server.js

/**
 * Copyright 2017 Google Inc. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
'use strict';

var http = require('http');
// var apiai = require("../module/apiai");
var apiai = require("apiai");

var app = apiai("YOUR_ACCESS_TOKEN");

var code = 405;

var server = http.createServer(function(request, response) {
    if (request.method == 'POST' && request.url == '/upload') {
        var voiceRequest = app.voiceRequest();

        voiceRequest.on('response', function(_response) {
            response.end(JSON.stringify(_response));
        });

        voiceRequest.on('error', function(error) {
            console.log(error);
            response.end();
        });

        request.on('data', function(chunk) {
            voiceRequest.write(chunk);
        });

        request.on('end', function() {
            voiceRequest.end();
        });
    } else {
        response.writeHead(code, {});
        response.end();
    }

    console.log(request.headers);
});

server.listen(8000);

// cat ann_smith.wav | curl -v -X POST --data-binary @- -H "Transfer-Encoding: chunked" -H "Content-Type: audio/wav" http://localhost:8000/upload