Watermarks image paths on S3 that come in via an SQS queue.
Install npm install -g node-lambda
locally, you can then adjust the event.json with how you expect your event to
arrive at your Lambda function.
You can test your function by running node-lambda run in your project
directory.
Depending on the amount of time your finished lambda function needs to process your queue items, you can make the following assumptions:
20.000.000 SQS items
128 MB memory
3 seconds execution time
$3.80 / month
200.000.000 SQS items
128 MB memory
3 seconds execution time
$39.80 / month
250.000.000 SQS items
128 MB memory
3 seconds execution time
$49.80 / month
250.000.000 SQS items
512 MB memory
10 seconds execution time
$63.97 / month
Feel free to calculate for your own use case, Matthew D Fuller created a cost calculcator: http://blog.matthewdfuller.com/p/aws-lambda-pricing-calculator.html