I need to ensure that the processing of the first item ('http://www.google.com') in array2 is completed before starting on the second item (''). However, the request is asynchronous so the current result is:
http://www.google.com
http://www.amazon.com
http://www.apple.com
1
2
.
.
What I actually want is:
http://www.google.com
1
2
3
.
.
http://www.amazon.com
1
2
.
.
Here is my code:
var async = require('async');
var request = require('request');
var array1 = ['http://www.google.com', 'http://www.amazon.com',
'http://www.apple.com'];
var array2 = [1, 2, 3, 4, 5, 6, 7, 8, 9];
array1.each(function (item, callback) {
console.log(item);
aa(item, callback)
})
function aa(url) {
request(url, function (err, res, html) {
array2.forEach(function (item, callback) {
//This part involves crawling the current page
console.log(item);
sleep(1000);
});
})
}
Can anyone suggest a way to achieve this?