Merge branch 'about-action-tsx' into 'develop'

Convert about action to TypeScript

See merge request soapbox-pub/soapbox-fe!1461

app/soapbox/actions/about.ts

@@ -0,0 +1,29 @@
+import { AnyAction } from 'redux';
+
+import { staticClient } from '../api';
+
+const FETCH_ABOUT_PAGE_REQUEST = 'FETCH_ABOUT_PAGE_REQUEST';
+const FETCH_ABOUT_PAGE_SUCCESS = 'FETCH_ABOUT_PAGE_SUCCESS';
+const FETCH_ABOUT_PAGE_FAIL = 'FETCH_ABOUT_PAGE_FAIL';
+
+const fetchAboutPage = (slug = 'index', locale?: string) => (dispatch: React.Dispatch<AnyAction>, getState: any) => {
+  dispatch({ type: FETCH_ABOUT_PAGE_REQUEST, slug, locale });
+
+  const filename = `${slug}${locale ? `.${locale}` : ''}.html`;
+  return staticClient.get(`/instance/about/${filename}`)
+    .then(({ data: html }) => {
+      dispatch({ type: FETCH_ABOUT_PAGE_SUCCESS, slug, locale, html });
+      return html;
+    })
+    .catch(error => {
+      dispatch({ type: FETCH_ABOUT_PAGE_FAIL, slug, locale, error });
+      throw error;
+    });
+};
+
+export {
+  fetchAboutPage,
+  FETCH_ABOUT_PAGE_REQUEST,
+  FETCH_ABOUT_PAGE_SUCCESS,
+  FETCH_ABOUT_PAGE_FAIL,
+};