add lookup by id endpoint

flix/v1_1/indexer.go

@@ -70,7 +70,16 @@ func (i *TemplateIndexer) List() []Template {
 	return i.store
 }
 
-func (i *TemplateIndexer) LookupBySource(cadenceSource []byte) (*Template, error) {
+func (i *TemplateIndexer) GetByID(id string) *Template {
+	for _, template := range i.store {
+		if template.ID() == id {
+			return &template
+		}
+	}
+	return nil
+}
+
+func (i *TemplateIndexer) GetBySource(cadenceSource []byte) (*Template, error) {
 	for _, template := range i.store {
 		isMatch, err := template.MatchesSource(cadenceSource)
 		if err != nil {

flix/v1_1/template.go

@@ -55,6 +55,10 @@ func NewFromJson(rawJson []byte) (Template, error) {
 	}, nil
 }
 
+func (t Template) ID() string {
+	return t.parsed.Id
+}
+
 func (t Template) MarshalJSON() ([]byte, error) {
 	return t.raw, nil
 }

server/http.go

@@ -34,7 +34,7 @@ func (s *HttpServer) Setup() {
 				w.WriteHeader(http.StatusBadRequest)
 			}
 
-			match, err := s.Indexer.LookupBySource(cadenceSource)
+			match, err := s.Indexer.GetBySource(cadenceSource)
 			if err != nil {
 				w.WriteHeader(http.StatusInternalServerError)
 			}
@@ -57,6 +57,26 @@ func (s *HttpServer) Setup() {
 			s.Logger.Printf("error writing response: %e", err)
 		}
 	})
+
+	http.HandleFunc("/v1.1/templates/{id}", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Add("Content-Type", "application/json")
+
+		response := s.Indexer.GetByID(r.PathValue("id"))
+		if response == nil {
+			w.WriteHeader(http.StatusNotFound)
+			return
+		}
+
+		jsonResponse, err := json.Marshal(response)
+		if err != nil {
+			s.Logger.Printf("error serializing response: %e", err)
+		}
+
+		_, err = w.Write(jsonResponse)
+		if err != nil {
+			s.Logger.Printf("error writing response: %e", err)
+		}
+	})
 }
 
 func (s *HttpServer) Start() error {