|
| 1 | +import time |
| 2 | + |
| 3 | +import requests |
| 4 | + |
| 5 | +from .constants import DEFAULT_NETWORK_TIMEOUT_SEC |
| 6 | +from .errors import NucleusAPIError |
| 7 | +from .logger import logger |
| 8 | +from .retry_strategy import RetryStrategy |
| 9 | + |
| 10 | + |
| 11 | +class Connection: |
| 12 | + """Wrapper of HTTP requests to the Nucleus endpoint.""" |
| 13 | + |
| 14 | + def __init__(self, api_key: str, endpoint: str = None): |
| 15 | + self.api_key = api_key |
| 16 | + self.endpoint = endpoint |
| 17 | + |
| 18 | + def __repr__(self): |
| 19 | + return ( |
| 20 | + f"Connection(api_key='{self.api_key}', endpoint='{self.endpoint}')" |
| 21 | + ) |
| 22 | + |
| 23 | + def __eq__(self, other): |
| 24 | + return ( |
| 25 | + self.api_key == other.api_key and self.endpoint == other.endpoint |
| 26 | + ) |
| 27 | + |
| 28 | + def delete(self, route: str): |
| 29 | + return self.make_request({}, route, requests_command=requests.delete) |
| 30 | + |
| 31 | + def get(self, route: str): |
| 32 | + return self.make_request({}, route, requests_command=requests.get) |
| 33 | + |
| 34 | + def post(self, payload: dict, route: str): |
| 35 | + return self.make_request( |
| 36 | + payload, route, requests_command=requests.post |
| 37 | + ) |
| 38 | + |
| 39 | + def put(self, payload: dict, route: str): |
| 40 | + return self.make_request(payload, route, requests_command=requests.put) |
| 41 | + |
| 42 | + def make_request( |
| 43 | + self, payload: dict, route: str, requests_command=requests.post |
| 44 | + ) -> dict: |
| 45 | + """ |
| 46 | + Makes a request to Nucleus endpoint and logs a warning if not |
| 47 | + successful. |
| 48 | +
|
| 49 | + :param payload: given payload |
| 50 | + :param route: route for the request |
| 51 | + :param requests_command: requests.post, requests.get, requests.delete |
| 52 | + :return: response JSON |
| 53 | + """ |
| 54 | + endpoint = f"{self.endpoint}/{route}" |
| 55 | + |
| 56 | + logger.info("Make request to %s", endpoint) |
| 57 | + |
| 58 | + for retry_wait_time in RetryStrategy.sleep_times: |
| 59 | + response = requests_command( |
| 60 | + endpoint, |
| 61 | + json=payload, |
| 62 | + headers={"Content-Type": "application/json"}, |
| 63 | + auth=(self.api_key, ""), |
| 64 | + timeout=DEFAULT_NETWORK_TIMEOUT_SEC, |
| 65 | + ) |
| 66 | + logger.info( |
| 67 | + "API request has response code %s", response.status_code |
| 68 | + ) |
| 69 | + if response.status_code not in RetryStrategy.statuses: |
| 70 | + break |
| 71 | + time.sleep(retry_wait_time) |
| 72 | + |
| 73 | + if not response.ok: |
| 74 | + self.handle_bad_response(endpoint, requests_command, response) |
| 75 | + |
| 76 | + return response.json() |
| 77 | + |
| 78 | + def handle_bad_response( |
| 79 | + self, |
| 80 | + endpoint, |
| 81 | + requests_command, |
| 82 | + requests_response=None, |
| 83 | + aiohttp_response=None, |
| 84 | + ): |
| 85 | + raise NucleusAPIError( |
| 86 | + endpoint, requests_command, requests_response, aiohttp_response |
| 87 | + ) |
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