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browser-cli/examples/demo.py
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daniel156161 fd5447cbb9
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refactor(api): namespaced SDK + dedicated transport layer
Restructure the Python API and internals around composable namespaces and
a standalone transport/endpoint layer. Bump to 0.12.0.

Python API:
- Replace flat methods (b.tabs_list(), b.group_list()) with namespaces:
  b.nav, b.tabs, b.groups, b.windows, b.dom, b.extract, b.page, b.storage,
  b.cookies, b.session, b.perf, b.extension.
- Shrink browser_cli/__init__.py to a thin composition root; move all
  behaviour into browser_cli/sdk/ (one module per namespace + factories,
  base, routing).

Internals:
- Add browser_cli/transport.py and remote_transport.py to isolate IPC from
  command logic; client.py now delegates instead of owning transport.
- Add browser_cli/endpoints.py for endpoint resolution and
  browser_cli/errors.py for shared error types.
- Extract markdown rendering into browser_cli/markdown.py (out of extract).
- Add USER_AGENT to version_manager.

Tooling & tests:
- Add justfile with common dev tasks.
- Update CLI commands and demo to the namespaced API.
- Rework tests for the new layout; add test_transport.py and
  test_refactor_boundaries.py to lock in module boundaries.

BREAKING CHANGE: flat API methods are removed in favour of namespaces
(e.g. b.tabs_list() -> b.tabs.list(), b.group_list() -> b.groups.list()).
2026-06-11 13:58:41 +02:00

110 lines
3.9 KiB
Python

"""
browser-cli Python SDK demo
----------------------------
Shows how to manage your running browser from a Python script.
Commands are grouped into namespaces on the client: b.tabs, b.nav, b.groups,
b.dom, b.extract, b.session, ...
Run with:
uv run python examples/demo.py
"""
from browser_cli import BrowserCLI
b = BrowserCLI()
# ── 1. See what's open ────────────────────────────────────────────────────────
print("=== Open tabs ===")
tabs = b.tabs.list()
for tab in tabs:
active = " <-- active" if tab.active else ""
print(f" [{tab.id}] (window {tab.window_id}) {tab.title[:50]}{active}")
# ── 2. Count tabs per domain ──────────────────────────────────────────────────
print("\n=== Tabs per domain ===")
from urllib.parse import urlparse
from collections import Counter
domains = Counter(
urlparse(t.url).netloc
for t in tabs
if t.url and not t.url.startswith("chrome")
)
for domain, count in domains.most_common(5):
print(f" {count:>3}x {domain}")
# ── 3. Open a group and add tabs to it ───────────────────────────────────────
print("\n=== Creating 'demo' tab group ===")
group = b.groups.create("demo")
group_id = group.id
print(f" Created group id: {group_id}")
urls = [
"https://example.com",
"https://wikipedia.org",
]
first_tab_id = None
for url in urls:
b.nav.open(url, background=True)
# find the tab we just opened and move it into the group
fresh = b.tabs.list()
new_tab = next((t for t in reversed(fresh) if t.url.startswith(url[:20])), None)
if new_tab:
b.tabs.move(new_tab.id, group_id=group_id)
print(f" Added {url} → tab {new_tab.id}")
if first_tab_id is None:
first_tab_id = new_tab.id
# Activate the first opened tab so DOM/extract have a real page to work with
if first_tab_id:
b.tabs.activate(first_tab_id)
print(f" Switched to tab {first_tab_id} for DOM demo")
# ── 4. Extract links from the active tab ─────────────────────────────────────
# Re-fetch tabs so we have the current active tab (it may have changed)
current_tabs = b.tabs.list()
active_tab = next((t for t in current_tabs if t.active), None)
active_url = active_tab.url if active_tab else ""
scriptable = active_url.startswith("http://") or active_url.startswith("https://")
print("\n=== Links on active tab ===")
if not scriptable:
print(f" Skipped — active tab is {active_url!r} (not a web page)")
else:
links = b.extract.links()
for link in links[:5]:
print(f" {link['text'][:30]:<32} {link['href'][:60]}")
if len(links) > 5:
print(f" ... and {len(links) - 5} more")
# ── 5. Check if an element exists, then read its text ────────────────────────
print("\n=== DOM: page heading ===")
if not scriptable:
print(f" Skipped — active tab is {active_url!r} (not a web page)")
elif b.dom.exists("h1"):
headings = b.dom.text("h1")
for h in headings:
print(f" <h1> {h}")
else:
print(" No <h1> found on active tab")
# ── 6. Save current session and show how to restore ──────────────────────────
print("\n=== Saving session as 'demo-session' ===")
b.session.save("demo-session")
print(" Saved current session")
print(" Restore later with: b.session.load('demo-session')")
# ── 7. Clean up: close duplicate tabs ────────────────────────────────────────
print("\n=== Closing duplicate tabs ===")
closed = b.tabs.close_duplicates()
print(f" Closed {closed} duplicate tab(s)")
print("\nDone!")