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Published: May 23, 2024 License: Apache-2.0 Imports: 36 Imported by: 0

README

GO SDK 文档

概述

本文档主要介绍百度云Go语言版的开发者工具包(SDK),用户可基于该SDK使用Go语言接入百度云的各项产品(详见支持产品列表)。SDK封装了便捷的调用接口,保持了多种编程语言版的使用方式、调用接口相似,提供了统一的错误码和返回格式,方便开发者调试。

安装SDK工具包

运行环境

GO SDK可以在go1.3及以上环境下运行。

安装SDK

直接从github下载

使用go get工具从github进行下载:

go get github.com/baidubce/bce-sdk-go

SDK目录结构

bce-sdk-go
|--auth                   //BCE签名和权限认证
|--bce                    //BCE公用基础组件
|--http                   //BCE的http通信模块
|--services               //BCE相关服务目录
|  |--appblb              //应用型负载均衡服务目录
|  |--as                  //弹性伸缩
|  |--bbc                 //物理服务器
|  |--bcc                 //云服务器
|  |--bcm                 //云监控
|  |--bec                 //百度边缘计算
|  |--bie                 //百度智能边缘
|  |--billing             //百度云财务
|  |--bls                 //日志服务
|  |--bos                 //BOS服务目录
|  |  |--bos_client.go    //BOS客户端入口
|  |  |--api              //BOS相关API目录
|  |     |--bucket.go     //BOS的Bucket相关API实现
|  |     |--object.go     //BOS的Object相关API实现
|  |     |--multipart.go  //BOS的Multipart相关API实现
|  |     |--module.go     //BOS相关API的数据模型
|  |     |--util.go       //BOS相关API实现使用的工具
|  |--bvw                 //BVW服务目录
|  |--cas                 //证书服务
|  |--cce                 //容器引擎
|  |--cdn                 //内容分布网络
|  |--cert                //SSL证书服务
|  |--cfc                 //函数计算
|  |--cfs                 //CFS文件存储服务
|  |--cfw                 //云防火墙
|  |--csn                 //云智能网
|  |--ddc                 //DDC数据库专属集群
|  |--dts                 //数据传输服务
|  |--eccr                //容器镜像服务企业版
|  |--eip                 //弹性公网IP
|  |--endpoint            //SNIC服务网卡
|  |--eni                 //ENIC弹性网卡
|  |--esg                 //企业安全组
|  |--etGateway           //专线网关
|  |--havip               //高可用虚拟IP
|  |--iam                 //身份管理
|  |--media               //音视频处理MCP
|  |--rds                 //云数据库
|  |--scs                 //SCS服务目录
|  |--sms                 //SMS服务目录
|  |--sts                 //STS服务目录
|  |--vca                 //VCA服务目录
|  |--vcr                 //VCR服务目录
|  |--vpc                 //私有网络
|  |--vpn                 //VPN网关
|  |--mms                 //多模态媒资检索目录
|--util                   //BCE公用的工具实现

卸载SDK

预期卸载SDK时,删除下载的源码即可。

使用步骤

确认Endpoint

在使用SDK之前,需确认您将接入的百度云产品的Endpoint(服务域名)。以百度对象存储产品为例,可阅读BOS访问域名的部分,理解Endpoint相关的概念。其他服务类似,需理解并确认对应服务的Endpoint。

创建Client对象

每种具体的服务都有一个Client对象,为开发者与对应的服务进行交互封装了一系列易用的方法。开发者可参考SDK中具体服务对应的目录下的说明文档使用相应的服务。

调用功能接口

开发者基于创建的对应服务的Client对象,即可调用相应的功能接口,使用百度云产品的功能。

示例

下面以百度云对象存储服务(BOS)为例,给出一个基本的使用示例,详细使用说明请参考各服务的详细说明文档。

import (
	"github.com/baidubce/bce-sdk-go/services/bos"
)

func main() {
	// 用户的Access Key ID和Secret Access Key
	ACCESS_KEY_ID, SECRET_ACCESS_KEY := "<your-access-key-id>", "<your-secret-access-key>"

	// BOS服务的Endpoint
	ENDPOINT := "<domain-name>"

	// 创建BOS服务的Client
	bosClient, err := bos.NewClient(AK, SK, ENDPOINT)

	// 创建Bucket
	location, err := bosClient.PutBucket("<your-bucket-name>"); err != nil {
	if err != nil {
		fmt.Println("create bucket failed:", err)
	}
	fmt.Println("create bucket success in", location)

	// 上传对象
	etag, err := bosClient.PutObjectFromFile("<your-bucket-name>", "<your-object-name>", "<file-name>", nil)
	if err != nil {
		fmt.Println("upload file to BOS failed:", err)
	}
	fmt.Println("upload file to BOS success, etag = ", etag)
}

配置

使用HTTPS协议

该SDK支持使用HTTPS协议访问百度云的服务产品。要使用HTTPS协议,只需在您创建对应服务的Client对象时指定的Endpoint中指明使用https协议的域名即可,SDK会自动识别并使用HTTPS协议访问。

详细配置

开发者使用GO SDK时,创建的对应服务的Client对象,其导出字段Config提供如下参数以便支持详细配置:

配置项名称 类型 含义
Endpoint string 请求服务的域名
ProxyUrl string 客户端请求的代理地址
Region string 请求资源的区域
UserAgent string 用户名称,HTTP请求的User-Agent头
Credentials *auth.BceCredentials 请求的鉴权对象,分为普通AK/SK与STS两种
SignOption *auth.SignOptions 认证字符串签名选项
Retry RetryPolicy 连接重试策略
ConnectionTimeoutInMillis int 连接超时时间,单位毫秒,默认20分钟

说明:

  1. Credentials字段使用auth.NewBceCredentialsauth.NewSessionBceCredentials函数创建,默认使用前者,后者为使用STS鉴权时使用。
  2. SignOption字段为生成签名字符串时的选项,详见下表说明:
名称 类型 含义
HeadersToSign map[string]struct{} 生成签名字符串时使用的HTTP头
Timestamp int64 生成的签名字符串中使用的时间戳,默认使用请求发送时的值
ExpireSeconds int 签名字符串的有效期
 其中,HeadersToSign默认为`Host`,`Content-Type`,`Content-Length`,`Content-MD5`;TimeStamp一般为零值,表示使用调用生成认证字符串时的时间戳,用户一般不应该明确指定该字段的值;ExpireSeconds默认为1800秒即30分钟。
  1. Retry字段指定重试策略,目前支持两种:NoRetryPolicyBackOffRetryPolicy。默认使用后者,该重试策略是指定最大重试次数、最长重试时间和重试基数,按照重试基数乘以2的指数级增长的方式进行重试,直到达到最大重试测试或者最长重试时间为止。

开发者可据此进行详细参数的配置,下面给出部分配置示例:

// client为某一种具体服务的`Client`对象

// 配置请求代理地址
client.Config.ProxyUrl = "127.0.0.1:8080"

// 配置不进行重试,默认为Back Off重试
client.Config.Retry = bce.NewNoRetryPolicy()

// 配置连接超时时间为30秒
client.Config.ConnectionTimeoutInMillis = 30 * 1000

// 配置签名使用的HTTP请求头为`Host`
client.Config.SignOption.HeadersToSign = map[string]struct{}{"Host": struct{}{}}

// 配置签名的有效期为30秒
client.Config.SignOption.ExpireSeconds = 30

错误处理

GO语言以error类型标识错误,定义了如下两种错误类型:

错误类型 说明
BceClientError 用户操作产生的错误
BceServiceError BOS服务返回的错误

用户使用SDK调用各服务的相关接口,除了返回所需的结果之外还会返回错误,用户可以获取相关错误的详细信息进行处理。实例如下:

// bosClient 为已创建的BOS服务的Client对象
bucketLocation, err := bosClient.PutBucket("test-bucket")
if err != nil {
	switch realErr := err.(type) {
	case *bce.BceClientError:
		fmt.Println("client occurs error:", realErr.Error())
	case *bce.BceServiceError:
		fmt.Println("service occurs error:", realErr.Error())
	default:
		fmt.Println("unknown error:", err)
	}
}
fmt.Println("create bucket success, bucket location:", bucketLocation)

客户端异常

客户端异常表示客户端尝试向百度云服务发送请求以及数据传输时遇到的异常。例如,当发送请求时网络连接不可用时,则会返回BceClientError;当上传文件时发生IO异常时,也会抛出BceClientError。

服务端异常

当服务端出现异常时,百度云服务端会返回给用户相应的错误信息,以便定位问题。每种服务端的异常需参考各服务的官网文档。

SDK日志

GO SDK自行实现了支持六个级别、三种输出(标准输出、标准错误、文件)、基本格式设置的日志模块,导入路径为github.com/baidubce/bce-sdk-go/util/log。输出为文件时支持设置五种日志滚动方式(不滚动、按天、按小时、按分钟、按大小),此时还需设置输出日志文件的目录。

该日志模块无任何外部依赖,开发者使用GO SDK开发项目,可以直接引用该日志模块自行在项目中使用。可使用GO SDK使用的包级别的日志对象,也可创建新的日志对象,详见如下示例:

// 直接使用包级别全局日志对象(会和GO SDK自身日志一并输出)
log.SetLogHandler(log.STDERR)
log.Debugf("%s", "logging message using the log package in the sdk")

// 创建新的日志对象(依据自定义设置输出日志,与GO SDK日志输出分离)
myLogger := log.NewLogger()
myLogger.SetLogHandler(log.FILE)
myLogger.SetLogDir("/home/log")
myLogger.SetRotateType(log.ROTATE_SIZE)
myLogger.Info("this is my own logger from the sdk")

支持产品列表

产品名称 产品缩写 导入路径 说明文档
应用型负载均衡 APPBLB github.com/baidubce/bce-sdk-go/services/appblb APPBLB.md
物理服务器 BBC github.com/baidubce/bce-sdk-go/services/bbc BBC.md
云服务器 BCC github.com/baidubce/bce-sdk-go/services/bcc BCC.md
云监控 BCM github.com/baidubce/bce-sdk-go/services/bcm BCM.md
边缘计算节点 BEC github.com/baidubce/bce-sdk-go/services/bec BEC.md
百度智能边缘 BIE github.com/baidubce/bce-sdk-go/services/bie
百度云财务 BILLING github.com/baidubce/bce-sdk-go/services/billing BILLING.md
负载均衡 BLB github.com/baidubce/bce-sdk-go/services/blb BLB.md
日志服务 BLS github.com/baidubce/bce-sdk-go/services/bls BLS.md
百度对象存储 BOS github.com/baidubce/bce-sdk-go/services/bos BOS.md
百度视频创作分发平台 BVW github.com/baidubce/bce-sdk-go/services/bvw BVW.md
证书服务 CAS github.com/baidubce/bce-sdk-go/services/cas CAS.md
容器引擎 CCE github.com/baidubce/bce-sdk-go/services/cce CCE.md
内容分布网络 CDN github.com/baidubce/bce-sdk-go/services/cdn CDN.md
SSL证书服务 CERT github.com/baidubce/bce-sdk-go/services/cert CERT.md
函数计算 CFC github.com/baidubce/bce-sdk-go/services/cfc CFC.md
文件存储服务 CFS github.com/baidubce/bce-sdk-go/services/cfs CFS.md
云防火墙 CFW github.com/baidubce/bce-sdk-go/services/cfw CFW.md
云智能网 CSN github.com/baidubce/bce-sdk-go/services/csn CSN.md
文档服务 DOC github.com/baidubce/bce-sdk-go/services/doc DOC.md
数据传输服务 DTS github.com/baidubce/bce-sdk-go/services/dts DTS.md
容器镜像服务 企业版 ECCR github.com/baidubce/bce-sdk-go/services/eccr ECCR.md
弹性公网IP EIP github.com/baidubce/bce-sdk-go/services/eip EIP.md
ENIC弹性网卡 ENIC github.com/baidubce/bce-sdk-go/services/eni ENIC.md
企业安全组 ESG github.com/baidubce/bce-sdk-go/services/esg ESG.md
高可用虚拟IP HAVIP github.com/baidubce/bce-sdk-go/services/havip HAVIP.md
专线网关 EtGateway github.com/baidubce/bce-sdk-go/services/etGateway ETGateway.md
身份管理 IAM github.com/baidubce/bce-sdk-go/services/iam IAM.md
内网DNS LOCALDNS github.com/baidubce/bce-sdk-go/services/localDns LOCALDNS.md
音视频处理MCP MCP github.com/baidubce/bce-sdk-go/services/media MCP.md
云数据库 RDS github.com/baidubce/bce-sdk-go/services/rds RDS.md
分布式缓存服务 SCS github.com/baidubce/bce-sdk-go/services/scs SCS.md
SMS简单消息服务 SMS github.com/baidubce/bce-sdk-go/services/sms SMS.md
SNIC服务网卡 SNIC github.com/baidubce/bce-sdk-go/services/endpoint SNIC.md
安全Token服务 STS github.com/baidubce/bce-sdk-go/services/sts STS.md
视频内容分析 VCA github.com/baidubce/bce-sdk-go/services/vca
视频内容审核 VCR github.com/baidubce/bce-sdk-go/services/vcr
私有网络 VPC github.com/baidubce/bce-sdk-go/services/vpc VPC.md
VPN网关 VPN github.com/baidubce/bce-sdk-go/services/vpn VPN.md
多模态媒资检索 MMS github.com/baidubce/bce-sdk-go/services/mms MMS.md
数据库专属集群 DDC github.com/baidubce/bce-sdk-go/services/ddc DDC.md
资源管理 RES_MANAGER github.com/baidubce/bce-sdk-go/services/resmanager RES_MANAGER.md
标签 TAG github.com/baidubce/bce-sdk-go/services/tag TAG.md

Documentation

Overview

Package sdk imports all sub packages to build all of them when calling `go install', `go build' or `go get' commands.

Directories

Path Synopsis
Package auth implements the authorization functionality for BCE.
Package auth implements the authorization functionality for BCE.
Package bce implements the infrastructure to access BCE services.
Package bce implements the infrastructure to access BCE services.
examples
appblb
* Copyright 2024 Baidu, Inc.
* Copyright 2024 Baidu, Inc.
bbc
bcc
blb
* Copyright 2024 Baidu, Inc.
* Copyright 2024 Baidu, Inc.
csn
eip
eni
esg
vpn
Package http defines the structure of request and response which used to access the BCE services as well as the http constant headers and and methods.
Package http defines the structure of request and response which used to access the BCE services as well as the http constant headers and and methods.
services
appblb
Package appblb defines the Application BLB services of BCE.
Package appblb defines the Application BLB services of BCE.
as
bbc
Package bbc defines the BBC services of BCE.
Package bbc defines the BBC services of BCE.
bcc
bcc/api
Package api defines all APIs supported by the BCC service of BCE.
Package api defines all APIs supported by the BCC service of BCE.
bci
bcm
bec
bec/api
Package api defines all APIs supported by the BEC service of BCE.
Package api defines all APIs supported by the BEC service of BCE.
bie
Package bie defines the bie services of BCE.
Package bie defines the bie services of BCE.
bie/api
Package api defines all APIs supported by the BIE service of BCE.
Package api defines all APIs supported by the BIE service of BCE.
billing
Package billing provides the billing service.
Package billing provides the billing service.
blb
Package blb defines the Normal BLB services of BCE.
Package blb defines the Normal BLB services of BCE.
bls
bos
Package bos defines the BOS services of BCE.
Package bos defines the BOS services of BCE.
bos/api
Package api defines all APIs supported by the BOS service of BCE.
Package api defines all APIs supported by the BOS service of BCE.
bvw
cas
cce
cdn
cert
cert.go - the certificate APIs definition supported by the Cert service
cert.go - the certificate APIs definition supported by the Cert service
cfc
cfs
Package cfs defines the Normal CFS services of BCE.
Package cfs defines the Normal CFS services of BCE.
cfw
* Copyright 2022 Baidu, Inc.
* Copyright 2022 Baidu, Inc.
csn
* Copyright 2022 Baidu, Inc.
* Copyright 2022 Baidu, Inc.
dbsc
util.go - define the utilities for api package of BBC service
util.go - define the utilities for api package of BBC service
dcc
ddc
Package ddc defines the DDC services of BCE.
Package ddc defines the DDC services of BCE.
ddc/ddc_util
util.go - define the utilities for api package of RDS service
util.go - define the utilities for api package of RDS service
ddc/v2
ddc.go - the ddc APIs definition supported by the DDC service
ddc.go - the ddc APIs definition supported by the DDC service
dns
* Copyright 2022 Baidu, Inc.
* Copyright 2022 Baidu, Inc.
doc
doc/api
Package api defines all APIs supported by the DOC service of BCE.
Package api defines all APIs supported by the DOC service of BCE.
dts
Package dts defines the DTS services of BCE.
Package dts defines the DTS services of BCE.
eip
Package eip defines the EIP services of BCE.
Package eip defines the EIP services of BCE.
endpoint
endpoint.go - the endpoint APIs definition supported by the endpoint service
endpoint.go - the endpoint APIs definition supported by the endpoint service
eni
eni.go - the eni APIs definition supported by the eni service
eni.go - the eni APIs definition supported by the eni service
esg
et
Package et defines the et services of BCE.
Package et defines the et services of BCE.
etGateway
Package vpn defines the vpn services of BCE.
Package vpn defines the vpn services of BCE.
gaiadb
Package gaiadb defines the GAIADB services of BCE.
Package gaiadb defines the GAIADB services of BCE.
iam
Package iam defines the IAM service of BCE.
Package iam defines the IAM service of BCE.
lbdc
Package lbdc defines the LBDC services of BCE.
Package lbdc defines the LBDC services of BCE.
localDns
* Copyright 2022 Baidu, Inc.
* Copyright 2022 Baidu, Inc.
mms
mongodb
Package mongodb defines the MONGODB services of BCE.
Package mongodb defines the MONGODB services of BCE.
oos
quotacenter
Package quotacenter defines the QuotaCenter services of BCE.
Package quotacenter defines the QuotaCenter services of BCE.
rds
Package rds defines the RDS services of BCE.
Package rds defines the RDS services of BCE.
resmanager
resmanager.go - the resmanager APIs definition supported by the resmanager service
resmanager.go - the resmanager APIs definition supported by the resmanager service
scs
Package scs defines the SCS services of BCE.
Package scs defines the SCS services of BCE.
sms
sts
Package sts defines the STS service of BCE.
Package sts defines the STS service of BCE.
sts/api
Package api defines all APIs supported by the STS service of BCE.
Package api defines all APIs supported by the STS service of BCE.
tag
tag.go - the resmanager APIs definition supported by the resmanager service
tag.go - the resmanager APIs definition supported by the resmanager service
userservice
Package userservice defines the User Service services of BCE.
Package userservice defines the User Service services of BCE.
vca
Package vca defines the VCA services of BCE.
Package vca defines the VCA services of BCE.
vca/api
Package api defines all APIs supported by the VCA service of BCE.
Package api defines all APIs supported by the VCA service of BCE.
vcr
Package vcr defines the VCR services of BCE.
Package vcr defines the VCR services of BCE.
vcr/api
Package api defines all APIs supported by the VCR service of BCE.
Package api defines all APIs supported by the VCR service of BCE.
vpc
Package vpc defines the VPC services of BCE.
Package vpc defines the VPC services of BCE.
vpn
Package vpn defines the vpn services of BCE.
Package vpn defines the vpn services of BCE.
Package util defines the common utilities including string and time.
Package util defines the common utilities including string and time.
log
Package log implements the log facilities for BCE.
Package log implements the log facilities for BCE.

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