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Code Commit

Event-driven, asynchronous invocation. CodeCommit repository events in the repository invoke a Lambda function


Getting the correlation id

JSON patch Records[*].eventId

Generating sample events

sam local generate-event codecommit repository

Request example

AWS CodeCommit message event example
  "Records": [
      "awsRegion": "us-east-2",
      "codecommit": {
        "references": [
            "commit": "5e493c6f3067653f3d04eca608b4901eb227078",
            "ref": "refs/heads/master"
      "eventId": "31ade2c7-f889-47c5-a937-1cf99e2790e9",
      "eventName": "ReferenceChanges",
      "eventPartNumber": 1,
      "eventSource": "aws:codecommit",
      "eventSourceARN": "arn:aws:codecommit:us-east-2:123456789012:lambda-pipeline-repo",
      "eventTime": "2019-03-12T20:58:25.400+0000",
      "eventTotalParts": 1,
      "eventTriggerConfigId": "0d17d6a4-efeb-46f3-b3ab-a63741badeb8",
      "eventTriggerName": "index.handler",
      "eventVersion": "1.0",
      "userIdentityARN": "arn:aws:iam::123456789012:user/intern"




Typed Lambda handlers by Language

Code Example

example prints repo url message to cloudwatch logs
import json
import boto3

codecommit = boto3.client('codecommit')

def lambda_handler(event, context):
    #Log the updated references from the event
    references = { reference['ref'] for reference in event['Records'][0]['codecommit']['references'] }
    print("References: "  + str(references))

    #Get the repository from the event and show its git clone URL
    repository = event['Records'][0]['eventSourceARN'].split(':')[5]
        response = codecommit.get_repository(repositoryName=repository)
        print("Clone URL: " +response['repositoryMetadata']['cloneUrlHttp'])
        return response['repositoryMetadata']['cloneUrlHttp']
    except Exception as e:
        print('Error getting repository {}. Make sure it exists and that your repository is in the same region as this function.'.format(repository))
        raise e

Code examples in Python and NodeJS:

Tip: Monitoring commits

See CodeCommit Repository State Change for better alternatives to monitoring CodeCommit.


Last update: 2022-09-13