Fails to work with node-thermal-printer since Buffer passed is referenced instead of copied

[andidev]

First thanks for the cleanest version of the node printer forks out there! 🎊

All seems to work fine except the Buffer reference logic.
When using this lib with https://github.com/Klemen1337/node-thermal-printer then you get the following error when trying to print something

#
# Fatal error in v8::HandleScope::CreateHandle()
# Cannot create a handle without a HandleScope
#

it looks like n-api cannot handle refefrences so instead would be better to write to file or copy the buffer instead with the current logic that already exists in current implementation.
I will go ahead and create a PR for this with the hope this fork will be maintained.

[andidev]

@ssxv let me know if you will maintain this fork. If not I will create a new one based on this and try to maintain it.

[ssxv]

@andidev Thank you. I will review your PR. I have plans to maintain this.

If this package needs to work with https://github.com/Klemen1337/node-thermal-printer, then their function isPrinterConnected needs to internally await the library's getPrinter method. I will try and get that fixed.

[andidev]

Great! When you released it I will go ahead and create another pr for node thermal printer lib.
Thanks

[ssxv]

I will release this after a round of thorough testing.

I have created this PR in node-thermal-printer library Klemen1337/node-thermal-printer#278

[ssxv]

@andidev I released @ssxv/node-printer@0.1.6 with your changes.

However, on testing I found that it only works on windows.

Now I have rewritten the library to be truly cross platform.
I have published the new changes @ssxv/node-printer@1.0.0

Here is how you can use it with node-thermal-printer
https://github.com/ssxv/node-printer/wiki/Node-Thermal-Printer-Integration#node-thermal-printer-integration