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homebox/backend/pkgs/server/response.go

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package server
import (
"encoding/json"
"net/http"
)
type ErrorResponse struct {
Error string `json:"error"`
Fields map[string]string `json:"fields,omitempty"`
}
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// Respond converts a Go value to JSON and sends it to the client.
// Adapted from https://github.com/ardanlabs/service/tree/master/foundation/web
func Respond(w http.ResponseWriter, statusCode int, data interface{}) error {
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if statusCode == http.StatusNoContent {
w.WriteHeader(statusCode)
return nil
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}
// Convert the response value to JSON.
jsonData, err := json.Marshal(data)
if err != nil {
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panic(err)
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}
// Set the content type and headers once we know marshaling has succeeded.
w.Header().Set("Content-Type", ContentJSON)
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// Write the status code to the response.
w.WriteHeader(statusCode)
// Send the result back to the client.
if _, err := w.Write(jsonData); err != nil {
return err
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}
return nil
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}