52 lines
987 B
Go
52 lines
987 B
Go
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package api
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import (
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"encoding/json"
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"errors"
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"io/ioutil"
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"net/http"
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)
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// Envelope is the standard JSON response envelope.
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type Envelope struct {
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Data interface{} `json:"data"`
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StatusCode int
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}
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// ParseJSON request body.
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func ParseJSON(r *http.Request, v interface{}) error {
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if r.Header.Get("Content-Type") != "application/json" {
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return errors.New("request Content-Type must be application/json")
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}
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// Parse request body.
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body, err := ioutil.ReadAll(r.Body)
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if err != nil {
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return err
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}
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// Parse params from JSON.
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if err := json.Unmarshal(body, 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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// SendJSON response.
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func SendJSON(w http.ResponseWriter, statusCode int, v interface{}) {
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buf, err := json.Marshal(Envelope{
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Data: v,
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StatusCode: statusCode,
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})
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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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.WriteHeader(statusCode)
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w.Write(buf)
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}
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