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index.js
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index.js
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const Crawler = require('crawler');
const getMetaData = require('./getMD');
var metaData;
async function ksk(kskUrls,rate) {
if(rate === undefined){ //rate must be a number
rate =0;
}
return new Promise((resolve, reject) => {
const results = [];
const c = new Crawler({
rateLimit: rate,
callback: (error, res, done) => {
if (error) {
console.log(error);
reject(error);
} else {
if(!Array.isArray(kskUrls)){ //if url not arr then just resolve it
resolve(getMetaData(res));
return
}
//else create array elem for each obj
results.push(getMetaData(res));
if (results.length === kskUrls.length) {
resolve(results);
}
}
done();
},
});
if(!Array.isArray(kskUrls)){
c.queue(kskUrls)
}else{
kskUrls.forEach(url => c.queue(url));
}
});
}
module.exports = ksk;