Receipt thermal printer in Electron










1















I need to find a way of printing receipts in javascript from Electron. I already tried QZ-TRAY but it doesn't work because of Electron. I also tried node-thermal-printer but it also never worked for me. Does anybody here know how you can print receipts without asking the user in javascript (Electron)?










share|improve this question






















  • What document format is the receipt in?

    – Randy Casburn
    Nov 11 '18 at 23:03











  • Nothing at the moment I just want to print a line like a Hello World

    – Gilbert Gabriel
    Nov 11 '18 at 23:04











  • OK then, define "doesn't work".

    – Randy Casburn
    Nov 11 '18 at 23:05











  • Well with QZ my problem was RSVP is not defined and with node-thermal-printer, the printer just never printed.

    – Gilbert Gabriel
    Nov 11 '18 at 23:11











  • for QZ it took all of 20secs to find this: qz.io/wiki/2.0-api-overrides

    – Randy Casburn
    Nov 11 '18 at 23:14















1















I need to find a way of printing receipts in javascript from Electron. I already tried QZ-TRAY but it doesn't work because of Electron. I also tried node-thermal-printer but it also never worked for me. Does anybody here know how you can print receipts without asking the user in javascript (Electron)?










share|improve this question






















  • What document format is the receipt in?

    – Randy Casburn
    Nov 11 '18 at 23:03











  • Nothing at the moment I just want to print a line like a Hello World

    – Gilbert Gabriel
    Nov 11 '18 at 23:04











  • OK then, define "doesn't work".

    – Randy Casburn
    Nov 11 '18 at 23:05











  • Well with QZ my problem was RSVP is not defined and with node-thermal-printer, the printer just never printed.

    – Gilbert Gabriel
    Nov 11 '18 at 23:11











  • for QZ it took all of 20secs to find this: qz.io/wiki/2.0-api-overrides

    – Randy Casburn
    Nov 11 '18 at 23:14













1












1








1








I need to find a way of printing receipts in javascript from Electron. I already tried QZ-TRAY but it doesn't work because of Electron. I also tried node-thermal-printer but it also never worked for me. Does anybody here know how you can print receipts without asking the user in javascript (Electron)?










share|improve this question














I need to find a way of printing receipts in javascript from Electron. I already tried QZ-TRAY but it doesn't work because of Electron. I also tried node-thermal-printer but it also never worked for me. Does anybody here know how you can print receipts without asking the user in javascript (Electron)?







javascript html printing electron






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share|improve this question











share|improve this question




share|improve this question










asked Nov 11 '18 at 22:58









Gilbert GabrielGilbert Gabriel

158




158












  • What document format is the receipt in?

    – Randy Casburn
    Nov 11 '18 at 23:03











  • Nothing at the moment I just want to print a line like a Hello World

    – Gilbert Gabriel
    Nov 11 '18 at 23:04











  • OK then, define "doesn't work".

    – Randy Casburn
    Nov 11 '18 at 23:05











  • Well with QZ my problem was RSVP is not defined and with node-thermal-printer, the printer just never printed.

    – Gilbert Gabriel
    Nov 11 '18 at 23:11











  • for QZ it took all of 20secs to find this: qz.io/wiki/2.0-api-overrides

    – Randy Casburn
    Nov 11 '18 at 23:14

















  • What document format is the receipt in?

    – Randy Casburn
    Nov 11 '18 at 23:03











  • Nothing at the moment I just want to print a line like a Hello World

    – Gilbert Gabriel
    Nov 11 '18 at 23:04











  • OK then, define "doesn't work".

    – Randy Casburn
    Nov 11 '18 at 23:05











  • Well with QZ my problem was RSVP is not defined and with node-thermal-printer, the printer just never printed.

    – Gilbert Gabriel
    Nov 11 '18 at 23:11











  • for QZ it took all of 20secs to find this: qz.io/wiki/2.0-api-overrides

    – Randy Casburn
    Nov 11 '18 at 23:14
















What document format is the receipt in?

– Randy Casburn
Nov 11 '18 at 23:03





What document format is the receipt in?

– Randy Casburn
Nov 11 '18 at 23:03













Nothing at the moment I just want to print a line like a Hello World

– Gilbert Gabriel
Nov 11 '18 at 23:04





Nothing at the moment I just want to print a line like a Hello World

– Gilbert Gabriel
Nov 11 '18 at 23:04













OK then, define "doesn't work".

– Randy Casburn
Nov 11 '18 at 23:05





OK then, define "doesn't work".

– Randy Casburn
Nov 11 '18 at 23:05













Well with QZ my problem was RSVP is not defined and with node-thermal-printer, the printer just never printed.

– Gilbert Gabriel
Nov 11 '18 at 23:11





Well with QZ my problem was RSVP is not defined and with node-thermal-printer, the printer just never printed.

– Gilbert Gabriel
Nov 11 '18 at 23:11













for QZ it took all of 20secs to find this: qz.io/wiki/2.0-api-overrides

– Randy Casburn
Nov 11 '18 at 23:14





for QZ it took all of 20secs to find this: qz.io/wiki/2.0-api-overrides

– Randy Casburn
Nov 11 '18 at 23:14












1 Answer
1






active

oldest

votes


















1














Quoting the relevant comments...





"Well with QZ my problem was RSVP is not defined and with node-thermal-printer, the printer just never printed."




"for QZ it took all of 20secs to find this: https://qz.io/wiki/2.0-api-override"




Posting as asolution as the comments suggest it worked. Credits to @gilbert-gabriel for the help.



The RSVP promises are enabled by default, but native JS promises are supported via:



qz.api.setPromiseType(resolver => new Promise(resolver));


A more comprehensive example:



// Install dependencies:
/*
npm install qz-tray js-sha256
*/

// Provide API overrides and start talking to QZ Tray:
import * as qz from 'qz-tray';
import sha256 from 'js-sha256';

qz.api.setSha256Type(data => sha256(data));
qz.api.setPromiseType(resolver => new Promise(resolver));

qz.websocket.connect()
.then(qz.printers.getDefault)
.then(printer => console.log("The default printer is: " + printer))
.then(qz.websocket.disconnect)
.catch(err => console.error(err));





share|improve this answer


















  • 1





    Thanks you for putting it all in an example I need to redo this and it really helped!

    – Gilbert Gabriel
    Jan 25 at 20:56










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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









1














Quoting the relevant comments...





"Well with QZ my problem was RSVP is not defined and with node-thermal-printer, the printer just never printed."




"for QZ it took all of 20secs to find this: https://qz.io/wiki/2.0-api-override"




Posting as asolution as the comments suggest it worked. Credits to @gilbert-gabriel for the help.



The RSVP promises are enabled by default, but native JS promises are supported via:



qz.api.setPromiseType(resolver => new Promise(resolver));


A more comprehensive example:



// Install dependencies:
/*
npm install qz-tray js-sha256
*/

// Provide API overrides and start talking to QZ Tray:
import * as qz from 'qz-tray';
import sha256 from 'js-sha256';

qz.api.setSha256Type(data => sha256(data));
qz.api.setPromiseType(resolver => new Promise(resolver));

qz.websocket.connect()
.then(qz.printers.getDefault)
.then(printer => console.log("The default printer is: " + printer))
.then(qz.websocket.disconnect)
.catch(err => console.error(err));





share|improve this answer


















  • 1





    Thanks you for putting it all in an example I need to redo this and it really helped!

    – Gilbert Gabriel
    Jan 25 at 20:56















1














Quoting the relevant comments...





"Well with QZ my problem was RSVP is not defined and with node-thermal-printer, the printer just never printed."




"for QZ it took all of 20secs to find this: https://qz.io/wiki/2.0-api-override"




Posting as asolution as the comments suggest it worked. Credits to @gilbert-gabriel for the help.



The RSVP promises are enabled by default, but native JS promises are supported via:



qz.api.setPromiseType(resolver => new Promise(resolver));


A more comprehensive example:



// Install dependencies:
/*
npm install qz-tray js-sha256
*/

// Provide API overrides and start talking to QZ Tray:
import * as qz from 'qz-tray';
import sha256 from 'js-sha256';

qz.api.setSha256Type(data => sha256(data));
qz.api.setPromiseType(resolver => new Promise(resolver));

qz.websocket.connect()
.then(qz.printers.getDefault)
.then(printer => console.log("The default printer is: " + printer))
.then(qz.websocket.disconnect)
.catch(err => console.error(err));





share|improve this answer


















  • 1





    Thanks you for putting it all in an example I need to redo this and it really helped!

    – Gilbert Gabriel
    Jan 25 at 20:56













1












1








1







Quoting the relevant comments...





"Well with QZ my problem was RSVP is not defined and with node-thermal-printer, the printer just never printed."




"for QZ it took all of 20secs to find this: https://qz.io/wiki/2.0-api-override"




Posting as asolution as the comments suggest it worked. Credits to @gilbert-gabriel for the help.



The RSVP promises are enabled by default, but native JS promises are supported via:



qz.api.setPromiseType(resolver => new Promise(resolver));


A more comprehensive example:



// Install dependencies:
/*
npm install qz-tray js-sha256
*/

// Provide API overrides and start talking to QZ Tray:
import * as qz from 'qz-tray';
import sha256 from 'js-sha256';

qz.api.setSha256Type(data => sha256(data));
qz.api.setPromiseType(resolver => new Promise(resolver));

qz.websocket.connect()
.then(qz.printers.getDefault)
.then(printer => console.log("The default printer is: " + printer))
.then(qz.websocket.disconnect)
.catch(err => console.error(err));





share|improve this answer













Quoting the relevant comments...





"Well with QZ my problem was RSVP is not defined and with node-thermal-printer, the printer just never printed."




"for QZ it took all of 20secs to find this: https://qz.io/wiki/2.0-api-override"




Posting as asolution as the comments suggest it worked. Credits to @gilbert-gabriel for the help.



The RSVP promises are enabled by default, but native JS promises are supported via:



qz.api.setPromiseType(resolver => new Promise(resolver));


A more comprehensive example:



// Install dependencies:
/*
npm install qz-tray js-sha256
*/

// Provide API overrides and start talking to QZ Tray:
import * as qz from 'qz-tray';
import sha256 from 'js-sha256';

qz.api.setSha256Type(data => sha256(data));
qz.api.setPromiseType(resolver => new Promise(resolver));

qz.websocket.connect()
.then(qz.printers.getDefault)
.then(printer => console.log("The default printer is: " + printer))
.then(qz.websocket.disconnect)
.catch(err => console.error(err));






share|improve this answer












share|improve this answer



share|improve this answer










answered Jan 17 at 17:37









tresftresf

1,5201050




1,5201050







  • 1





    Thanks you for putting it all in an example I need to redo this and it really helped!

    – Gilbert Gabriel
    Jan 25 at 20:56












  • 1





    Thanks you for putting it all in an example I need to redo this and it really helped!

    – Gilbert Gabriel
    Jan 25 at 20:56







1




1





Thanks you for putting it all in an example I need to redo this and it really helped!

– Gilbert Gabriel
Jan 25 at 20:56





Thanks you for putting it all in an example I need to redo this and it really helped!

– Gilbert Gabriel
Jan 25 at 20:56



















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