feat: Convert all app files to JS

packages/backend/src/apps/hubspot/auth/refresh-token.js

@@ -0,0 +1,27 @@
+import { URLSearchParams } from 'url';
+
+const refreshToken = async ($) => {
+  const oauthRedirectUrlField = $.app.auth.fields.find(
+    (field) => field.key == 'oAuthRedirectUrl'
+  );
+
+  const callbackUrl = oauthRedirectUrlField.value;
+
+  const params = new URLSearchParams({
+    grant_type: 'refresh_token',
+    client_id: $.auth.data.clientId,
+    client_secret: $.auth.data.clientSecret,
+    redirect_uri: callbackUrl,
+    refresh_token: $.auth.data.refreshToken,
+  });
+
+  const { data } = await $.http.post('/oauth/v1/token', params.toString());
+
+  await $.auth.set({
+    accessToken: data.access_token,
+    expiresIn: data.expires_in,
+    refreshToken: data.refresh_token,
+  });
+};
+
+export default refreshToken;