payloadLifespan/payloadLifetime and other name variants unified to Time To Live naming.

code/MessengerApi/Handlers/Endpoint/SendEndpointHandler.cs

@@ -32,7 +32,7 @@ namespace MessengerApi.Handlers.Endpoint
             Guid? toUserId,
             string payload,
             string payloadType,
-            int? payloadLifespanInSeconds)
+            int? timeToLiveInSeconds)
         {
             // Authorize.
             var targetRecipientId = toUserId.HasValue
@@ -50,7 +50,7 @@ namespace MessengerApi.Handlers.Endpoint
                 ToId = targetRecipientId,
                 Payload = payload,
                 PayloadType = payloadType,
-                PayloadLifespanInSeconds = payloadLifespanInSeconds ?? (this.configuration.DefaultMessageLifetimeInMinutes * 60)
+                TimeToLiveInSeconds = timeToLiveInSeconds ?? (this.configuration.DefaultMessageTimeToLiveInSeconds)
             };
 
             this.unitOfWork.Messages.Add(message);

code/MessengerApi/Models/Http/SendRequest.cs

@@ -8,6 +8,6 @@
 
         public string PayloadType { get; set; }
 
-        public int? PayloadLifetimeInSeconds { get; set; }
+        public int? TimeToLiveInSeconds { get; set; }
     }
 }

code/MessengerApi/Program.cs

@@ -184,7 +184,7 @@ namespace MessengerApi.Api
             {
                 try
                 {
-                    var response = await handler.SendMessage(request.ToUserId, request.Payload, request.PayloadType, request.PayloadLifetimeInSeconds);
+                    var response = await handler.SendMessage(request.ToUserId, request.Payload, request.PayloadType, request.TimeToLiveInSeconds);
                     await unitOfWork.SaveChanges();
                     return Results.Json(response.Id);
                 }

code/MessengerApi/Properties/launchSettings.json

@@ -10,7 +10,7 @@
             "CORS_ORIGINS": "",
             "PROXIES": "",
             "QUERY_RATE_PER_MINUTE": "100",
-            "DEFAULT_MESSAGE_LIFETIME_IN_MINUTES": "60",
+            "DEFAULT_MESSAGE_TIME_TO_LIVE_IN_SECONDS": "60",
             "HOUSEKEEPING_ENABLED": "False",
             "LOGGING_VERBOSITY": "Trace"
         },