# Draft system

✋ CAUTION

The native Draft & Publish feature has been released in Strapi v3.2. We suggest you to use the native feature instead of this guide.

This guide is still useful if you want to see the concept of "force filtering" in action.

This guide will explain how to create a draft system that will allow you to manage draft, published, and archive status.

# Introduction

What we want here is to fetch only data that has a published status.

But we don't want to use parameters (eg. /articles?status=published) because you can easily fake the params.

To be able to do that, you have first to understand some concepts.

When you create a content type, it generates an API with the following list of endpoints.

Each of these endpoint triggers a controller action. Here is the list of controller actions that exist by default when a content type is created.

If you check the controller file of your generated API ./api/{content-type}/controller/{Content-Type}.js, you will see an empty file. It is because all the default logic is managed by Strapi. But you can override these actions with your own code.

And that is what we will do to filter to published status by default.

# Example

In our example we will use an Article content type. By default, when you fetch articles you will get all articles. Let's consider you don't want to expose articles that are in draft or archive status.

To enforce this rule we will customize the action that fetches all articles to just fetch published articles.

To follow the example you will have to create a content type articles and add the following field definitions:

  • string attribute named title
  • text attribute named content
  • enumeration attribute named status with draft, published, archive
"attributes": {
    "title": {
      "type": "string"
    },
    "content": {
      "type": "text"
    },
    "status": {
      "type": "enumeration",
      "enum": [
        "archive",
        "draft",
        "published"
      ]
    }
  }

Then add some data with different status.

# Override controller action

To customize the function that fetches all our articles we will have to override the find function.

First, to see the difference, let's request GET /articles. You will see all the data you created. Now let's start the customization.

Path — ./api/article/controller/Article.js

module.exports = {
  async find() {
    return 'strapi';
  },
};

After saving the new function, let's restart the GET /articles request. We will see strapi as response.

# Get the data back

We now know the function we have to update, but we just want to customize the returned article values.

In the controller documentation you will find the default implementation of every action. It will help you overwrite the fetch logic.

Path — ./api/article/controller/Article.js

const { sanitizeEntity } = require('strapi-utils');

module.exports = {
  async find(ctx) {
    let entities;
    if (ctx.query._q) {
      entities = await strapi.services.article.search(ctx.query);
    } else {
      entities = await strapi.services.article.find(ctx.query);
    }

    return entities.map(entity => sanitizeEntity(entity, { model: strapi.models.article }));
  },
};

And now the data is back on GET /articles

# Apply our changes

Here we want to force it to fetch articles that have status equal to published.

The way to do that is to set ctx.query.status to published. It will force the filter of the query.

Path — ./api/article/controller/Article.js

const { sanitizeEntity } = require('strapi-utils');

module.exports = {
  async find(ctx) {
    let entities;

    ctx.query = {
      ...ctx.query,
      status: 'published',
    };

    if (ctx.query._q) {
      entities = await strapi.services.article.search(ctx.query);
    } else {
      entities = await strapi.services.article.find(ctx.query);
    }

    return entities.map(entity => sanitizeEntity(entity, { model: strapi.models.article }));
  },
};

And tada! Draft and archived articles disappeared.

💡 TIP

This guide can be applied to any other controller action.

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