issue #104: Make it configurable command handler request timeout (#105)

* issue #104: Make it configurable command handler request timeout

code/service/src/main/resources/application.conf

@@ -223,8 +223,10 @@ lagompb {
 	# Ask timeout is required to
 	# send commands to the aggregate root and receive response
 	# the unit value is in second
+	# This is is not a gRPC timeout.
+	# This is timeout is required by the entity receiving a command to respond back to the caller.
 	ask-timeout = 5
-	ask-timeout = ${?COS_COMMAND_REPLY_TIMEOUT}
+	ask-timeout = ${?COS_COMMAND_HANDLER_TIMEOUT}
 
 	snapshot-criteria {
 		# number of events to batch persist

readme.md

@@ -102,6 +102,8 @@ docker-compose -f ./docker/docker-compose.yml down -t 0 --remove-orphans
 | COS_WRITE_PROPAGATED_HEADERS | CSV of gRPC headers to propagate to write side handler | <none> |
 | COS_WRITE_PERSISTED_HEADERS | CSV of gRPC headers to persist to journal (experimental) | <none> |
 | COS_JOURNAL_LOGICAL_DELETION | Event deletion is triggered after saving a new snapshot. Old events would be deleted prior to old snapshots being deleted. | false |
+| COS_COMMAND_HANDLER_TIMEOUT | Timeout required for the Aggregate to process command and reply. The value is in seconds. | 5 |
+
 
 ### Read side configurations