public APIGatewayV2HTTPResponse handleRequest()

in software/products/src/main/java/software/amazonaws/example/product/entrypoints/ApiGatewayPutProductRequestHandler.java [37:92]
49 lines of code
7 McCabe index (conditional complexity)

    public APIGatewayV2HTTPResponse handleRequest(APIGatewayV2HTTPEvent event, Context context) {
        logger.info("Event body: " + event.getBody());

        String id = event.getPathParameters().get("id");
        if (id == null) {
            logger.warn("Missing 'id' parameter in path");
            return APIGatewayV2HTTPResponse.builder()
                    .withStatusCode(400)
                    .withHeaders(Map.of(CONTENT_TYPE, "application/json"))
                    .withBody("{ \"message\": \"Missing 'id' parameter in path\" }")
                    .build();
        }

        if (event.getBody() == null || event.getBody().isEmpty()) {
            return APIGatewayV2HTTPResponse.builder()
                    .withStatusCode(400)
                    .withBody("{\"message\": \"Empty request body\"}")
                    .build();
        }

        Product product = null;
        try {
            product = objectMapper.readValue(event.getBody(), Product.class);
        } catch (JsonProcessingException e) {
            logger.error(e.getMessage());
            return APIGatewayV2HTTPResponse.builder()
                    .withBody("{\"message\": \"Failed to parse product from request body\"}")
                    .withStatusCode(400)
                    .build();
        }

        if (!id.equals(product.getId())) {
            logger.error("Product ID in path ({}) does not match product ID in body ({})", id, product.getId());
            return APIGatewayV2HTTPResponse.builder()
                    .withStatusCode(400)
                    .withBody("{\"message\": \"Product ID in path does not match product ID in body\"}")
                    .build();
        }

        logger.info("Parsed: " + product);

        try {
            productStore.putProduct(product);
        } catch (Exception e) {
            logger.error(e.getMessage());
            return APIGatewayV2HTTPResponse.builder()
                    .withStatusCode(500)
                    .build();
        }

        return APIGatewayV2HTTPResponse.builder()
                .withStatusCode(201)
                .withHeaders(Map.of(CONTENT_TYPE, "application/json"))
                .withBody("{\"message\": \"Product created\"}")
                .build();
    }