cryptr | Very basic encrypt and decrypt node module | Encryption library

i am using react quill editor for my project and using my backend server to image upload but i need to access props inside the image handler of react quill and i am unable to do so as not able to access this object inside image handler. here is my editor code.

i have quill editor in react project and image handler is being used to upload image but i have to add class to all the image element in the quill editor. here is my code for image handler

I recently updated my electronJS app to a higher version together with electron-builder. I have no issues running the app with "npm start", however when I try to build it using electron-builder I get the following error when running "npm run dist":

$ npm run dist

myapp@1.0.0 dist C:\Projects\myapp build

'build' is not recognized as an internal or external command, operable program or batch file. npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! myapp@1.0.0 dist: build npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the myapp@1.0.0 dist script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in: npm ERR!
C:\Users\User\AppData\Roaming\npm-cache_logs\2019-12-05T11_35_33_988Z-debug.log

package.json:

So I am encrypting fields in the database, but I don't think i can encrypt the user's username or email because I use those fields to find the user. I could hash them instead, but since I don't think I can use a unique salt per username/email someone could just use a rainbow table to find the hidden username/email.

I guess this it is ok to not encrypt them? I would like to make the website as secure as possible. Would hashing them make sense? I could find a user by their _id instead of username/email, but I wouldn't have their _id until I find the user.

What I am doing currently:

full error is

This is my index.js ER_PARSE_ERROR: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''sada'' at line 1

I am trying to build an authentication system so, i used node , mysql,express for that so now i am simply saving and checking user exist in database can access but now i added JWT to it, so now i want this JWT token to store in localstorage or in cookies so, can someone guide me how can i do so

this is my authentication controller.js

I am creating and login signup system using express js mysql and node js, so as soon as i click on submit button i get an error as :

Cannot POST /public/register-controller

my index.html

I'm working on a React\Redux project, bundled with webpack.

After upgrading webpack V1 to V3, IE (11) support is broken, some of the elements have the attached css rules and IE can't handle it.
On google chrome everything is OK.

package.json:

I have a .zip file, which contains node_modules and a utils folders,
I upload the .zip on AWS Lambda Layer, but I am unable to fetch all the dependencies on the AWS Lambda function,

I believe the issues could be about the package.json, but
I tried deleting the node_modules, package-lock.json and reinstalling the dependencies using npm install command.
The dependencies seem to be downloaded on local but, when I upload them on Layers, they just disappear.

Root folder -

Sub directories under layer folder -

node_modules -

package.json-