Adds typing for CloudWatch Logs events (#21239)

types/aws-lambda/aws-lambda-tests.ts

@@ -65,6 +65,8 @@ var S3CreateEvent: AWSLambda.S3CreateEvent = {
 var cognitoUserPoolEvent: AWSLambda.CognitoUserPoolEvent;
 var cloudformationCustomResourceEvent: AWSLambda.CloudFormationCustomResourceEvent;
 var cloudformationCustomResourceResponse: AWSLambda.CloudFormationCustomResourceResponse;
+var cloudwatchLogsEvent: AWSLambda.CloudWatchLogsEvent;
+var cloudwatchLogsDecodedData: AWSLambda.CloudWatchLogsDecodedData;
 
 /* API Gateway Event request context */
 str = apiGwEvtReqCtx.accountId;
@@ -364,6 +366,18 @@ clientCtx = context.clientContext;
 str = identity.cognitoIdentityId;
 str = identity.cognitoIdentityPoolId;
 
+/* CloudWatch Logs */
+str = cloudwatchLogsEvent.awslogs.data;
+
+str = cloudwatchLogsDecodedData.owner;
+str = cloudwatchLogsDecodedData.logGroup;
+str = cloudwatchLogsDecodedData.logStream;
+str = cloudwatchLogsDecodedData.subscriptionFilters[0];
+str = cloudwatchLogsDecodedData.messageType;
+str = cloudwatchLogsDecodedData.logEvents[0].id;
+num = cloudwatchLogsDecodedData.logEvents[0].timestamp;
+str = cloudwatchLogsDecodedData.logEvents[0].message;
+
 /* ClientContext */
 clientContextClient = clientCtx.client;
 anyObj = clientCtx.Custom;

types/aws-lambda/index.d.ts

@@ -294,6 +294,37 @@ type CloudFormationCustomResourceFailedResponse = CloudFormationCustomResourceRe
 
 export type CloudFormationCustomResourceResponse = CloudFormationCustomResourceSuccessResponse | CloudFormationCustomResourceFailedResponse;
 
+/**
+ * See http://docs.aws.amazon.com/lambda/latest/dg/eventsources.html#eventsources-cloudwatch-logs
+ */
+interface CloudWatchLogsEvent {
+    awslogs: CloudWatchLogsEventData;
+}
+
+interface CloudWatchLogsEventData {
+    data: string;
+}
+
+interface CloudWatchLogsDecodedData {
+    owner: string;
+    logGroup: string;
+    logStream: string;
+    subscriptionFilters: string[];
+    messageType: string;
+    logEvents: CloudWatchLogsLogEvent[];
+}
+
+/**
+ * See http://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/SubscriptionFilters.html#LambdaFunctionExample
+ */
+interface CloudWatchLogsLogEvent {
+    id: string;
+    timestamp: number;
+    message: string;
+}
+
+
+
 // Context
 // http://docs.aws.amazon.com/lambda/latest/dg/nodejs-prog-model-context.html
 interface Context {