Can I use Go web scraping techniques on mobile sites?

Yes, you can use Go (Golang) web scraping techniques on mobile sites just as you would on desktop sites. Mobile sites are typically just web pages with HTML, CSS, and JavaScript optimized for mobile devices. Since the underlying technology is the same, web scraping techniques apply equally to both.

When scraping mobile sites, one thing to consider is that they might serve different content based on the user-agent string of the browser. Therefore, when scraping, you might want to set the user-agent string of your HTTP request to mimic a mobile browser to ensure you get the mobile-optimized content.

Here's a basic example of how you might scrape a mobile site using Go, with the colly package, which is a popular scraping framework for Go:

package main

import (
    "fmt"
    "log"

    "github.com/gocolly/colly"
)

func main() {
    // Create a new collector which will be using mobile User-Agent
    c := colly.NewCollector(
        colly.UserAgent("Mozilla/5.0 (iPhone; CPU iPhone OS 10_3 like Mac OS X) AppleWebKit/602.1.50 (KHTML, like Gecko) CriOS/56.0.2924.75 Mobile/14E5239e Safari/602.1"),
    )

    // Define a callback for the scraping
    c.OnHTML("a[href]", func(e *colly.HTMLElement) {
        link := e.Attr("href")
        fmt.Printf("Link found: %q -> %s\n", e.Text, link)
    })

    // Define a callback for errors
    c.OnError(func(r *colly.Response, err error) {
        log.Println("Something went wrong:", err)
    })

    // Start the scraping process
    c.Visit("https://m.example.com")
}

In this example, we're using the colly library for Go, which provides a convenient and powerful way to scrape websites. We're setting a mobile user-agent so that the website returns content optimized for mobile devices. The OnHTML function is used to specify a callback that handles the HTML elements we're interested in, in this case, links (a[href]).

Remember that web scraping should be done responsibly and ethically. Always check the website's robots.txt file and terms of service to ensure you're allowed to scrape their data. Also, be mindful of the number of requests you're sending to avoid overwhelming the server.