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Hello, LTT forumers! At the moment im running a PLEX server (when i need it) from my gaming pc. As i've been studying Golang a bit lately i would like to try to "launch" a Golang web app, at least accessible on my LAN. So the idea in my head is brewing that i should reutilize my old laptop as a server just for that purpose and that exactly is where it starts to get tricky. What my soon-to-be server would need to do: - Plex - Nextcloud (probably just some pictures) - Golang apps + databases - maybe something more? Questions related to that: - Should it be a virtual machine on top of my W10 laptop? - Ubuntu server or desktop? -- Or maybe even something else? - How do i "deploy" a Golang app on my server? - Or should i buy an "old random pc"? So the idea is to have at first a sandbox server to be able to try out how things work etc, hence, should i run a VM on my W10 laptop or just go to (some form) of Ubuntu etc.. I hope you guys can direct me in a path to choose. Thanks!

package main import ( "database/sql" "fmt" "log" _"github.com/go-sql-driver/mysql" ) func main() { db, err := sql.Open("mysql", "SQL CONNECTION") defer db.Close() if err != nil { log.Fatal(err) } result, err := db.Query("SELECT post_id,author FROM posts;") if err != nil { panic(err) } for result.Next() { var post_id string var author string var count int err = result.Scan(&post_id, &author) if like := db.QueryRow("SELECT COUNT(post_id) as count FROM rating_info WHERE post_id = '?' AND rating_action = 'like'",post_id).Scan(&count); if err != nil { fmt.Println(fmt.Sprintf("%#v", err)) panic(err) } fmt.Printf("Id: %d Name: %s\n", post_id, author) fmt.Println(like.Scan(count)) fmt.Println(like) } // database object has a method Close, // which is used to free the resource. // Free the resource when the function // is returned. defer db.Close() } end goal: I want to use like.count, how can i do this in GOLANG (coming from PHP?)

Hey everyone, I am copying a file using Go and must make sure that the buffer size of my last block matches the source file exactly, not extending the new file any longer. The files must be identical. I have a working program, I only need help with changing the buffer size for the last block. "One common mistake made by students is that they forget to consider the last block situation. Because a file can be of any size, the last block MIGHT NOT be filled to the very end. As a result, you need to write ONLY the number of bytes that are available in the last block." I have the code working, but I can't figure out how to change the buffer size. package main import ( "fmt" "io" "log" "os" "path/filepath" ) //BSIZE is the size of the buffer var BSIZE int64 = 4096 var err error = nil func main() { if len(os.Args) != 3 { fmt.Printf("usage: %s source destination \n", filepath.Base(os.Args[0])) os.Exit(3) } //open the source file source, err := os.Open(os.Args[1]) if err != nil { fmt.Println("Error opening file...") log.Fatal(err) } //check to make sure the destination file does not already exist _, err = os.Stat(os.Args[2]) if err == nil { fmt.Println("Destination file already exists.") log.Fatal(err) } //create destination file destination, err := os.Create(os.Args[2]) if err != nil { log.Fatal(err) } //actual copying of the file buf := make([]byte, BSIZE) for { n, err := source.Read(buf) if err != nil && err != io.EOF { log.Fatal(err) } if n == 0 { break } if _, err := destination.Write(buf[:n]); err != nil { log.Fatal(err) } } //close the files defer source.Close() defer destination.Close() }

Hello, I am trying to get an assignment wrapped up for school and can't figure out how to make this command line calculator work. I am trying to have it accept input from the user to determine whether or not it should repeat or end, and it completely stalls and I have to ^C to get it to stop. Any ideas? package main import ( "fmt" _ "fmt" "os" //"sort" ) func main() { fmt.Println("\n*****************************************************") fmt.Println("**** Welcome to the world's best CLI calculator! ****") fmt.Println("*****************************************************") fmt.Println("\n\nLet's get started!") var a, b, c int = 1, 1, 3 var operator, resume, valid string = "", "y", "n" for c == 3 { fmt.Println("Please enter your first int: ") _, err := fmt.Scan(&a) if err != nil { fmt.Println("Invalid;", err) os.Exit(0) } fmt.Println("Please enter your second int: ") _, err2 := fmt.Scan(&b) if err2 != nil { fmt.Println("Invalid;", err2) os.Exit(0) } fmt.Println("Please choose your operator (+ - * /): ") _, err3 := fmt.Scan(&operator) if err3 != nil { fmt.Println("Invalid;", err3) os.Exit(0) } //Choose an operator. switch operator { case "/": fmt.Println("Your equation is ", a, operator, b, "=", a/b, ". \nWould you like to go again? (y/n): ") case "*": fmt.Println("Your equation is ", a, operator, b, "=", a*b, ". \nWould you like to go again? (y/n): ") case "-": fmt.Println("Your equation is ", a, operator, b, "=", a-b, ". \nWould you like to go again? (y/n): ") case "+": fmt.Println("Your equation is ", a, operator, b, "=", a+b, ". \nWould you like to go again? (y/n): ") default: fmt.Println("Invalid input.") } _, err4 := fmt.Scan(&resume) if err4 != nil { fmt.Println("Invalid;", err4) os.Exit(0) } //Do we repeat the process? for valid == "n" { switch resume { case "y": valid := "y" _ = valid case "yes": valid := "y" _ = valid case "yeS": valid := "y" _ = valid case "yES": valid := "y" _ = valid case "yEs": valid := "y" _ = valid case "Y": valid := "y" _ = valid case "Yes": valid := "y" _ = valid case "YeS": valid := "y" _ = valid case "YEs": valid := "y" _ = valid case "YES": valid := "y" _ = valid case "n": valid := "y" _ = valid case "N": valid := "y" _ = valid case "no": valid := "y" _ = valid case "No": valid := "y" _ = valid case "nO": valid := "y" _ = valid case "NO": valid := "y" _ = valid default: fmt.Println("Invalid input. Calculate again? (y/n): ") _, err5 := fmt.Scan(&resume) if err5 != nil { fmt.Println("Invalid;", err5) } } } } }

I'm looking for anyone here who uses Google's Go programming language (commonly referred to as Golang) that might be interested in helping out with some projects of mine (especially if you use Discord and like Discord bots, I'm looking for you guys :D), or even just anyone who uses the language that likes sharing ideas and experiences with using the language. I always see things about C/C++ or Java or other languages, but never anything about the late-coming language that many people seem to have never heard of yet end up loving it when they find out about it (like me!). For those who don't know, Go is an assembly-compiled language created by Google that runs on various architectures and in various operating system environments. I've used it for multiple purposes to date, such as my Discord bot Clinet and an in-development networking protocol called Lilac (which runs atop the IP protocol and alongside TCP/UDP and other networking protocols, also not yet available due to its alpha state). Chances are, if you can do it in C or C++, you can do it in Go, and that on top of the easier-to-understand syntax is what drove me to try it out and wind up loving it in the end. Hope to see some Gophers around here soon~!