Stop The Creation of Data in BeforeCreate Lifecycle Callback Hook

System Information
  • Strapi Version: 3.3.1
  • Operating System: MacOS 10.15.7
  • Database: SQLite
  • Node Version: v12.16.1
  • Yarn Version: 1.22.4

So I’m making one of the beforeCreate callback lifecycle hooks for a model called link. And I’m looking for a way to possibly stop the creation of data.

For instance, this is an example of what I want to happen ( At the TODO ).

module.exports = {
  lifecycles: {
    beforeCreate(data) {
    
    	if (isNaughtyLink(data.link)) {
    		// TODO Stop here! dont allow the entry to be made, how'd I do this?
    	}
    	
    },
  },
};
module.exports = {
  lifecycles: {
    beforeCreate(data) {
    	if (isNaughtyLink(data.link)) {
    		//throw error here, it will prevent the entry creation
    		throw new Error('You Shall Not Pass!!!');
    	}
    },
  },
};

It is not recommended to throw errors inside lifecycle, as it will throw also the error inside console.
If you have Sentry configured than it will also log the error into sentry.

1 Like

You can also validate the link field with regex expression inside Admin UI.

Since throwing an error here causing 500 in response, so how to prevent creating the entry along with sending a custom error like 400 bad request?

Thanks.

Just to improve this answer a bit:

module.exports = {
      lifecycles: {
        beforeCreate(data) {
        	if (isNaughtyLink(data.link)) {
        		//throw error here, it will prevent the entry creation
        		throw strapi.errors.badRequest('Some message you want to show in the admin UI');
        	}
        },
      },
    };