无法为golang的fasthttp框架设置cookie

Question

我试图使用fasthttp框架从服务器上设置cookie。但是，cookie值在响应头中没有正确设置。我不知道我在下面的片段中遗漏了什么。

package main

import (
    "log"

    "github.com/valyala/fasthttp"
)

func main() {
    if err := fasthttp.ListenAndServe(":8080", requestHandler); err != nil {
        log.Fatalf("Error in ListenAndServe: %s", err)
    }
}

func requestHandler(ctx *fasthttp.RequestCtx) {
    switch string(ctx.Path()) {
    case "/foo":
        cook1 := fasthttp.Cookie{}
        cook1.SetKey("cookie_key")
        cook1.SetValue("cookie val")
        cook1.SetMaxAge(3600000)
        cook1.SetDomain("prabhakaran.com")
        cook1.SetPath(("/"))
        cook1.SetSecure(true)
        ctx.Response.Header.Cookie(&cook1)
        ctx.SetBody([]byte("this is completely new body contents"))

    case "/bar":
        //todo: Bar handler
        // ctx.SetBody([]byte("111111111111111111111"))
    default:
        ctx.Error("Unsupported path", fasthttp.StatusNotFound)
    }
}

我也尝试过ctx.Response.Header.SetCookie(&cook1) API。但这行不通。有什么东西遗漏了片段吗？

Answer 1

ctx.Response.Header.Cookie(&cook1)

Cookie函数用于查看cookie值。所以，使用SetCookie函数代替Cookie。如果您正在http协议中运行服务器，请删除cook1.SetSecure(true)语句。

Answer 2

这里是一个cookie检索的例子。

// ParseTokenFromRequest is delegated to retrieved the token encoded in the request. The token can be sent in two different way.
// In first instance the method will try to find the token in the cookie. If the cookie is not provided in the cookie,
// then the research will continue analayzing the body of the request (URL ARGS,GET,POST).
// In case of token not found, an empty string will be returned
func ParseTokenFromRequest(ctx *fasthttp.RequestCtx) string {
    token := string(ctx.Request.Header.Cookie("GoLog-Token")) // GoLog-Token is the hardcoded name of the cookie
    log.Info("ParseTokenFromRequest | Checking if token is in the cookie ...")
    if strings.Compare(token, "") == 0 { // No cookie provided :/ Checking in the request
        log.Warn("ParseTokenFromRequest | Token is not in the cookie, retrieving from the request ...")
        token = string(ctx.FormValue("token")) // Extracting the token from the request (ARGS,GET,POST)
        if strings.Compare(token, "") == 0 {   // No token provided in the request
            log.Warn("ParseTokenFromRequest | Can not find the token! ...")
            return "" // "COOKIE_NOT_PRESENT"
        }
        log.Info("ParseTokenFromRequest | Token found in request! ... | ", token)
    } else {
        log.Info("ParseTokenFromRequest | Token found in cookie! ... | ", token)
    }
    return token
}

这里是一个曲奇集的例子。

//CreateCookie Method that return a cookie valorized as input (GoLog-Token as key)
func CreateCookie(key string, value string, expire int) *fasthttp.Cookie {
    if strings.Compare(key, "") == 0 {
        key = "GoLog-Token"
    }
    log.Debug("CreateCookie | Creating Cookie | Key: ", key, " | Val: ", value)
    authCookie := fasthttp.Cookie{}
    authCookie.SetKey(key)
    authCookie.SetValue(value)
    authCookie.SetMaxAge(expire)
    authCookie.SetHTTPOnly(true)
    authCookie.SetSameSite(fasthttp.CookieSameSiteLaxMode)
    return &authCookie
}
authcookie := CreateCookie('','TEST_VALUE',120)
ctx.Response.Header.SetCookie(authcookie)     // Set the token into the cookie headers
ctx.Response.Header.Set("GoLog-Token", token) // Set the token into a custom headers

这里是一个cookie的例子-删除

ctx.Response.Header.DelCookie("GoLog-Token")