How to customize Strapi backend (content-manager) controllers, services and validation?

Questions and Answers Strapi Backend
17

So for v4, to update the controllers that are called when you CRUD in the Content Manager, you can now follow the flow described here:

  1. Create a file called ./src/extensions/content-manager/strapi-server.js. With following boiler plate:
module.exports = (plugin) => {
  let original = plugin.controllers.["collection-types"].find;
  plugin.controllers.["collection-types"].find = (ctx) => {
     // Do your thing
     // Call original function
     original(ctx)
  };

  return plugin;
};
  1. To find what exists, you can check node_modules/@strapi/plugin-content-manager/server/controllers; each file there corresponds to the key in plugin.controllers, and each function inside of the exports can be overwritten. (in the example I used collection-types and find respectively).
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