從第 3 方 API 收集數據時如何更新 Firestore 文檔而不是創建新文檔

Question

下面的代碼設置為從第三方 API 收集 NBA 比賽的數據。 目前一切正常，數據存儲在 GCP Firestore 中，但問題是每次調用 API 時，它都會為每個游戲創建一個新文檔。 所以說它每天調用 3 次，同一個游戲會有 3 個不同的文件。

我想要發生的是，每次調用 API 並且游戲的數據發生更改時，它都會更新原始文檔而不是創建新文檔。

任何幫助，將不勝感激。

import requests
import json
from firebase_admin import firestore

db = firestore.Client(project='xxxx')


def bluebet_nba_odds():
    # MAKE VARIABLES GLOBAL
    global away_team_win_odds, away_team, home_team_win_odds, home_team, start_time, event_title, event_id, competition

    # API CALL

    link = 'https://xxxxxxxxxx.com.au/json/reply/MasterCategoryRequest?EventTypeID=107&WithLevelledMarkets' \
           '=true&WithLevelledMarkets=true '
    # Request data from link as 'str'
    nbadata = requests.get(link).text
    # convert 'str' to Json
    nbadata = json.loads(nbadata)

    # JSON PARSE

    for nba_odds in nbadata['MasterCategories'][2]['Categories'][0]['MasterEvents']:
        competition = nba_odds['CategoryName']
        event_id = nba_odds['MasterEventId']
        event_title = nba_odds['MasterEventName']
        start_time = nba_odds['MaxAdvertisedStartTime']
        home_team = nba_odds['Markets'][0]['OutcomeName']
        home_team_win_odds = nba_odds['Markets'][0]['Price']
        away_team = nba_odds['Markets'][1]['OutcomeName']
        away_team_win_odds = nba_odds['Markets'][1]['Price']

# WRITE TO FIRESTORE

        data = {
            'competition': competition,
            'event_id': event_id,
            'event_title': event_title,
            'start_time': start_time,
            'home_team': home_team,
            'home_team_win_odds': home_team_win_odds,
            'away_team': away_team,
            'away_team_win_odds': away_team_win_odds,
            'timestamp': firestore.SERVER_TIMESTAMP,
            }

        db.collection('bluebet_nba_season_odds').document().set(data), print('Game Data Written to Firestore')


if __name__ == "__main__":
    bluebet_nba_odds()

Answer 1

沒有 arguments 的document()每次調用時都會生成一個隨機文檔 ID。 不要那樣做。 而是為文檔命名。

db.collection('bluebet_nba_season_odds').document('you-choose-a-name-here')

查看API 文檔可能會對您有所幫助，以更好地了解 API 的工作原理，尤其是對於您正在調用的document()方法。