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Add custom http errors book's section to the readme

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This commit is contained in:
Gerasimos Maropoulos 2016-10-02 15:04:04 +03:00
parent 99734f7e11
commit b4378bc164
1 changed files with 50 additions and 4 deletions
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54
README.md
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@ -252,26 +252,30 @@ func save(ctx *iris.Context) {
// Get avatar // Get avatar
avatar, err := ctx.FormFile("avatar") avatar, err := ctx.FormFile("avatar")
if err != nil { if err != nil {
return err ctx.EmitError(iris.StatusInternalServerError)
return
} }
// Source // Source
src, err := avatar.Open() src, err := avatar.Open()
if err != nil { if err != nil {
return err ctx.EmitError(iris.StatusInternalServerError)
return
} }
defer src.Close() defer src.Close()
// Destination // Destination
dst, err := os.Create(avatar.Filename) dst, err := os.Create(avatar.Filename)
if err != nil { if err != nil {
return err ctx.EmitError(iris.StatusInternalServerError)
return
} }
defer dst.Close() defer dst.Close()
// Copy // Copy
if _, err = io.Copy(dst, src); err != nil { if _, err = io.Copy(dst, src); err != nil {
return err ctx.EmitError(iris.StatusInternalServerError)
return
} }
ctx.HTML(iris.StatusOK, "<b>Thanks!</b>") ctx.HTML(iris.StatusOK, "<b>Thanks!</b>")
@ -294,6 +298,7 @@ iris.Post("/users", func(ctx *iris.Context) {
u := new(User) u := new(User)
if err := ctx.ReadJSON(u); err != nil { if err := ctx.ReadJSON(u); err != nil {
ctx.EmitError(iris.StatusInternalServerError) ctx.EmitError(iris.StatusInternalServerError)
return
} }
ctx.JSON(iris.StatusCreated, u) ctx.JSON(iris.StatusCreated, u)
// or // or
@ -314,6 +319,47 @@ iris.Post("/users", func(ctx *iris.Context) {
| [Text](https://github.com/kataras/go-serializer/tree/master/text) | Text Serializer (Default) |[example 1](https://github.com/iris-contrib/examples/blob/master/serialize_engines/text_1/main.go), [book section](https://kataras.gitbooks.io/iris/content/serialize-engines.html) | [Text](https://github.com/kataras/go-serializer/tree/master/text) | Text Serializer (Default) |[example 1](https://github.com/iris-contrib/examples/blob/master/serialize_engines/text_1/main.go), [book section](https://kataras.gitbooks.io/iris/content/serialize-engines.html)
| [Binary Data ](https://github.com/kataras/go-serializer/tree/master/data) | Binary Data Serializer (Default) |[example 1](https://github.com/iris-contrib/examples/blob/master/serialize_engines/data_1/main.go), [book section](https://kataras.gitbooks.io/iris/content/serialize-engines.html) | [Binary Data ](https://github.com/kataras/go-serializer/tree/master/data) | Binary Data Serializer (Default) |[example 1](https://github.com/iris-contrib/examples/blob/master/serialize_engines/data_1/main.go), [book section](https://kataras.gitbooks.io/iris/content/serialize-engines.html)
### HTTP Errors
You can define your own handlers when http error occurs.
```go
package main
import (
"github.com/kataras/iris"
)
func main() {
iris.OnError(iris.StatusInternalServerError, func(ctx *iris.Context) {
ctx.Write("CUSTOM 500 INTERNAL SERVER ERROR PAGE")
// or ctx.Render, ctx.HTML any render method you want
ctx.Log("http status: 500 happened!")
})
iris.OnError(iris.StatusNotFound, func(ctx *iris.Context) {
ctx.Write("CUSTOM 404 NOT FOUND ERROR PAGE")
ctx.Log("http status: 404 happened!")
})
// emit the errors to test them
iris.Get("/500", func(ctx *iris.Context) {
ctx.EmitError(iris.StatusInternalServerError) // ctx.Panic()
})
iris.Get("/404", func(ctx *iris.Context) {
ctx.EmitError(iris.StatusNotFound) // ctx.NotFound()
})
iris.Listen(":80")
}
```
### Static Content ### Static Content
Serve files or directories, use the correct for your case, if you don't know which one, just use the `Static(relative string, systemPath string, stripSlashes int)`. Serve files or directories, use the correct for your case, if you don't know which one, just use the `Static(relative string, systemPath string, stripSlashes int)`.