🤗 [Question]: Is the Ctx.BodyParser missing in v3?

[ihms]

Question Description

Hi Guys,

New to Go/Fiber and really been enjoying it. I have noticed that the BodyParser is missing in the v3 branch. The v3-alpha still includes it and the documentation is still referring to the method.

#https://github.com/gofiber/fiber/blob/v3-alpha/ctx.go#L336

Latest:

#https://github.com/gofiber/fiber/blob/main/ctx.go

Is this correct, are the docs simply outdated?

#https://docs.gofiber.io/api/ctx#bodyparser

Appreciate any feedback,

Thanks

Code Snippet (optional)

package main

import "github.com/gofiber/fiber/v3"
import "log"

func main() {
  app := fiber.New()
  type payload struct {
	Html string `json:"html"`
  }
  app.Post("/html", func(c fiber.Ctx) error {
	body := new(payload)
	if err := c.BodyParser(body); err != nil {
	    return err
	}
	log.Println("html", body.Html)
	return c.Send(c.Body())
  })
  log.Fatal(app.Listen(":3000"))
}

Checklist:

• I agree to follow Fiber's Code of Conduct.
• I have checked for existing issues that describe my questions prior to opening this one.
• I understand that improperly formatted questions may be closed without explanation.

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[Giovanni Rivera]

Hi @rolandihms, yes I believe the docs are still being updated for v3. c.BodyParser() was removed in v3 in favor of moving implementation details for binding payloads to a struct and related tasks into a new *fiber.Bind struct located at fiber/bind.go. You can get a pointer to this struct by using the c.Bind() defined in fiber/ctx_interface.go.

To upgrade your code snippet to use the new c.Bind() method, it would look like this:

package main

import (
    "github.com/gofiber/fiber/v3"
    "log"
)

type payload struct {
    Html string `json:"html"`
}

func main() {
    app := fiber.New()
    app.Post("/html", func(c fiber.Ctx) error {
        body := new(payload)
        if err := c.Bind().JSON(body); err != nil {
	    return err
	}
	log.Println("html", body.Html)
	return c.Send(c.Body())
    })
    log.Fatal(app.Listen(":3000"))
}

Also, did you mean to use return c.Send(body) instead of return c.Send(c.Body())? Sending c.Body() wouldn't require using c.Bind().JSON() within the POST /html handler in this example.

I hope this is helpful!

[ihms]

Thanks @grivera64 makes perfect sense thank you.