payment = 1;
            optional string memo = 2;
    }

    def paymentobject(request):
    
        def addr_160(pub):
            h3 = hashlib.sha256(unhexlify(pub))
            return hashlib.new('ripemd160', h3.digest())
    
        x = payments_pb2
    
        btc_address = bc.getnewaddress()
    
        pubkey_hash = bc.validateaddress(btc_address).pubkey
        pubkey_hash160 = addr_160(pubkey_hash).hexdigest()
        hex_script = "76" + "a9" + "14" + pubkey_hash160 + "88" + "ac"
        serialized_script = hex_script.decode("hex")
    
        xpd = x.PaymentDetails()
        xpd.time = int(time())
        xpd.outputs.add(amount = 0, script = serialized_script)
    
        xpr = x.PaymentRequest()
        xpr.serialized_payment_details = xpd.SerializeToString()
    
        return HttpResponse(xpr.SerializeToString(), content_type="application/octet-stream")

    [libprotobuf ERROR google/protobuf/message_lite.cc:123] Can't parse message of type "payments.PaymentRequest" because it is missing required fields: serialized_payment_details