# AWS::S3ObjectLambda Construct Library
<!--BEGIN STABILITY BANNER-->---
> The APIs of higher level constructs in this module are experimental and under active development.
> They are subject to non-backward compatible changes or removal in any future version. These are
> not subject to the [Semantic Versioning](https://semver.org/) model and breaking changes will be
> announced in the release notes. This means that while you may use them, you may need to update
> your source code when upgrading to a newer version of this package.
---
<!--END STABILITY BANNER-->
This construct library allows you to define S3 object lambda access points.
```python
import aws_cdk.aws_lambda as lambda_
import aws_cdk.aws_s3 as s3
import aws_cdk.aws_s3objectlambda_alpha as s3objectlambda
import aws_cdk as cdk
stack = cdk.Stack()
bucket = s3.Bucket(stack, "MyBucket")
handler = lambda_.Function(stack, "MyFunction",
runtime=lambda_.Runtime.NODEJS_LATEST,
handler="index.handler",
code=lambda_.Code.from_asset("lambda.zip")
)
s3objectlambda.AccessPoint(stack, "MyObjectLambda",
bucket=bucket,
handler=handler,
access_point_name="my-access-point",
payload={
"prop": "value"
}
)
```
## Handling range and part number requests
Lambdas are currently limited to only transforming `GetObject` requests. However, they can additionally support `GetObject-Range` and `GetObject-PartNumber` requests, which needs to be specified in the access point configuration:
```python
import aws_cdk.aws_lambda as lambda_
import aws_cdk.aws_s3 as s3
import aws_cdk.aws_s3objectlambda_alpha as s3objectlambda
import aws_cdk as cdk
stack = cdk.Stack()
bucket = s3.Bucket(stack, "MyBucket")
handler = lambda_.Function(stack, "MyFunction",
runtime=lambda_.Runtime.NODEJS_LATEST,
handler="index.handler",
code=lambda_.Code.from_asset("lambda.zip")
)
s3objectlambda.AccessPoint(stack, "MyObjectLambda",
bucket=bucket,
handler=handler,
access_point_name="my-access-point",
supports_get_object_range=True,
supports_get_object_part_number=True
)
```
## Pass additional data to Lambda function
You can specify an additional object that provides supplemental data to the Lambda function used to transform objects. The data is delivered as a JSON payload to the Lambda:
```python
import aws_cdk.aws_lambda as lambda_
import aws_cdk.aws_s3 as s3
import aws_cdk.aws_s3objectlambda_alpha as s3objectlambda
import aws_cdk as cdk
stack = cdk.Stack()
bucket = s3.Bucket(stack, "MyBucket")
handler = lambda_.Function(stack, "MyFunction",
runtime=lambda_.Runtime.NODEJS_LATEST,
handler="index.handler",
code=lambda_.Code.from_asset("lambda.zip")
)
s3objectlambda.AccessPoint(stack, "MyObjectLambda",
bucket=bucket,
handler=handler,
access_point_name="my-access-point",
payload={
"prop": "value"
}
)
```
## Accessing the S3 AccessPoint ARN
If you need access to the s3 accesspoint, you can get its ARN like so:
```python
import aws_cdk.aws_s3objectlambda_alpha as s3objectlambda
# access_point: s3objectlambda.AccessPoint
s3_access_point_arn = access_point.s3_access_point_arn
```
This is only supported for AccessPoints created in the stack - currently you're unable to get the S3 AccessPoint ARN for imported AccessPoints. To do that you'd have to know the S3 bucket name beforehand.
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"description": "# AWS::S3ObjectLambda Construct Library\n\n<!--BEGIN STABILITY BANNER-->---\n\n\n\n\n> The APIs of higher level constructs in this module are experimental and under active development.\n> They are subject to non-backward compatible changes or removal in any future version. These are\n> not subject to the [Semantic Versioning](https://semver.org/) model and breaking changes will be\n> announced in the release notes. This means that while you may use them, you may need to update\n> your source code when upgrading to a newer version of this package.\n\n---\n<!--END STABILITY BANNER-->\n\nThis construct library allows you to define S3 object lambda access points.\n\n```python\nimport aws_cdk.aws_lambda as lambda_\nimport aws_cdk.aws_s3 as s3\nimport aws_cdk.aws_s3objectlambda_alpha as s3objectlambda\nimport aws_cdk as cdk\n\nstack = cdk.Stack()\nbucket = s3.Bucket(stack, \"MyBucket\")\nhandler = lambda_.Function(stack, \"MyFunction\",\n runtime=lambda_.Runtime.NODEJS_LATEST,\n handler=\"index.handler\",\n code=lambda_.Code.from_asset(\"lambda.zip\")\n)\ns3objectlambda.AccessPoint(stack, \"MyObjectLambda\",\n bucket=bucket,\n handler=handler,\n access_point_name=\"my-access-point\",\n payload={\n \"prop\": \"value\"\n }\n)\n```\n\n## Handling range and part number requests\n\nLambdas are currently limited to only transforming `GetObject` requests. However, they can additionally support `GetObject-Range` and `GetObject-PartNumber` requests, which needs to be specified in the access point configuration:\n\n```python\nimport aws_cdk.aws_lambda as lambda_\nimport aws_cdk.aws_s3 as s3\nimport aws_cdk.aws_s3objectlambda_alpha as s3objectlambda\nimport aws_cdk as cdk\n\nstack = cdk.Stack()\nbucket = s3.Bucket(stack, \"MyBucket\")\nhandler = lambda_.Function(stack, \"MyFunction\",\n runtime=lambda_.Runtime.NODEJS_LATEST,\n handler=\"index.handler\",\n code=lambda_.Code.from_asset(\"lambda.zip\")\n)\ns3objectlambda.AccessPoint(stack, \"MyObjectLambda\",\n bucket=bucket,\n handler=handler,\n access_point_name=\"my-access-point\",\n supports_get_object_range=True,\n supports_get_object_part_number=True\n)\n```\n\n## Pass additional data to Lambda function\n\nYou can specify an additional object that provides supplemental data to the Lambda function used to transform objects. The data is delivered as a JSON payload to the Lambda:\n\n```python\nimport aws_cdk.aws_lambda as lambda_\nimport aws_cdk.aws_s3 as s3\nimport aws_cdk.aws_s3objectlambda_alpha as s3objectlambda\nimport aws_cdk as cdk\n\nstack = cdk.Stack()\nbucket = s3.Bucket(stack, \"MyBucket\")\nhandler = lambda_.Function(stack, \"MyFunction\",\n runtime=lambda_.Runtime.NODEJS_LATEST,\n handler=\"index.handler\",\n code=lambda_.Code.from_asset(\"lambda.zip\")\n)\ns3objectlambda.AccessPoint(stack, \"MyObjectLambda\",\n bucket=bucket,\n handler=handler,\n access_point_name=\"my-access-point\",\n payload={\n \"prop\": \"value\"\n }\n)\n```\n\n## Accessing the S3 AccessPoint ARN\n\nIf you need access to the s3 accesspoint, you can get its ARN like so:\n\n```python\nimport aws_cdk.aws_s3objectlambda_alpha as s3objectlambda\n\n# access_point: s3objectlambda.AccessPoint\ns3_access_point_arn = access_point.s3_access_point_arn\n```\n\nThis is only supported for AccessPoints created in the stack - currently you're unable to get the S3 AccessPoint ARN for imported AccessPoints. To do that you'd have to know the S3 bucket name beforehand.\n",
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