made print_client callable

client/printing/print_client.js

@@ -2,19 +2,18 @@ const grpc = require('grpc');
 const fs = require('fs')
 var messages = require('./print_pb');
 var services = require('./print_grpc_pb');
-const printOptions = {
- 'sides': 'one-sided',
- 'page-ranges': 'NA'
-};
 
-function main() {
- let contents = fs.readFileSync(__dirname + '/../sample.pdf', 'base64');
+function sendPrintRequest(raw, copies, sides, pageRanges, destination) {
+ printOptions = {
+ 'sides': sides,
+ 'page-ranges': pageRanges
+ };
  let client = new services.PrinterClient('localhost:50051',
  grpc.credentials.createInsecure());
  let request = new messages.PrintRequest();
- request.setCopies(1);
- request.setDestination('HP-LaserJet-p2015dn');
- request.setEncodedFile(contents);
+ request.setCopies(copies);
+ request.setDestination(destination);
+ request.setEncodedFile(raw);
  for (let key in printOptions) {
  request.getOptionsMap().set(key, printOptions[key]);
  }
@@ -24,4 +23,4 @@ function main() {
  });
 }
 
-main()
+module.exports = { sendPrintRequest }