MediaWiki SDK

MediaWiki SDK is a Node.js SDK, written in TypeScript, for interacting with the MediaWiki API. It provides methods to interface with MediaWiki-based platforms (such as Wikipedia, Wikidata, Fandom) and supports both JavaScript and TypeScript projects.

Features

• Detailed Page Information: Fetch comprehensive data for pages, including content (extracts), categories, revisions, links, and associated metadata.
• User Authentication: Supports logging into MediaWiki sites, including handling for bot passwords.
• Flexible Querying: Execute action=query requests using prop, list, and meta parameters for specific data retrieval needs.
• Search Functionality: Offers methods for full-text search (list=search) and OpenSearch (autocomplete-style) queries.
• Wikitext Parsing: Convert wikitext to HTML or retrieve structured data from page content via the action=parse API.
• Site Metadata Retrieval: Access general information and configuration of a MediaWiki site.
• Strongly Typed with TypeScript: Full static typing provides a robust development experience with autocompletion and compile-time error checking. Response objects are strictly typed.
• Promise-based Asynchronous API: Designed with async/await in mind for clean and modern asynchronous code.

Installation

Ensure you have Node.js version 16 or higher installed.

Install using npm:

npm install mediawiki-sdk

Or using yarn:

yarn add mediawiki-sdk

Quick Start

JavaScript (CommonJS):

const { MediaWiki } = require("mediawiki-sdk");

const mw = new MediaWiki({
  baseURL: "https://en.wikipedia.org/w/api.php" // Or your target MediaWiki API
});

(async () => {
  try {
    // Get rich data for pages
    const pageData = await mw.client.page(["JavaScript", "Python (programming language)"]);
    for (const id in pageData.query.pages) {
      const p = pageData.query.pages[id];
      if (!p.missing) {
        console.log(`Page: ${p.title} (ID: ${p.pageid}), Length: ${p.length}`);
      }
    }

    // Perform a full-text search
    const searchResults = await mw.client.search("Artificial Intelligence", null, 3); // Search term, default namespaces, limit 3
    searchResults.query.search.forEach(r => {
      console.log(`Search hit: ${r.title} (Snippet: ${r.snippet.replace(/<[^>]+>/g, '').substring(0,50)}...)`);
    });

    // Get random pages using a custom query
    const randomPages = await mw.client.query({
      list: ["random"],
      rnnamespace: "0", // Main namespace
      rnlimit: 2
    });
    randomPages.query.random.forEach(p => {
      console.log(`Random page: ${p.title} (ID: ${p.id})`);
    });

    // Get site metadata
    const siteInfo = await mw.client.siteInfo();
    console.log(`Wiki Name: ${siteInfo.query.general.sitename}, Main Page: ${siteInfo.query.general.mainpage}`);

    // OpenSearch for suggestions
    const suggestions = await mw.client.opensearch({ search: "typescript", limit: 5, namespace: [0] });
    console.log(`Suggestions for "${suggestions.query}":`, suggestions.results); // results is suggestions[1] in raw opensearch

    // Parse rendered HTML of a page
    const parsedPage = await mw.client.parse({ page: "Node.js" });
    console.log(`Parsed Title: ${parsedPage.title()}`);
    // console.log("HTML (first 100 chars):", parsedPage.text().substring(0, 100) + "...");

    // Parse raw wikitext
    const parsedFromText = await mw.client.parse({ text: "''Hello'' from '''SDK'''!", title: "Sandbox" }); // title provides context
    console.log("Rendered HTML from text:", parsedFromText.text());

    // Get a page summary (extract)
    const summary = await mw.client.summary({ title: "JavaScript" });
    console.log(`Summary for JavaScript (first 100 chars): ${summary.text().substring(0, 100)}...`);

    // Get current user info (anonymous by default)
    const userInfoAnon = await mw.client.userInfo();
    console.log(`Current user (anon): ${userInfoAnon.getUserName()}, ID: ${userInfoAnon.getUserId()}, IsAnonymous: ${userInfoAnon.isAnonymous()}`);

    // Example: Login and get authenticated user info
    // Replace with your bot credentials or handle errors if not provided
    /*
    try {
      await mw.login("YourBotUsername@YourBotName", "your_bot_password_here");
      console.log("Login successful!");
      const userInfoAuth = await mw.client.userInfo();
      console.log(`Logged in as: ${userInfoAuth.getUserName()}, ID: ${userInfoAuth.getUserId()}`);
    } catch (loginError) {
      console.warn("Login failed or skipped (ensure credentials are set for login example):", loginError.message);
    }
    */

  const editResponse = await mw.client.editPage({
    title: "Sandbox",
    text: "New content for Sandbox page",
    summary: "Updated by bot",
    bot: false
  });

  console.log("Edit result:", editResponse.getResult());
  } catch (error) {
    console.error("An error occurred:", error.message);
  }
})();

API Reference

new MediaWiki(options: MediaWikiOptions)

Creates a new instance of the MediaWiki client.

Parameters (MediaWikiOptions):

• baseURL (string, required): The base URL of the MediaWiki API (e.g., https://en.wikipedia.org/w/api.php or https://my.wiki.org/w). The SDK will append /api.php if not present.
• servedby? (boolean, optional): If true, includes servedby=true in requests to get server information in the response.
• curtimestamp? (boolean, optional): If true, includes curtimestamp=true to get the current timestamp in the response.
• responselanginfo? (boolean, optional): If true, includes responselanginfo=true to get response language information.
• requestid? (string, optional): A custom request ID to be included in API requests for tracking.
• formatversion? (1 | 2, optional): API format version. Defaults to 2. The SDK is optimized for formatversion=2.
• ascii? (boolean, optional): If true, includes ascii=true to replace non-ASCII characters with escape sequences.
• utf8? (boolean, optional): If true, includes utf8=true to ensure UTF-8 encoding.

Note: The format parameter is internally managed and set to json.

mw.login(username: string, password: string): Promise<MediaWikiUser>

Logs in to the MediaWiki site using the provided credentials. It's recommended to use BotPasswords.

Parameters:

• username (string, required): The MediaWiki username (e.g., MyBot@MyBotName for bot passwords).
• password (string, required): The password or bot password.

Returns: Promise<MediaWikiUser> - An object containing userId and userName of the logged-in user.

Client Methods (mw.client)

The mw.client object provides methods for making various API requests.

mw.client.query(options: MediaWikiPageOptions): Promise<MediaWikiQueryResponse>

Executes a generic action=query request. This is the core method for fetching data and allows for complex combinations of prop, list, and meta parameters.

Parameters (MediaWikiPageOptions): An object specifying the query parameters. Key properties include:

• prop?: MediaWikiPageOptionsProp[]: Properties to retrieve for pages (e.g., ["extracts", "categories"]).
• list?: MediaWikiPageOptionsList[]: Lists to retrieve (e.g., ["search", "random"]).
• meta?: MediaWikiPageOptionsMeta[]: Meta information to retrieve (e.g., ["siteinfo", "userinfo"]).
• titles?: string[]: Page titles to query. The SDK joins array elements with |.
• pageids?: string[]: Page IDs to query. The SDK joins array elements with |.
• uiprop?: string: Properties to retrieve for meta=userinfo (e.g., "*" for all).
• Other parameters specific to MediaWiki API modules (e.g., srsearch, rnlimit, exintro) are passed directly as keys in the options object.

Returns: Promise<MediaWikiQueryResponse> - A general, strictly-typed response object for query actions. The structure of response.query will vary based on the request.

mw.client.page(titles: string[]): Promise<MediaWikiQueryPageResponse>

A convenience method to retrieve detailed information for one or more pages. Wraps client.query with default prop: ["info", "extracts", "categories", "revisions"] and indexpageids: true.

Parameters:

• titles (string[], required): An array of page titles.

Returns: Promise<MediaWikiQueryPageResponse> - Typed response containing query.pages with page details.

mw.client.search(srsearch: string, srnamespace?: string[] | null, srlimit?: number | null): Promise<MediaWikiQuerySearchResponse>

Performs a full-text search using list=search.

Parameters:

• srsearch (string, required): The search term.
• srnamespace? (string[], optional): Array of namespace IDs (as strings or numbers) to search within. Defaults to all if null or empty.
• srlimit? (number, optional): Maximum number of results. Defaults to 10.

Returns: Promise<MediaWikiQuerySearchResponse> - Typed response with query.searchinfo and query.search results.

mw.client.opensearch(options: MediaWikiQueryOpenSearchOptions): Promise<MediaWikiQueryOpenSearchResponse>

Performs an OpenSearch (autocomplete-style) query using action=opensearch.

Parameters (MediaWikiQueryOpenSearchOptions):

• search (string, required): The search term.
• namespace? (number[], optional): Array of namespace IDs to search in.
• limit? (number, optional): Maximum number of suggestions.

Returns: Promise<MediaWikiQueryOpenSearchResponse> - Typed OpenSearch response array: [query, results, descriptions, urls].

mw.client.parse(options: MediaWikiQueryParseOptions): Promise<MediaWikiQueryParseResponseClass>

Parses wikitext or page content into HTML and other structured data using action=parse.

Parameters (MediaWikiQueryParseOptions):

• One of the following is required:
  • text?: string: Raw wikitext to parse. Use title to provide context if needed.
  • page?: string: Title of an existing page to parse.
  • pageid?: number: ID of an existing page to parse.
• title? (string, optional): Title for context when parsing text.
• redirects? (boolean, optional): Whether to resolve redirects for page or pageid.
• Other action=parse parameters like prop, wrapoutputclass, etc.

Returns: Promise<MediaWikiQueryParseResponseClass> - An instance of MediaWikiQueryParseResponseClass wrapping the parsed data, with helper methods like .text(), .title().

mw.client.summary(options: MediaWikiQuerySummaryOptions): Promise<MediaWikiQuerySummaryResponseClass>

Retrieves a plain text summary (extract) for a page. Wraps client.query with prop: ["extracts"], exintro: true, and explaintext: true.

Parameters (MediaWikiQuerySummaryOptions):

• title (string, required): The title of the page.

Returns: Promise<MediaWikiQuerySummaryResponseClass> - An instance of MediaWikiQuerySummaryResponseClass with a .text() method for the extract.

mw.client.categories(options: MediaWikiQueryCategoriesOptions): Promise<MediaWikiQueryCategoriesResponse>

Retrieves categories for a specified page. Wraps client.query with prop: ["categories"].

Parameters (MediaWikiQueryCategoriesOptions):

• title (string, required): The title of the page.

Returns: Promise<MediaWikiQueryCategoriesResponse> - Typed response containing page categories.

mw.client.revisions(options: MediaWikiQueryRevisionsOptions): Promise<MediaWikiQueryRevisionsResponse>

Retrieves revision history for a specified page. Wraps client.query with prop: ["revisions"].

Parameters (MediaWikiQueryRevisionsOptions):

• title (string, required): The title of the page.
• rvlimit? (number, optional): The maximum number of revisions to return.

Returns: Promise<MediaWikiQueryRevisionsResponse> - Typed response containing page revisions.

mw.client.siteInfo(): Promise<MediaWikiQuerySiteInfoResponse>

Retrieves general site information and configuration using meta=siteinfo.

Returns: Promise<MediaWikiQuerySiteInfoResponse> - Typed response containing site metadata under query.general.

mw.client.userInfo(): Promise<MediaWikiQueryUserInfoResponseClass>

Retrieves information about the current user (either authenticated or anonymous). Uses meta=userinfo and requests all properties via uiprop: "*".

Returns: Promise<MediaWikiQueryUserInfoResponseClass> - An instance of MediaWikiQueryUserInfoResponseClass with helper methods like .getUserName(), .getUserId(), .isAnonymous(), .getUserOptions().

Type Safety

This SDK is written in TypeScript and exports comprehensive type definitions. This allows for:

• Autocompletion in modern IDEs.
• Compile-time checks for correct parameter usage and response handling.
• Clearer understanding of the data structures returned by the API.

Response objects are often wrapped in classes (e.g., MediaWikiQueryUserInfoResponseClass, MediaWikiQueryParseResponseClass) that provide convenient accessor methods in addition to the raw API data.

For detailed information on MediaWiki API parameters and modules, refer to the official MediaWiki API documentation.