Cost
You are responsible for the cost of the AWS services used while running the Serverless Bot Framework solution, which can vary based on the following factors:
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Number of Amazon API Gateway requests per month
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Number of AWS Lambda invocations per month
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Amazon DynamoDB write/read requests per month—the Serverless Bot Framework solution logs all interactions between the user and the solution's microservices to DynamoDB. It also logs the bot's context to maintain user's session information between microservices.
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Number of characters processed by Amazon Polly per month: the solution uses Amazon Polly to turn text into lifelike speech to allow the serverless bot to talk to users.
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Number of active users per month authenticated with Amazon Cognito.
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Number of text requests to Amazon Lex per month.
This solution is based entirely on serverless AWS services. Therefore, when the solution is not in use, you only pay for data storage.
We recommend creating a
budget
through
AWS Cost Explorer
Example cost table
The following table provides an example monthly cost breakdown for deploying this solution with the default parameters in the US East (N. Virginia) Region (excludes free tier).
Table 1: 10 monthly active users, with 50,000 API requests per month with Amazon Lex
| AWS Service | Dimensions | Cost |
|---|---|---|
| Amazon API Gateway | 50,000 requests / month | $0.17 |
| AWS Lambda |
500,000 invocations / month (avg 300 ms duration and 128 MB memory) |
$0.41 |
| Amazon Lex |
50,000 text requests /month x ($0.00075 / request) |
$37.50 |
| Amazon S3 | Storage (0.5 GB) and 50,000 get requests / month | $0.03 |
| Amazon CloudFront |
Regional data transfer out to internet: first 10 TB Regional data transfer out to origin: all data transfer HTTPS Requests: 50,000 requests / month X ($0.01/10,000 requests) |
$0.085 $0.20 $0.05 |
| Amazon Polly | Average 10 characters / request: 10 x 50,000 requests / month x ($4.0 / 1 million characters) | $2.00 |
| Amazon Cognito | 10 user x ($0.0055 / monthly active users (MAUs)) | $0.055 |
| TOTAL: $40.50 / month |
