Cost Estimation

Note: these estimates are for reference only. Please don’t make any important decisions based on this alone!

There are three components that will cost money:

1. Serving static assets for the website
   • Estimate: $25
2. External API for uploading claims and for uploading images
   • Estimate: $130
3. Batch Transformers
   • Estimate: $450

Total: <$1000 per 1M requests

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To get the cost estimates above, we used AWS on-demand pricing and the following variables:

• Number of total claims submitted. We’ll assume 1M over the lifetime of this deployment.
• Size of each claim (JSON) and associated documents (photo of wage form, etc.). We’ll assume 5MB (0.005GB) total.

Please consider these estimates as just “order-of-magnitude correct”.

Static Assets

Architecture: Browser <- CloudFront CDN <- S3

AWS Pricing:

• S3 storage cost
  • $0.023/GB
  • $0.0000004/request
• S3 -> CDN
  • free
• CDN -> internet
  • $0.085 / GB

Let’s assume an example production build is ~300KB (0.0003GB). So:

• $0 for storage cost
• $0.4 for 1M S3 requests (= 1M page views)
• $25.5 for 1M outbound downloads from the CDN

External API

Architecture: Browser -> API Gateway -> Lambda -> S3

AWS Pricing:

• API Gateway requests
  • $3.50 per 1M 512KB REST requests
• API Gateway request data transfer
  • Free
• API Gateway response data transfer
  • $0.09/GB
• Lambda executions
  • $0.0000002 per request
  • Lambda memory consumption
  • $0.0000002083 per request
• S3 writes
  • $0.000005 / request
  • S3 storage cost $0.023 per GB

That equates to:

• $7 for API Gateway requests
• $1 for data transfer for responses
• $0.2 for Lambda executions
• $0.2 for Lambda memory
• $5 for S3 writes
• $115 for S3 storage

Batch Transformers

Architecture: CRON -> (Lambda <- S3) -> {{state system}}

AWS Pricing:

• Lambda executions
  • $0.0000002 per request
• Lambda memory consumption
  • $0.0000002083 per request
• S3 reads
  • $0.0000004 per request
• Data Transfer S3 -> Internet
  • $0.09 / GB

That equates to:

• $0.2 for Lambda executions
• $0.2 for Lambda memory
• $4 for S3 writes
• $450 for outbound transfer