public APIGatewayProxyResponseEvent handleRequest()

in java-app-backend/BackendFunction/src/main/java/com/webapp/function/ImageUploadHandler.java [37:76]
32 lines of code
3 McCabe index (conditional complexity)

    public APIGatewayProxyResponseEvent handleRequest(APIGatewayProxyRequestEvent input, Context context) {
        APIGatewayProxyResponseEvent apiGatewayProxyResponseEvent = new APIGatewayProxyResponseEvent();
        Map<String, String> headers = new HashMap<>();
        headers.put("Access-Control-Allow-Origin", "*");
        apiGatewayProxyResponseEvent.withHeaders(headers);

        String contentType = input.getQueryStringParameters().getOrDefault("content-type", "");
        String fileExtension = input.getQueryStringParameters().getOrDefault("file-extension", "");

        if (contentType.isEmpty() || fileExtension.isEmpty()) {
            return apiGatewayProxyResponseEvent
                    .withStatusCode(400)
                    .withBody("{\n" +
                            "  \"message\": \"Both content-type and file-extension need to passed as query param!\" \n" +
                            "}");
        }

        String fileName = UUID.randomUUID() + fileExtension;
        String imagePath = "index/static/" + fileName;
        String personName = input.getQueryStringParameters().getOrDefault("person-name", "");
        LOG.debug("File path to be saved {} in bucket {}", imagePath, S3_BUCKET);
        LOG.debug("Received metadata {}", personName);

        HashMap<String, String> metaData = new HashMap<>();
        metaData.put("fullname", personName);

        PresignedPutObjectRequest requestObject = client.presignPutObject(req ->
                req.putObjectRequest(obj ->
                        obj.metadata(metaData)
                                .bucket(S3_BUCKET)
                                .key(imagePath)
                                .contentType(contentType)).signatureDuration(Duration.ofSeconds(60)));

        metricsLogger().putMetric("RemainingTime", context.getRemainingTimeInMillis(), Unit.MILLISECONDS);

        LOG.debug("Generated pre signed url {}", requestObject.url());
        LOG.debug("Generated pre signed details meta {}", requestObject.signedHeaders());

        return response(apiGatewayProxyResponseEvent, fileName, requestObject.url());
    }