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966839dfea
* [doc] adding graceful documentation and example. * adding myself to the maintainers list and minor comment formatting change * [doc] updating code on the guides/context.md and guides/cookies.md to use v3 code. * [doc] updating error-handling and request to v3 codebase * [doc] updating templates documentation
1.1 KiB
1.1 KiB
+++ title = "Error Handling" description = "Error handling in Echo" [menu.side] name = "Error Handling" parent = "guide" weight = 8 +++
Error Handling
Echo advocates centralized HTTP error handling by returning error from middleware or handlers.
- Log errors from a unified location
- Send customized HTTP responses
For example, when basic auth middleware finds invalid credentials it returns
401 - Unauthorized error, aborting the current HTTP request.
package main
import (
"net/http"
"github.com/labstack/echo"
)
func main() {
e := echo.New()
e.Use(func(handler echo.HandlerFunc) echo.HandlerFunc {
// Extract the credentials from HTTP request header and perform a security
// check
// For invalid credentials
return func(c echo.Context) error {
return echo.NewHTTPError(http.StatusUnauthorized)
}
})
e.GET("/welcome", welcome)
if err := e.Start(":1323"); err != nil {
e.Logger.Fatal(err.Error())
}
}
func welcome(c echo.Context) error {
return c.String(http.StatusOK, "Welcome!")
}
See how HTTPErrorHandler handles it.