From a5a8a126e2306f0ba0bfc6b0f7037d646c694ac3 Mon Sep 17 00:00:00 2001
From: Manish R Jain <manish@dgraph.io>
Date: Tue, 17 May 2016 18:12:26 +1000
Subject: [PATCH] Have a flag to forbit mutations on a server. Very useful for
the live demo, or other read-only situations.
---
server/main.go | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/server/main.go b/server/main.go
index 3d399e4c..51db34f9 100644
--- a/server/main.go
+++ b/server/main.go
@@ -56,6 +56,7 @@ var instanceIdx = flag.Uint64("instanceIdx", 0,
"serves only entities whose Fingerprint % numInstance == instanceIdx.")
var workers = flag.String("workers", "",
"Comma separated list of IP addresses of workers")
+var nomutations = flag.Bool("nomutations", false, "Don't allow mutations on this server.")
func addCorsHeaders(w http.ResponseWriter) {
w.Header().Set("Access-Control-Allow-Origin", "*")
@@ -68,6 +69,10 @@ func addCorsHeaders(w http.ResponseWriter) {
}
func mutationHandler(mu *gql.Mutation) error {
+ if *nomutations {
+ return fmt.Errorf("Mutations are forbidden on this server.")
+ }
+
r := strings.NewReader(mu.Set)
scanner := bufio.NewScanner(r)
var nquads []rdf.NQuad
--
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