let solc; process.on('message', function(msg) { if (msg.action === 'loadCompiler') { solc = require('solc'); process.send({result: "loadedCompiler"}); } if (msg.action === 'compile') { let output = solc.compile(msg.obj, msg.optimize); process.send({result: "compilation", output: output}); } }); process.on('exit', function() { process.exit(0); });