### Install pyjwt-key-fetcher

Source: https://github.com/ioxiocom/pyjwt-key-fetcher/blob/main/README.md

Install the package using pip.

```bash
pip install pyjwt-key-fetcher
```

--------------------------------

### Async JWT Verification Example

Source: https://github.com/ioxiocom/pyjwt-key-fetcher/blob/main/README.md

Demonstrates fetching JWKs asynchronously and verifying a JWT token using PyJWT. Ensure the token and audience are correct for your use case.

```python
import asyncio

import jwt

from pyjwt_key_fetcher import AsyncKeyFetcher


async def main():
    fetcher = AsyncKeyFetcher()
    # Token and options copied from
    # https://pyjwt.readthedocs.io/en/2.6.0/usage.html#retrieve-rsa-signing-keys-from-a-jwks-endpoint
    token = "eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ik5FRTFRVVJCT1RNNE16STVSa0ZETlRZeE9UVTFNRGcyT0Rnd1EwVXpNVGsxUWpZeVJrUkZRdyJ9.eyJpc3MiOiJodHRwczovL2Rldi04N2V2eDlydS5hdXRoMC5jb20vIiwic3ViIjoiYVc0Q2NhNzl4UmVMV1V6MGFFMkg2a0QwTzNjWEJWdENAY2xpZW50cyIsImF1ZCI6Imh0dHBzOi8vZXhwZW5zZXMtYXBpIiwiaWF0IjoxNTcyMDA2OTU0LCJleHAiOjE1NzIwMDY5NjQsImF6cCI6ImFXNENjYTc5eFJlTFdVejBhRTJINmtEME8zY1hCVnRDIiwiZ3R5IjoiY2xpZW50LWNyZWRlbnRpYWxzIn0.PUxE7xn52aTCohGiWoSdMBZGiYAHwE5FYie0Y1qUT68IHSTXwXVd6hn02HTah6epvHHVKA2FqcFZ4GGv5VTHEvYpeggiiZMgbxFrmTEY0csL6VNkX1eaJGcuehwQCRBKRLL3zKmA5IKGy5GeUnIbpPHLHDxr-GXvgFzsdsyWlVQvPX2xjeaQ217r2PtxDeqjlf66UYl6oY6AqNS8DH3iryCvIfCcybRZkc_hdy-6ZMoKT6Piijvk_aXdm7-QQqKJFHLuEqrVSOuBqqiNfVrG27QzAPuPOxvfXTVLXL2jek5meH6n-VWgrBdoMFH93QEszEDowDAEhQPHVs0xj7SIzA"
    key_entry = await fetcher.get_key(token)
    token = jwt.decode(
        jwt=token,
        options={"verify_exp": False},
        audience="https://expenses-api",
        **key_entry
    )
    print(token)


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

```

--------------------------------

### AsyncKeyFetcher with Custom Configuration Path

Source: https://github.com/ioxiocom/pyjwt-key-fetcher/blob/main/README.md

Override the default path for loading issuer configuration. This is useful when the configuration is not located at the standard '.well-known/openid-configuration'.

```python
AsyncKeyFetcher(config_path="/.well-known/dataspace/party-configuration.json")
```

--------------------------------

### Implement Custom HTTP Client

Source: https://github.com/ioxiocom/pyjwt-key-fetcher/blob/main/README.md

Create a custom HTTP client by inheriting from `HTTPClient` and implementing an async function to fetch JSON from a URL. This allows for custom fetching logic beyond the default `aiohttp` client.

```python
class CustomHTTPClient(HTTPClient):
    async def fetch_json(self, url: str) -> dict:
        # Implement custom logic here
        pass
```

--------------------------------

### Configure Static Issuer

Source: https://github.com/ioxiocom/pyjwt-key-fetcher/blob/main/README.md

Use this when an issuer does not provide an OpenID configuration. Specify the `jwks_uri` directly in the static configuration.

```python
AsyncKeyFetcher(
    static_issuer_config={
        "https://example.com": {
            "jwks_uri": "https://example.com/.well-known/jwks.json",
        },
    },
)
```

--------------------------------

### AsyncKeyFetcher with Valid Issuers

Source: https://github.com/ioxiocom/pyjwt-key-fetcher/blob/main/README.md

Limit the issuers from which keys can be fetched by providing a list of valid issuers during initialization.

```python
AsyncKeyFetcher(valid_issuers=["https://example.com"])
```

--------------------------------

### AsyncKeyFetcher with Custom Cache Settings

Source: https://github.com/ioxiocom/pyjwt-key-fetcher/blob/main/README.md

Adjust the cache size and time-to-live (TTL) for fetched JWK data. This controls how long data for different issuers is cached and how often re-fetches occur.

```python
AsyncKeyFetcher(cache_maxsize=10, cache_ttl=2*60*60)
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.