Data API for Amazon Aurora Serverless vith AWS SDK for Java - Part Data API quotas, limitations and pricing

Amazon Aurora Serverless v2 Data API: Limitations, Quotas, and Pricing

This article details the limitations, quotas, and pricing associated with the Amazon Aurora Serverless v2 Data API.

Data API Limitations:

The Data API has several key limitations:

• Writer Instances Only: Queries can only be executed on writer instances within a DB cluster, although these instances accept both read and write operations.
• Aurora Global Databases: While enabling the Data API on primary and secondary DB clusters in Aurora global databases is possible, secondary clusters lack writer instances until promotion to primary status. Data API requires a writer instance, meaning read and write queries fail on secondary clusters until promotion.
• Unsupported Instance Classes: The Data API is not compatible with T DB instance classes.
• Data Type Support: Not all data types are supported. Refer to the comparison of RDS Data API with Serverless v2, provisioned, and Aurora Serverless v1 for a complete list of supported types.
• PostgreSQL Version 14 : For Aurora PostgreSQL version 14 and later, only scram-sha-256 is supported for password encryption.
• Response Size Limits: The maximum response size is 1 MiB. Larger responses result in call termination.
• Row Size Limits: Each row in a result set is limited to 64 KB.

Data API Quotas:

The following service quotas apply to the Data API (none are adjustable):

Quota Name	Description	Value
Data API HTTP request body size	Maximum size of the HTTP request body	4 Megabytes
Data API maximum concurrent cluster-secret pairs	Maximum concurrent Data API requests for unique Aurora Serverless v1 cluster/secret pairs	30
Data API maximum result set size	Maximum size of the database result set returned by the Data API	1 Megabyte
Data API maximum size of JSON response string	Maximum size of the simplified JSON response string	10 Megabytes
Data API maximum requests	Maximum number of Data API requests. For Aurora Serverless v2, this is tied to max_connections, which is based on maximum ACUs (with a cap of 2000 for 0.5 ACU minimum on PostgreSQL).	See Aurora Serverless v2 documentation for details

Data API Pricing:

Data API usage is pay-per-use, with no minimum fees or upfront costs. Charges are based on API and data requests. Data payloads are metered at 32 KB increments per request (sent or received). A 35 KB payload, for instance, incurs a charge for two API requests.

A free tier of one million API requests per month (aggregated across regions) is available for the first year. Additional charges may apply for AWS Secrets Manager and, if enabled, AWS CloudTrail. Regional pricing variations exist; consult the Data API cost documentation for specifics.

US-East-1 Pricing (at time of writing):

Number of Requests (per month)	Price (per million)
First 1 Billion requests	.35
Above 1 Billion requests	.20

Conclusion:

This overview summarizes the limitations, quotas, and pricing model of the Amazon Aurora Serverless v2 Data API. Remember to consult the official AWS documentation for the most up-to-date information.

Sources: (Note: The original source links were not functional, so I have omitted them here. Please refer to the official AWS documentation for accurate and current information.)

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