Simple Go Application

A simple Go web application that prints environment variables and provides HTTP endpoints.

Features

• Environment Variables Display: Prints all environment variables in a prettified format on startup
• Hello World Endpoint: Simple HTTP endpoint that returns a JSON response
• Environment Variables API: HTTP endpoint that returns all environment variables as JSON

Endpoints

• GET / - Hello World endpoint
• GET /env - Returns all environment variables as JSON

Running the Application

1. Make sure you have Go installed (version 1.21 or later)
2. Navigate to the project directory
3. Run the application:

go run main.go

The application will:

1. Print all environment variables to the console in a prettified format
2. Start an HTTP server on port 8080 (or the port specified in the PORT environment variable)

Example Usage

Start the server

go run main.go

Access the Hello World endpoint

curl http://localhost:8080/

Access the Environment Variables endpoint

curl http://localhost:8080/env

Environment Variables

• PORT: Specify the port for the HTTP server (defaults to 8080)

Build and Run

To build a binary:

go build -o simple-go-app main.go
./simple-go-app

Output Format

Console Output

Environment variables are printed in a sorted, formatted table with truncated values for readability.

JSON Responses

All HTTP endpoints return properly formatted JSON responses with appropriate headers.