The latest articles on DEV Community by Josh Robertson (@hossman333). https://dev.to/hossman333 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F50347%2F7a95d80b-233b-4fcd-8632-d22bc4629ed4.jpg https://dev.to/hossman333 en Josh Robertson Tue, 26 Feb 2019 00:21:37 +0000 https://dev.to/hossman333/reasonml-warning-unimplemented-primitive-used-1nhi https://dev.to/hossman333/reasonml-warning-unimplemented-primitive-used-1nhi <p>If you run into the issue <code>Warning: Unimplemented primitive used:put</code> or whatever <code>put</code> is for you, it's probably because you forgot to include the <code>[@bs.module "&lt;library&gt;"]</code> or any other FFI before your wrapping.</p> <p>For example:<br> </p> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code>external putJson: (string, Js.Json.t) =&gt; request = "put"; </code></pre> </div> <p>which gave me the error above ^. The fix?<br> </p> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code>[@bs.module "superagent"] external putJson: (string, Js.Json.t) =&gt; request = "put"; </code></pre> </div> <p>At least that was the case for me. (:</p> reason functional errors