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Package appengine provides functionality that is common across App Engine APIs.
func AppID(c Context) string
AppID returns the application ID for the current application. The string will be a plain application ID (e.g. "appid"), with a domain prefix for custom domain deployments (e.g. "example.com:appid").
func BackendHostname(c Context, name string, index int) string
BackendHostname returns the standard hostname of the specified backend. If index is -1, BackendHostname returns the load-balancing hostname for the backend.
func BackendInstance(c Context) (name string, index int)
BackendInstance returns the name and index of the current backend instance, or "", -1 if this is not a backend instance.
func DefaultVersionHostname(c Context) string
DefaultVersionHostname returns the standard hostname of the default version
of the current application (e.g. http://your_app_id.appspot.com
). This is suitable for
use in constructing URLs.
func IsDevAppServer() bool
IsDevAppServer reports whether the App Engine app is running in the development App Server.
func VersionID(c Context) string
VersionID returns the version ID for the current application. It will be of the form "X.Y", where X is specified in app.yaml, and Y is a number generated when each version of the app is uploaded.
BlobKey is a key for a blobstore blob.
Conceptually, this type belongs in the blobstore package, but it lives in the appengine package to avoid a circular dependency: blobstore depends on datastore, and datastore needs to refer to the BlobKey type.
type BlobKey string
Context represents the context of an in-flight HTTP request.
type Context interface { // Debugf formats its arguments according to the format, analogous to fmt.Printf, // and records the text as a log message at Debug level. Debugf(format string, args ...interface{}) // Infof is like Debugf, but at Info level. Infof(format string, args ...interface{}) // Warningf is like Debugf, but at Warning level. Warningf(format string, args ...interface{}) // Errorf is like Debugf, but at Error level. Errorf(format string, args ...interface{}) // Criticalf is like Debugf, but at Critical level. Criticalf(format string, args ...interface{}) }
func NewContext(req *http.Request) Context
NewContext returns a new context for an in-flight HTTP request.