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49 lines
1000 B
Markdown
49 lines
1000 B
Markdown
---
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title: Error Handling
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menu:
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side:
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parent: guide
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weight: 8
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---
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Echo advocates centralized HTTP error handling by returning `error` from middleware
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and handlers.
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It allows you to:
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- Debug by writing stack trace to the HTTP response.
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- Customize HTTP responses.
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- Recover from panics inside middleware or handlers.
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For example, when basic auth middleware finds invalid credentials it returns
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`401 - Unauthorized` error, aborting the current HTTP request.
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```go
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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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)
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func main() {
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e := echo.New()
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e.Use(func(c echo.Context) error {
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// Extract the credentials from HTTP request header and perform a security
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// check
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// For invalid credentials
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return echo.NewHTTPError(http.StatusUnauthorized)
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})
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e.Get("/welcome", welcome)
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e.Run(":1323")
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}
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func welcome(c echo.Context) error {
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return c.String(http.StatusOK, "Welcome!")
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}
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```
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See how [HTTPErrorHandler](/guide/customization#http-error-handler) handles it.
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