This is almost definitely a very, very bad idea. Instead of trying to
serialise your code into JSON, you can just put it in a regular JavaScript
file and require() it. For example, instead of this:
// code.json
{"myFunction":"function(a) { console.log(a); }"}
var code = JSON.parse(fs.readFileSync("./code.json"));
/* magic, insecure function stuff from your post */
code.myFunction("hello");
Do this:
// code.js
exports.myFunction = function(a) { console.log(a); }
var code = require("./code.js");
/* look ma, no magic */
code.myFunction("hello");
I shudder to think of why you might be doing things the way you are - are
you trying to fetch code from somewhere else and run it?
On Friday, 25 July 2014 03:09:19 UTC+10, Rohit Harchandani wrote:
>
> Hi,
> This is the code that I am using to parse the JSON string.
>
> var recData = JSON.parse(recDataString, function (key, value) {
>
> if (value && (typeof value === 'string') && value.indexOf("function") ===
> 0) {
>
> var jsFunc = new Function('return ' + value)();
>
> return jsFunc;
>
> }
>
> return value;
>
> });
>
> console.log( "Type: " + typeof recData["runFunction"] )
>
>
> runFunction in the json is a function which is something like this:
>
>
> function() {
>
> require("fs");
>
>
>
>
> On Thu, Jul 24, 2014 at 2:58 AM, Ryan Schmidt <[email protected]
> <javascript:>> wrote:
>
>>
>> On Jul 23, 2014, at 6:46 PM, Rohit Harchandani wrote:
>>
>> > Hi, I have just started playing around with node.js for a project. I
>> parsed a JSON object which had a javascript function and when I tried to
>> execute the function on the node.js server, I kept getting this error:
>> > ReferenceError: require is not defined
>> > I am sure i parsed the JSON object correctly to get the function, but
>> not sure how to run this function.
>>
>> The JSON format does not accommodate functions, only data.
>>
>> Perhaps you should show us some code so that we can more easily
>> understand the problem you're encountering.
>>
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