AWS Lambda Dynamic Endpoint

Question

Is there a way to use dynamic endpoints with AWS Lambda?

From what I can tell you need to specific the endpoint in the AWS Lamda Console.

What I need to do is access the URL from database then get the JSON for that URL. The URL will be added contantly by users so I cant possible log in every second to manually add an endpoint.

Considering that I set up my Lambda to Node.JS

I thought that I could just use:

    // ----receive function----v
function get_json(url, callback) {
    http.get(url, function(res) {
        var body = '';
        res.on('data', function(chunk) {
            body += chunk;
        });

        res.on('end', function() {
            var response = JSON.parse(body);
// call function ----v
            callback(response);
        });
    });
}

         // -----------the url---v         ------------the callback---v
var mydata = get_json("http://api.openweathermap.org/data/2.5/weather?id=2172797&appid=b1b15e88fa797225412429c1c50c122a", function (resp) {
    console.log(resp);
});

but I get this error:

"errorMessage": "http is not defined"

What I need is a way to ue a dynamic URL for the JSON

Can someone help?

What makes you think you can't connect to the database from within your Lambda function to retrieve the URL you need to hit? — Mark B, Mar 21 '16 at 02:55
http://stackoverflow.com/questions/31809890/can-aws-lambda-connect-to-rds-mysql-database-and-update-the-database — Mark B, Mar 21 '16 at 02:55
Well it is difficult to understand as written. Perhaps stick to a single question and ask it clearly. — Mark B, Mar 21 '16 at 03:19
There is only one question on there. Unless pedantic and count the ? - but the second refers to the first. However it no longer matters as my problem was a simple mistake in invocation. I apologise that it was unclear (my head is a little frazzled from looking through pages and pages of docs) and I do thank you for your help :) P.S Will endeavour to write clearer answers :) — JamesG, Mar 21 '16 at 03:58

score 1 · Answer 1 · answered Mar 20 '16 at 23:17

You need to define var http = require('http'); before using http.get.

    var http = require('http');

    function get_json(url, callback) {
        http.get(url, function(res) {
            var body = '';
            res.on('data', function(chunk) {
                body += chunk;
            });

            res.on('end', function() {
                var response = JSON.parse(body);
    // call function ----v
                callback(response);
            });
        });
    }

             // -----------the url---v         ------------the callback---v
    var mydata = get_json("http://api.openweathermap.org/data/2.5/weather?id=2172797&appid=b1b15e88fa797225412429c1c50c122a", function (resp) {
        console.log(resp);
    });

AWS Lambda Dynamic Endpoint

1 Answers1