title: Contentful GraphQL endpoint: how to retrieve all entries of a content type
body: <pre><code>{
    Post {
        name
    }
  }
  </code></pre>
  <p>While trying to retrieve all the entries on a content type, it only gives error of:</p>
  <pre><code>&quot;Argument \&quot;id\&quot; of required type \&quot;String!\&quot; was not provided.&quot;
  </code></pre>
  <p>Since <code>id</code> field is required. How do I get all entries of a content type then?</p>
  <p>Ref: <a href="https://www.contentful.com/developers/docs/references/graphql/" rel="nofollow noreferrer">https://www.contentful.com/developers/docs/references/graphql/</a></p>