ipp-browser

IPP-browser is a powerful library that brings the power of Internet Printing Protocol (IPP) directly into the browser. Inspired by the work of William Kapke, this library extends the use of IPP to the browser. With this library, you can easily integrate printing to IPP-compatible network devices directly from your web applications without having to rely on additional plugins or software.

Installation

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npm

$ npm install @cphillips/ipp-browser --save

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yarn

$ yarn add @cphillips/ipp-browser

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API

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Printer(url [,options])

To interact with a printer, create a Printer object. ​ options:

• charset - Specifies the value for the 'attributes-charset' attribute of requests. Defaults to utf-8.
• language - Specifies the value for the 'attributes-natural-language' attribute of requests. Defaults to en-us.
• uri - Specifies the value for the 'printer-uri' attribute of requests. Defaults to ipp://+url.host+url.path.
• version - Specifies the value for the 'version' attribute of requests. Defaults to 2.0. ​ ​

Printer.encodeMsg(operation, msg)

Converts an IPP message object to IPP binary. ​

• 'operation' - There are many operations defined by IPP. See: /lib/types.ts.
• 'message - A javascript object to be serealized into an IPP binary message. ​ ​

Printer.getHeaders(headers?)

Returns the heades to be included in your request ​

• 'headers' - The headers you want to add to the request. ​ ​

Usage/Example

Create a print request

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import axios from 'axios'
import PDFDocument from 'pdfkit'
import concat from 'concat-stream'
import Printer from './lib/printer'

var doc = new PDFDocument({ margin: 5 });

doc.pipe(concat(function (data: any) {

    let url = "http://192.168.4.62:631/ipp/print"
    let printer = new Printer(url);
    let msg = {
        "operation-attributes-tag": {
            "document-format": "application/pdf",
        },
        data: data,
    };

    axios
        .post(url, printer.encodeMsg("Print-Job", msg), {
            responseType:"arraybuffer",
            headers: printer.getHeaders(),
        })
        .then((response:any) => {
            console.log(printer.decodeMsg(response.data))
        });


}))
​

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License

​ MIT