initial commit 2

domain/constants.go

@@ -0,0 +1,15 @@
+package domain
+
+type errorString string
+
+func (err errorString) Error() string {
+	return string(err)
+}
+
+// ErrCacheMiss indicates a cache miss when fetching an item from CacheManager.
+const ErrCacheMiss = errorString("cache miss: key not found")
+
+// Used to log errors with communication and operation of cache implementation
+const LogProblemGettingFromCache = "Getting from cache is not working correctly: %v"
+const LogProblemPuttingToCache = "Putting to cache is not working correctly: %v"
+const LogProblemExpiringCache = "Expiring cache key is not working correctly: %v"