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CRITICAL: Routing fix for mutations in case of the R/W replicas

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Lukasz Raczylo
2025-11-18 16:27:19 +00:00
parent 9fbee0d9a1
commit 9dd8c11363
1 changed files with 9 additions and 8 deletions
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graphql.go
+9 -8
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@@ -364,14 +364,6 @@ func parseGraphQLQuery(c *fiber.Ctx) *parseGraphQLQueryResult {
}
}
// Handle endpoint routing - always use write endpoint for mutations
if res.operationType == "mutation" {
res.activeEndpoint = cfg.Server.HostGraphQL
} else if cfg.Server.HostGraphQLReadOnly != "" {
// Use read-only endpoint for non-mutation operations
res.activeEndpoint = cfg.Server.HostGraphQLReadOnly
}
// Block mutations in read-only mode
if res.operationType == "mutation" && cfg.Server.ReadOnlyMode {
if ifNotInTest() {
@@ -394,6 +386,15 @@ func parseGraphQLQuery(c *fiber.Ctx) *parseGraphQLQueryResult {
}
}
// Handle endpoint routing AFTER processing all definitions
// This ensures mutations are always routed to the write endpoint
if res.operationType == "mutation" {
res.activeEndpoint = cfg.Server.HostGraphQL
} else if cfg.Server.HostGraphQLReadOnly != "" {
// Use read-only endpoint for non-mutation operations
res.activeEndpoint = cfg.Server.HostGraphQLReadOnly
}
// Track parsing time
if ifNotInTest() && cfg.Monitoring != nil {
parseTime := float64(time.Since(startTime).Milliseconds())