LambdaMetrics Event

The LambdaMetrics event is emitted by LambdaSharp.Core when ingesting embedded CloudWatch metrics from the CloudWatch logs associated with the Lambda function. Note that Core Services must be enabled for these events to be emitted. The LambdaMetrics schema is based on the CloudWatch Embedded Metric format. It has the same structure with the additional of the following properties.

Event Schema

Type: String
Version: String
Stack: String
Function: String
GitSha: String?
GitBranch: String?
# CloudWatch Embedded Metric Properties

Event Properties

Type

The Type property holds the event type name. This property is always set to "LambdaMetrics".

Type: String

Version

The Version property holds the event type version. This property is set to "2020-05-05".

Type: String

Stack

The Stack property holds the CloudFormation stack ID containing the Lambda function.

Type: String

Function

The Function property holds logical Lambda function name as defined by its module.

Type: String

GitSha

The GitSha property holds the git SHA checksum when the module was deployed from a git repository, otherwise null.

Type: String or null

GitBranch

The GitBranch property holds the git branch name when the module was deployed from a git repository, otherwise null.

Type: String or null

Event Sample

{
  "_aws": {
    "Timestamp": 1589220705881,
    "CloudWatchMetrics": [
      {
        "Namespace": "Module:Sample.Metric",
        "Dimensions": [["Stack"], ["Stack", "Function"]],
        "Metrics": [
          { "Name": "CompletedMessages.Latency", "Unit": "Milliseconds" },
          { "Name": "CompletedMessages.Count", "Unit": "Count" }
        ]
      }
    ]
  },
  "Type": "LambdaMetrics",
  "Version": "2020-05-05",
  "CompletedMessages.Latency": 100.0,
  "CompletedMessages.Count": 1.0,
  "Stack": "Sandbox-Sample-Metric",
  "Function": "MyFunction",
  "GitSha": "DIRTY-07ed927da2d1f7fea61a1472b14e647506c3bbc7",
  "GitBranch": "WIP-v0.8"
}