Golang

Part 1 , Part 2 Go is an excellent choice for writing your next http service. It supports multithreaded request handling with the standard library and many other convenient features that makes creating a new application a breeze. Here is an example of a http service that returns the current time as json. Playground: https://go.dev/play/p/gZGKLEhHkPR package main import ( "encoding/json" "log" "net/http" "time" ) // Response is a simple json response // that will be returned by the http server // the json tags are used to specify the // json keys type Response struct { Status string `json:"status"` // json key is "status" Time string `json:"time"` // json key is "time" } // this is a simple http server that returns a json response func main() { // create a new http serve mux // the serve mux is used to register http handlers // for different paths mux := http....

Part 1 , Part 2 , Part 3 , Part 4 , Part 5 Goroutines can be used to start independent long running task. These tasks can be entire microservices, which is very useful for creating a single application with multiple system responsibilities. The select statement will block and wait for a channel to be ready for reading, then after reading from the channel the code will be executed. Playground: https://go....

Part 1 , Part 2 , Part 3 , Part 4 , Part 5 Buffered Channels in Go are similar to unbuffered channels, but they allow a writer to write without blocking if the channel is not full, which can be useful for concurrent data processing where the reader needs to be decoupled. However, using buffered channels can consume memory even when the buffer is empty, so they should be used with care....

Playground , Repo Why do you need concurrency limiting? Concurrency limiting in your go application might be necessary to limit overuse of a specific resource. This could be an API rate limit, slow network connection, slow disk I/O operation or limited CPU/RAM. Starting a huge number of go routines that use a limited resource could cause your application to crash. If you are experiencing crashes or errors on a resource intensive task then I would recommend implementing a concurrency limiter....

Part 1 , Part 2 , Part 3 , Part 4 , Part 5 In Go, critical sections refer to parts of your code that manipulate a resource which must be accessed by only one goroutine at a time. By using a mutex, you can temporarily lock a critical section, perform the operation, and then unlock it, allowing other goroutines to access the resource. Attempting to lock a critical section in a goroutine will block execution until the lock can be acquired....