OpenStax Scraper
Spider read openstax.org in 3.2 s without a browser and returned 3,670 lines of clean markdown, including sections like "Colons", "End Punctuation" and "Dashes and Parentheses".
* Use a semicolon to join main clauses that are connected by a transitional word or phrase such as *for example, however, therefore, indeed,* or *after all*:> The governor has proposed increased funding to K-12 public schools> the legislature must approve the budget.* Use a semicolon between items in a series that contain internal commas:> The candidates for the award are Michael, who won the essay competition> Sasha, the top debater; and Giselle, who directed several student productions.#### ColonsA colon introduces lists, summaries, and quotations. A colon also separates titles from subtitles.> Successful athletes have the following qualities> physical ability, mental toughness, commitment, and optimism* A colon can also introduce a summary or an explanation, which may or may not be a main clause (a clause that contains a subject and a predicate and can stand alone as a sentence):> The team had one goal left before the end of the season> to win the state championship* Book titles often include a subtitle. A colon separates the subtitle from the title:> Inside the Fight for Marriage Equality#### End PunctuationA sentence ends with a period, a question mark, or an exclamation point.* A period ends declarative (statement) and imperative (command) sentences:> The administration canceled classes> Do not attempt to drive to school this morning* A question mark ends a direct question and indicates uncertainty in dates:* An exclamation point ends an emphatic or emotional sentence:#### Dashes and ParenthesesDashes and parentheses enclose nonessential information in a sentence.* Use a dash or dashes to set off nonessential information, to indicate a contrast or a pause, or to mark a change of direction.> We did not notice the rain at first> Nothing is as exciting as seeing a snowy owl in a winter farm field> except maybe seeing two snowy owls.The same call, in code.
The capture above came back as markdown. These examples add a key, so you get browser rendering, proxies, and concurrency on openstax.org.
import { SpiderBrowser } from "spider-browser";
const spider = new SpiderBrowser({
apiKey: process.env.SPIDER_API_KEY!,
});
await spider.connect();
const page = spider.page!;
await page.goto("https://openstax.org/subjects");
// No selectors, no schema. Spider reads the page and names the fields.
const data = await page.scrape();
console.log(data);
await spider.close();import { SpiderBrowser } from "spider-browser";
const spider = new SpiderBrowser({
apiKey: process.env.SPIDER_API_KEY!,
});
await spider.connect();
const page = spider.page!;
await page.goto("https://openstax.org/subjects");
const data = await page.extractFields({
title: ".book-card h3",
subject: ".book-card .subject-label",
description: ".book-card .book-description",
authors: ".book-card .authors",
adoptions: ".book-card .adoption-count",
link: ".book-card a",
});
console.log(data);
await spider.close();Ready for volume? Get an API key →
Fields you can pull.
Spider names these from the page. The capture above came back as markdown; the same
call with return_format: "json" returns them as keys.
What openstax.org costs to scrape.
The capture above cost $0.001036 to fetch. Pricing is $1 per GB of pre-transformation bandwidth plus $0.001 per CPU minute, so a page like this one lands at a fraction of a cent. Failed requests are billed at $0.
- Free balance on signup
- No card required to test
- Balance never expires
Run it keyless, no account
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Start scraping openstax.org.
You already have the call. A key raises the rate limit and turns on browser rendering, proxies, and concurrency. Balance never expires, and top-ups go through secure checkout.