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proxy.golang.org : github.com/gorilla/context

Package context stores values shared during a request lifetime. Note: gorilla/context, having been born well before `context.Context` existed, does not play well > with the shallow copying of the request that [`http.Request.WithContext`](https://golang.org/pkg/net/http/#Request.WithContext) (added to net/http Go 1.7 onwards) performs. You should either use *just* gorilla/context, or moving forward, the new `http.Request.Context()`. For example, a router can set variables extracted from the URL and later application handlers can access those values, or it can be used to store sessions values to be saved at the end of a request. There are several others common uses. The idea was posted by Brad Fitzpatrick to the go-nuts mailing list: Here's the basic usage: first define the keys that you will need. The key type is interface{} so a key can be of any type that supports equality. Here we define a key using a custom int type to avoid name collisions: Then set a variable. Variables are bound to an http.Request object, so you need a request instance to set a value: The application can later access the variable using the same key you provided: And that's all about the basic usage. We discuss some other ideas below. Any type can be stored in the context. To enforce a given type, make the key private and wrap Get() and Set() to accept and return values of a specific type: Variables must be cleared at the end of a request, to remove all values that were stored. This can be done in an http.Handler, after a request was served. Just call Clear() passing the request: ...or use ClearHandler(), which conveniently wraps an http.Handler to clear variables at the end of a request lifetime. The Routers from the packages gorilla/mux and gorilla/pat call Clear() so if you are using either of them you don't need to clear the context manually.

Registry - Source - Documentation - JSON
purl: pkg:golang/github.com/gorilla/context
Keywords: go, gorilla
License: BSD-3-Clause
Latest release: 7 months ago
First release: almost 8 years ago
Namespace: github.com/gorilla
Dependent packages: 4,065
Dependent repositories: 46,896
Stars: 417 on GitHub
Forks: 140 on GitHub
Docker dependents: 357
Docker downloads: 542,774,415
See more repository details: repos.ecosyste.ms
Last synced: about 10 hours ago

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