AWS Lambda Powertools for .NET¶
AWS Lambda Powertools for .NET (which from here will be referred as Powertools) is a suite of utilities for AWS Lambda functions to ease adopting best practices such as tracing, structured logging, custom metrics, and more. Please note, Powertools is optimized for .NET 6+.
Tip
Powertools is also available for Python, Java, and TypeScript.
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Features¶
Core utilities such as Tracing, Logging, and Metrics will be available across all Lambda Powertools languages. Additional utilities are subjective to each language ecosystem and customer demand.
| Utility | Description |
|---|---|
| Tracing | Decorators and utilities to trace Lambda function handlers, and both synchronous and asynchronous functions |
| Logger | Structured logging made easier, and decorator to enrich structured logging with key Lambda context details |
| Metrics | Custom AWS metrics created asynchronously via CloudWatch Embedded Metric Format (EMF) |
Install¶
Powertools are available as NuGet packages. You can install the packages from NuGet gallery or from Visual Studio editor. Search AWS.Lambda.Powertools* to see various utilities available.
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AWS.Lambda.Powertools.Tracing:
dotnet nuget add AWS.Lambda.Powertools.Tracing -
AWS.Lambda.Powertools.Logging:
dotnet nuget add AWS.Lambda.Powertools.Logging -
AWS.Lambda.Powertools.Metrics:
dotnet nuget add AWS.Lambda.Powertools.Metrics
SAM CLI custom template¶
We have provided you with a custom template for the Serverless Application Model (AWS SAM) command-line interface (CLI). This generates a starter project that allows you to interactively choose the Powertools features that enables you to include in your project.
1 | |
To use the SAM CLI, you need the following tools.
- SAM CLI - Install the SAM CLI
- .NET 6.0 (LTS) - Install .NET 6.0
- Docker - Install Docker community edition
Examples¶
We have provided a few examples that should you how to use the each of the core Powertools features.
Connect¶
- AWS Lambda Powertools on Discord:
#dotnet- Invite link - Email: aws-lambda-powertools-feedback@amazon.com
Tenets¶
These are our core principles to guide our decision making.
- AWS Lambda only. We optimize for AWS Lambda function environments and supported runtimes only. Utilities might work with web frameworks and non-Lambda environments, though they are not officially supported.
- Eases the adoption of best practices. The main priority of the utilities is to facilitate best practices adoption, as defined in the AWS Well-Architected Serverless Lens; all other functionality is optional.
- Keep it lean. Additional dependencies are carefully considered for security and ease of maintenance, and prevent negatively impacting startup time.
- We strive for backwards compatibility. New features and changes should keep backwards compatibility. If a breaking change cannot be avoided, the deprecation and migration process should be clearly defined.
- We work backwards from the community. We aim to strike a balance of what would work best for 80% of customers. Emerging practices are considered and discussed via Requests for Comment (RFCs)
- Idiomatic. Utilities follow programming language idioms and language-specific best practices.