Text Response

Learn how to send text responses in Iris.

Basic Text Response

package main

import "github.com/kataras/iris/v12"

func main() {
    app := iris.New()

    app.Get("/text", func(ctx iris.Context) {
        ctx.Text("Hello World")
    })

    app.Get("/formatted", func(ctx iris.Context) {
        name := "John"
        age := 25
        ctx.Writef("Name: %s, Age: %d", name, age)
    })

    app.Listen(":8080")
}

Content Type

app.Get("/custom", func(ctx iris.Context) {
    ctx.ContentType("text/plain; charset=UTF-8")
    ctx.WriteString("Custom content type")
})

Status Code

app.Get("/status", func(ctx iris.Context) {
    ctx.StatusCode(iris.StatusOK)
    ctx.Text("Success!")
})

Best Practices

1. Content Type:

   • Set appropriate charset
   • Use correct MIME type
   • Handle encoding properly
   • Consider client needs
   • Document requirements

2. Performance:

   • Optimize response size
   • Enable compression
   • Cache when possible
   • Monitor response times
   • Handle timeouts

3. Error Handling:

   • Set proper status codes
   • Provide clear messages
   • Log errors appropriately
   • Handle edge cases
   • Validate input

4. Security:

   • Sanitize output
   • Validate input
   • Set security headers
   • Monitor responses
   • Handle sensitive data