added logger

src/framework/logger/logger.ts

@@ -0,0 +1,40 @@
+import winston, { format, transports, transport as Transport, Logger } from "winston";
+import { Format } from "logform";
+
+const { combine, timestamp, label, printf, errors, splat } = format;
+
+// Custom logging format
+const customFormat = printf(({ level, message, label, timestamp, stack }) => {
+  return `${timestamp} [${label || "-"}] ${level}: ${message} ${stack || ""}`;
+});
+
+// Custom combined logging format:
+const customCombinedFormat = (module: string): Format =>
+  combine(
+    errors({ stack: true }),
+    format.colorize({ level: true }),
+    label({ label: module }),
+    timestamp(),
+    splat(),
+    customFormat
+  );
+
+// Custom transports:
+const customTransports = (): Transport[] => [new transports.Console()];
+
+// Container to provide different pre-configured loggers
+const logContainer = new winston.Container();
+
+// Default logger for modules:
+const getLogger = (module: string): Logger => {
+  if (!logContainer.has(module)) {
+    logContainer.add(module, {
+      format: customCombinedFormat(module),
+      transports: customTransports()
+    });
+  }
+  return logContainer.get(module);
+};
+
+export default getLogger;
+export const defaultLogger =  getLogger("default");