Lambda メタデータエンドポイントの使用

from aws_lambda_powertools.utilities.lambda_metadata import get_lambda_metadata

def handler(event, context):
    metadata = get_lambda_metadata()
    az_id = metadata.availability_zone_id  # e.g., "use1-az1"

    return {"az_id": az_id}

import { getMetadata } from '@aws-lambda-powertools/commons/utils/metadata';

const metadata = await getMetadata();

export const handler = async () => {
  const { AvailabilityZoneID: azId } = metadata;
  return azId;
};

import software.amazon.lambda.powertools.metadata.LambdaMetadata;
import software.amazon.lambda.powertools.metadata.LambdaMetadataClient;

public class App implements RequestHandler<Object, String> {

    @Override
    public String handleRequest(Object input, Context context) {
        LambdaMetadata metadata = LambdaMetadataClient.get();
        String azId = metadata.getAvailabilityZoneId(); // e.g., "use1-az1"

        return "{\"azId\": \"" + azId + "\"}";
    }
}

using AWS.Lambda.Powertools.Metadata;

public class Function
{
    public string Handler(object input, ILambdaContext context)
    {
        var azId = LambdaMetadata.AvailabilityZoneId;
        return $"Running in AZ: {azId}";
    }
}

# Variables are automatically set by Lambda
METADATA_ENDPOINT="http://${AWS_LAMBDA_METADATA_API}/2026-01-15/metadata/execution-environment"

# Make the request
RESPONSE=$(curl -s -H "Authorization: Bearer ${AWS_LAMBDA_METADATA_TOKEN}" "$METADATA_ENDPOINT")

# Parse the AZ ID
AZ_ID=$(echo "$RESPONSE" | jq -r '.AvailabilityZoneID')

echo "Function is running in AZ ID: $AZ_ID"