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79 lines
2.0 KiB
Markdown
79 lines
2.0 KiB
Markdown
# QRCode Terminal
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[](https://travis-ci.org/mdp/qrterminal)
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A golang library for generating QR codes in the terminal.
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Originally this was a port of the [NodeJS version](https://github.com/gtanner/qrcode-terminal). Recently it's been updated to allow for smaller code generation using ASCII 'half blocks'
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## Example
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Full size ASCII block QR Code:
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<img src="https://user-images.githubusercontent.com/2868/37992336-0ba06b56-31d1-11e8-9d32-5c6bb008dc74.png" alt="alt text" width="225" height="225">
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Smaller 'half blocks' in the terminal:
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<img src="https://user-images.githubusercontent.com/2868/37992371-243d4238-31d1-11e8-92f8-e34a794b21af.png" alt="alt text" width="225" height="225">
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## Install
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`go get github.com/mdp/qrterminal`
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## Usage
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```go
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import (
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"github.com/mdp/qrterminal"
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"os"
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)
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func main() {
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// Generate a 'dense' qrcode with the 'Low' level error correction and write it to Stdout
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qrterminal.Generate("https://github.com/mdp/qrterminal", qrterminal.L, os.Stdout)
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}
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```
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### More complicated
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Large Inverted barcode with medium redundancy and a 1 pixel border
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```go
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import (
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"github.com/mdp/qrterminal"
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"os"
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)
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func main() {
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config := qrterminal.Config{
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Level: qrterminal.M,
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Writer: os.Stdout,
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BlackChar: qrterminal.WHITE,
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WhiteChar: qrterminal.BLACK,
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QuietZone: 1,
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}
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qrterminal.GenerateWithConfig("https://github.com/mdp/qrterminal", config)
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}
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```
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HalfBlock barcode with medium redundancy
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```go
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import (
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"github.com/mdp/qrterminal"
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"os"
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)
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func main() {
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config := qrterminal.Config{
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HalfBlocks: true,
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Level: qrterminal.M,
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Writer: os.Stdout,
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}
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qrterminal.Generate("https://github.com/mdp/qrterminal", config)
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}
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```
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Credits:
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Mark Percival m@mdp.im
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[Matthew Kennerly](https://github.com/mtkennerly)
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[Viric](https://github.com/viric)
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[WindomZ](https://github.com/WindomZ)
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[mattn](https://github.com/mattn)
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