Add error message redaction method (#20)

api/utils/error.go

@@ -0,0 +1,13 @@
+package utils
+
+import "regexp"
+
+func redactError(err string) string {
+	switch {
+	case regexp.MustCompile(`(?i)failed[\s]to[\s]connect`).Match([]byte(err)) ||
+		regexp.MustCompile(`(?i)connection[\s]refused`).Match([]byte(err)):
+		return "internal error: could not connect to requisite database service"
+	default:
+		return err
+	}
+}

api/utils/send_response.go

@@ -25,7 +25,7 @@ func SendError(c fiber.Ctx, status int, e error) error {
 	c.Response().Header.SetContentType("application/json")
 	err := c.Status(status).JSON(fiber.Map{
 		"status": status,
-		"error":  e.Error(),
+		"error":  redactError(e.Error()),
 	})
 
 	if err != nil {