Lambda code examples for the SDK for Rust

Overview

Shows how to use the AWS SDK for Rust to work with AWS Lambda.

For an example of using Rust in a lambda function, see this example.

Lambda allows you to run code without provisioning or managing servers.

⚠ Important

• Running this code might result in charges to your AWS account. For more details, see AWS Pricing and Free Tier.
• Running the tests might result in charges to your AWS account.
• We recommend that you grant your code least privilege. At most, grant only the minimum permissions required to perform the task. For more information, see Grant least privilege.
• This code is not tested in every AWS Region. For more information, see AWS Regional Services.

Code examples

Prerequisites

For prerequisites, see the README in the rustv1 folder.

Additionally, to compile Lambda functions written in the Rust programming language, use Cargo Lambda.

Basics

Code examples that show you how to perform the essential operations within a service.

• Learn the basics

Single actions

Code excerpts that show you how to call individual service functions.

• CreateFunction
• DeleteFunction
• GetFunction
• Invoke
• ListFunctions
• UpdateFunctionCode
• UpdateFunctionConfiguration

Run the examples

Instructions

Before running the scenario, compile the Lambda functions.

cd calculator
cargo lambda build --output-format Zip
cd -

Then, run the complete scenario. Set RUST_LOG to capture appropriate tracing events during the execution of the scenario.

RUST_LOG=scenario=debug,lambda_code_examples=debug cargo run --bin scenario

Other single action examples write directly to stdout, and can be executed with cargo run --bin [binary]

Learn the basics

This example shows you how to do the following:

• Create an IAM role and Lambda function, then upload handler code.
• Invoke the function with a single parameter and get results.
• Update the function code and configure with an environment variable.
• Invoke the function with new parameters and get results. Display the returned execution log.
• List the functions for your account, then clean up resources.

Tests

⚠ Running tests might result in charges to your AWS account.

To find instructions for running these tests, see the README in the rustv1 folder.

Additional resources

• Lambda Developer Guide
• Lambda API Reference
• SDK for Rust Lambda reference

• Cargo Lambda

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SPDX-License-Identifier: Apache-2.0