mirror of
https://github.com/rcourtman/Pulse.git
synced 2026-05-19 16:27:37 +00:00
6f2b6268a4
Improve performance when serving /api/state in mock mode by optimizing alert handling and JSON serialization. Changes: - Add UpdateAlertSnapshots() to cache alerts without blocking - Use lazy population of alert snapshots to avoid lock contention - Switch to json.Marshal for better performance with large payloads - Add debug logging to track /api/state performance - Simplify GetState() logic in mock mode Performance improvements: - Eliminates alert manager lock during /api/state requests - Reduces JSON encoding overhead for large mock datasets - Ensures sub-second response times even with 7 nodes and 90+ guests Testing: - Mock mode returns state instantly without blocking - Alert snapshots populate correctly on first request - Debug logs confirm fast execution path
45 lines
1.2 KiB
Go
45 lines
1.2 KiB
Go
package utils
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"time"
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)
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// Float64Ptr returns a pointer to the given float64 value
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func Float64Ptr(v float64) *float64 {
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return &v
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}
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// GenerateID generates a unique ID with the given prefix
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func GenerateID(prefix string) string {
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return fmt.Sprintf("%s-%d", prefix, time.Now().UnixNano())
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}
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// WriteJSONResponse writes a JSON response to the http.ResponseWriter
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func WriteJSONResponse(w http.ResponseWriter, data interface{}) error {
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w.Header().Set("Content-Type", "application/json")
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// Use Marshal instead of Encoder for better performance with large payloads
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jsonData, err := json.Marshal(data)
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if err != nil {
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return err
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}
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_, err = w.Write(jsonData)
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return err
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}
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// WriteJSONError writes a JSON error response to the http.ResponseWriter
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func WriteJSONError(w http.ResponseWriter, message string, code int) {
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(code)
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_ = json.NewEncoder(w).Encode(map[string]string{"error": message})
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}
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// DecodeJSONBody decodes a JSON request body into the given interface
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func DecodeJSONBody(r *http.Request, v interface{}) error {
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if err := json.NewDecoder(r.Body).Decode(v); err != nil {
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return err
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}
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return nil
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}
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