server.js

var SenecaWeb = require('seneca-web')
var express = require('express');
var Router = express.Router;
var context = new Router();

var senecaWebConfig = {
      context: context,
      adapter: require('seneca-web-adapter-express'),
      options: { parseBody: false } // if you want to use body parser, put this in
};

var app = express()
      .use( require('body-parser').json() )
      .use( context )
      .listen(3000);

var seneca = require('seneca')()
      .use(SenecaWeb, senecaWebConfig )
      .use('./api.js')
      .client( { type:'tcp', pin:'role:todo' } );