mirror of
https://github.com/kataras/iris.git
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126 lines
3.8 KiB
Go
126 lines
3.8 KiB
Go
package main
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import (
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"time"
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"github.com/kataras/iris"
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"github.com/kataras/iris/context"
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"github.com/kataras/iris/sessions"
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)
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type businessModel struct {
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Name string
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}
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func main() {
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app := iris.New()
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sess := sessions.New(sessions.Config{
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// Cookie string, the session's client cookie name, for example: "mysessionid"
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//
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// Defaults to "irissessionid"
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Cookie: "mysessionid",
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// it's time.Duration, from the time cookie is created, how long it can be alive?
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// 0 means no expire.
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// -1 means expire when browser closes
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// or set a value, like 2 hours:
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Expires: time.Hour * 2,
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// if you want to invalid cookies on different subdomains
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// of the same host, then enable it
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DisableSubdomainPersistence: false,
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// want to be crazy safe? Take a look at the "securecookie" example folder.
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})
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app.Get("/", func(ctx context.Context) {
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ctx.Writef("You should navigate to the /set, /get, /delete, /clear,/destroy instead")
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})
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app.Get("/set", func(ctx context.Context) {
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//set session values.
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s := sess.Start(ctx)
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s.Set("name", "iris")
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//test if setted here
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ctx.Writef("All ok session setted to: %s", s.GetString("name"))
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// Set will set the value as-it-is,
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// if it's a slice or map
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// you will be able to change it on .Get directly!
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// Keep note that I don't recommend saving big data neither slices or maps on a session
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// but if you really need it then use the `SetImmutable` instead of `Set`.
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// Use `SetImmutable` consistently, it's slower.
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// Read more about muttable and immutable go types: https://stackoverflow.com/a/8021081
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})
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app.Get("/get", func(ctx context.Context) {
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// get a specific value, as string, if no found returns just an empty string
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name := sess.Start(ctx).GetString("name")
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ctx.Writef("The name on the /set was: %s", name)
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})
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app.Get("/delete", func(ctx context.Context) {
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// delete a specific key
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sess.Start(ctx).Delete("name")
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})
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app.Get("/clear", func(ctx context.Context) {
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// removes all entries
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sess.Start(ctx).Clear()
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})
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app.Get("/update", func(ctx context.Context) {
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// updates expire date
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sess.ShiftExpiraton(ctx)
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})
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app.Get("/destroy", func(ctx context.Context) {
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//destroy, removes the entire session data and cookie
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sess.Destroy(ctx)
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})
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// Note about Destroy:
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//
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// You can destroy a session outside of a handler too, using the:
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// mySessions.DestroyByID
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// mySessions.DestroyAll
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// remember: slices and maps are muttable by-design
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// The `SetImmutable` makes sure that they will be stored and received
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// as immutable, so you can't change them directly by mistake.
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//
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// Use `SetImmutable` consistently, it's slower than `Set`.
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// Read more about muttable and immutable go types: https://stackoverflow.com/a/8021081
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app.Get("/set_immutable", func(ctx context.Context) {
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business := []businessModel{{Name: "Edward"}, {Name: "value 2"}}
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s := sess.Start(ctx)
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s.SetImmutable("businessEdit", business)
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businessGet := s.Get("businessEdit").([]businessModel)
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// try to change it, if we used `Set` instead of `SetImmutable` this
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// change will affect the underline array of the session's value "businessEdit", but now it will not.
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businessGet[0].Name = "Gabriel"
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})
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app.Get("/get_immutable", func(ctx context.Context) {
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valSlice := sess.Start(ctx).Get("businessEdit")
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if valSlice == nil {
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ctx.HTML("please navigate to the <a href='/set_immutable'>/set_immutable</a> first")
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return
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}
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firstModel := valSlice.([]businessModel)[0]
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// businessGet[0].Name is equal to Edward initially
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if firstModel.Name != "Edward" {
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panic("Report this as a bug, immutable data cannot be changed from the caller without re-SetImmutable")
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}
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ctx.Writef("[]businessModel[0].Name remains: %s", firstModel.Name)
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// the name should remains "Edward"
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})
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app.Run(iris.Addr(":8080"))
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}
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