page-extractor

Page-exctractor is function to retrieve data from page-like API, page by page until all data is retrieved.

:innocent: Zero depends

:sparkles: Simple

🔥 Fast

Getting Started

Install Page-exctractor using npm

npm install page-exctractor

Import module:

const pageExctractor = require('page-exctractor');

or

import pageExctractor from 'page-exctractor';

Let`s getting started retrieve data from api (an example Steam API):

// totalData will contain data from all pages
const totalData = await pageExctractor(
  // fetchFn will request data page by page until it reaches total
  // For example, if the page size is 100 and the data is 1000, then 10 queries will be executed.
  async (offset) => {
    const response = await fetch(
      `https://steamcommunity.com/market/search/render/?query=&start=${offset}count=100&appid=753&norender=1`,
    );
    const { results, total_count } = await response.json();
    return {
      data: results,
      total: total_count,
    };
  },
);

Parameters

pageExctractor(fetchFn, [, options]);

Where

• fetchFn is callback function to retrieve data. It must return an object with the number of records (total) and data.
• options is an optional options object

Options

Possible option values

• pageSize single page size, defaults 100
• pageLimit limit of pages, defaults infinite
• totalLimit limit on the total amount of data for all pages, defaults infinite
• orderRequired whether the data order is mandatory, defaults false