diff --git a/db/README.md b/db/README.md
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+++ b/db/README.md
@@ -0,0 +1,3 @@
+# [memo-demo.hasura.app](https://memo-demo.hasura.app)
+
+https://cloud.hasura.io → "Git Deployment"
diff --git a/db/config.yaml b/db/config.yaml
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+++ b/db/config.yaml
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+version: 3
+endpoint: https://memo-demo.hasura.app
+metadata_directory: metadata
+actions:
+  kind: synchronous
+  handler_webhook_baseurl: http://localhost:3000
diff --git a/db/metadata/actions.graphql b/db/metadata/actions.graphql
new file mode 100644
index 0000000..e69de29
diff --git a/db/metadata/actions.yaml b/db/metadata/actions.yaml
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index 0000000..1edb4c2
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+++ b/db/metadata/actions.yaml
@@ -0,0 +1,6 @@
+actions: []
+custom_types:
+  enums: []
+  input_objects: []
+  objects: []
+  scalars: []
diff --git a/db/metadata/allow_list.yaml b/db/metadata/allow_list.yaml
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--- /dev/null
+++ b/db/metadata/allow_list.yaml
@@ -0,0 +1 @@
+- collection: allowed-queries
diff --git a/db/metadata/cron_triggers.yaml b/db/metadata/cron_triggers.yaml
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+++ b/db/metadata/cron_triggers.yaml
@@ -0,0 +1,16 @@
+- name: daily_reset
+  webhook: https://memo-demo.hasura.app/api/rest/delete_pages
+  schedule: 0 0 * * *
+  include_in_metadata: true
+  payload: {}
+  headers:
+    - value: "***"
+      name: x-hasura-admin-secret
+- name: daily_seed
+  webhook: https://memo-demo.hasura.app/api/rest/seed_page
+  schedule: 1 0 * * *
+  include_in_metadata: true
+  payload: {}
+  headers:
+    - value: "***"
+      name: x-hasura-admin-secret
diff --git a/db/metadata/databases/databases.yaml b/db/metadata/databases/databases.yaml
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index 0000000..60a7152
--- /dev/null
+++ b/db/metadata/databases/databases.yaml
@@ -0,0 +1,35 @@
+- name: default
+  kind: postgres
+  tables:
+    - table:
+        schema: public
+        name: pages
+      insert_permissions:
+        - role: anonymous
+          permission:
+            check: {}
+            columns:
+              - id
+              - content
+            backend_only: false
+      select_permissions:
+        - role: anonymous
+          permission:
+            columns:
+              - id
+              - content
+            filter: {}
+      update_permissions:
+        - role: anonymous
+          permission:
+            columns:
+              - id
+              - content
+            filter: {}
+            check: {}
+  configuration:
+    connection_info:
+      use_prepared_statements: false
+      database_url:
+        from_env: HEROKU_DATABASE_URL
+      isolation_level: read-committed
diff --git a/db/metadata/query_collections.yaml b/db/metadata/query_collections.yaml
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index 0000000..cffe0fd
--- /dev/null
+++ b/db/metadata/query_collections.yaml
@@ -0,0 +1,11 @@
+- name: allowed-queries
+  definition:
+    queries:
+      - name: get page
+        query: "query getPage($id: Int!) {\n  page: pages_by_pk(id: $id) {\n    id\n    content\n  }\n}"
+      - name: put page
+        query: "mutation putPage($id: Int, $content: jsonb!) {\n  page: insert_pages_one(object: {id: $id, content: $content}, on_conflict: {constraint: pages_pkey, update_columns: content}) {\n    id\n    content\n  }\n}"
+      - name: seed
+        query: "mutation seed($scheduled_time: String = \"\", $payload: jsonb = {}, $name: String = \"\", $id: String = \"\") {\n  insert_pages_one(object: {id: 1, content: {ops: [{insert: \"メモ帳\\n\", attributes: {header: 1}}, {insert: \"\\nこんにちは!\\nこれは「Hasuraで作るREST API」のデモ用Webアプリです。\\nここに入力した内容は自動的にHasuraに送信されデータベースに保存されます。\\n\\n\"}], scheduled_time: $scheduled_time, payload: $payload, name: $name, id: $id}}) {\n    id\n    content\n  }\n}"
+      - name: delete all
+        query: "mutation deleteAll($scheduled_time: String = \"\", $payload: jsonb = {}, $name: String = \"\", $id: String = \"\") {\n  delete_pages(where: {id: {_is_null: false}, _or: {content: {_neq: {scheduled_time: $scheduled_time, payload: $payload, name: $name, id: $id}}}}) {\n    affected_rows\n  }\n}"
diff --git a/db/metadata/remote_schemas.yaml b/db/metadata/remote_schemas.yaml
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--- /dev/null
+++ b/db/metadata/remote_schemas.yaml
@@ -0,0 +1 @@
+[]
diff --git a/db/metadata/rest_endpoints.yaml b/db/metadata/rest_endpoints.yaml
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+++ b/db/metadata/rest_endpoints.yaml
@@ -0,0 +1,37 @@
+- definition:
+    query:
+      collection_name: allowed-queries
+      query_name: delete all
+  url: delete_pages
+  methods:
+    - POST
+    - DELETE
+  name: delete all
+  comment: null
+- definition:
+    query:
+      collection_name: allowed-queries
+      query_name: get page
+  url: page/:id
+  methods:
+    - GET
+  name: get page
+  comment: null
+- definition:
+    query:
+      collection_name: allowed-queries
+      query_name: put page
+  url: page/:id
+  methods:
+    - PUT
+  name: put page
+  comment: null
+- definition:
+    query:
+      collection_name: allowed-queries
+      query_name: seed
+  url: seed_page
+  methods:
+    - POST
+  name: seed
+  comment: null
diff --git a/db/metadata/version.yaml b/db/metadata/version.yaml
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--- /dev/null
+++ b/db/metadata/version.yaml
@@ -0,0 +1 @@
+version: 3