ITWorx Pulse release export
bd774932d5
Public source validation / validate (push) Failing after 3m8s
34 lines
1.0 KiB
Go
34 lines
1.0 KiB
Go
package metricsapi
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import (
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"encoding/json"
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"net/http"
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"github.com/itworx/pulse/internal/auth"
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"github.com/itworx/pulse/internal/metriccatalog"
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"github.com/itworx/pulse/internal/problem"
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)
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type Handler struct{ Registry metriccatalog.Registry }
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func (h Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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if r.Method != http.MethodGet || r.URL.Path != "/api/v1/metrics/catalog" {
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http.NotFound(w, r)
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return
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}
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if _, ok := auth.PrincipalFromContext(r.Context()); !ok {
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problem.Write(w, r, http.StatusUnauthorized, "UNAUTHORIZED", "Authentication required", "Authentication is required to read the metric catalog.", nil)
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return
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}
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w.Header().Set("Content-Type", "application/json")
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w.Header().Set("Cache-Control", "private, max-age=60")
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w.Header().Set("ETag", `"`+h.Registry.Version()+`"`)
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if r.Header.Get("If-None-Match") == `"`+h.Registry.Version()+`"` {
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w.WriteHeader(http.StatusNotModified)
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return
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}
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if err := json.NewEncoder(w).Encode(h.Registry.Response()); err != nil {
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return
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}
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}
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