React + Node.js: JWT Authentication with Express & MySQL example

Please ,help me!
Unhandled rejection SequelizeForeignKeyConstraintError: Cannot add or update a child row: a foreign key constraint fails (`testdb`.`user_roles`, CONSTRAINT `user_roles_ibfk_1` FOREIGN KEY (`roleId`) REFERENCES `roles` (`id`) ON DELETE CASCADE ON UPDATE CASCADE)
at Query.formatError (C:\Users\Dell\Desktop\node-js-jwt-auth-master\node-js-jwt-auth-master\node_modules\sequelize\lib\dialects\mysql\query.js:233:16)
at Query.handler [as onResult] (C:\Users\Dell\Desktop\node-js-jwt-auth-master\node-js-jwt-auth-master\node_modules\sequelize\lib\dialects\mysql\query.js:51:23)
at Query.execute (C:\Users\Dell\Desktop\node-js-jwt-auth-master\node-js-jwt-auth-master\node_modules\mysql2\lib\commands\command.js:30:14)
at Connection.handlePacket (C:\Users\Dell\Desktop\node-js-jwt-auth-master\node-js-jwt-auth-master\node_modules\mysql2\lib\connection.js:417:32)
at PacketParser.onPacket (C:\Users\Dell\Desktop\node-js-jwt-auth-master\node-js-jwt-auth-master\node_modules\mysql2\lib\connection.js:75:12)
at PacketParser.executeStart (C:\Users\Dell\Desktop\node-js-jwt-auth-master\node-js-jwt-auth-master\node_modules\mysql2\lib\packet_parser.js:75:16)
at Socket.<anonymous> (C:\Users\Dell\Desktop\node-js-jwt-auth-master\node-js-jwt-auth-master\node_modules\mysql2\lib\connection.js:82:25)

good tutorial but try to speak that would be great.

Your video would increase in quality by tenfolds if you spoke and explained your ways of doing things.

love the peaceful music

hello im having an error it says Role is not found

yes mannn

umm, probably not the best idea to let the user know that the account doesn't exist... might be a better idea to return invalid user/pass -- just saying

Your work really helped me out, thank you!

Is this in a public repo? I see all the tutorial links but no github links.

I need Source code pls pls 🙏🙏

Great code.

Good Tutorial. Please add your voice next time...It will be more helpful.

The tutorial is very helpful, it could be a lot better if you'v explained it.

you are the best all the time so far.

Why in the hell would you treat this like a PowerPoint presentation and not provide some sort of repository or link to a workspace for something like this.

Thank you ♥ For Making My Learning Process Much Easier

I almost cried because of music. Thanks for nice demo, now I feel I can make it.

Dude, could you please share the backend repository?

hello how can i find source file for this

21 minutes of the same music is crazy