BmrClient

Last Updated：2020-07-20

Configure BmrClient

BmrClient is the Python client for BMR services and provides a set of methods for interaction between the caller and the BMR services.

You need to create the configuration file before creating the BmrClient. The configuration file is named as bmr_client_conf.py, and the configuration details are as follows:

#!/usr/bin/env python
#coding=utf-8

#import Python standard log module
import logging

#import BMR configuration administration module and security certification module from Python SDK
from baidubce.bce_client_configuration import BceClientConfiguration
from baidubce.auth.bce_credentials import BceCredentials

#set BmrClient’s Host, Access Key ID and Secret Access Key
host = "bmr.bj.baidubce.com"
access_key_id = "your-access-key-id"
secret_access_key = "your-secret-access-key"

#set the log file’s handle and log level
logger = logging.getLogger('baidubce.services.bmr.bmrclient')
fh = logging.FileHandler("sample.log")
fh.setLevel(logging.DEBUG)

#set the order, structure and content of log file output
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
fh.setFormatter(formatter)
logger.setLevel(logging.DEBUG)
logger.addHandler(fh)

#create BceClientConfiguration
config = BceClientConfiguration(credentials=BceCredentials(access_key_id, secret_access_key), 
                                endpoint=host)

Notes:

In the above code, the variables access_key_id and secret_access_key are assigned to the user by the system, and they are used to identify the user and verify the signature for the access to Media. The access_key_id corresponds to the “Access Key ID” in the console, and the secret_access_key corresponds to the “Access Key Secret” in the console. For the acquisition, please see the “ACCESSKEY Administration”.

The endpoint parameters of BceClientConfiguration constructor function are only defined with the specified Region-inclusive domain name; the BMR SDK services are currently available in “North China - Beijing” and “South China - Guangzhou”, and Beijing Region’s endpoint domain name is http://bmr.bj.baidubce.com and Guangzhou Region’s endpoint domain name is http://bmr.gz.baidubce.com.

Create BmrClient

After completing the above configuration, you can create a BmrClient with the following code:

import logging
import bmr_client_conf
from baidubce.services.bmr.bmr_client import BmrClient

logging.basicConfig(level=logging.DEBUG)
LOG = logging.getLogger(__name__)
CONF = bmr_client_conf

bmr_client = BmrClient(CONF.config)

Parameter Description

Python SDK sets some basic parameters by default in baidubce/bce_client_configuration.py. If you want to modify the parameter values, you can create your parameter configuration function by referring to this document, and import the function when constructing the BmrClient. The import code for reference is as follows:

from baidubce.retry_policy import BackOffRetryPolicy
from baidubce.bce_client_configuration import BceClientConfiguration
from baidubce.auth.bce_credentials import BceCredentials
from baidubce.protocol import HTTP
from baidubce.region import BEIJING

my_policy = BackOffRetryPolicy(max_error_retry=3,
                               max_delay_in_millis=20 * 1000,
                               base_interval_in_millis=300)

my_config = BceClientConfiguration(
    credentials=BceCredentials('your-access-key-id', 'your-secret-access-key'),
    endpoint='bmr_service_host',
    protocol=baidubce.protocol.HTTP,
    region=baidubce.region.BEIJING,
    connection_timeout_in_mills=50 * 1000,
    send_buf_size=1024 * 1024,
    recv_buf_size=10 * 1024 * 1024,
    retry_policy=my_policy)

# create BmrClient with my config
my_client = BmrClient(my_config)

The parameters are as follows:

Parameter	Description	Default Value
`PROTOCOL`	Protocol	baidubce.protocol.HTTP
`REGION`	Region	baidubce.region.BEIJING (currently supports Beijing region only)
`CONNECTION_TIMEOUT_IN_MILLIS`	Request timeout period (in millisecond)	50 * 1000
`SEND_BUF_SIZE`	Send buffer size	1024 * 1024
`RECV_BUF_SIZE`	Receive buffer size	10 * 1024 * 1024
`retry_policy`	Retry logic	3 times of retry at maximum, timeout 20 * 1000 millisecond, and retry interval 300 milliseconds

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BmrClient

Configure BmrClient

Create BmrClient

Parameter Description