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# EventBridge 使用场景 AWS SDKs
以下代码示例向您展示了如何在中 EventBridge实现常见场景 AWS SDKs。这些场景向您展示了如何通过在其中调用多个函数 EventBridge 或与其他函数组合来完成特定任务 AWS 服务。每个场景都包含完整源代码的链接，您可以在其中找到有关如何设置和运行代码的说明。
场景以中等水平的经验为目标，可帮助您结合具体环境了解服务操作。
**Topics**
+ [创建并触发规则](example_eventbridge_Scenario_createAndTriggerARule_section.md)
+ [将事件通知发送至 EventBridge](example_s3_Scenario_PutBucketNotificationConfiguration_section.md)
+ [使用计划的事件调用 Lambda 函数](example_cross_LambdaScheduledEvents_section.md)
# EventBridge 使用 AWS 软件开发工具包在 Amazon 中创建和触发规则
以下代码示例展示了如何在 Amazon 中创建和触发规则 EventBridge。
------
#### [ Ruby ]
**适用于 Ruby 的 SDK**
还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/eventbridge#code-examples)中查找完整示例，了解如何进行设置和运行。
按照正确的顺序调用函数。
```
require 'aws-sdk-sns'
require 'aws-sdk-iam'
require 'aws-sdk-cloudwatchevents'
require 'aws-sdk-ec2'
require 'aws-sdk-cloudwatch'
require 'aws-sdk-cloudwatchlogs'
require 'securerandom'
```
检查为该函数提供的主题中是否存在指定的 Amazon Simple Notification Service (Amazon SNS) 主题。
```
# Checks whether the specified Amazon SNS
# topic exists among those provided to this function.
# This is a helper function that is called by the topic_exists? function.
#
# @param topics [Array] An array of Aws::SNS::Types::Topic objects.
# @param topic_arn [String] The ARN of the topic to find.
# @return [Boolean] true if the topic ARN was found; otherwise, false.
# @example
# sns_client = Aws::SNS::Client.new(region: 'us-east-1')
# response = sns_client.list_topics
# if topic_found?(
# response.topics,
# 'arn:aws:sns:us-east-1:111111111111:aws-doc-sdk-examples-topic'
# )
# puts 'Topic found.'
# end
def topic_found?(topics, topic_arn)
topics.each do |topic|
return true if topic.topic_arn == topic_arn
end
false
end
```
检查 Amazon SNS 中可供调用方使用的主题中，是否存在指定主题。
```
# Checks whether the specified topic exists among those available to the
# caller in Amazon SNS.
#
# @param sns_client [Aws::SNS::Client] An initialized Amazon SNS client.
# @param topic_arn [String] The ARN of the topic to find.
# @return [Boolean] true if the topic ARN was found; otherwise, false.
# @example
# exit 1 unless topic_exists?(
# Aws::SNS::Client.new(region: 'us-east-1'),
# 'arn:aws:sns:us-east-1:111111111111:aws-doc-sdk-examples-topic'
# )
def topic_exists?(sns_client, topic_arn)
puts "Searching for topic with ARN '#{topic_arn}'..."
response = sns_client.list_topics
if response.topics.count.positive?
if topic_found?(response.topics, topic_arn)
puts 'Topic found.'
return true
end
while response.next_page?
response = response.next_page
next unless response.topics.count.positive?
if topic_found?(response.topics, topic_arn)
puts 'Topic found.'
return true
end
end
end
puts 'Topic not found.'
false
rescue StandardError => e
puts "Topic not found: #{e.message}"
false
end
```
在 Amazon SNS 中创建主题，然后订阅一个电子邮件地址，以接收有关该主题的通知。
```
# Creates a topic in Amazon SNS
# and then subscribes an email address to receive notifications to that topic.
#
# @param sns_client [Aws::SNS::Client] An initialized Amazon SNS client.
# @param topic_name [String] The name of the topic to create.
# @param email_address [String] The email address of the recipient to notify.
# @return [String] The ARN of the topic that was created.
# @example
# puts create_topic(
# Aws::SNS::Client.new(region: 'us-east-1'),
# 'aws-doc-sdk-examples-topic',
# 'mary@example.com'
# )
def create_topic(sns_client, topic_name, email_address)
puts "Creating the topic named '#{topic_name}'..."
topic_response = sns_client.create_topic(name: topic_name)
puts "Topic created with ARN '#{topic_response.topic_arn}'."
subscription_response = sns_client.subscribe(
topic_arn: topic_response.topic_arn,
protocol: 'email',
endpoint: email_address,
return_subscription_arn: true
)
puts 'Subscription created with ARN ' \
"'#{subscription_response.subscription_arn}'. Have the owner of the " \
"email address '#{email_address}' check their inbox in a few minutes " \
'and confirm the subscription to start receiving notification emails.'
topic_response.topic_arn
rescue StandardError => e
puts "Error creating or subscribing to topic: #{e.message}"
'Error'
end
```
检查为该函数提供的角色中是否存在指定的 AWS Identity and Access Management (IAM) 角色。
```
# Checks whether the specified AWS Identity and Access Management (IAM)
# role exists among those provided to this function.
# This is a helper function that is called by the role_exists? function.
#
# @param roles [Array] An array of Aws::IAM::Role objects.
# @param role_arn [String] The ARN of the role to find.
# @return [Boolean] true if the role ARN was found; otherwise, false.
# @example
# iam_client = Aws::IAM::Client.new(region: 'us-east-1')
# response = iam_client.list_roles
# if role_found?(
# response.roles,
# 'arn:aws:iam::111111111111:role/aws-doc-sdk-examples-ec2-state-change'
# )
# puts 'Role found.'
# end
def role_found?(roles, role_arn)
roles.each do |role|
return true if role.arn == role_arn
end
false
end
```
检查 IAM 中可供调用方使用的角色中，是否存在指定角色。
```
# Checks whether the specified role exists among those available to the
# caller in AWS Identity and Access Management (IAM).
#
# @param iam_client [Aws::IAM::Client] An initialized IAM client.
# @param role_arn [String] The ARN of the role to find.
# @return [Boolean] true if the role ARN was found; otherwise, false.
# @example
# exit 1 unless role_exists?(
# Aws::IAM::Client.new(region: 'us-east-1'),
# 'arn:aws:iam::111111111111:role/aws-doc-sdk-examples-ec2-state-change'
# )
def role_exists?(iam_client, role_arn)
puts "Searching for role with ARN '#{role_arn}'..."
response = iam_client.list_roles
if response.roles.count.positive?
if role_found?(response.roles, role_arn)
puts 'Role found.'
return true
end
while response.next_page?
response = response.next_page
next unless response.roles.count.positive?
if role_found?(response.roles, role_arn)
puts 'Role found.'
return true
end
end
end
puts 'Role not found.'
false
rescue StandardError => e
puts "Role not found: #{e.message}"
false
end
```
在 IAM 中创建一个角色。
```
# Creates a role in AWS Identity and Access Management (IAM).
# This role is used by a rule in Amazon EventBridge to allow
# that rule to operate within the caller's account.
# This role is designed to be used specifically by this code example.
#
# @param iam_client [Aws::IAM::Client] An initialized IAM client.
# @param role_name [String] The name of the role to create.
# @return [String] The ARN of the role that was created.
# @example
# puts create_role(
# Aws::IAM::Client.new(region: 'us-east-1'),
# 'aws-doc-sdk-examples-ec2-state-change'
# )
def create_role(iam_client, role_name)
puts "Creating the role named '#{role_name}'..."
response = iam_client.create_role(
assume_role_policy_document: {
'Version': '2012-10-17',
'Statement': [
{
'Sid': '',
'Effect': 'Allow',
'Principal': {
'Service': 'events.amazonaws.com'
},
'Action': 'sts:AssumeRole'
}
]
}.to_json,
path: '/',
role_name: role_name
)
puts "Role created with ARN '#{response.role.arn}'."
puts 'Adding access policy to role...'
iam_client.put_role_policy(
policy_document: {
'Version': '2012-10-17',
'Statement': [
{
'Sid': 'CloudWatchEventsFullAccess',
'Effect': 'Allow',
'Resource': '*',
'Action': 'events:*'
},
{
'Sid': 'IAMPassRoleForCloudWatchEvents',
'Effect': 'Allow',
'Resource': 'arn:aws:iam::*:role/AWS_Events_Invoke_Targets',
'Action': 'iam:PassRole'
}
]
}.to_json,
policy_name: 'CloudWatchEventsPolicy',
role_name: role_name
)
puts 'Access policy added to role.'
response.role.arn
rescue StandardError => e
puts "Error creating role or adding policy to it: #{e.message}"
puts 'If the role was created, you must add the access policy ' \
'to the role yourself, or delete the role yourself and try again.'
'Error'
end
```
检查为该函数提供的 EventBridge 规则中是否存在指定的规则。
```
# Checks whether the specified Amazon EventBridge rule exists among
# those provided to this function.
# This is a helper function that is called by the rule_exists? function.
#
# @param rules [Array] An array of Aws::CloudWatchEvents::Types::Rule objects.
# @param rule_arn [String] The name of the rule to find.
# @return [Boolean] true if the name of the rule was found; otherwise, false.
# @example
# cloudwatchevents_client = Aws::CloudWatch::Client.new(region: 'us-east-1')
# response = cloudwatchevents_client.list_rules
# if rule_found?(response.rules, 'aws-doc-sdk-examples-ec2-state-change')
# puts 'Rule found.'
# end
def rule_found?(rules, rule_name)
rules.each do |rule|
return true if rule.name == rule_name
end
false
end
```
检查指定规则是否存在于中调用者可用的规则中 EventBridge。
```
# Checks whether the specified rule exists among those available to the
# caller in Amazon EventBridge.
#
# @param cloudwatchevents_client [Aws::CloudWatchEvents::Client]
# An initialized Amazon EventBridge client.
# @param rule_name [String] The name of the rule to find.
# @return [Boolean] true if the rule name was found; otherwise, false.
# @example
# exit 1 unless rule_exists?(
# Aws::CloudWatch::Client.new(region: 'us-east-1')
# 'aws-doc-sdk-examples-ec2-state-change'
# )
def rule_exists?(cloudwatchevents_client, rule_name)
puts "Searching for rule with name '#{rule_name}'..."
response = cloudwatchevents_client.list_rules
if response.rules.count.positive?
if rule_found?(response.rules, rule_name)
puts 'Rule found.'
return true
end
while response.next_page?
response = response.next_page
next unless response.rules.count.positive?
if rule_found?(response.rules, rule_name)
puts 'Rule found.'
return true
end
end
end
puts 'Rule not found.'
false
rescue StandardError => e
puts "Rule not found: #{e.message}"
false
end
```
在中创建规则 EventBridge。
```
# Creates a rule in Amazon EventBridge.
# This rule is triggered whenever an available instance in
# Amazon EC2 changes to the specified state.
# This rule is designed to be used specifically by this code example.
#
# Prerequisites:
#
# - A role in AWS Identity and Access Management (IAM) that is designed
# to be used specifically by this code example.
# - A topic in Amazon SNS.
#
# @param cloudwatchevents_client [Aws::CloudWatchEvents::Client]
# An initialized Amazon EventBridge client.
# @param rule_name [String] The name of the rule to create.
# @param rule_description [String] Some description for this rule.
# @param instance_state [String] The state that available instances in
# Amazon EC2 must change to, to
# trigger this rule.
# @param role_arn [String] The Amazon Resource Name (ARN) of the IAM role.
# @param target_id [String] Some identifying string for the rule's target.
# @param topic_arn [String] The ARN of the Amazon SNS topic.
# @return [Boolean] true if the rule was created; otherwise, false.
# @example
# exit 1 unless rule_created?(
# Aws::CloudWatch::Client.new(region: 'us-east-1'),
# 'aws-doc-sdk-examples-ec2-state-change',
# 'Triggers when any available EC2 instance starts.',
# 'running',
# 'arn:aws:iam::111111111111:role/aws-doc-sdk-examples-ec2-state-change',
# 'sns-topic',
# 'arn:aws:sns:us-east-1:111111111111:aws-doc-sdk-examples-topic'
# )
def rule_created?(
cloudwatchevents_client,
rule_name,
rule_description,
instance_state,
role_arn,
target_id,
topic_arn
)
puts "Creating rule with name '#{rule_name}'..."
put_rule_response = cloudwatchevents_client.put_rule(
name: rule_name,
description: rule_description,
event_pattern: {
'source': [
'aws.ec2'
],
'detail-type': [
'EC2 Instance State-change Notification'
],
'detail': {
'state': [
instance_state
]
}
}.to_json,
state: 'ENABLED',
role_arn: role_arn
)
puts "Rule created with ARN '#{put_rule_response.rule_arn}'."
put_targets_response = cloudwatchevents_client.put_targets(
rule: rule_name,
targets: [
{
id: target_id,
arn: topic_arn
}
]
)
if put_targets_response.key?(:failed_entry_count) &&
put_targets_response.failed_entry_count.positive?
puts 'Error(s) adding target to rule:'
put_targets_response.failed_entries.each do |failure|
puts failure.error_message
end
false
else
true
end
rescue StandardError => e
puts "Error creating rule or adding target to rule: #{e.message}"
puts 'If the rule was created, you must add the target ' \
'to the rule yourself, or delete the rule yourself and try again.'
false
end
```
在 Amazon Logs 中查看调用者可用的日志组中是否存在指定的 CloudWatch 日志组。
```
# Checks to see whether the specified log group exists among those available
# to the caller in Amazon CloudWatch Logs.
#
# @param cloudwatchlogs_client [Aws::CloudWatchLogs::Client] An initialized
# Amazon CloudWatch Logs client.
# @param log_group_name [String] The name of the log group to find.
# @return [Boolean] true if the log group name was found; otherwise, false.
# @example
# exit 1 unless log_group_exists?(
# Aws::CloudWatchLogs::Client.new(region: 'us-east-1'),
# 'aws-doc-sdk-examples-cloudwatch-log'
# )
def log_group_exists?(cloudwatchlogs_client, log_group_name)
puts "Searching for log group with name '#{log_group_name}'..."
response = cloudwatchlogs_client.describe_log_groups(
log_group_name_prefix: log_group_name
)
if response.log_groups.count.positive?
response.log_groups.each do |log_group|
if log_group.log_group_name == log_group_name
puts 'Log group found.'
return true
end
end
end
puts 'Log group not found.'
false
rescue StandardError => e
puts "Log group not found: #{e.message}"
false
end
```
在 “日志” 中创建 CloudWatch 日志组。
```
# Creates a log group in Amazon CloudWatch Logs.
#
# @param cloudwatchlogs_client [Aws::CloudWatchLogs::Client] An initialized
# Amazon CloudWatch Logs client.
# @param log_group_name [String] The name of the log group to create.
# @return [Boolean] true if the log group name was created; otherwise, false.
# @example
# exit 1 unless log_group_created?(
# Aws::CloudWatchLogs::Client.new(region: 'us-east-1'),
# 'aws-doc-sdk-examples-cloudwatch-log'
# )
def log_group_created?(cloudwatchlogs_client, log_group_name)
puts "Attempting to create log group with the name '#{log_group_name}'..."
cloudwatchlogs_client.create_log_group(log_group_name: log_group_name)
puts 'Log group created.'
true
rescue StandardError => e
puts "Error creating log group: #{e.message}"
false
end
```
在 Logs 中将事件写入 CloudWatch 日志流。
```
# Writes an event to a log stream in Amazon CloudWatch Logs.
#
# Prerequisites:
#
# - A log group in Amazon CloudWatch Logs.
# - A log stream within the log group.
#
# @param cloudwatchlogs_client [Aws::CloudWatchLogs::Client] An initialized
# Amazon CloudWatch Logs client.
# @param log_group_name [String] The name of the log group.
# @param log_stream_name [String] The name of the log stream within
# the log group.
# @param message [String] The message to write to the log stream.
# @param sequence_token [String] If available, the sequence token from the
# message that was written immediately before this message. This sequence
# token is returned by Amazon CloudWatch Logs whenever you programmatically
# write a message to the log stream.
# @return [String] The sequence token that is returned by
# Amazon CloudWatch Logs after successfully writing the message to the
# log stream.
# @example
# puts log_event(
# Aws::EC2::Client.new(region: 'us-east-1'),
# 'aws-doc-sdk-examples-cloudwatch-log'
# '2020/11/19/53f985be-199f-408e-9a45-fc242df41fEX',
# "Instance 'i-033c48ef067af3dEX' restarted.",
# '495426724868310740095796045676567882148068632824696073EX'
# )
def log_event(
cloudwatchlogs_client,
log_group_name,
log_stream_name,
message,
sequence_token
)
puts "Attempting to log '#{message}' to log stream '#{log_stream_name}'..."
event = {
log_group_name: log_group_name,
log_stream_name: log_stream_name,
log_events: [
{
timestamp: (Time.now.utc.to_f.round(3) * 1_000).to_i,
message: message
}
]
}
event[:sequence_token] = sequence_token unless sequence_token.empty?
response = cloudwatchlogs_client.put_log_events(event)
puts 'Message logged.'
response.next_sequence_token
rescue StandardError => e
puts "Message not logged: #{e.message}"
end
```
重启亚马逊弹性计算云 (Amazon EC2) 实例，并将有关相关活动的信息添加到日志中的日志流 CloudWatch 中。
```
# Restarts an Amazon EC2 instance
# and adds information about the related activity to a log stream
# in Amazon CloudWatch Logs.
#
# Prerequisites:
#
# - The Amazon EC2 instance to restart.
# - The log group in Amazon CloudWatch Logs to add related activity
# information to.
#
# @param ec2_client [Aws::EC2::Client] An initialized Amazon EC2 client.
# @param cloudwatchlogs_client [Aws::CloudWatchLogs::Client]
# An initialized Amazon CloudWatch Logs client.
# @param instance_id [String] The ID of the instance.
# @param log_group_name [String] The name of the log group.
# @return [Boolean] true if the instance was restarted and the information
# was written to the log stream; otherwise, false.
# @example
# exit 1 unless instance_restarted?(
# Aws::EC2::Client.new(region: 'us-east-1'),
# Aws::CloudWatchLogs::Client.new(region: 'us-east-1'),
# 'i-033c48ef067af3dEX',
# 'aws-doc-sdk-examples-cloudwatch-log'
# )
def instance_restarted?(
ec2_client,
cloudwatchlogs_client,
instance_id,
log_group_name
)
log_stream_name = "#{Time.now.year}/#{Time.now.month}/#{Time.now.day}/" \
"#{SecureRandom.uuid}"
cloudwatchlogs_client.create_log_stream(
log_group_name: log_group_name,
log_stream_name: log_stream_name
)
sequence_token = ''
puts "Attempting to stop the instance with the ID '#{instance_id}'. " \
'This might take a few minutes...'
ec2_client.stop_instances(instance_ids: [instance_id])
ec2_client.wait_until(:instance_stopped, instance_ids: [instance_id])
puts 'Instance stopped.'
sequence_token = log_event(
cloudwatchlogs_client,
log_group_name,
log_stream_name,
"Instance '#{instance_id}' stopped.",
sequence_token
)
puts 'Attempting to restart the instance. This might take a few minutes...'
ec2_client.start_instances(instance_ids: [instance_id])
ec2_client.wait_until(:instance_running, instance_ids: [instance_id])
puts 'Instance restarted.'
sequence_token = log_event(
cloudwatchlogs_client,
log_group_name,
log_stream_name,
"Instance '#{instance_id}' restarted.",
sequence_token
)
true
rescue StandardError => e
puts 'Error creating log stream or stopping or restarting the instance: ' \
"#{e.message}"
log_event(
cloudwatchlogs_client,
log_group_name,
log_stream_name,
"Error stopping or starting instance '#{instance_id}': #{e.message}",
sequence_token
)
false
end
```
显示有关中某条规则的活动信息 EventBridge。
```
# Displays information about activity for a rule in Amazon EventBridge.
#
# Prerequisites:
#
# - A rule in Amazon EventBridge.
#
# @param cloudwatch_client [Amazon::CloudWatch::Client] An initialized
# Amazon CloudWatch client.
# @param rule_name [String] The name of the rule.
# @param start_time [Time] The timestamp that determines the first datapoint
# to return. Can also be expressed as DateTime, Date, Integer, or String.
# @param end_time [Time] The timestamp that determines the last datapoint
# to return. Can also be expressed as DateTime, Date, Integer, or String.
# @param period [Integer] The interval, in seconds, to check for activity.
# @example
# display_rule_activity(
# Aws::CloudWatch::Client.new(region: 'us-east-1'),
# 'aws-doc-sdk-examples-ec2-state-change',
# Time.now - 600, # Start checking from 10 minutes ago.
# Time.now, # Check up until now.
# 60 # Check every minute during those 10 minutes.
# )
def display_rule_activity(
cloudwatch_client,
rule_name,
start_time,
end_time,
period
)
puts 'Attempting to display rule activity...'
response = cloudwatch_client.get_metric_statistics(
namespace: 'AWS/Events',
metric_name: 'Invocations',
dimensions: [
{
name: 'RuleName',
value: rule_name
}
],
start_time: start_time,
end_time: end_time,
period: period,
statistics: ['Sum'],
unit: 'Count'
)
if response.key?(:datapoints) && response.datapoints.count.positive?
puts "The event rule '#{rule_name}' was triggered:"
response.datapoints.each do |datapoint|
puts " #{datapoint.sum} time(s) at #{datapoint.timestamp}"
end
else
puts "The event rule '#{rule_name}' was not triggered during the " \
'specified time period.'
end
rescue StandardError => e
puts "Error getting information about event rule activity: #{e.message}"
end
```
显示日志组中所有日志流的 CloudWatch 日志信息。
```
# Displays log information for all of the log streams in a log group in
# Amazon CloudWatch Logs.
#
# Prerequisites:
#
# - A log group in Amazon CloudWatch Logs.
#
# @param cloudwatchlogs_client [Amazon::CloudWatchLogs::Client] An initialized
# Amazon CloudWatch Logs client.
# @param log_group_name [String] The name of the log group.
# @example
# display_log_data(
# Amazon::CloudWatchLogs::Client.new(region: 'us-east-1'),
# 'aws-doc-sdk-examples-cloudwatch-log'
# )
def display_log_data(cloudwatchlogs_client, log_group_name)
puts 'Attempting to display log stream data for the log group ' \
"named '#{log_group_name}'..."
describe_log_streams_response = cloudwatchlogs_client.describe_log_streams(
log_group_name: log_group_name,
order_by: 'LastEventTime',
descending: true
)
if describe_log_streams_response.key?(:log_streams) &&
describe_log_streams_response.log_streams.count.positive?
describe_log_streams_response.log_streams.each do |log_stream|
get_log_events_response = cloudwatchlogs_client.get_log_events(
log_group_name: log_group_name,
log_stream_name: log_stream.log_stream_name
)
puts "\nLog messages for '#{log_stream.log_stream_name}':"
puts '-' * (log_stream.log_stream_name.length + 20)
if get_log_events_response.key?(:events) &&
get_log_events_response.events.count.positive?
get_log_events_response.events.each do |event|
puts event.message
end
else
puts 'No log messages for this log stream.'
end
end
end
rescue StandardError => e
puts 'Error getting information about the log streams or their messages: ' \
"#{e.message}"
end
```
向来电者显示提醒，提醒他们手动清理他们不再需要的任何关联 AWS 资源。
```
# Displays a reminder to the caller to manually clean up any associated
# AWS resources that they no longer need.
#
# @param topic_name [String] The name of the Amazon SNS topic.
# @param role_name [String] The name of the IAM role.
# @param rule_name [String] The name of the Amazon EventBridge rule.
# @param log_group_name [String] The name of the Amazon CloudWatch Logs log group.
# @param instance_id [String] The ID of the Amazon EC2 instance.
# @example
# manual_cleanup_notice(
# 'aws-doc-sdk-examples-topic',
# 'aws-doc-sdk-examples-cloudwatch-events-rule-role',
# 'aws-doc-sdk-examples-ec2-state-change',
# 'aws-doc-sdk-examples-cloudwatch-log',
# 'i-033c48ef067af3dEX'
# )
def manual_cleanup_notice(
topic_name, role_name, rule_name, log_group_name, instance_id
)
puts '-' * 10
puts 'Some of the following AWS resources might still exist in your account.'
puts 'If you no longer want to use this code example, then to clean up'
puts 'your AWS account and avoid unexpected costs, you might want to'
puts 'manually delete any of the following resources if they exist:'
puts "- The Amazon SNS topic named '#{topic_name}'."
puts "- The IAM role named '#{role_name}'."
puts "- The Amazon EventBridge rule named '#{rule_name}'."
puts "- The Amazon CloudWatch Logs log group named '#{log_group_name}'."
puts "- The Amazon EC2 instance with the ID '#{instance_id}'."
end
```
+ 有关 API 详细信息，请参阅《适用于 Ruby 的 AWS SDK API Reference》**中的以下主题。
+ [PutEvents](https://docs.aws.amazon.com/goto/SdkForRubyV3/eventbridge-2015-10-07/PutEvents)
+ [PutRule](https://docs.aws.amazon.com/goto/SdkForRubyV3/eventbridge-2015-10-07/PutRule)
------
有关 S AWS DK 开发者指南和代码示例的完整列表，请参阅[EventBridge 与 AWS SDK 一起使用](sdk-general-information-section.md)。本主题还包括有关入门的信息以及有关先前的 SDK 版本的详细信息。
# EventBridge 使用软件开发工具包向亚马逊发送 AWS S3 事件通知
以下代码示例演示如何允许存储桶向 Amazon SNS 主题和 Amazon SQS 队列发送 S3 事件通知， EventBridge 以及如何将通知路由到 Amazon SNS 主题和 Amazon SQS 队列。
------
#### [ Java ]
**适用于 Java 的 SDK 2.x**
还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/s3#code-examples) 中查找完整示例，了解如何进行设置和运行。
```
/** This method configures a bucket to send events to AWS EventBridge and creates a rule
* to route the S3 object created events to a topic and a queue.
*
* @param bucketName Name of existing bucket
* @param topicArn ARN of existing topic to receive S3 event notifications
* @param queueArn ARN of existing queue to receive S3 event notifications
*
* An AWS CloudFormation stack sets up the bucket, queue, topic before the method runs.
*/
public static String setBucketNotificationToEventBridge(String bucketName, String topicArn, String queueArn) {
try {
// Enable bucket to emit S3 Event notifications to EventBridge.
s3Client.putBucketNotificationConfiguration(b -> b
.bucket(bucketName)
.notificationConfiguration(b1 -> b1
.eventBridgeConfiguration(
SdkBuilder::build)
).build()).join();
// Create an EventBridge rule to route Object Created notifications.
PutRuleRequest putRuleRequest = PutRuleRequest.builder()
.name(RULE_NAME)
.eventPattern("""
{
"source": ["aws.s3"],
"detail-type": ["Object Created"],
"detail": {
"bucket": {
"name": ["%s"]
}
}
}
""".formatted(bucketName))
.build();
// Add the rule to the default event bus.
PutRuleResponse putRuleResponse = eventBridgeClient.putRule(putRuleRequest)
.whenComplete((r, t) -> {
if (t != null) {
logger.error("Error creating event bus rule: " + t.getMessage(), t);
throw new RuntimeException(t.getCause().getMessage(), t);
}
logger.info("Event bus rule creation request sent successfully. ARN is: {}", r.ruleArn());
}).join();
// Add the existing SNS topic and SQS queue as targets to the rule.
eventBridgeClient.putTargets(b -> b
.eventBusName("default")
.rule(RULE_NAME)
.targets(List.of (
Target.builder()
.arn(queueArn)
.id("Queue")
.build(),
Target.builder()
.arn(topicArn)
.id("Topic")
.build())
)
).join();
return putRuleResponse.ruleArn();
} catch (S3Exception e) {
System.err.println(e.awsErrorDetails().errorMessage());
System.exit(1);
}
return null;
}
```
+ 有关 API 详细信息，请参阅《AWS SDK for Java 2.x API Reference》**中的以下主题。
+ [PutBucketNotificationConfiguration](https://docs.aws.amazon.com/goto/SdkForJavaV2/s3-2006-03-01/PutBucketNotificationConfiguration)
+ [PutRule](https://docs.aws.amazon.com/goto/SdkForJavaV2/eventbridge-2015-10-07/PutRule)
+ [PutTargets](https://docs.aws.amazon.com/goto/SdkForJavaV2/eventbridge-2015-10-07/PutTargets)
------
有关 S AWS DK 开发者指南和代码示例的完整列表，请参阅[EventBridge 与 AWS SDK 一起使用](sdk-general-information-section.md)。本主题还包括有关入门的信息以及有关先前的 SDK 版本的详细信息。
# 使用计划的事件调用 Lambda 函数
以下代码示例演示如何创建由 Amazon EventBridge 计划事件调用的 AWS Lambda 函数。
------
#### [ Java ]
**适用于 Java 的 SDK 2.x**
演示如何创建调用函数的 Amazon EventBridge 计划事件。 AWS Lambda 配置 EventBridge 为使用 cron 表达式来调度 Lambda 函数的调用时间。在本示例中，您使用 Lambda Java 运行时 API 创建 Lambda 函数。此示例调用不同的 AWS 服务来执行特定的用例。此示例展示了如何创建一个应用程序，在其一周年纪念日时向员工发送移动短信表示祝贺。
有关如何设置和运行的完整源代码和说明，请参阅上的完整示例[GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/usecases/creating_scheduled_events)。
**本示例中使用的服务**
+ CloudWatch 日志
+ DynamoDB
+ EventBridge
+ Lambda
+ Amazon SNS
------
#### [ JavaScript ]
**适用于 JavaScript (v3) 的软件开发工具包**
演示如何创建调用函数的 Amazon EventBridge 计划事件。 AWS Lambda 配置 EventBridge 为使用 cron 表达式来调度 Lambda 函数的调用时间。在此示例中，您将使用 Lambda 运行时 API 创建一个 Lambda 函数。 JavaScript 此示例调用不同的 AWS 服务来执行特定的用例。此示例展示了如何创建一个应用程序，在其一周年纪念日时向员工发送移动短信表示祝贺。
有关如何设置和运行的完整源代码和说明，请参阅上的完整示例[GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascriptv3/example_code/cross-services/lambda-scheduled-events)。
该示例也可在 [适用于 JavaScript 的 AWS SDK v3 开发人员指南](https://docs.aws.amazon.com/sdk-for-javascript/v3/developer-guide/scheduled-events-invoking-lambda-example.html)中找到。
**本示例中使用的服务**
+ CloudWatch 日志
+ DynamoDB
+ EventBridge
+ Lambda
+ Amazon SNS
------
#### [ Python ]
**适用于 Python 的 SDK（Boto3）**
此示例说明如何将 AWS Lambda 函数注册为计划的 Amazon EventBridge 事件的目标。Lambda 处理程序将友好的消息和完整的事件数据写入 Amazon L CloudWatch ogs 以供日后检索。
+ 部署 Lambda 函数。
+ 创建 EventBridge 计划事件并将 Lambda 函数设为目标。
+ 授予允许 EventBridge 调用 Lambda 函数的权限。
+ 打印来自 CloudWatch Logs 的最新数据以显示计划调用的结果。
+ 清理演示期间创建的所有资源。
最好在上查看此示例 GitHub。有关如何设置和运行的完整源代码和说明，请参阅上的完整示例[GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/lambda#readme)。
**本示例中使用的服务**
+ CloudWatch 日志
+ DynamoDB
+ EventBridge
+ Lambda
+ Amazon SNS
------
有关 S AWS DK 开发者指南和代码示例的完整列表，请参阅[EventBridge 与 AWS SDK 一起使用](sdk-general-information-section.md)。本主题还包括有关入门的信息以及有关先前的 SDK 版本的详细信息。