AWS re:Invent serverless recap day: Amazon EventBridge

© 2020, Amazon Web Services, Inc. or its Affiliates.
Amazon EventBridge
Julian Wood Ben Smith
@julian_wood @benjamin_l_s
Senior Developer Advocates, AWS Serverless

Events are observable, not directed
Directed Commands Observable Events

Event bus
Abstracts producers
and consumers
Selects and filters
events

Amazon
EventBridge

• Fully managed, pay-as-you-go
• Native integration with SaaS
providers
• 90+ AWS services as sources
• 17 AWS services as targets
• $1 per million events put into the
bus
• No additional cost for delivery
Amazon
EventBridge
A serverless event bus service
for SaaS and AWS services

Key benefits of Amazon EventBridge
Decoupling Simplified event
routing
Improved availability Third party
integration

Amazon EventBridge

Amazon EventBridge
Example event:
{
"source": "custom.myATMapp",
"detail-type": “transaction",
"detail": {
“action": ”withdrawal",
“result": “approved",
"location": "NY-NYC-001",
"amount": 350,
"partnerBank": "Example Bank",
...
}
}

Amazon EventBridge
Example event:
{
"detail": {
"amount": 350,
...
}
}
Example rule:
{
"source": ["custom.myATMapp"]
}

Amazon EventBridge
Example event:
{
"detail": {
"amount": 350,
...
}
}
Example rule:
{
"detail": {
“action": [“withdrawal", “deposit"]
}
}

Amazon EventBridge
Example event:
{
"detail": {
"amount": 350,
...
}
}
Example rule:
{
"detail-type": [“balance"]
}

Content Filtering

Amazon EventBridge
Example event:
{
"detail": {
"amount": 350,
...
}
}
Example rule = over $300:
{
"source": [ "custom.myATMapp" ],
"detail-type": [ "transaction" ],
"detail": {
"amount": [ { "numeric": [ ">", 300 ] }
]
}
}

Amazon EventBridge
Example event:
{
"detail": {
"amount": 350,
...
}
}
Example rule = ATMs in NYC:
{
"detail": {
"location": [ { "prefix": "NY-NYC-" } ]
]
}
}

Amazon EventBridge
Example event:
{
"detail": {
"amount": 350,
...
}
}
Example rule = combined:
{
"detail": {
"partnerBank": [ { "exists": false } ],
"location": [{"anything-but":"NY-NYC-
002"}]]
}
}

EventBridge Comparison Operators
Comparison Example Rule syntax
Null UserID is null “UserID”: [ null ]
Empty LastName is empty “LastName”: [“”]
Equals Name is “Alice” “Name”: [ “Alice” ]
And Location is “NewYork” and Day is “Monday” “Location”: [ “NewYork” ], “Day”: [“Monday”]
Or PaymentType is “Credit” or “Debit” “PaymentType”: [ “Credit”, “Debit”]
Not Weather is anything but “Raining” “Weather”: [ { “anything-but”: [ “Raining” ] } ]
Numeric (equals) Price is 100 “Price”: [ { “numeric”: [ “=”, 100 ] } ]
Numeric (range)
Price is more than 10, and less than or equal to
to 20
“Price”: [ { “numeric”: [ “>”, 10, “<=”, 20 ] } ]
Exists ProductName exists “ProductName”: [ { “exists”: true } ]
Does not exist ProductName does not exist “ProductName”: [ { “exists”: false } ]
Begins with Region is in the US “Region”: [ {“prefix”: “us-“ } ]

Partner Integrations

Partner Demo

Schema registry and discovery

• Source of truth for sharing
schema
• Explicitly published and auto-
discovered
• Integrations forVS Code and
JetBrains
• Language bindings for Java,
Python, andTypeScript
Schema registry and discovery

ZenDeskAWS LambdaAmazon EventBridge
UserWrites
Review
Amazon Comprehend
MongoDB
Atlas
Negative
Demo : Schema registry and discovery

Thank you
Julian Wood Ben Smith
@julian_wood @benjamin_l_s
Senior Developer Advocates, AWS Serverless

AWS re:Invent serverless recap day: Amazon EventBridge

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