Question

我想通过firebase数据库使用python（firebase_admin）的官方库而不是pyrebase或python-firebase来检索一些数据。

我尝试执行以下代码行：

from firebase_admin import db
from firebase_admin import credentials
import firebase_admin

cred = credentials.Certificate('https://project_name.firebaseio.com/.json')
firebase_admin.initialize_app(cred)

result = db.Query.get()

然后我收到以下错误：

FileNotFoundError: [Errno 2] No such file or directory: 'https://project_name.firebaseio.com/.json'

即使我在浏览器上输入此网址（project_name替换为我的真实项目名称），我也会从数据库中获取数据的json。

如何解决此错误？

Answer 1

Certificate应指向包含凭据/证书的本地文件。您将其指向您的数据库URL，该URL不是本地文件，因此库会引发错误。

来自documentation on initializing the Python SDK：

import firebase_admin
from firebase_admin import credentials
from firebase_admin import db

# Fetch the service account key JSON file contents
cred = credentials.Certificate('path/to/serviceAccountKey.json')

# Initialize the app with a service account, granting admin privileges
firebase_admin.initialize_app(cred, {
    'databaseURL': 'https://databaseName.firebaseio.com'
})

# As an admin, the app has access to read and write all data, regardless of Security Rules
ref = db.reference('restricted_access/secret_document')
print(ref.get())

Answer 2

试试这个，这对我有用

<块引用>

import os
from firebase_admin import credentials, firestore, initialize_app

# Initialize Firestore DB
data = os.path.abspath(os.path.dirname(__file__)) + "/serviceAccountKey.json"
cred = credentials.Certificate(data)
default_app = initialize_app(cred)
db = firestore.client()

＆＃34;没有这样的文件或目录＆＃34;使用firebase_admin python库

2 个答案: