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12 min readBuilding Go modules in Docker involves creating a Dockerfile that specifies the required dependencies, setting up the Go environment, and building the Go program within the container. Here's a step-by-step guide on how to accomplish this:Create a new Dockerfile for your Go project. This file will define the Docker image and its configuration. You can use any text editor to create this file. Specify the base image on which you want to build your Go project.
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6 min readTo get an IP address from socket.io in Golang, you can follow these steps:First, establish a connection with the socket.io server using a Golang library like gorilla/websocket.Once the connection is established, you will receive a http.Request object as a parameter in the Upgrade method of the websocket library.Access the remote IP address from the http.Request object by calling the RemoteAddr() method. This will return a net.Addr object.To get the IP address from the net.
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9 min readTo reuse a MongoDB connection in Go, you can follow these steps:Import the necessary MongoDB packages in your Go code: import ( "context" "log" "time" "go.mongodb.org/mongo-driver/mongo" "go.mongodb.org/mongo-driver/mongo/options" ) Create a MongoDB client instance that will be used to establish a connection: func createMongoClient() (*mongo.
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8 min readTo remove white spaces in Go, you can use the "strings" package along with regular expressions. The steps to remove white spaces are as follows:Import the necessary packages: import ( "strings" "regexp" ) Use the regexp.MustCompile function to create a regular expression pattern to match white spaces: pattern := regexp.
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9 min readIn Go, you can import files from the current directory by specifying a relative path to the file you want to import. Here are the steps:Create a Go source file in the current directory where you want to import other files.At the beginning of the file, use the package directive to define the package name.Use the import keyword followed by the relative path to the file you want to import. If the file is in the same directory, simply provide the filename without any path.
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9 min readCreating a shared queue in Go involves using synchronization mechanisms provided by the language to ensure safe access and modification of the queue by multiple goroutines. Here is a step-by-step explanation of how to create a shared queue in Go:Define a struct for the queue: Create a struct that represents the shared queue, which will hold the necessary data fields. For example, you can define a struct with a slice to hold the elements and other fields like the size, head, tail, etc.
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9 min readTo convert a GMT date to Unix time in Golang, you can follow the steps below:First, you need to parse the GMT date string into a time.Time object using the time.Parse() function. The Parse() function takes two parameters: a layout string specifying the date format and the GMT date string to be parsed. The layout string should be based on the reference time "Mon Jan 2 15:04:05 MST 2006".
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5 min readTo create Android apps using Delphi, you need to follow a few key steps.First, you need to have Embarcadero Delphi installed on your computer. Delphi is a powerful cross-platform development tool that allows you to build applications for multiple platforms, including Android.Once you have Delphi installed, open the IDE (Integrated Development Environment) and start a new project. From the project templates, select "Mobile Application" to create a new Android app.
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4 min readTo draw a number to an image in Delphi 7, you can follow these steps:Start by creating a new project in Delphi 7 or open an existing project. Place a TImage component on your form. This component will hold the image that you want to draw the number on. You can find it in the "Standard" tab of the Component Palette. Double-click on the TImage component to open the code editor and navigate to the Form's OnCreate event handler.
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6 min readTo open a URL with HTTP authentication in Delphi, you can use the TIdHTTP component from the Indy library. This component provides functionality for making HTTP requests, including handling authentication.Here is an example of how to open a URL with HTTP authentication in Delphi:First, make sure you have the Indy components installed in your Delphi IDE. If not, you can download them from the Indy Project website. Create a new Delphi application or open an existing one.
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5 min readTo rotate a PNG image in Delphi, you can use the built-in functions and features provided by the Delphi programming language. Follow the steps described below:Load the PNG image into a TPicture object: Create an instance of TPicture: var PngImage: TPicture; Load the PNG image from a file or stream into the TPicture: PngImage.LoadFromFile('path_to_image.