0e2f1fe3f5
* QueryMetricsV2: Stream response Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com> * API: Use jsoniter instead of standard JSON package Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>
110 lines
2.1 KiB
Go
110 lines
2.1 KiB
Go
package api
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import (
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"encoding/json"
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"net/http"
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"github.com/grafana/grafana/pkg/models"
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"github.com/grafana/grafana/pkg/setting"
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"gopkg.in/macaron.v1"
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)
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var (
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ServerError = func(err error) Response {
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return Error(500, "Server error", err)
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}
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)
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func Wrap(action interface{}) macaron.Handler {
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return func(c *models.ReqContext) {
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var res Response
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val, err := c.Invoke(action)
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if err == nil && val != nil && len(val) > 0 {
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res = val[0].Interface().(Response)
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} else {
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res = ServerError(err)
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}
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res.WriteTo(c)
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}
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}
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// JSON creates a JSON response.
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func JSON(status int, body interface{}) *NormalResponse {
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return Respond(status, body).Header("Content-Type", "application/json")
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}
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// jsonStreaming creates a streaming JSON response.
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func jsonStreaming(status int, body interface{}) streamingResponse {
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header := make(http.Header)
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header.Set("Content-Type", "application/json")
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return streamingResponse{
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status: status,
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body: body,
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header: header,
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}
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}
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// Success create a successful response
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func Success(message string) *NormalResponse {
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resp := make(map[string]interface{})
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resp["message"] = message
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return JSON(200, resp)
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}
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// Error creates an error response.
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func Error(status int, message string, err error) *NormalResponse {
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data := make(map[string]interface{})
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switch status {
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case 404:
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data["message"] = "Not Found"
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case 500:
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data["message"] = "Internal Server Error"
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}
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if message != "" {
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data["message"] = message
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}
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if err != nil {
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if setting.Env != setting.Prod {
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data["error"] = err.Error()
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}
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}
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resp := JSON(status, data)
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if err != nil {
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resp.errMessage = message
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resp.err = err
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}
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return resp
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}
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// Respond creates a response.
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func Respond(status int, body interface{}) *NormalResponse {
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var b []byte
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switch t := body.(type) {
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case []byte:
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b = t
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case string:
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b = []byte(t)
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default:
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var err error
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if b, err = json.Marshal(body); err != nil {
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return Error(500, "body json marshal", err)
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}
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}
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return &NormalResponse{
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body: b,
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status: status,
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header: make(http.Header),
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}
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}
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func Redirect(location string) *RedirectResponse {
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return &RedirectResponse{location: location}
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}
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