etilite/qr-coder repository overview

⁠qr-coder

Lightweight microservice written in Go to generate QR-codes in png format.

By default, qr-coder adds to content UTF-8 BOM prefix for better unicode-compatibility with scanners.

⁠Usage

⁠Quick Start with Docker

docker run --rm -p 8080:8080 -e HTTP_ADDR=:8080 etilite/qr-coder:latest

This will start the service and expose its API on port 8080.

⁠API

⁠Request

• POST /generate

{
  "size": 256,
  "content": "https://github.com/etilite/qr-coder"
}

• size in pixels of image side, int
• content is a string to encode, string

Request Example:

Using cURL, you can make a request like this:

curl --location 'localhost:8080/generate' \
--header 'Content-Type: application/json' \
--data '{
  "size": 256,
  "content": "https://github.com/etilite/qr-coder"
}' -o img.png

⁠Response

The response will be a binary PNG file with the encoded content.