Accessibility check

/** * Accessibility check: run the axe-core scan on a page in the session's browser and list the issues, worst first. * The shell fetches axe-core (inside the machine); Playwright runs it in the page. * *   npx tsx node/index.ts            (BOXLINE_API_KEY; PAGE_URL for your own page; a plan with shell sessions) * * Writes output/issues.json. */import { mkdirSync, writeFileSync } from "node:fs";import { join } from "node:path";import { Boxline } from "@boxline/sdk";import { chromium } from "playwright-core";const out = process.env.OUTPUT_DIR ?? "output";const url = process.env.PAGE_URL ?? "https://books.toscrape.com/";const AXE = "https://cdn.jsdelivr.net/npm/axe-core@4.10.2/axe.min.js";const bx = new Boxline();interface Violation {  id: string;  impact: "critical" | "serious" | "moderate" | "minor";  help: string;  helpUrl: string;  nodes: { target: string[] }[];}const session = await bx.sessions.create({ shell: true, timeout: 300, userMetadata: { example: "accessibility-check" } });console.log(`Session: ${session.id}`);const browser = await chromium.connectOverCDP(session.connectUrl!);try {  // 1. The shell downloads axe-core into the workspace; the files API hands its source to this script.  const dl = await session.exec(`curl -sSfL --max-time 60 -o axe.min.js ${AXE}`);  if (dl.exitCode !== 0) throw new Error(`could not download axe-core: ${dl.stderr.trim()}`);  const axeSource = await session.files.readText("axe.min.js");  // 2. The browser opens the page and runs the scan in it.  const page = browser.contexts()[0]!.pages()[0]!;  await page.goto(url, { waitUntil: "load" });  await page.evaluate(axeSource);  const violations = (await page.evaluate("axe.run().then((r) => r.violations)")) as Violation[];  const order = { critical: 0, serious: 1, moderate: 2, minor: 3 };  const issues = violations    .map((v) => ({ id: v.id, impact: v.impact, count: v.nodes.length, help: v.help, helpUrl: v.helpUrl, where: v.nodes.slice(0, 5).map((n) => n.target.join(" ")) }))    .sort((a, b) => order[a.impact] - order[b.impact]);  console.log(`${issues.length} kinds of issue on ${page.url()}:`);  for (const i of issues) console.log(`  ${i.impact.padEnd(8)} ${i.id} (${i.count}): ${i.help}`);  mkdirSync(out, { recursive: true });  writeFileSync(join(out, "issues.json"), JSON.stringify(issues, null, 2));  writeFileSync(join(out, "result.json"), JSON.stringify({ url, axe: AXE, issues }, null, 2));} finally {  await session.stop();  await browser.close().catch(() => undefined);}

"""Accessibility check: run the axe-core scan on a page in the session's browser and list the issues, worst first.The shell fetches axe-core (inside the machine); Playwright runs it in the page.    python python/main.py            (BOXLINE_API_KEY; PAGE_URL for your own page; a plan with shell sessions)Writes output/issues.json."""import jsonimport osfrom pathlib import Pathfrom playwright.sync_api import sync_playwrightfrom boxline import Boxlineout = Path(os.environ.get("OUTPUT_DIR", "output"))url = os.environ.get("PAGE_URL", "https://books.toscrape.com/")AXE = "https://cdn.jsdelivr.net/npm/axe-core@4.10.2/axe.min.js"ORDER = {"critical": 0, "serious": 1, "moderate": 2, "minor": 3}bx = Boxline()with bx.sessions.create(shell=True, timeout=300, user_metadata={"example": "accessibility-check"}) as session, sync_playwright() as p:    print(f"Session: {session.id}", flush=True)    # 1. The shell downloads axe-core into the workspace; the files API hands its source to this script.    dl = session.exec(f"curl -sSfL --max-time 60 -o axe.min.js {AXE}")    if dl["exitCode"] != 0:        raise SystemExit(f"could not download axe-core: {dl['stderr'].strip()}")    axe_source = session.files.read_text("axe.min.js")    # 2. The browser opens the page and runs the scan in it.    page = p.chromium.connect_over_cdp(session.connect_url).contexts[0].pages[0]    page.goto(url, wait_until="load")    page.evaluate(axe_source)    violations = page.evaluate("axe.run().then((r) => r.violations)")    issues = sorted(        (            {"id": v["id"], "impact": v["impact"], "count": len(v["nodes"]), "help": v["help"], "helpUrl": v["helpUrl"],             "where": [" ".join(n["target"]) for n in v["nodes"][:5]]}            for v in violations        ),        key=lambda i: ORDER.get(i["impact"], 9),    )    print(f"{len(issues)} kinds of issue on {page.url}:")    for i in issues:        print(f"  {i['impact']:<8} {i['id']} ({i['count']}): {i['help']}")    out.mkdir(parents=True, exist_ok=True)    (out / "issues.json").write_text(json.dumps(issues, indent=2))    (out / "result.json").write_text(json.dumps({"url": url, "axe": AXE, "issues": issues}, indent=2))

# Node 18 or newer, in the example's folderexport BOXLINE_API_KEY=…   # your API keynpm install @boxline/sdk playwright-core tsxnpx tsx node/index.ts

# Python 3.9 or newer, in the example's folderexport BOXLINE_API_KEY=…   # your API keypip install boxline-sdk playwrightpython python/main.py