Need for a Hook/Event on Entity Duplication in Strapi

General
2

Search about lifecycle.js.

So you can catch the event of duplication like this;

src/api/article/content-types/article/lifecycles.js

export default {
async beforeCreate(event) {
const { data } = event.params;

const existing = await strapi.entityService.findMany('api::article.article', {
  filters: {
    title: data.title,
  },
});

if (existing.length > 0) {
  throw new Error('already exists!');
}

// 
// strapi.log.warn(`Duplicate entry detected for title: ${data.title}`);

},
};

i strongly suggest to use AI tool in the page of strapi doc.

Also you can create a plugin for more flexible solution but i belive lifecycle hooks may solve your issue.

Love Strapi :heart: