diff --git a/src/components/media.tsx b/src/components/media.tsx
index 29fc204..893b1af 100644
--- a/src/components/media.tsx
+++ b/src/components/media.tsx
@@ -21,15 +21,18 @@ import {
   Toolbar,
   ToolbarProps,
   useCreate,
+  useDataProvider,
   useDelete,
   useNotify,
   useRecordContext,
   useRefresh,
   useTranslate,
 } from "react-admin";
+import { useMutation } from "react-query";
 import { Link } from "react-router-dom";
 
 import { dateParser } from "./date";
+import { DeleteMediaParams, SynapseDataProvider } from "../synapse/dataProvider";
 import { getMediaUrl } from "../synapse/synapse";
 
 const DeleteMediaDialog = ({ open, onClose, onSubmit }) => {
@@ -37,7 +40,7 @@ const DeleteMediaDialog = ({ open, onClose, onSubmit }) => {
 
   const DeleteMediaToolbar = (props: ToolbarProps) => (
     <Toolbar {...props}>
-      <SaveButton label="resources.delete_media.action.send" icon={<DeleteSweepIcon />} />
+      <SaveButton label="delete_media.action.send" icon={<DeleteSweepIcon />} />
       <Button label="ra.action.cancel" onClick={onClose}>
         <IconCancel />
       </Button>
@@ -46,21 +49,21 @@ const DeleteMediaDialog = ({ open, onClose, onSubmit }) => {
 
   return (
     <Dialog open={open} onClose={onClose}>
-      <DialogTitle>{translate("resources.delete_media.action.send")}</DialogTitle>
+      <DialogTitle>{translate("delete_media.action.send")}</DialogTitle>
       <DialogContent>
-        <DialogContentText>{translate("resources.delete_media.helper.send")}</DialogContentText>
+        <DialogContentText>{translate("delete_media.helper.send")}</DialogContentText>
         <SimpleForm toolbar={<DeleteMediaToolbar />} onSubmit={onSubmit}>
           <DateTimeInput
             fullWidth
             source="before_ts"
-            label="resources.delete_media.fields.before_ts"
+            label="delete_media.fields.before_ts"
             defaultValue={0}
             parse={dateParser}
           />
           <NumberInput
             fullWidth
             source="size_gt"
-            label="resources.delete_media.fields.size_gt"
+            label="delete_media.fields.size_gt"
             defaultValue={0}
             min={0}
             step={1024}
@@ -68,7 +71,7 @@ const DeleteMediaDialog = ({ open, onClose, onSubmit }) => {
           <BooleanInput
             fullWidth
             source="keep_profiles"
-            label="resources.delete_media.fields.keep_profiles"
+            label="delete_media.fields.keep_profiles"
             defaultValue={true}
           />
         </SimpleForm>
@@ -81,34 +84,30 @@ export const DeleteMediaButton = (props: ButtonProps) => {
   const theme = useTheme();
   const [open, setOpen] = useState(false);
   const notify = useNotify();
-  const [deleteOne, { isLoading }] = useDelete();
+  const dataProvider = useDataProvider<SynapseDataProvider>();
+  const { mutate: deleteMedia, isLoading } = useMutation(
+    (values: DeleteMediaParams) => dataProvider.deleteMedia(values),
+    {
+      onSuccess: () => {
+        notify("delete_media.action.send_success");
+        closeDialog();
+      },
+      onError: () => {
+        notify("delete_media.action.send_failure", {
+          type: "error",
+        });
+      },
+    }
+  );
 
   const openDialog = () => setOpen(true);
   const closeDialog = () => setOpen(false);
 
-  const deleteMedia = (values: { before_ts: string; size_gt: number; keep_profiles: boolean }) => {
-    deleteOne(
-      "delete_media",
-      // needs meta.before_ts, meta.size_gt and meta.keep_profiles
-      { meta: values },
-      {
-        onSuccess: () => {
-          notify("resources.delete_media.action.send_success");
-          closeDialog();
-        },
-        onError: () =>
-          notify("resources.delete_media.action.send_failure", {
-            type: "error",
-          }),
-      }
-    );
-  };
-
   return (
     <>
       <Button
         {...props}
-        label="resources.delete_media.action.send"
+        label="delete_media.action.send"
         onClick={openDialog}
         disabled={isLoading}
         sx={{
diff --git a/src/i18n/de.ts b/src/i18n/de.ts
index 3438ceb..9fd96ff 100644
--- a/src/i18n/de.ts
+++ b/src/i18n/de.ts
@@ -92,6 +92,22 @@ const de: SynapseTranslationMessages = {
       },
     },
   },
+  delete_media: {
+    name: "Medien",
+    fields: {
+      before_ts: "Letzter Zugriff vor",
+      size_gt: "Größer als (in Bytes)",
+      keep_profiles: "Behalte Profilbilder",
+    },
+    action: {
+      send: "Medien löschen",
+      send_success: "Anfrage erfolgreich versendet.",
+      send_failure: "Beim Versenden ist ein Fehler aufgetreten.",
+    },
+    helper: {
+      send: "Diese API löscht die lokalen Medien von der Festplatte des eigenen Servers. Dies umfasst alle lokalen Miniaturbilder und Kopien von Medien. Diese API wirkt sich nicht auf Medien aus, die sich in externen Medien-Repositories befinden.",
+    },
+  },
   resources: {
     users: {
       name: "Benutzer",
@@ -260,22 +276,6 @@ const de: SynapseTranslationMessages = {
         open: "Mediendatei in neuem Fenster öffnen",
       },
     },
-    delete_media: {
-      name: "Medien",
-      fields: {
-        before_ts: "Letzter Zugriff vor",
-        size_gt: "Größer als (in Bytes)",
-        keep_profiles: "Behalte Profilbilder",
-      },
-      action: {
-        send: "Medien löschen",
-        send_success: "Anfrage erfolgreich versendet.",
-        send_failure: "Beim Versenden ist ein Fehler aufgetreten.",
-      },
-      helper: {
-        send: "Diese API löscht die lokalen Medien von der Festplatte des eigenen Servers. Dies umfasst alle lokalen Miniaturbilder und Kopien von Medien. Diese API wirkt sich nicht auf Medien aus, die sich in externen Medien-Repositories befinden.",
-      },
-    },
     protect_media: {
       action: {
         create: "Ungeschützt, Schutz erstellen",
diff --git a/src/i18n/en.ts b/src/i18n/en.ts
index 626b65d..807535b 100644
--- a/src/i18n/en.ts
+++ b/src/i18n/en.ts
@@ -91,6 +91,22 @@ const en: SynapseTranslationMessages = {
       },
     },
   },
+  delete_media: {
+    name: "Media",
+    fields: {
+      before_ts: "last access before",
+      size_gt: "Larger then (in bytes)",
+      keep_profiles: "Keep profile images",
+    },
+    action: {
+      send: "Delete media",
+      send_success: "Request successfully sent.",
+      send_failure: "An error has occurred.",
+    },
+    helper: {
+      send: "This API deletes the local media from the disk of your own server. This includes any local thumbnails and copies of media downloaded. This API will not affect media that has been uploaded to external media repositories.",
+    },
+  },
   resources: {
     users: {
       name: "User |||| Users",
@@ -258,22 +274,6 @@ const en: SynapseTranslationMessages = {
         open: "Open media file in new window",
       },
     },
-    delete_media: {
-      name: "Media",
-      fields: {
-        before_ts: "last access before",
-        size_gt: "Larger then (in bytes)",
-        keep_profiles: "Keep profile images",
-      },
-      action: {
-        send: "Delete media",
-        send_success: "Request successfully sent.",
-        send_failure: "An error has occurred.",
-      },
-      helper: {
-        send: "This API deletes the local media from the disk of your own server. This includes any local thumbnails and copies of media downloaded. This API will not affect media that has been uploaded to external media repositories.",
-      },
-    },
     protect_media: {
       action: {
         create: "Unprotected, create protection",
diff --git a/src/i18n/fa.ts b/src/i18n/fa.ts
index 7c07f2d..1bee042 100644
--- a/src/i18n/fa.ts
+++ b/src/i18n/fa.ts
@@ -89,6 +89,22 @@ const fa: SynapseTranslationMessages = {
       },
     },
   },
+  delete_media: {
+    name: "رسانه ها",
+    fields: {
+      before_ts: "آخرین دسترسی قبل",
+      size_gt: "بزرگتر از آن (به بایت)",
+      keep_profiles: "تصاویر پروفایل را نگه دارید",
+    },
+    action: {
+      send: "حذف رسانه ها",
+      send_success: "درخواست با موفقیت ارسال شد.",
+      send_failure: "خطایی رخ داده است.",
+    },
+    helper: {
+      send: "این API رسانه های محلی را از دیسک سرور خود حذف می کند. این شامل هر تصویر کوچک محلی و کپی از رسانه دانلود شده است. این API بر رسانه‌هایی که در مخازن رسانه خارجی آپلود شده‌اند تأثیری نخواهد گذاشت.",
+    },
+  },
   resources: {
     users: {
       name: "کاربر |||| کاربران",
@@ -241,22 +257,6 @@ const fa: SynapseTranslationMessages = {
         last_access_ts: "آخرین دسترسی",
       },
     },
-    delete_media: {
-      name: "رسانه ها",
-      fields: {
-        before_ts: "آخرین دسترسی قبل",
-        size_gt: "بزرگتر از آن (به بایت)",
-        keep_profiles: "تصاویر پروفایل را نگه دارید",
-      },
-      action: {
-        send: "حذف رسانه ها",
-        send_success: "درخواست با موفقیت ارسال شد.",
-        send_failure: "خطایی رخ داده است.",
-      },
-      helper: {
-        send: "این API رسانه های محلی را از دیسک سرور خود حذف می کند. این شامل هر تصویر کوچک محلی و کپی از رسانه دانلود شده است. این API بر رسانه‌هایی که در مخازن رسانه خارجی آپلود شده‌اند تأثیری نخواهد گذاشت.",
-      },
-    },
     protect_media: {
       action: {
         create: "محافظت نشده، حفاظت ایجاد کنید",
diff --git a/src/i18n/fr.ts b/src/i18n/fr.ts
index 23b23e3..af54bd6 100644
--- a/src/i18n/fr.ts
+++ b/src/i18n/fr.ts
@@ -92,6 +92,22 @@ const fr: SynapseTranslationMessages = {
       },
     },
   },
+  delete_media: {
+    name: "Media",
+    fields: {
+      before_ts: "Dernier accès avant",
+      size_gt: "Plus grand que (en octets)",
+      keep_profiles: "Conserver les images de profil",
+    },
+    action: {
+      send: "Supprimer le média",
+      send_success: "Requête envoyée avec succès",
+      send_failure: "Une erreur s'est produite",
+    },
+    helper: {
+      send: "Cette API supprime les médias locaux du disque de votre propre serveur. Cela inclut toutes les vignettes locales et les copies des médias téléchargés. Cette API n'affectera pas les médias qui ont été téléversés dans des dépôts de médias externes.",
+    },
+  },
   resources: {
     users: {
       name: "Utilisateur |||| Utilisateurs",
@@ -243,22 +259,6 @@ const fr: SynapseTranslationMessages = {
         last_access_ts: "Dernier accès",
       },
     },
-    delete_media: {
-      name: "Media",
-      fields: {
-        before_ts: "Dernier accès avant",
-        size_gt: "Plus grand que (en octets)",
-        keep_profiles: "Conserver les images de profil",
-      },
-      action: {
-        send: "Supprimer le média",
-        send_success: "Requête envoyée avec succès",
-        send_failure: "Une erreur s'est produite",
-      },
-      helper: {
-        send: "Cette API supprime les médias locaux du disque de votre propre serveur. Cela inclut toutes les vignettes locales et les copies des médias téléchargés. Cette API n'affectera pas les médias qui ont été téléversés dans des dépôts de médias externes.",
-      },
-    },
     protect_media: {
       action: {
         create: "Protéger",
diff --git a/src/i18n/index.d.ts b/src/i18n/index.d.ts
index 4237acb..38635ad 100644
--- a/src/i18n/index.d.ts
+++ b/src/i18n/index.d.ts
@@ -87,6 +87,22 @@ interface SynapseTranslationMessages extends TranslationMessages {
       };
     };
   };
+  delete_media: {
+    name: string;
+    fields: {
+      before_ts: string;
+      size_gt: string;
+      keep_profiles: string;
+    };
+    action: {
+      send: string;
+      send_success: string;
+      send_failure: string;
+    };
+    helper: {
+      send: string;
+    };
+  };
   resources: {
     users: {
       name: string;
@@ -252,22 +268,6 @@ interface SynapseTranslationMessages extends TranslationMessages {
         open: string;
       };
     };
-    delete_media: {
-      name: string;
-      fields: {
-        before_ts: string;
-        size_gt: string;
-        keep_profiles: string;
-      };
-      action: {
-        send: string;
-        send_success: string;
-        send_failure: string;
-      };
-      helper: {
-        send: string;
-      };
-    };
     protect_media?: {
       action: {
         create: string;
diff --git a/src/i18n/it.ts b/src/i18n/it.ts
index ab8a182..bb813c5 100644
--- a/src/i18n/it.ts
+++ b/src/i18n/it.ts
@@ -89,6 +89,22 @@ const it: SynapseTranslationMessages = {
       },
     },
   },
+  delete_media: {
+    name: "Media",
+    fields: {
+      before_ts: "ultimo accesso effettuato prima",
+      size_gt: "Più grande di (in byte)",
+      keep_profiles: "Mantieni le immagini del profilo",
+    },
+    action: {
+      send: "Cancella media",
+      send_success: "Richiesta inviata con successo.",
+      send_failure: "C'è stato un errore.",
+    },
+    helper: {
+      send: "Questa API cancella i media locali dal disco del tuo server. Questo include anche ogni miniatura e copia del media scaricato. Questa API non inciderà sui media che sono stati caricati nei repository esterni.",
+    },
+  },
   resources: {
     users: {
       name: "Utente |||| Utenti",
@@ -242,22 +258,6 @@ const it: SynapseTranslationMessages = {
         last_access_ts: "Ultimo accesso",
       },
     },
-    delete_media: {
-      name: "Media",
-      fields: {
-        before_ts: "ultimo accesso effettuato prima",
-        size_gt: "Più grande di (in byte)",
-        keep_profiles: "Mantieni le immagini del profilo",
-      },
-      action: {
-        send: "Cancella media",
-        send_success: "Richiesta inviata con successo.",
-        send_failure: "C'è stato un errore.",
-      },
-      helper: {
-        send: "Questa API cancella i media locali dal disco del tuo server. Questo include anche ogni miniatura e copia del media scaricato. Questa API non inciderà sui media che sono stati caricati nei repository esterni.",
-      },
-    },
     protect_media: {
       action: {
         create: "Non protetto, proteggi",
diff --git a/src/i18n/zh.ts b/src/i18n/zh.ts
index 1d1922a..86ca9df 100644
--- a/src/i18n/zh.ts
+++ b/src/i18n/zh.ts
@@ -89,6 +89,22 @@ const zh: SynapseTranslationMessages = {
       },
     },
   },
+  delete_media: {
+    name: "媒体文件",
+    fields: {
+      before_ts: "最后访问时间",
+      size_gt: "大于 (字节)",
+      keep_profiles: "保留头像",
+    },
+    action: {
+      send: "删除媒体",
+      send_success: "请求发送成功。",
+      send_failure: "出现了一个错误。",
+    },
+    helper: {
+      send: "这个API会删除您硬盘上的本地媒体。包含了任何的本地缓存和下载的媒体备份。这个API不会影响上传到外部媒体存储库上的媒体文件。",
+    },
+  },
   resources: {
     users: {
       name: "用户",
@@ -224,22 +240,6 @@ const zh: SynapseTranslationMessages = {
         last_access_ts: "上一次访问",
       },
     },
-    delete_media: {
-      name: "媒体文件",
-      fields: {
-        before_ts: "最后访问时间",
-        size_gt: "大于 (字节)",
-        keep_profiles: "保留头像",
-      },
-      action: {
-        send: "删除媒体",
-        send_success: "请求发送成功。",
-        send_failure: "出现了一个错误。",
-      },
-      helper: {
-        send: "这个API会删除您硬盘上的本地媒体。包含了任何的本地缓存和下载的媒体备份。这个API不会影响上传到外部媒体存储库上的媒体文件。",
-      },
-    },
     pushers: {
       name: "发布者",
       fields: {
diff --git a/src/synapse/dataProvider.ts b/src/synapse/dataProvider.ts
index 845fd3d..4bf7450 100644
--- a/src/synapse/dataProvider.ts
+++ b/src/synapse/dataProvider.ts
@@ -201,6 +201,21 @@ interface DestinationRoom {
   stream_ordering: number;
 }
 
+export interface DeleteMediaParams {
+  before_ts: string;
+  size_gt: number;
+  keep_profiles: boolean;
+}
+
+export interface DeleteMediaResult {
+  deleted_media: Identifier[];
+  total: number;
+}
+
+export interface SynapseDataProvider extends DataProvider {
+  deleteMedia: (params: DeleteMediaParams) => Promise<DeleteMediaResult>;
+}
+
 const resourceMap = {
   users: {
     path: "/_synapse/admin/v2/users",
@@ -329,16 +344,6 @@ const resourceMap = {
       endpoint: `/_synapse/admin/v1/media/${localStorage.getItem("home_server")}/${params.id}`,
     }),
   },
-  delete_media: {
-    delete: (params: DeleteParams) => ({
-      endpoint: `/_synapse/admin/v1/media/${localStorage.getItem(
-        "home_server"
-      )}/delete?before_ts=${params.meta.before_ts}&size_gt=${
-        params.meta.size_gt
-      }&keep_profiles=${params.meta.keep_profiles}`,
-      method: "POST",
-    }),
-  },
   protect_media: {
     map: (pm: UserMedia) => ({ id: pm.media_id }),
     create: (params: UserMedia) => ({
@@ -481,7 +486,7 @@ function getSearchOrder(order: "ASC" | "DESC") {
   }
 }
 
-const dataProvider: DataProvider = {
+const dataProvider: SynapseDataProvider = {
   getList: async (resource, params) => {
     console.log("getList " + resource);
     const { user_id, name, guests, deactivated, search_term, destination, valid } = params.filter;
@@ -700,6 +705,28 @@ const dataProvider: DataProvider = {
       return { data: responses.map(({ json }) => json) };
     }
   },
+
+  // Custom methods (https://marmelab.com/react-admin/DataProviders.html#adding-custom-methods)
+
+  /**
+   * Delete media by date or size
+   *
+   * @link https://matrix-org.github.io/synapse/latest/admin_api/media_admin_api.html#delete-local-media-by-date-or-size
+   *
+   * @param before_ts Unix timestamp in milliseconds. Files that were last used before this timestamp will be deleted. It is the timestamp of last access, not the timestamp when the file was created.
+   * @param size_gt   Size of the media in bytes. Files that are larger will be deleted.
+   * @param keep_profiles Switch to also delete files that are still used in image data (e.g user profile, room avatar). If false these files will be deleted.
+   * @returns
+   */
+  deleteMedia: async ({ before_ts, size_gt = 0, keep_profiles = true }) => {
+    const homeserver = localStorage.getItem("home_server"); // TODO only required for synapse < 1.78.0
+    const endpoint = `/_synapse/admin/v1/media/${homeserver}/delete?before_ts=${before_ts}&size_gt=${size_gt}&keep_profiles=${keep_profiles}`;
+
+    const base_url = localStorage.getItem("base_url");
+    const endpoint_url = base_url + endpoint;
+    const { json } = await jsonClient(endpoint_url, { method: "POST" });
+    return json as DeleteMediaResult;
+  },
 };
 
 export default dataProvider;