Verbose logging for AWS JS SDK v3
When programming with the AWS SDK, developers sometimes want to debug a specific HTTP request when invoking an SDK API. Due to the poor documentation of AWS JS SDK v3, it takes a lot of work to find a way to print the verbose logging of AWS SDK by asking it to the LLMs.
Below is a practical tip for enabling verbose logging for AWS JS SDK v3.
Solution 1 - specify a custom logger for AWS SDK clients
1import { DescribeParametersCommand, SSMClient } from "@aws-sdk/client-ssm";
2import * as log4js from "log4js";
3
4log4js.configure({
5 appenders: { out: { type: "stdout" } },
6 categories: { default: { appenders: ["out"], level: "debug" } },
7});
8
9const logger = log4js.getLogger();
10
11const ssmClient = new SSMClient({
12 logger: logger,
13});Solution 2 - use middleware to hook the life cyele of request
1import { DescribeParametersCommand, SSMClient } from "@aws-sdk/client-ssm";
2
3const logRequestMiddleware = (next: any, _context: any) => async (args: any) => {
4 console.log('Request:', args.request);
5 return next(args);
6};
7
8const ssmClient = new SSMClient({
9});
10
11ssmClient.middlewareStack.add(logRequestMiddleware, { step: 'finalizeRequest' });See complete working example gist below,