title: Directus - how to show Many2Many relationship in api
body: <p>I am trying to make a blog in Directus.
  I created Blog Collection and Categories Collection.
  I am using junction table with many to many relationship to connect categories to blog.
  I can create a new blog post and select category from category collection and I can add a new category also.
  But when I am calling in api, it is not showing the category field in my rest api call. 
  I can call category endpoint and view the list of all the categories in rest api but in blog collection endpoint, I cant view related category name.</p>
  
  <p>I want to view all the selected category name to each blog posts in my rest api.
  And I want to view all the blog posts when I call category collection in my rest api by putting category name like <strong>projectname/items/categories/aliens/</strong> so I can see all the blog posts of aliens categories.</p>
  
  <p>Currently I am getting this by calling my blog collection in json - </p>
  
  <pre><code>{
    "data": [
      {
        "id": 1,
        "status": "published",
        "owner": 1,
        "created_on": "2020-03-16 21:15:25",
        "blog_title": "first blog post title",
        "blog_content": "&lt;p&gt;sdlkjfhsdkfol8ysdmfhj sd,fh klsdhf msoiudf oihsdyfghm soreht4,7shetc,oiuh,scenclkr&lt;/p&gt;\n&lt;p&gt;&lt;strong&gt;dsfgdsfgds&lt;/strong&gt;&lt;/p&gt;"
      }
    ]
  }
  </code></pre>
  
  <p>How to get the category name on rest api ? </p>
  
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