Using crypto-js in React

Question

I generated an app using create-react-app and I want to use crypto-js I am getting the following error

crypto.sha256() is not a function

score 25 · Accepted Answer · answered Dec 15 '17 at 06:19

25

You gotta install crypto-js using

npm install crypto-js

In your js files, you have to import module you wanna use

import sha256 from 'crypto-js/sha256';

Now you can use those functions

sha256(nonce + message);

You have do define message and nonce before this

answered Dec 15 '17 at 06:19

sudo bangbang

Thanks, can you please explain to me why doesn't `import * as crypto from crypto-js` work? – Ryan Dec 15 '17 at 15:17
@RyanDsouza, in-order to do `import *`, all modules has to be exported. That's not the case with `crypto-js` if you look at the code for `sha256.js`, https://github.com/brix/crypto-js/blob/develop/src/sha256.js. They're just defining a function . Check out my other answer about how export and import works in node https://stackoverflow.com/questions/21117160/what-is-export-default-in-javascript/43951115#43951115 – sudo bangbang Dec 16 '17 at 03:21

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