Request Node Module Variable Scope

Question

This has been getting to me for a while. So, I am trying to create a function that uses request and returns body of the request, using the request node module. Here is my code:

req = require("request")
foo = req("https://www.youtube.com", function(err, resp, body){
    bar = body
})
console.log(bar)

This, sadly, returns ReferenceError: bar is not defined Anyone able to help? Please test your answer before you post it, because I have tried almost EVERYTHING I can think of.

you have to initialize every variable with `var`: `var bar;` `var foo = ... { bar = body }` `console.log(bar);` — Slavik, Mar 19 '16 at 12:04
logging `bar` outside the `req` function will return nothing especially considering bar has not been defined. Do you get the same result when log `bar` after `bar = body;`? — AVDW, Mar 19 '16 at 12:07
but you have asynchronous call, so `console.log(bar)` anyway prints 'undefined' — Slavik, Mar 19 '16 at 12:07
Slavik: I already tried that. AVDW: It works, but that is not what I wanted. — TigerGold, Mar 19 '16 at 21:58

score 0 · Answer 1 · answered Mar 19 '16 at 12:06

0

Try this:

var request = require("request")
request("https://www.youtube.com", function(err, resp, body){
    bar = body;
    console.log(bar);
});

answered Mar 19 '16 at 12:06

Zeeshan Hassan Memon

8,105
4
43
57

I am trying to make a function that returns the value bar. For this, that would not work because you cannot specify a return value for the containing function in a function – TigerGold Mar 19 '16 at 21:56
I got it. NO more answers required. – TigerGold Mar 19 '16 at 22:52
great, if you got clue how async works and how you could get it working the please mark asnwer correct – Zeeshan Hassan Memon Mar 20 '16 at 07:01

score 0 · Answer 2 · answered Mar 19 '16 at 12:07

0

ofcourse it well return ReferenceError: bar is not defined because bar it define only inide the req and also your console.log should be inside the req

req = require("request")
foo = req("https://www.youtube.com", function(err, resp, body){
    var bar = body;
    console.log(bar);
})

answered Mar 19 '16 at 12:07

elreeda

4,525
2
18
45

I know why, I just do not know how to do it. Also, the code above will be in a function that returns the value bar. – TigerGold Mar 19 '16 at 21:57

Request Node Module Variable Scope

2 Answers2