Accessing JSON API via node.js

Question

I'd like to access the JSON on

"https://blockchain.info/tx-index/"+txs[i]+"?format=json"

But each time I try to access it with the request, http, or https modules, I can never seem to get any information. The callback is never called, and as near as I can tell, the function doesn't return anything.

Since I'm apparently an idiot in javascript, can you help me out?

Edit: I also tried another method described on here, but it doesn't seem to work either. It always returns undefined.

function httpGet(url)   {
    var xmlHttp = new XMLHttpRequest();
    xmlHttp.open("GET",url,false);
    xmlHttp.send();
    return xmlHttp.resonpose;
}

Edit: Full loop code:

        index = 0;
        txs = info.x.txIndexes;
        for (i = 0; i < txs.length; i++)    {
            console.log(i);
            request.get("https://blockchain.info/tx-index/"+txs[i]+"?format=json&cors=true", function(error,response,body)  {
                console.log("body");
                txs[index] = JSON.parse(body);
                index++;
            });
            var time = Date.now() + 1000;
            while (Date.now() < time)
                var a = true;
            txs[i] = txt;
        }

I've tried several different versions. I'll post the most recent. — gabe appleton
– gabe appleton, Commented Aug 2, 2015 at 20:06
I have actually loaded said module. Every time I try to use it it returns undefined. — gabe appleton
– gabe appleton, Commented Aug 2, 2015 at 20:09

Community · Accepted Answer · 2017-05-23 12:14:01Z

1

function httpGet(url)   {
    var xmlHttp = new XMLHttpRequest();
    xmlHttp.open("GET",url,false);
    xmlHttp.send();
    return xmlHttp.resonpose;
}

resonpose is spelt response, but the more generally useful property name is responseText.

Your attempt to use request.get is failing for a completely different reason, but that is covered by this question as your load event handler is using the wrong value for i.

edited May 23, 2017 at 12:14

CommunityBot

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answered Aug 2, 2015 at 20:10

Quentin

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2 Comments

gabe appleton Over a year ago

Whoops, transcription typo :)

gabe appleton Over a year ago

Weird. Returning response results in undefined. Returning responseText results in the correct result. Thank you!

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