sending numeric JSON response in node/express

Question

If I have this response -

{
  type: "2",
  userId: "123"
}

While sending the response, I want the values to convert to numeric. Is there any way in node/express to do this?

Try this question - http://stackoverflow.com/questions/6858293/sending-json-response-as-string-and-integers — suyesh, Aug 08 '16 at 07:16
I don't want to convert it field by field. Isn't there any other way where I send my JSON in the function and it returns the updated JSON? — nirvair, Aug 08 '16 at 07:18

score 0 · Answer 1 · answered Aug 08 '16 at 07:24

0

var _ = require('underscore');

var data = { type: "2", userId: "123" };

var result = _.keys(data);

result.forEach(function (key) { data[key] = Number(data[key]) });

console.log(data);

answered Aug 08 '16 at 07:24

Meena

97
2

score 0 · Answer 2 · answered Aug 08 '16 at 07:37

0

we can use parseInt() to convert string to int type.

var data = { type: parseInt("2"), userId:  parseInt("2") };

response.send(data);

answered Aug 08 '16 at 07:37

shan kulkarni

849
7
18

score 0 · Answer 3 · answered Aug 08 '16 at 10:41

Directly answer is

var a = {type: "2", userId: "123", text: "ABC"};
res.send(JSON.stringify(a, function(key, value) { return parseInt(value) || value}));

Express have special method to stringify object and send it - res.json, but this method doesn't support replacer function.

sending numeric JSON response in node/express

3 Answers3