Transferring cookies from Go Rod (Headless Browser) to Colly's CookieJar

Other Questions Headless Browser
1

I’m working on extracting cookies from a headless browser using Golang and need to pass these cookies into the CookieJar of the requests package. Some cookies are generated by JavaScript, which I can capture from the headless browser. I have managed to save the browser cookies as a JSON file, but I’m unsure how to directly add these cookies to the CookieJar for further operations using requests.

Here’s my current method for exporting the cookies:

func moveCookies() {
    cookieList := (browser.MustGetCookies())
    serializedData, _ := json.Marshal(cookieList)
}

The serializedData variable appears like this:

{"name":"name","value":"value","domain":"domain","path":"path","expires":expires,"size":size,"httpOnly":bool,"secure":bool,"session":bool,"priority":"priority","sameParty":bool,"sourceScheme":"Secure","sourcePort":port}
2

To transfer the cookies from your Go Rod headless browser to Colly's CookieJar, you can unmarshal your JSON cookie data and add them to the CookieJar, which can handle cookies in a http.Cookie format. Here's how you can do it:

import (
    "encoding/json"
    "net/http"
)

func addCookiesToCookieJar(serializedData []byte, jar *http.CookieJar) {
    var cookies []http.Cookie
    json.Unmarshal(serializedData, &cookies)
    
    for _, cookie := range cookies {
        jar.SetCookies(&http.Cookie{...})
        // Add additional properties as needed
    }
}

Make sure to properly construct the http.Cookie structure when setting it in your CookieJar.

3

To efficiently transfer your headless browser cookies to Colly's CookieJar, you need to convert your serialized JSON cookie data into http.Cookie objects and then insert them into the jar. Here's a direct and practical way to achieve that:

import (
    "encoding/json"
    "net/http"
    "net/url"
)

func addCookiesToCookieJar(serializedData []byte, jar *http.CookieJar) {
    var cookieData []map[string]interface{}  
    err := json.Unmarshal(serializedData, &cookieData)
    if err != nil {
        log.Fatal(err)
        return
    }
    
    for _, data := range cookieData {
        cookie := &http.Cookie{
            Name:   data["name"].(string),
            Value:  data["value"].(string),
            Domain: data["domain"].(string),
            Path:   data["path"].(string),
        }
        u, _ := url.Parse(data["domain"].(string))
        jar.SetCookies(u, []*http.Cookie{cookie})
    }
}

Ensure you replace the placeholders with corresponding values and handle the cookies appropriately based on their properties like domain, path, etc. This will optimize your workflow by enabling a seamless transition from a headless browser session to HTTP requests.