S3FilesConfigProperty Struct
Setting controls how your function accesses data from an Amazon S3 file system.
Example
ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_lambda as lambda } from 'aws-cdk-lib';
const s3FilesConfigProperty: lambda.CfnFunction.S3FilesConfigProperty = {
directS3Read: 'directS3Read',
};
Properties
Specifies if a function reads from the file system for the lowest latency, or through Amazon S3 Files feature "direct Amazon S3 bucket reads" for the highest throughput.
notes
Valid values:
AUTO(default) – Direct reads are active for functions you configure with 512 MB or more of memory.ENABLED– Enforces all reads are directly from the Amazon S3 bucket, regardless of available memory (less than 512 MB).DISABLED– Routes all reads through the file system, regardless of memory configuration.
To use direct reads, you must grant the execution role the s3:GetObject and s3:GetObjectVersion permissions. If a direct read fails, Lambda automatically falls back to reading through the file system.