Merge branch '27330-update-id'

fred_api/messenger/email.proto

@@ -5,7 +5,13 @@ import "google/protobuf/timestamp.proto";
 
 package Fred.Messenger.Api.Email;
 
-message Uuid
+/*
+Unique identifier
+
+Because of database partitioning, messages can't be identified simply by an UUID.
+An implementation-specific identifier is used instead.
+*/
+message Uid
 {
     string value = 1;
 }
@@ -49,7 +55,8 @@ Complete email message and its metadata
 */
 message EmailEnvelope
 {
-    Uuid uuid = 1;
+    // Email message unique identifier
+    Uid uid = 1;
     google.protobuf.Timestamp create_datetime = 2;
     google.protobuf.Timestamp send_datetime = 3;
     google.protobuf.Timestamp delivery_datetime = 4;

fred_api/messenger/service_email_grpc.proto

@@ -19,14 +19,15 @@ message SendEmailReply
     Data data = 1;
     message Data
     {
-        Uuid uuid = 1;
+        // Email message unique identifier
+        Uid uid = 1;
     }
 }
 
 message GetEmailRequest
 {
-    // Email message UUID
-    Uuid uuid = 1;
+    // Email message unique identifier
+    Uid uid = 1;
 }
 
 message GetEmailReply