38 lines
1.1 KiB
Go
38 lines
1.1 KiB
Go
// Package httpx holds small HTTP helpers shared by middleware and handlers.
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package httpx
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import (
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"encoding/json"
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"net/http"
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)
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// Problem is an RFC 9457 problem details body.
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type Problem struct {
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Type string `json:"type,omitempty" validate:"optional"`
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Status int `json:"status"`
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Title string `json:"title"`
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Detail string `json:"detail,omitempty" validate:"optional"`
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Instance string `json:"instance,omitempty" validate:"optional"`
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RequestID string `json:"requestId,omitempty" validate:"optional"`
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}
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// WriteProblem writes a problem+json error response.
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func WriteProblem(
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w http.ResponseWriter, r *http.Request, status int, detail string,
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) {
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problem := Problem{
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Type: "about:blank",
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Title: http.StatusText(status),
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Status: status,
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Detail: detail,
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}
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if r != nil {
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problem.RequestID = RequestID(r.Context())
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}
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w.Header().Set("Content-Type", "application/problem+json")
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w.Header().Set("X-Content-Type-Options", "nosniff")
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w.WriteHeader(status)
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json.NewEncoder(w).Encode(problem) //nolint:errcheck,gosec // the client may have gone
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}
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