mirror of
https://github.com/kataras/iris.git
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117 lines
3.2 KiB
Go
117 lines
3.2 KiB
Go
package main
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import (
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"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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// Catch a specific error code.
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app.OnErrorCode(iris.StatusInternalServerError, func(ctx iris.Context) {
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ctx.HTML("Message: <b>" + ctx.Values().GetString("message") + "</b>")
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})
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// Catch all error codes [app.OnAnyErrorCode...]
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app.Get("/", func(ctx iris.Context) {
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ctx.HTML(`Click <a href="/my500">here</a> to pretend an HTTP error`)
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})
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app.Get("/my500", func(ctx iris.Context) {
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ctx.Values().Set("message", "this is the error message")
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ctx.StatusCode(500)
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})
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app.Get("/u/{firstname:alphabetical}", func(ctx iris.Context) {
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ctx.Writef("Hello %s", ctx.Params().Get("firstname"))
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})
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// Read more at: https://github.com/kataras/iris/issues/1335
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app.Get("/product-problem", problemExample)
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app.Get("/product-error", func(ctx iris.Context) {
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ctx.Writef("explain the error")
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})
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// http://localhost:8080
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// http://localhost:8080/my500
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// http://localhost:8080/u/gerasimos
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// http://localhost:8080/product-problem
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app.Listen(":8080")
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}
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func newProductProblem(productName, detail string) iris.Problem {
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return iris.NewProblem().
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// The type URI, if relative it automatically convert to absolute.
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Type("/product-error").
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// The title, if empty then it gets it from the status code.
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Title("Product validation problem").
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// Any optional details.
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Detail(detail).
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// The status error code, required.
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Status(iris.StatusBadRequest).
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// Any custom key-value pair.
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Key("productName", productName)
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// Optional cause of the problem, chain of Problems.
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// Cause(iris.NewProblem().Type("/error").Title("cause of the problem").Status(400))
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}
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func problemExample(ctx iris.Context) {
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/*
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p := iris.NewProblem().
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Type("/validation-error").
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Title("Your request parameters didn't validate").
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Detail("Optional details about the error.").
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Status(iris.StatusBadRequest).
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Key("customField1", customValue1)
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Key("customField2", customValue2)
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ctx.Problem(p)
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// OR
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ctx.Problem(iris.Problem{
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"type": "/validation-error",
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"title": "Your request parameters didn't validate",
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"detail": "Optional details about the error.",
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"status": iris.StatusBadRequest,
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"customField1": customValue1,
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"customField2": customValue2,
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})
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// OR
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*/
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// Response like JSON but with indent of " " and
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// content type of "application/problem+json"
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ctx.Problem(newProductProblem("product name", "problem error details"), iris.ProblemOptions{
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// Optional JSON renderer settings.
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JSON: iris.JSON{
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Indent: " ",
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},
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// OR
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// Render as XML:
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//
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// RenderXML: true,
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// XML: iris.XML{Indent: " "},
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// and ctx.StatusCode(200) to see the result on browser as a user.
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//
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// The below `RetryAfter` field sets the "Retry-After" response header.
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//
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// Can accept:
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// time.Time for HTTP-Date,
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// time.Duration, int64, float64, int for seconds
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// or string for date or duration.
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// Examples:
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// time.Now().Add(5 * time.Minute),
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// 300 * time.Second,
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// "5m",
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//
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RetryAfter: 300,
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// A function that, if specified, can dynamically set
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// retry-after based on the request. Useful for ProblemOptions reusability.
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// Overrides the RetryAfter field.
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//
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// RetryAfterFunc: func(iris.Context) interface{} { [...] }
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})
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}
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