feat: add constants

Author: EndBug

src/constants.ts

@@ -0,0 +1,21 @@
+/**
+ * The limits that the Notion API uses for property values.
+ * @see https://developers.notion.com/reference/request-limits#limits-for-property-values
+ */
+export const LIMITS = {
+  /** @see https://developers.notion.com/reference/request-limits#size-limits */
+  PAYLOAD_BLOCKS: 1000,
+
+  RICH_TEXT_ARRAYS: 100,
+  RICH_TEXT: {
+    TEXT_CONTENT: 2000,
+    LINK_URL: 1000,
+    EQUATION_EXPRESSION: 1000,
+  },
+  URL: 1000,
+  EMAIL: 200,
+  PHONE: 200,
+  MULTI_SELECT: 100,
+  RELATION: 100,
+  PEOPLE: 100,
+};

src/index.ts

@@ -1,3 +1,4 @@
 export * as Blocks from './builders';
+export * as Constants from './constants';
 export * as Types from './types';
 export * as Utils from './utils';