Feature request: implement parser for middy middleware

[am29d]

Use case

Using middy middleware we should be able to parse event based on built in schema or provided custom schema with envelopes.

Solution/User Experience

import { parser } from '@aws-lambda-powertools/parser/middleware';
import middy from '@middy/core';
import { EventBridgeEnvelope } from '@aws-lambda-powertools/parser/envelopes';
 
const order = z.object({
    id: z.number(),
    description: z.string(),
    items: z.array(orderItem),
});
 
const lambdaHandler = async (_event: z.infer<typeof order>, _context: any) => {
    logger.info('This is an INFO log with some context');
    logger.info(_event);
    // will output {id: 1, description: 'foo', items: [...]
};

export const handler = middy(lambdaHandler).use(parser(order, envelope));

Alternative solutions

No response

Acknowledgment

• This feature request meets Powertools for AWS Lambda (TypeScript) Tenets
• Should this be considered in other Powertools for AWS Lambda languages? i.e. Python, Java, and .NET

Future readers

Please react with 👍 and your use case to help us understand customer demand.

[dreamorosi]

I would make the middleware accept an object rather than positional arguments, i.e.

type ParserOptions = {
  schema: Foo,
  envelope: Bar
};

[github-actions]

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[dreamorosi]

This is now released under v2.1.0 version!