Form - Iris

Content-Type Requested: application/x-www-form-urlencoded
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package main
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​
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import "github.com/kataras/iris/v12"
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​
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func main() {
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    app := iris.New()
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    app.RegisterView(iris.HTML("./templates", ".html"))
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​
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    app.Get("/", showForm)
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    app.Post("/", handleForm)
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​
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    app.Listen(":8080")
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}
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​
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func showForm(ctx iris.Context) {
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    ctx.View("form.html")
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}
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​
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type formExample struct {
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    Colors []string `form:"colors[]"` // or just "colors".
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}
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​
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func handleForm(ctx iris.Context) {
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    var form formExample
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    err := ctx.ReadForm(&form)
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    if err != nil {
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        ctx.StopWithError(iris.StatusBadRequest, err)
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        return
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    }
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​
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    ctx.JSON(iris.Map{"Colors": form.Colors})
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}
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templates/form.html
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<form action="/" method="POST">
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    <p>Check one or more colors</p>
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​
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    <label for="red">Red</label>
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    <!-- name can be "colors" too -->
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    <input type="checkbox" name="colors[]" value="red" id="red">
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    <label for="green">Green</label>
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    <input type="checkbox" name="colors[]" value="green" id="green">
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    <label for="blue">Blue</label>
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    <input type="checkbox" name="colors[]" value="blue" id="blue">
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    <input type="submit">
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</form>
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Result
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{
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  "Colors": [
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    "red",
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    "green",
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    "blue"
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  ]
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}
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