无法使用 redis python API 在我的 gcp 项目中列出 Redis 实例答案

【问题标题】：Unable to List Redis Instances in my gcp project using the redis python API无法使用 redis python API 在我的 gcp 项目中列出 Redis 实例
【发布时间】：2020-06-23 00:42:46
【问题描述】：

这是我根据此处的 Redis_API 文档编写的源代码我犯了什么错误 https://googleapis.dev/python/redis/latest/gapic/v1/api.html

from google.oauth2.service_account import Credentials
from google.cloud import redis_v1

LOGGER = logging.getLogger(__name__)

class GcpMemorystore:
    def __init__(self, credentials, project_id: str, zone: str):
        self.credentials = credentials
        self.project_id = project_id
        self.zone = zone
        self.redisClient = redis_v1.CloudRedisClient().from_service_account_json(credentials)


    """List all Redis instances"""
    def list_all_instances(self, prefix=None):
        """
        Delete all Objects from all buckets
        followed by deletion of all subsequent buckets
        :param prefix:
        :return:
        """
        #instances = self.redisClient.list_instances().client.from_service_account_json(self.credentials)
        parent = self.redisClient.location_path( self.project_id, self.zone )
        instances = self.redisClient.list_instances()
        print(instances)

但是，每当我运行此代码时，我都会遇到此错误

Traceback (most recent call last):
  File "main.py", line 17, in <module>
    GcpMemorystore.list_all_instances(service_account_file)
  File "/Users/shoaib_nasir/PycharmProjects/gcp-cost-saver/GcpResources/gcp_memorystore.py", line 25, in list_all_instances
    parent = self.redisClient.location_path( '[eng-node]', '[us-central1-a]' )
AttributeError: 'str' object has no attribute 'redisClient'
(venv) CA-SHOAIBN-M:gcp-cost-saver shoaib_nasir$

【问题讨论】：

标签： python-3.x redis google-api-python-client google-cloud-python

【解决方案1】：

根据错误，您正在从类构造函数中调用该方法，将其转换为一个简单的函数。这就是为什么self 只是您传递给调用的字符串。

要么将类实例作为第一个参数传递，要么直接从类实例调用方法更好。

【讨论】：

【解决方案2】：

实际上我设法让它工作并注意到一些问题。首先，我的凭据有问题，其次我将“区域”传递给 API 调用，而是必须传递区域，其中 region="us-central1"

class GcpMemorystore:
    def __init__(self, credentials, project_id: str, region: str):
        self.credentials = credentials
        self.project_id = project_id
        self.region = region
        self.redisClient = redis_v1beta1.CloudRedisClient(credentials=credentials) 


    """List all Redis instances"""
    def list_all_instances(self, prefix=None):
        parent = self.redisClient.location_path(self.project_id, self.region)
        return self.redisClient.list_instances(parent).pages:

调用类方法对我来说效果很好

redis_list = GcpMemorystore(credentials, project_id, region).list_all_instances()

【讨论】：