Add error handler middleware

app/error_handler.go

@@ -0,0 +1,21 @@
+package app
+
+import (
+	"github.com/fatih/color"
+	"github.com/gin-gonic/gin"
+)
+
+// ErrorHandler is a middleware for gin that takes care of calls to c.Error().
+func ErrorHandler() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		c.Next()
+		errs := c.Errors.Errors()
+		if len(errs) != 0 {
+			color.Red("!!! ERRORS OCCURRED !!!")
+			color.Red("==> %s %s", c.Request.Method, c.Request.URL.Path)
+			for _, err := range errs {
+				color.Red("===> %s", err)
+			}
+		}
+	}
+}

app/start.go

@@ -12,7 +12,7 @@ import (
 // Start begins taking HTTP connections.
 func Start(conf common.Conf, db *sql.DB) {
 	r := gin.Default()
-	r.Use(gzip.Gzip(gzip.DefaultCompression))
+	r.Use(gzip.Gzip(gzip.DefaultCompression), ErrorHandler())
 
 	api := r.Group("/api")
 	{