ThermalPrinterInterface/index.js at master · ParanoidBat/ThermalPrinterInterface · GitHub

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const express = require('express');
const ThermalPrinter = require("node-thermal-printer").printer;
const Types = require("node-thermal-printer").types;

var app = express();

app.get('/print', async(req, res) => {
    example();

    res.send("hit on print");
});

app.get('/', (req, res) => {
    res.send("Hit /")
});

app.listen(3000, ()=>{
    console.log("listening on port 3000...")
});

async function example () {
    let printer = new ThermalPrinter({
      type: Types.EPSON,
      interface: 'printer:EPSON TM-T88V Receipt',
      driver: require('printer'),
      options: {
        timeout: 1000
      },
      width: 46,
      characterSet: 'SLOVENIA',
      removeSpecialCharacters: false,
      lineCharacter: "=",
    });

    let isConnected = await printer.isPrinterConnected();
    console.log("Printer connected:", isConnected);

    printer.alignCenter();
    await printer.printImage('./assets/olaii-logo-black.png');
    printer.newLine();
    await printer.printImage('./assets/olaii-logo-black-small.png');
    printer.newLine();
    await printer.printImage('./assets/olaii-logo-black-smaller.png');

    printer.alignLeft();
    printer.newLine();
    printer.println("Hello World!");
    printer.drawLine();

    printer.upsideDown(true);
    printer.println("Hello World upside down!");
    printer.upsideDown(false);
    printer.drawLine();

    printer.invert(true);
    printer.println("Hello World inverted!");
    printer.invert(false);
    printer.drawLine();

    printer.println("Special characters: ČčŠšŽžĐđĆćßẞöÖÄäüÜé");
    printer.drawLine();

    printer.setTypeFontB();
    printer.println("Type font B");
    printer.setTypeFontA();
    printer.println("Type font A");
    printer.drawLine();

    printer.alignLeft();
    printer.println("This text is on the left");
    printer.alignCenter();
    printer.println("This text is in the middle");
    printer.alignRight();
    printer.println("This text is on the right");
    printer.alignLeft();
    printer.drawLine();

    printer.setTextDoubleHeight();
    printer.println("This is double height");
    printer.setTextDoubleWidth();
    printer.println("This is double width");
    printer.setTextQuadArea();
    printer.println("This is quad");
    printer.setTextSize(7,7);
    printer.println("Wow");
    printer.setTextSize(0,0);
    printer.setTextNormal();
    printer.println("This is normal");
    printer.drawLine();

    try {
      printer.printBarcode("4126570807191");
      printer.beep();
    } catch (error) {
      console.error(error);
    }

    printer.pdf417("4126565129008670807191");
    printer.printQR("https://olaii.com");

    printer.newLine();

    printer.leftRight("Left", "Right");

    printer.table(["One", "Two", "Three", "Four", "Five", "Six "]);

    printer.tableCustom([
      { text:"Left", align:"LEFT", width:0.5 },
      { text:"Center", align:"CENTER", width:0.25, bold:true },
      { text:"Right", align:"RIGHT", width:0.25 }
    ]);

    printer.tableCustom([
      { text:"Left", align:"LEFT", cols:8 },
      { text:"Center", align:"CENTER", cols:10, bold:true },
      { text:"Right", align:"RIGHT", cols:10 }
    ]);

    printer.cut();
    // printer.openCashDrawer();

    try {
      await printer.execute();
      console.log("Print success.");
    } catch (error) {
      console.error("Print error:", error);
    }
}