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notion.js
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notion.js
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import defaults from 'default-args';
import { Client } from '@notionhq/client';
import { NotionToMarkdown } from 'notion-2-markdown/build/notion-to-md.js';
import { convertPropsCase } from '../utils/transformVariables.js';
export class NotionModule {
constructor({ secret, database }, options) {
this.options = defaults({
filterProp: 'Status',
filterValues: 'Ready,Published',
caseType: 'snake',
}, options);
this.options.filterValues = Array.isArray(this.options.filterValues) ? this.options.filterValues : this.options.filterValues.split(',').map(value => value.trim());
const databaseId = getDatabaseId(database);
this.database_id = databaseId;
this.notion = new Client({ auth: secret });
this.notion2md = new NotionToMarkdown({ notionClient: this.notion });
}
async fetchArticles() {
const pages = await this._fetchPagesFromDb(this.database_id);
return pages;
}
async getArticle(page) {
let article = {
id: page.id,
title: getTitle(page),
...toPlainPage(page),
...toPlainProperties(page.properties),
content: await this._getPageMarkdown(page.id),
};
if (this.options.caseType) {
article = convertPropsCase(article, this.options.caseType);
}
return article;
}
async _fetchPagesFromDb(database_id) {
const response = await this.notion.databases.query({
database_id: database_id,
filter: {
or: [
...this.options.filterValues.map(value => ({
property: this.options.filterProp, select: { equals: value }
})),
]
}
});
// TODO: paginate more than 100 pages
return response.results;
}
async _getPageMarkdown(page_id) {
const mdBlocks = await this.notion2md.pageToMarkdown(page_id);
return this.notion2md.toMarkdownString(mdBlocks);
}
async updateBlogStatus(page_id) {
this.notion.pages.update({
page_id: page_id,
properties: {
status: {
select: {
name: 'Published'
}
}
}
});
}
}
function toPlainPage(page) {
return {
created_time: new Date(page.created_time),
last_edited_time: new Date(page.last_edited_time),
cover_image: page.cover?.external?.url || page.cover?.file.url,
icon_image: page.icon?.file?.url,
icon_emoji: page.icon?.emoji,
};
}
function getTitle(page) {
const titleProp = Object.values(page.properties).find(prop => prop.id === 'title');
return titleProp.title[0]?.plain_text;
}
function toPlainProperties(properties) {
const types = {
title(prop) {
return prop.title[0]?.plain_text;
},
rich_text(prop) {
return prop.rich_text[0]?.plain_text;
},
number(prop) {
return prop.number;
},
select(prop) {
return prop.select?.name;
},
multi_select(prop) {
return prop.multi_select.map(s => s.name);
},
date(prop) {
return prop.date?.start ? new Date(prop.date?.start) : null;
},
files(prop) {
const urls = prop.files?.map(file => file.file?.url || file.external?.url);
return urls.length <= 1 ? urls[0] : urls;
},
checkbox(prop) {
return prop.checkbox;
},
url(prop) {
return prop.url;
},
email(prop) {
return prop.email;
},
phone_number(prop) {
return prop.phone_number;
},
created_time(prop) {
return new Date(prop.created_time);
},
last_edited_time(prop) {
return new Date(prop.last_edited_time);
},
};
const obj = {};
for (const [key, value] of Object.entries(properties)) {
if (types[value.type]) {
obj[key] = types[value.type](value);
}
else {
console.warn(`Unknown block type: ${value.type}`);
obj[key] = value[value.type];
}
}
return obj;
}
function getDatabaseId(string) {
const isValidId = str => /^[0-9a-f]{32}$/.test(str);
if (isValidId(string)) return string;
try {
const parsedUrl = new URL(string);
const id = parsedUrl.pathname.match(/\b([0-9a-f]{32})\b/)[1];
if (isValidId(id)) return id;
else throw new Error('URL does not contain a valid database id');
}
catch (error) {
throw new Error('Database is not valid databaseID or Notion URL! ' + error);
}
}