diff --git a/src/App.js b/src/App.js
index 7b71d24..68b8f2d 100644
--- a/src/App.js
+++ b/src/App.js
@@ -2,7 +2,7 @@ import React from "react";
 import { Admin, Resource, resolveBrowserLocale } from "react-admin";
 import polyglotI18nProvider from "ra-i18n-polyglot";
 import authProvider from "./synapse/authProvider";
-import dataProvider from "./dataProvider";
+import dataProvider from "./synapse/dataProvider";
 import LoginPage from "./components/LoginPage";
 import germanMessages from "./i18n/de";
 import englishMessages from "./i18n/en";
@@ -24,7 +24,7 @@ const App = () => (
     dataProvider={dataProvider}
     i18nProvider={i18nProvider}
   >
-    <Resource name="data" />
+    <Resource name="users" />
   </Admin>
 );
 
diff --git a/src/dataProvider.js b/src/dataProvider.js
deleted file mode 100644
index fb57c93..0000000
--- a/src/dataProvider.js
+++ /dev/null
@@ -1,13 +0,0 @@
-const dataProvider = {
-  getList: (resource, params) => Promise,
-  getOne: (resource, params) => Promise,
-  getMany: (resource, params) => Promise,
-  getManyReference: (resource, params) => Promise,
-  create: (resource, params) => Promise,
-  update: (resource, params) => Promise,
-  updateMany: (resource, params) => Promise,
-  delete: (resource, params) => Promise,
-  deleteMany: (resource, params) => Promise,
-};
-
-export default dataProvider;
diff --git a/src/synapse/dataProvider.js b/src/synapse/dataProvider.js
new file mode 100644
index 0000000..441f813
--- /dev/null
+++ b/src/synapse/dataProvider.js
@@ -0,0 +1,220 @@
+import { fetchUtils } from "react-admin";
+import { stringify } from "query-string";
+
+// Adds the access token to all requests
+const jsonClient = (url, options = {}) => {
+  const token = localStorage.getItem("access_token");
+  console.log("httpClient " + url);
+  if (token != null) {
+    options.user = {
+      authenticated: true,
+      token: `Bearer ${token}`,
+    };
+  }
+  return fetchUtils.fetchJson(url, options);
+};
+
+const resourceMap = {
+  users: {
+    path: "/_synapse/admin/v2/users",
+    map: u => ({
+      ...u,
+      id: u.name,
+      is_guest: !!u.is_guest,
+      admin: !!u.admin,
+      deactivated: !!u.deactivated,
+    }),
+    data: "users",
+    total: (json, perPage) => {
+      return parseInt(json.next_token, 10) + perPage;
+    },
+  },
+  rooms: {
+    path: "/_synapse/admin/v1/rooms",
+    map: r => ({
+      ...r,
+      id: r.room_id,
+      alias: r.canonical_alias,
+      members: r.joined_members,
+    }),
+    data: "rooms",
+    total: json => {
+      return json.total_rooms;
+    },
+  },
+};
+
+function filterNullValues(key, value) {
+  // Filtering out null properties
+  if (value === null) {
+    return undefined;
+  }
+  return value;
+}
+
+const dataProvider = {
+  getList: (resource, params) => {
+    console.log("getList " + resource);
+    const { user_id, guests } = params.filter;
+    const { page, perPage } = params.pagination;
+    const query = {
+      from: (page - 1) * perPage,
+      limit: perPage,
+      user_id: user_id,
+      guests: guests,
+    };
+    const homeserver = localStorage.getItem("home_server");
+    if (!homeserver || !(resource in resourceMap)) return Promise.reject();
+
+    const res = resourceMap[resource];
+    const homeserver_url = "https://" + homeserver + res.path;
+    const url = `${homeserver_url}?${stringify(query)}`;
+
+    return jsonClient(url).then(({ json }) => ({
+      data: json[res.data].map(res.map),
+      total: res.total(json, perPage),
+    }));
+  },
+
+  getOne: (resource, params) => {
+    console.log("getOne " + resource);
+    const homeserver = localStorage.getItem("home_server");
+    if (!homeserver || !(resource in resourceMap)) return Promise.reject();
+
+    const res = resourceMap[resource];
+    const homeserver_url = "https://" + homeserver + res.path;
+    return jsonClient(`${homeserver_url}/${params.id}`).then(({ json }) => ({
+      data: res.map(json),
+    }));
+  },
+
+  getMany: (resource, params) => {
+    console.log("getMany " + resource);
+    const homeserver = localStorage.getItem("home_server");
+    if (!homeserver || !(resource in resourceMap)) return Promise.reject();
+
+    const res = resourceMap[resource];
+    const homeserver_url = "https://" + homeserver + res.path;
+    return Promise.all(
+      params.ids.map(id => jsonClient(`${homeserver_url}/${id}`))
+    ).then(responses => ({
+      data: responses.map(({ json }) => res.map(json)),
+    }));
+  },
+
+  getManyReference: (resource, params) => {
+    // FIXME
+    console.log("getManyReference " + resource);
+    const { page, perPage } = params.pagination;
+    const { field, order } = params.sort;
+    const query = {
+      sort: JSON.stringify([field, order]),
+      range: JSON.stringify([(page - 1) * perPage, page * perPage - 1]),
+      filter: JSON.stringify({
+        ...params.filter,
+        [params.target]: params.id,
+      }),
+    };
+
+    const homeserver = localStorage.getItem("home_server");
+    if (!homeserver || !(resource in resourceMap)) return Promise.reject();
+
+    const res = resourceMap[resource];
+    const homeserver_url = "https://" + homeserver + res.path;
+    const url = `${homeserver_url}?${stringify(query)}`;
+
+    return jsonClient(url).then(({ headers, json }) => ({
+      data: json,
+      total: parseInt(
+        headers
+          .get("content-range")
+          .split("/")
+          .pop(),
+        10
+      ),
+    }));
+  },
+
+  update: (resource, params) => {
+    console.log("update " + resource);
+    const homeserver = localStorage.getItem("home_server");
+    if (!homeserver || !(resource in resourceMap)) return Promise.reject();
+
+    const res = resourceMap[resource];
+    const homeserver_url = "https://" + homeserver + res.path;
+    return jsonClient(`${homeserver_url}/${params.id}`, {
+      method: "PUT",
+      body: JSON.stringify(params.data, filterNullValues),
+    }).then(({ json }) => ({
+      data: json,
+    }));
+  },
+
+  updateMany: (resource, params) => {
+    console.log("updateMany " + resource);
+    const homeserver = localStorage.getItem("home_server");
+    if (!homeserver || !(resource in resourceMap)) return Promise.reject();
+
+    const res = resourceMap[resource];
+    const homeserver_url = "https://" + homeserver + res.path;
+    return Promise.all(
+      params.ids.map(id => jsonClient(`${homeserver_url}/${id}`), {
+        method: "PUT",
+        body: JSON.stringify(params.data, filterNullValues),
+      })
+    ).then(responses => ({
+      data: responses.map(({ json }) => json),
+    }));
+  },
+
+  create: (resource, params) => {
+    console.log("create " + resource);
+    const homeserver = localStorage.getItem("home_server");
+    if (!homeserver || !(resource in resourceMap)) return Promise.reject();
+
+    const res = resourceMap[resource];
+    const homeserver_url = "https://" + homeserver + res.path;
+    return jsonClient(`${homeserver_url}/${params.id}`, {
+      method: "PUT",
+      body: JSON.stringify(params.data, filterNullValues),
+    }).then(({ json }) => ({
+      data: {
+        ...params.data,
+        id: json.id,
+      },
+    }));
+  },
+
+  delete: (resource, params) => {
+    console.log("delete " + resource);
+    const homeserver = localStorage.getItem("home_server");
+    if (!homeserver || !(resource in resourceMap)) return Promise.reject();
+
+    const res = resourceMap[resource];
+    const homeserver_url = "https://" + homeserver + res.path;
+    return jsonClient(`${homeserver_url}/${params.id}`, {
+      method: "DELETE",
+    }).then(({ json }) => ({
+      data: json,
+    }));
+  },
+
+  deleteMany: (resource, params) => {
+    console.log("deleteMany " + resource);
+    const homeserver = localStorage.getItem("home_server");
+    if (!homeserver || !(resource in resourceMap)) return Promise.reject();
+
+    const res = resourceMap[resource];
+    const homeserver_url = "https://" + homeserver + res.path;
+    return Promise.all(
+      params.ids.map(id => jsonClient(`${homeserver_url}/${id}`), {
+        method: "DELETE",
+        body: JSON.stringify(params.data, filterNullValues),
+      })
+    ).then(responses => ({
+      data: responses.map(({ json }) => json),
+    }));
+  },
+};
+
+export default dataProvider;