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README.md
87
README.md
@ -82,24 +82,32 @@ e.DELETE("/users/:id", deleteUser)
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### Path Parameters
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```go
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// e.GET("/users/:id", getUser)
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func getUser(c echo.Context) error {
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// User ID from path `users/:id`
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id := c.Param("id")
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// User ID from path `users/:id`
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id := c.Param("id")
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return c.String(http.StatusOK, id)
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}
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```
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Browse to http://localhost:1323/users/Joe and you should see 'Joe' on the page.
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### Query Parameters
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`/show?team=x-men&member=wolverine`
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```go
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//e.GET("/show", show)
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func show(c echo.Context) error {
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// Get team and member from the query string
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team := c.QueryParam("team")
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member := c.QueryParam("member")
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return c.String(http.StatusOK, "team:" + team + ", member:" + member)
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}
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```
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Browse to http://localhost:1323/show?team=x-men&member=wolverine and you should see 'team:x-men, member:wolverine' on the page.
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### Form `application/x-www-form-urlencoded`
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`POST` `/save`
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@ -111,13 +119,22 @@ email | joe@labstack.com
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```go
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// e.POST("/save", save)
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func save(c echo.Context) error {
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// Get name and email
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name := c.FormValue("name")
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email := c.FormValue("email")
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return c.String(http.StatusOK, "name:" + name + ", email:" + email)
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}
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```
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Run the following command:
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```sh
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$ curl -F "name=Joe Smith" -F "email=joe@labstack.com" http://localhost:1323/save
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// => name:Joe Smith, email:joe@labstack.com
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```
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### Form `multipart/form-data`
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`POST` `/save`
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@ -125,43 +142,55 @@ func save(c echo.Context) error {
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name | value
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:--- | :---
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name | Joe Smith
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email | joe@labstack.com
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avatar | avatar
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```go
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func save(c echo.Context) error {
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// Get name and email
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// Get name
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name := c.FormValue("name")
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email := c.FormValue("email")
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// Get avatar
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avatar, err := c.FormFile("avatar")
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if err != nil {
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return err
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}
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avatar, err := c.FormFile("avatar")
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if err != nil {
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return err
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}
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// Source
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src, err := avatar.Open()
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if err != nil {
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return err
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}
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defer src.Close()
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// Destination
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dst, err := os.Create(avatar.Filename)
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if err != nil {
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return err
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}
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defer dst.Close()
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// Copy
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if _, err = io.Copy(dst, src); err != nil {
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return err
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}
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// Source
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src, err := avatar.Open()
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if err != nil {
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return err
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}
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defer src.Close()
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// Destination
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dst, err := os.Create(avatar.Filename)
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if err != nil {
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return err
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}
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defer dst.Close()
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// Copy
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if _, err = io.Copy(dst, src); err != nil {
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return err
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}
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return c.HTML(http.StatusOK, "<b>Thank you!</b>")
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return c.HTML(http.StatusOK, "<b>Thank you! " + name + "</b>")
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}
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```
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Run the following command.
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```sh
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$ curl -F "name=Joe Smith" -F "avatar=@/path/to/your/avatar.png" http://localhost:1323/save
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// => <b>Thank you! Joe Smith</b>
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```
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For checking uploaded image, run the following command.
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```sh
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cd <project directory>
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ls avatar.png
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// => avatar.png
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```
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### Handling Request
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- Bind `JSON` or `XML` or `form` payload into Go struct based on `Content-Type` request header.
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@ -48,8 +48,8 @@ package main
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import (
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"net/http"
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"github.com/labstack/echo"
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"github.com/labstack/echo/engine/standard"
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)
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func main() {
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@ -57,7 +57,7 @@ func main() {
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e.GET("/", func(c echo.Context) error {
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return c.String(http.StatusOK, "Hello, World!")
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})
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if err := e.Start(":1323"); err != nil {
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e.Logger.Fatal(err.Error())
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}
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@ -85,12 +85,14 @@ e.DELETE("/users/:id", deleteUser)
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### Path Parameters
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```go
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// e.GET("/users/:id", getUser)
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func getUser(c echo.Context) error {
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// User ID from path `users/:id`
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id := c.Param("id")
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// User ID from path `users/:id`
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id := c.Param("id")
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return c.String(http.StatusOK, id)
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}
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```
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Browse to http://localhost:1323/users/Joe and you should see 'Joe' on the page.
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### Query Parameters
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@ -98,11 +100,11 @@ Browse to http://localhost:1323/users/Joe and you should see 'Joe' on the page.
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`/show?team=x-men&member=wolverine`
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```go
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//e.GET("/show", show)
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func show(c echo.Context) error {
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// Get team and member from the query string
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team := c.QueryParam("team")
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member := c.QueryParam("member")
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return c.String(http.StatusOK, "team:" + team + ", member:" + member)
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}
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```
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@ -118,17 +120,19 @@ name | value
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name | Joe Smith
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email | joe@labstack.com
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```go
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// e.POST("/save", save)
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func save(c echo.Context) error {
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// Get name and email
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name := c.FormValue("name")
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email := c.FormValue("email")
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return c.String(http.StatusOK, "name:" + name + ", email:" + email)
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}
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```
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Run the following command.
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Run the following command:
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```sh
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$ curl -F "name=Joe Smith" -F "email=joe@labstack.com" http://localhost:1323/save
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// => name:Joe Smith, email:joe@labstack.com
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@ -148,7 +152,7 @@ func save(c echo.Context) error {
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// Get name
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name := c.FormValue("name")
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// Get avatar
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avatar, err := c.FormFile("avatar")
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avatar, err := c.FormFile("avatar")
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if err != nil {
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return err
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}
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@ -181,8 +185,9 @@ Run the following command.
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$ curl -F "name=Joe Smith" -F "avatar=@/path/to/your/avatar.png" http://localhost:1323/save
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// => <b>Thank you! Joe Smith</b>
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```
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For checking uploaded image, run the following command.
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To check the uploaded image, run the following command.
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```sh
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cd <project directory>
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ls avatar.png
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