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app.js
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app.js
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/**
* Copyright 2015 IBM Corp. 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.
*/
const express = require('express');
const NaturalLanguageUnderstandingV1 = require('watson-developer-cloud/natural-language-understanding/v1.js');
const app = express();
let nlu;
if (process.env.NATURAL_LANGUAGE_UNDERSTANDING_IAM_APIKEY
&& process.env.NATURAL_LANGUAGE_UNDERSTANDING_IAM_APIKEY !== '') {
nlu = new NaturalLanguageUnderstandingV1({
version: '2018-04-05',
url: process.env.NATURAL_LANGUAGE_UNDERSTANDING_URL || 'https://gateway.watsonplatform.net/natural-language-understanding/api',
iam_apikey: process.env.NATURAL_LANGUAGE_UNDERSTANDING_IAM_APIKEY || '<iam_apikey>',
iam_url: process.env.ASSISTANT_IAM_URL || 'https://iam.bluemix.net/identity/token',
});
} else {
nlu = new NaturalLanguageUnderstandingV1({
version: '2018-04-05',
url: process.env.NATURAL_LANGUAGE_UNDERSTANDING_URL || 'https://gateway.watsonplatform.net/natural-language-understanding/api',
username: process.env.NATURAL_LANGUAGE_UNDERSTANDING_USERNAME || '<username>',
password: process.env.NATURAL_LANGUAGE_UNDERSTANDING_PASSWORD || '<password>',
});
}
// setup body-parser
const bodyParser = require('body-parser');
app.use(bodyParser.json());
// Bootstrap application settings
require('./config/express')(app);
app.get('/', (req, res) => {
res.render('index');
});
app.post('/api/analyze', (req, res, next) => {
if (process.env.SHOW_DUMMY_DATA) {
res.json(require('./payload.json'));
} else {
nlu.analyze(req.body, (err, results) => {
if (err) {
return next(err);
}
return res.json({ query: req.body.query, results });
});
}
});
// error-handler settings
require('./config/error-handler')(app);
module.exports = app;