emailnator-wrapper 1.1.2

A Python wrapper for the Emailnator service providing both synchronous and asynchronous APIs.

emailnator-wrapper

Asynchronous and synchronous API wrapper for EmailNator. Provides a small, well-typed SDK to generate temporary Gmail-style addresses and read incoming messages. Designed for both script usage and integration into larger automation/test suites.

---

Features

• Fully asynchronous core using httpx.AsyncClient.
• Optional synchronous wrapper for blocking workflows.
• Automatic XSRF token management (fetch, decode, refresh) via XsrfManager.
• Async-aware initialization helpers (metaclasses / factories) so classes can expose __ainit__.
• Async-safe singletons (AsyncSingletonMeta) where appropriate (HTTP client).
• Configurable via YAML (config.yaml) with optional proxy support.
• Clear, Google-style docstrings and type annotations.

---

Requirements

• Python 3.11+ (works on 3.13).

• Dependencies (typical):

  • httpx
  • PyYAML
  • pytest / pytest-asyncio for tests

---

Installation

pip install email-wrapper

---

Configuration

emailnator/config/config.yaml (example):

BASE_URL: https://www.emailnator.com
TIMEOUT: 15
USE_HTTP2: true
USER_AGENT: "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0"
GMAIL_CONFIG:
  - dotGmail
  - plusGmail
PROXY: null

Notes

• PROXY: null sets config.PROXY to None. Do not use the literal string "None" — httpx will reject that as an invalid proxy URL.
• Keep credentials / secrets out of the YAML in public repos.

---

Quickstart — Asynchronous (recommended)

Save the example below as examples/async_example.py.

# Copyright (C) 2025 unelected
#
# This file is part of account_generator.
#
# account_generator is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# account_generator is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with account_generator. If not, see
# <https://www.gnu.org/licenses/>.

"""
Example usage of the asynchronous AsyncEmailGenerator.

This script demonstrates:
  1. Creating the asynchronous AsyncEmailGenerator (awaitable constructor).
  2. Generating a single temporary email address.
  3. Retrieving messages for that address.
  4. Printing results.
"""
import asyncio

from emailnator.asyncio.email_generator import AsyncEmailGenerator


async def generate_email_and_get_messages() -> None:
    """
    Initialize the async generator, produce an email and fetch messages.
    """
    generator = await AsyncEmailGenerator()
    email = await generator.generate_email()
    messages = await generator.get_messages(email)
    print(f"Email: {email}\nMessages: {messages}")


if __name__ == "__main__":
    asyncio.run(generate_email_and_get_messages())

---

Quickstart — Synchronous wrapper

Save as examples/sync_example.py.

# Copyright (C) 2025 unelected
#
# This file is part of account_generator.
#
# account_generator is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# account_generator is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with account_generator. If not, see
# <https://www.gnu.org/licenses/>.

"""
Synchronous example using EmailGenerator wrapper.

This demonstrates creating the blocking wrapper and using it to generate
an email and retrieve messages in a non-async program.
"""
from emailnator.sync.email_generator import EmailGenerator

def main() -> None:
    gen = EmailGenerator()
    email = gen.generate_email()
    messages = gen.get_messages(email)
    print(f"Email: {email}\nMessages: {messages}")

if __name__ == "__main__":
    main()

---

Public API overview

• emailnator.asyncio.email_generator.AsyncEmailGenerator High-level async facade. Use await AsyncEmailGenerator().

• emailnator.asyncio.generators.Generators Endpoint wrapper for /generate-email. Provides generate_email() and generate_bulk_emails().

• emailnator.asyncio.message_getter.MessageGetter Fetch and parse messages for a given temporary email address.

• emailnator.asyncio.builders.AsyncEmailnatorClient HTTP client singleton (uses AsyncSingletonMeta). Exposes get_client(), get_headers(), refresh_token().

• emailnator.asyncio.builders.helpers.xsrf_token_service.XsrfManager Encapsulates XSRF lifecycle: ensure_token(), refresh(), get_token(), get_headers().

• emailnator.config.config Loads config.yaml to config object with attributes BASE_URL, TIMEOUT, USE_HTTP2, USER_AGENT, GMAIL_CONFIG, PROXY.

---

Behavior notes & gotchas

• Await the constructor if using metaclass-based __ainit__: obj = await ClassName(). If you forget await, you get a coroutine object with no attributes.
• Proxy value in YAML must be null for no proxy. String "None" will break httpx.
• Cloudflare / Bot protection: EmailNator may be behind challenges (403/419). Temporary addresses and token flows can be blocked by anti-bot measures — the library attempts to read XSRF-TOKEN cookie, but if the site requires JavaScript challenges, consider using a Playwright-based flow or proper proxies.
• Event loop management: Avoid calling asyncio.run() inside already-running event loops. For synchronous wrapper, use a dedicated factory that creates its own loop safely.

---

Error handling & common troubleshooting

• coroutine object has no attribute '...' — forgot await on constructor.
• RuntimeWarning: coroutine was never awaited — coroutine was created and not awaited; search for returns of coroutines.
• ValueError: Unknown scheme for proxy URL "None" — config.PROXY is the string "None", fix YAML to null or code to coerce None.
• HTTP 419 / Page Expired — XSRF token missing or expired; check XsrfManager and cookie extraction.
• HTTP 403 Cloudflare — site-side bot protection.

---

Contributing

• Fork, branch feature/..., implement, add tests, open PR.
• Keep changes backwards-compatible for public API unless you bump major version.
• Follow project style: type annotations, Google-style docstrings, tests.

---

License

This project is licensed under GNU Affero General Public License v3 (AGPL-3.0).

---

Files to include in the repo

• README.md (this file)
• pyproject.toml / setup.cfg with dependencies and dev extras
• emailnator/config/config.yaml example
• examples/async_example.py
• examples/sync_example.py
• tests/ with unit & async tests

---

Contact

Open an issue or submit a pull request for help, bug reports, or enhancements.