45 lines
1.1 KiB
JavaScript
45 lines
1.1 KiB
JavaScript
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// pass through api requests
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// http(s) modules
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const https = require('https');
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// url parsing
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const queryString = require('querystring');
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// return an express router
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module.exports = (req, res) => {
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// add out-going headers
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const headers = {};
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headers['user-agent'] = '(WeatherStar 4000+, ws4000@netbymatt.com)';
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headers['accept'] = req.headers.accept;
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// get query paramaters if the exist
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const queryParams = Object.keys(req.query).reduce((acc, key) => {
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// skip the paramater 'u'
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if (key === 'u') return acc;
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// add the paramter to the resulting object
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acc[key] = req.query[key];
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return acc;
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},{});
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let query = queryString.encode(queryParams);
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if (query.length > 0) query = '?' + query;
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// get the page
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https.get('https://www.cpc.ncep.noaa.gov/' + req.path + query, {
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headers,
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}, getRes => {
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// pull some info
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const {statusCode} = getRes;
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// pass the status code through
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res.status(statusCode);
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// set headers
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res.header('content-type', getRes.headers['content-type']);
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res.header('last-modified', getRes.headers['last-modified']);
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// pipe to response
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getRes.pipe(res);
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}).on('error', e=>{
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console.error(e);
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});
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};
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