"No such file or directory" 与 firebase_admin python 图书馆

Question

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

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()

但随后出现以下错误：

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

即使我在浏览器中输入 url（project_name 替换为我的真实项目名称），我也从数据库中获取了 json 数据。

我该如何解决这个错误？

Answer 1

Certificate 应该指向一个 local 文件和你的 credentials/certificate。您改为将其指向您的数据库 URL，这不是本地文件，因此库会抛出错误。

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

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()

"No such file or directory" 与 firebase_admin python 图书馆

"No such file or directory" with firebase_admin python library

python

firebase

firebase-admin