Merge pull request #16 from essenciary/patch-1

Example of prepending timestamp to logged messages

Author: oxinabox

README.md

@@ -318,3 +318,26 @@ end
 
 global_logger(transformer_logger)
 ```
+
+## Add timestamp to all logging
+
+```julia
+using Logging, LoggingExtras, Dates 
+
+const date_format = "yyyy-mm-dd HH:MM:SS"
+
+timestamp_logger(logger) = TransformerLogger(logger) do log
+  merge(log, (; message = "$(Dates.format(now(), date_format)) $(log.message)"))
+end
+
+ConsoleLogger(stdout, Logging.Debug) |> timestamp_logger |> global_logger
+```
+
+This will produce output similar to: 
+```julia
+[ Info: 2019-09-20 17:43:54 /es/update 200
+┌ Debug: 2019-09-20 18:03:25 Recompiling stale cache file /.julia/compiled/v1.2/TranslationsController.ji for TranslationsController [top-level]
+└ @ Base loading.jl:1240
+┌ Error: 2019-09-20 17:43:54 ErrorException("SearchLight validation error(s) for Translations.Translation")
+└ @ TranslationsController ~/Dropbox/Projects/LiteCMS/app/resources/translations/TranslationsController.jl:69
+```