Imported github.com/ardanlabs/service as base example project

example-project/internal/mid/logger.go

@@ -0,0 +1,49 @@
+package mid
+
+import (
+	"context"
+	"log"
+	"net/http"
+	"time"
+
+	"geeks-accelerator/oss/saas-starter-kit/example-project/internal/platform/web"
+	"go.opencensus.io/trace"
+)
+
+// Logger writes some information about the request to the logs in the
+// format: TraceID : (200) GET /foo -> IP ADDR (latency)
+func Logger(log *log.Logger) web.Middleware {
+
+	// This is the actual middleware function to be executed.
+	f := func(before web.Handler) web.Handler {
+
+		// Create the handler that will be attached in the middleware chain.
+		h := func(ctx context.Context, w http.ResponseWriter, r *http.Request, params map[string]string) error {
+			ctx, span := trace.StartSpan(ctx, "internal.mid.Logger")
+			defer span.End()
+
+			// If the context is missing this value, request the service
+			// to be shutdown gracefully.
+			v, ok := ctx.Value(web.KeyValues).(*web.Values)
+			if !ok {
+				return web.NewShutdownError("web value missing from context")
+			}
+
+			err := before(ctx, w, r, params)
+
+			log.Printf("%s : (%d) : %s %s -> %s (%s)\n",
+				v.TraceID,
+				v.StatusCode,
+				r.Method, r.URL.Path,
+				r.RemoteAddr, time.Since(v.Now),
+			)
+
+			// Return the error so it can be handled further up the chain.
+			return err
+		}
+
+		return h
+	}
+
+	return f
+}