yogeshnile/lambda_trigger.md

## lambda_trigger.md

      
    Raw
  

              lambda_trigger.md
            
          
    Triggers
    Description
    Requirement
  
  
    API Gateway
    Trigger AWS Lambda function over HTTPS
    API Endpoint name
API Endpoint Deployment Stage
Security Role
  
  
    AWS IoT
    Trigger AWS Lambda for performing specific action by mapping your AWS IoT Dash Button (Cloud Programmable Dash Button)
    DSN (Device Serial Number)
  
  
    Alexa Skill Kit
    Trigger AWS Lambda to build services that give new skills to Alexa
    --
  
  
    Alexa Smart Home
    Trigger AWS Lambda with desired skill
    Application ID (Skill)
  
  
    Application Load Balancer
    Trigger AWS Lambda from ALB
    Application Load Balancer
Listener (It is the port that ALP receivce traffice)
Host
Path
  
  
    CloudFront
    Trigger AWS Lambda based on difference CloudFront event.
    CloudFront distribution, Cache behaviour, CloudFront event (Origin request/response, Viewer request/response).
To set CloudFront trigger, one need to publish the version of Lambda.
Limitations:
Runtime is limited to Node.js 6.10
/tmp/ space is not available
Environment variables, DLQ & Amazon VPC's cannot be used
  
  
    CloudWatch Events
    Trigger AWS Lambda on desired time interval (rate(1 day)) or on the state change of EC2, RDS, S3, Health.
    Rule based on either Event Pattern (time interval)
Schedule Expression (Auto Scaling on events like Instance launch and terminate
AWS API call via CloudTrail
  
  
    CloudWatch Logs
    Trigger AWS Lambda based on the CloudWatch Logs
    Log Group Name
  
  
    Code Commit
    Trigger AWS Lambda based on the AWS CodeCommit version control system
    Repository Name
Event Type
  
  
    Cognito Sync Trigger
    Trigger AWS Lambda in response to event, each time the dataset is synchronized
    Cognito Identity Pool dataset
  
  
    DynamoDB
    Trigger AWS Lambda whenever the DynomoDB table is updated
    DynamoDB Table name
Batch Size(The largest number of records that AWS Lambda will retrieve from your table at the time of invoking your function. Your function receives an event with all the retrieved records)
  
  
    Kinesis
    Trigger AWS Lambda whenever the Kinesis stream is updated
    Kinesis Stream
Batch Size
  
  
    S3
    Trigger AWS Lambda in response to file dropped in S3 bucket
    Bucket Name
Event Type (Object Removed, Object Created)
  
  
    SNS
    Trigger AWS Lambda whenever the message is published to Amazon SNS Topic
    SNS Topic
  
  
    SQS
    Trigger AWS Lambda on message arrival in SQS
    SQS queue
Batch size
Limitation: It only works with Standard queue and not FIFO queue
Triggers	Description	Requirement
API Gateway	Trigger AWS Lambda function over HTTPS	API Endpoint name API Endpoint Deployment Stage Security Role
AWS IoT	Trigger AWS Lambda for performing specific action by mapping your AWS IoT Dash Button (Cloud Programmable Dash Button)	DSN (Device Serial Number)
Alexa Skill Kit	Trigger AWS Lambda to build services that give new skills to Alexa	--
Alexa Smart Home	Trigger AWS Lambda with desired skill	Application ID (Skill)
Application Load Balancer	Trigger AWS Lambda from ALB	Application Load Balancer Listener (It is the port that ALP receivce traffice) Host Path
CloudFront	Trigger AWS Lambda based on difference CloudFront event.	CloudFront distribution, Cache behaviour, CloudFront event (Origin request/response, Viewer request/response). To set CloudFront trigger, one need to publish the version of Lambda. Limitations: Runtime is limited to Node.js 6.10 /tmp/ space is not available Environment variables, DLQ & Amazon VPC's cannot be used
CloudWatch Events	Trigger AWS Lambda on desired time interval (rate(1 day)) or on the state change of EC2, RDS, S3, Health.	Rule based on either Event Pattern (time interval) Schedule Expression (Auto Scaling on events like Instance launch and terminate AWS API call via CloudTrail
CloudWatch Logs	Trigger AWS Lambda based on the CloudWatch Logs	Log Group Name
Code Commit	Trigger AWS Lambda based on the AWS CodeCommit version control system	Repository Name Event Type
Cognito Sync Trigger	Trigger AWS Lambda in response to event, each time the dataset is synchronized	Cognito Identity Pool dataset
DynamoDB	Trigger AWS Lambda whenever the DynomoDB table is updated	DynamoDB Table name Batch Size(The largest number of records that AWS Lambda will retrieve from your table at the time of invoking your function. Your function receives an event with all the retrieved records)
Kinesis	Trigger AWS Lambda whenever the Kinesis stream is updated	Kinesis Stream Batch Size
S3	Trigger AWS Lambda in response to file dropped in S3 bucket	Bucket Name Event Type (Object Removed, Object Created)
SNS	Trigger AWS Lambda whenever the message is published to Amazon SNS Topic	SNS Topic
SQS	Trigger AWS Lambda on message arrival in SQS	SQS queue Batch size Limitation: It only works with Standard queue and not FIFO queue