JavaScript / ECMAScript

CloudWatch Log Stream Path in JS

Match AWS CloudWatch log group / stream paths like `/aws/lambda/my-function` or `/aws/ecs/cluster-name`.

Try it in the JS tester →

Pattern

regexJS
\/aws\/(?:lambda|ecs|eks|apigateway|codebuild|stepfunctions|rds|cloudtrail)\/[\w\-.\/]+   (flags: g)

JavaScript / ECMAScript code

jsJavaScript
const re = new RegExp("\\/aws\\/(?:lambda|ecs|eks|apigateway|codebuild|stepfunctions|rds|cloudtrail)\\/[\\w\\-.\\/]+", "g");
const input = "Group: /aws/lambda/api-gateway-handler";
const matches = [...input.matchAll(re)];
console.log(matches.map(m => m[0]));

Uses `String.prototype.matchAll` for global iteration (Node 12+ / all modern browsers).

How the pattern works

Anchors on the AWS-managed log group prefix `/aws/`, then a known service name from the alternation, then the resource path. The character class [\w\-.\/] allows word chars, hyphens, dots, and slashes — covering nested paths like `/aws/lambda/prod-handler/2024/01/15`.

Examples

Input

Group: /aws/lambda/api-gateway-handler

Matches

  • /aws/lambda/api-gateway-handler

Input

/aws/ecs/my-cluster/web-service

Matches

  • /aws/ecs/my-cluster/web-service

Input

/myapp/custom/logs

No match

—

Same pattern, other engines

Python (re)

Supported

See how this pattern looks (and behaves) in Python's stdlib `re` module.

Go (RE2)

Supported

See how this pattern looks (and behaves) in Go's `regexp` package (RE2 engine).

← Back to CloudWatch Log Stream Path overview (all engines)