Merge pull request #554 from solo-io/jbohanon/json-snapshots

implement json.Marshaler in snapshot templates

changelog/v0.35.1/json-apisnapshot.yaml

@@ -0,0 +1,6 @@
+changelog:
+- type: NEW_FEATURE
+  issueLink: https://github.com/solo-io/gloo/issues/6494
+  resolvesIssue: false
+  description: >-
+    Added code to template for ApiSnapshot that implements JsonMarshaler

pkg/code-generator/codegen/templates/snapshot_template.go

@@ -4,13 +4,16 @@ import (
 	"text/template"
 )
 
+const backtick = "`"
+
 var ResourceGroupSnapshotTemplate = template.Must(template.New("resource_group_snapshot").Funcs(Funcs).Parse(
 	`package {{ .Project.ProjectConfig.Version }}
 
 {{/* creating a variable that lets us understand how many resources are hashable input resources. */}}
 
 import (
 	"encoding/binary"
+	"encoding/json"
 	"fmt"
 	"hash"
 	"hash/fnv"
@@ -24,9 +27,11 @@ import (
 	"go.uber.org/zap"
 )
 
+var _ json.Marshaler = new({{ .GoName }}Snapshot)
+
 type {{ .GoName }}Snapshot struct {
 {{- range .Resources}}
-	{{ upper_camel .PluralName }} {{ .ImportPrefix }}{{ .Name }}List
+	{{ upper_camel .PluralName }} {{ .ImportPrefix }}{{ .Name }}List ` + backtick + `json:"{{ lower_camel .PluralName }}"` + backtick + `
 {{- end}}
 }
 
@@ -83,6 +88,10 @@ func (s {{ .GoName }}Snapshot) HashFields() []zap.Field {
 	return append(fields, zap.Uint64("snapshotHash",  snapshotHash))
 }
 
+func (s {{ .GoName }}Snapshot) MarshalJSON() ([]byte, error) {
+    return json.Marshal(&s)
+}
+
 func (s *{{ .GoName }}Snapshot) GetResourcesList(resource resources.Resource) (resources.ResourceList, error) {
 	switch resource.(type) {
 {{- range .Resources }}