Go NFC library example code

This is an example code for reading a NFC/RFID tag with a reader using NFC library for Go. The NFC library requires to have libnfc 1.8.0+ installed on your device.

I was using a Raspberry Pi with PN532 and followed the instructions from Adafruit: Building libnfc on Raspberry Pi .

Building libnfc for PN532

1. Get and extract the libnfc:

    cd ~
    mkdir libnfc && cd libnfc/
    wget https://github.com/nfc-tools/libnfc/releases/download/libnfc-1.8.0/libnfc-1.8.0.tar.bz2
    tar -xvjf libnfc-1.8.0.tar.bz2

   Next two steps depend on your reader and it's configuration of libnfc

2. Create PN532 configuration:

    cd libnfc-1.8.0
    sudo mkdir /etc/nfc
    sudo mkdir /etc/nfc/devices.d
    sudo cp contrib/libnfc/pn532_uart_on_rpi.conf.sample /etc/nfc/devices.d/pn532_uart_on_rpi.conf 
    sudo nano /etc/nfc/devices.d/pn532_uart_on_rpi.conf

3. Update the pn532_uart_on_rpi.conf:

   allow_intrusive_scan = true
   

4. Install dependencies for building:

    sudo apt-get install autoconf
    sudo apt-get install libtool
    sudo apt-get install libpcsclite-dev libusb-dev
    autoreconf -vis
    ./configure --with-drivers=pn532_uart --sysconfdir=/etc --prefix=/usr

5. Build the library:

   sudo make clean
   sudo make install all

Running the code:

Clone the repo:

git clone https://github.com/xBlaz3kx/nfc-reader-go-example/

Install the libnfc, then run:

go run nfc-reader-example.go 

or

 go build nfc-reader-example.go && ./nfc-reader-example