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To send an email via a CloudFlare Worker you will need to call a email provider. AWS Simple Email Service (SES) is a robust transactional email provider that I already use in a number of other projects, and simplifies my billing. However the JavaScript SDK provided by AWS is very large and is not compatible with the CloudFlare Worker runtime. So we will want to roll our own simple API call to the SES.
Ingesting CloudWatch logs cost money ($0.57 per GB log data ingested), so removing log lines that are not useful will save you money. In my C# API project the logs are filled with this Warning:
Like many websites and mobile apps, www.signbsl.com hosts its static media files using S3, which provides a reliable service without managing servers. The bucket currently holds more than 126,000 images and videos. On a self hosted solution to find missing files I would usually use the Apache Access Logs. But with S3 you need to use Server access logging to get this information.
Usually a API Gateway is placed in front of a Lambda to allow HTTP requests to be forwarded to a Lambda function. However even when using the HTTP API this still costs $1 per million invocations. To save costs I have setup the PHP website to call the Lambda function direct. Here is how to call the Lambda function and pass the request parameters through in a similar way to how you would call any other JSON API service.