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interface PageContent {
content: string;
url: string;
title: string;
id: string;
createdAt: string;
}
interface NotionBlock {
type: string;
[key: string]: any;
}
interface SearchResponse {
results: {
id: string;
object: string;
url: string;
created_time: string;
properties: {
title?: {
title: Array<{
plain_text: string;
}>;
};
Name?: {
title: Array<{
plain_text: string;
}>;
};
};
}[];
next_cursor: string | undefined;
has_more: boolean;
}
interface BlockResponse {
results: NotionBlock[];
next_cursor: string | undefined;
has_more: boolean;
}
export const getAllNotionPageContents = async (
token: string,
onProgress: (progress: number) => Promise<void>
): Promise<PageContent[]> => {
const pages: PageContent[] = [];
const NOTION_API_VERSION = "2022-06-28";
const BASE_URL = "https://api.notion.com/v1";
const MAX_RETRIES = 3;
const BATCH_SIZE = 10; // Number of concurrent requests
const PAGE_SIZE = 100; // Number of pages to fetch per search request
const delay = (ms: number) =>
new Promise((resolve) => setTimeout(resolve, ms));
const notionFetch = async (
endpoint: string,
options: RequestInit = {},
retries = 0
): Promise<any> => {
try {
const response = await fetch(`${BASE_URL}${endpoint}`, {
...options,
headers: {
Authorization: `Bearer ${token}`,
"Notion-Version": NOTION_API_VERSION,
"Content-Type": "application/json",
...((options.headers || {}) as Record<string, string>),
},
});
if (response.status === 429) {
// Rate limit error
const retryAfter = parseInt(response.headers.get("Retry-After") || "5");
if (retries < MAX_RETRIES) {
await delay(retryAfter * 1000);
return notionFetch(endpoint, options, retries + 1);
}
}
if (!response.ok) {
const errorText = await response.text();
throw new Error(
`Notion API error: ${response.statusText}\n${errorText}`
);
}
return response.json();
} catch (error) {
if (retries < MAX_RETRIES) {
await delay(2000 * (retries + 1)); // Exponential backoff
return notionFetch(endpoint, options, retries + 1);
}
throw error;
}
};
const convertBlockToMarkdown = (block: NotionBlock): string => {
switch (block.type) {
case "paragraph":
return (
block.paragraph?.rich_text
?.map((text: any) => text.plain_text)
.join("") || ""
);
case "heading_1":
return `# ${block.heading_1?.rich_text
?.map((text: any) => text.plain_text)
.join("")}\n`;
case "heading_2":
return `## ${block.heading_2?.rich_text
?.map((text: any) => text.plain_text)
.join("")}\n`;
case "heading_3":
return `### ${block.heading_3?.rich_text
?.map((text: any) => text.plain_text)
.join("")}\n`;
case "bulleted_list_item":
return `* ${block.bulleted_list_item?.rich_text
?.map((text: any) => text.plain_text)
.join("")}\n`;
case "numbered_list_item":
return `1. ${block.numbered_list_item?.rich_text
?.map((text: any) => text.plain_text)
.join("")}\n`;
case "to_do":
const checked = block.to_do?.checked ? "x" : " ";
return `- [${checked}] ${block.to_do?.rich_text
?.map((text: any) => text.plain_text)
.join("")}\n`;
case "code":
return `\`\`\`${block.code?.language || ""}\n${block.code?.rich_text
?.map((text: any) => text.plain_text)
.join("")}\n\`\`\`\n`;
case "quote":
return `> ${block.quote?.rich_text
?.map((text: any) => text.plain_text)
.join("")}\n`;
default:
return "";
}
};
const getAllBlocks = async (pageId: string): Promise<NotionBlock[]> => {
const blocks: NotionBlock[] = [];
let cursor: string | undefined = undefined;
do {
const endpoint = `/blocks/${pageId}/children${
cursor ? `?start_cursor=${cursor}` : ""
}`;
const response = (await notionFetch(endpoint)) as BlockResponse;
blocks.push(...response.results);
cursor = response.next_cursor;
} while (cursor);
return blocks;
};
try {
let hasMore = true;
let cursor: string | undefined = undefined;
let allPages: SearchResponse["results"] = [];
// First, collect all pages
while (hasMore) {
const searchResponse = (await notionFetch("/search", {
method: "POST",
body: JSON.stringify({
filter: {
value: "page",
property: "object",
},
sort: {
direction: "ascending",
timestamp: "last_edited_time",
},
start_cursor: cursor,
page_size: PAGE_SIZE,
}),
})) as SearchResponse;
allPages = [...allPages, ...searchResponse.results];
cursor = searchResponse.next_cursor;
hasMore = searchResponse.has_more;
// Report progress for page collection (0-30%)
const progressPercent = (allPages.length / (allPages.length + searchResponse.results.length)) * 30;
await onProgress(progressPercent);
}
// Process pages in parallel batches
for (let i = 0; i < allPages.length; i += BATCH_SIZE) {
const batch = allPages.slice(i, i + BATCH_SIZE);
const batchResults = await Promise.all(
batch.map(async (page) => {
try {
const blocks = await getAllBlocks(page.id);
const pageContent = {
content: blocks.map(convertBlockToMarkdown).join("\n"),
url: page.url || `https://notion.so/${page.id.replace(/-/g, "")}`,
title:
page.properties?.Name?.title?.[0]?.plain_text ||
page.properties?.title?.title?.[0]?.plain_text ||
"Untitled",
id: page.id,
createdAt: page.created_time,
};
return pageContent.content.length > 10 ? pageContent : null;
} catch (error) {
console.error(`Error processing page ${page.id}:`, error);
return null;
}
})
);
pages.push(
...batchResults.filter(
(result): result is PageContent => result !== null
)
);
// Report progress for page processing (30-100%)
const progressPercent = 30 + ((i + BATCH_SIZE) / allPages.length) * 70;
await onProgress(Math.min(progressPercent, 100));
// Add a small delay between batches to respect rate limits
if (i + BATCH_SIZE < allPages.length) {
await delay(1000);
}
}
return pages.filter((page) => page.content.length > 10);
} catch (error) {
console.error("Error fetching Notion pages:", error);
throw error;
}
};
|