base64 JSON encoded strings in nodejs

Question

How do I create a base64 JSON encoded strings in nodejs?

I tried this and it didn't work.

var buff = new Buffer({"hello":"world"}).toString("base64");

Is this it?

var buff = new Buffer(JSON.stringify({"hello":"world"})).toString("base64");

Looks like you've asked and answered your own question here... — sgress454
– sgress454, Commented Mar 19, 2014 at 18:39
Buffer accepts either an integer, an array or a string. But not an object. If you want an object to be converted to JSON, you have to do this explicitly, just like you did in your second example. nodejs.org/api/buffer.html — Felix Kling
– Felix Kling, Commented Mar 19, 2014 at 18:40

vighnesh153 · Accepted Answer · 2020-12-08 04:04:31Z

23

To complete @ladenedge's comment for clarity reasons:

var buff = Buffer.from(JSON.stringify({"hello":"world"})).toString("base64")

vighnesh153

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answered Aug 2, 2019 at 23:18

cpres

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Comments

ThomasReggi · Accepted Answer · 2014-03-19 18:49:53Z

20

var buff = new Buffer(JSON.stringify({"hello":"world"})).toString("base64");

answered Mar 19, 2014 at 18:49

ThomasReggi

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The constructor has since been deprecated. Use Buffer.from() in Node v6 and higher.

This is nice, but why for crying out load the result of btoa({"hello":"world"}) is totally different, i would expect them to be the same

Saurabh Talreja · Accepted Answer · 2020-10-21 10:46:59Z

1

You can always prettify above code by providing some spacing, so that when some one decode it back to JSON String it would look good.

var buff = Buffer.from(JSON.stringify({"hello":"world"},undefined,n)).toString("base64")

n = 1 to 10 (Spacing)

answered Oct 21, 2020 at 10:46

Saurabh Talreja

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