mirror of
https://github.com/labstack/echo.git
synced 2026-05-16 09:48:24 +02:00
Vishal Rana
81 lines
1.5 KiB
Markdown
81 lines
1.5 KiB
Markdown
+++
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title = "FAQ"
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description = "Frequently asked questions in Echo"
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[menu.main]
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name = "FAQ"
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parent = "guide"
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weight = 20
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+++
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Q: How to retrieve `*http.Request` and `http.ResponseWriter` from `echo.Context`?
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- `http.Request` > `c.Request()`
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- `http.ResponseWriter` > `c.Response()`
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Q: How to use standard handler `func(http.ResponseWriter, *http.Request)` with Echo?
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```go
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func handler(w http.ResponseWriter, r *http.Request) {
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io.WriteString(w, "Echo!")
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}
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func main() {
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e := echo.New()
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e.GET("/", echo.WrapHandler(http.HandlerFunc(handler)))
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e.Start(":1323")
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}
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```
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Q: How to use standard middleware `func(http.Handler) http.Handler` with Echo?
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```go
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func middleware(h http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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println("middleware")
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h.ServeHTTP(w, r)
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})
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}
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func main() {
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e := echo.New()
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e.Use(echo.WrapMiddleware(middleware))
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e.GET("/", func(c echo.Context) error {
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return c.String(http.StatusOK, "Echo!")
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})
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e.Start(":1323")
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}
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```
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Q: How to run Echo on a specific IP address?
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```go
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e.Start("<ip>:<port>")
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```
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Q: How to run Echo on a random port?
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```go
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e.Start(":0")
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```
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Q: How to run Echo on a unix domain socket?
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```go
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e := echo.New()
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e.GET("/", func(c echo.Context) error {
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return c.String(http.StatusOK, "OK")
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})
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os.Remove("/tmp/echo.sock")
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l, err := net.Listen("unix", "/tmp/echo.sock")
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if err != nil {
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e.Logger.Fatal(err)
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}
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e.Listener = l
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e.Logger.Fatal(e.Start(""))
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```
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```sh
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curl --unix-socket /tmp/echo.sock http://localhost
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```
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