Aleksey Shakhmatov
7a2cef00c3
Eliminates repeated marshal-set-header-write boilerplate in handlers.
WriteError produces consistent {"error": "..."} JSON responses.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
30 lines
728 B
Go
30 lines
728 B
Go
package server
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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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// WriteJSON encodes v as JSON and writes it to w with the given status code.
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// It sets Content-Type to application/json.
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func WriteJSON(w http.ResponseWriter, status int, v any) error {
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b, err := json.Marshal(v)
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if err != nil {
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return err
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}
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(status)
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_, err = w.Write(b)
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return err
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}
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// WriteError writes a JSON error response with the given status code and
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// message. The response body is {"error": "<message>"}.
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func WriteError(w http.ResponseWriter, status int, msg string) error {
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return WriteJSON(w, status, errorBody{Error: msg})
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}
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type errorBody struct {
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Error string `json:"error"`
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}
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