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doc.go
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/*
* Copyright (c) 2013 Matt Jibson <matt.jibson@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
Package appstats profiles the RPC performance of Google App Engine applications.
Reference: https://developers.google.com/appengine/docs/python/tools/appstats
To use this package, change your HTTP handler functions to use this signature:
func(appengine.Context, http.ResponseWriter, *http.Request)
Register them in the usual way, wrapping them with NewHandler.
Example
This is a small example using this package.
import (
"net/http"
"appengine"
"github.com/mjibson/appstats"
)
func init() {
http.Handle("/", appstats.NewHandler(Main))
}
func Main(c appengine.Context, w http.ResponseWriter, r *http.Request) {
// do stuff with c: datastore.Get(c, key, entity)
w.Write([]byte("success"))
}
Usage
Use your app, and view the appstats interface at http://localhost:8080/_ah/stats/, or your production URL.
Configuration
Refer to the variables section of the documentation: http://godoc.org/github.com/mjibson/appstats#pkg-variables.
Routing
In general, your app.yaml will not need to change. In the case of conflicting
routes, add the following to your app.yaml:
handlers:
- url: /_ah/stats/.*
script: _go_app
TODO
Cost calculation is experimental. Currently it only includes write ops (read and small ops are TODO).
*/
package appstats