The SST project provides an environment to build serverless applications using AWS. It is designed to make it easy for developers to build full-stack applications by leveraging a suite of tools and resources that allow for quick deployment and iteration. As maintained by the SST organization, the project is an open-source initiative that has been gaining traction with developers looking for a streamlined approach to serverless application development.
The project's overall state appears to be healthy, with active developments and community engagement. Notable activities include updates to the documentation, feature enhancements, and addressing issues raised by users. It is a project with an eye towards modernizing the software development life cycle through serverless architecture.
Recent activities suggest a focus on expanding the SST's capabilities and ensuring high-quality documentation:
PR #3633: This pull request updated documentation related to importing existing SNS Topics. The clarity of document updates suggests attention to user experience and integration of user feedback into the documentation process.
PR #3630: This pull request highlights an intent to accommodate newer Node.js versions in jobs, facilitating runtime version control and potentially improving application performance.
The team members have been primarily centered around feature updates and improvement of existing functionalities. There is an evident collaborative effort to enhance the SST toolkit, indicated by the joint efforts in PR discussions.
An in-depth analysis was conducted on the following source files:
NextjsSite.ts
: The source code is well-structured and comprehensive, advocating for modularity and clear separation of concerns, as noted in the parameter configurations and setup of Next.js site constructs.
Function.ts
: The code within this file lays out a robust framework for function definition, reflecting an understanding of serverless patterns. The thorough commenting and clear encapsulation of functionalities indicate high code quality.
SsrSite.ts
: This file bears witness to the project's complexities, dealing with multiple considerations for server-side rendering. It also addresses different deployment scenarios, showcasing adaptability.
SsrFunction.ts
: The code here is reflective of quality software engineering practices with a well-articulated API.
functionBinding.ts
: This utility file is direct and effective, though leaving room for additional documentation.
The following papers may provide insights and methodologies that could be applicable to ongoing and future developments of the SST project:
NLP-based Relation Extraction Methods in RE (2401.12075): The methods discussed could enhance SST's capability for extracting and processing user requirements when building serverless applications.
Architecting Data-Intensive Applications (2401.12011): This paper’s concepts could be relevant to optimizing SST for data-intensive scenarios.
Modular Monolith: Is This the Trend in Software Architecture? (2401.11867): The exploration of architecture trends might inform design decisions for SST's core structure.
SyzRetrospector: A Large-Scale Retrospective Study of Syzbot (2401.11642): The retrospective study offers potentially valuable takeaways for SST's testing strategies.
Self-sustaining Software Systems (S4): Towards Improved Interpretability and Adaptation (2401.11370): Concepts for self-sustaining systems could inspire features that make SST applications more resilient and adaptive.
In conclusion, the SST project upholds high standards in code quality and is actively integrating feedback into its development practices. It shows a trajectory that is considerate of modern architecture, data handling, and user experience optimization. Recent papers can offer insights to enhance these aspects further.
The pull request in question is PR #3633: docs: Update to the new way of importing an existing SNS Topic. This pull request involves changes made to the documentation, specifically, updating the approach for importing an existing SNS Topic.
www/docs/advanced/importing-resources.md
diff --git a/www/docs/advanced/importing-resources.md b/www/docs/advanced/importing-resources.md
index 6f7cd09ff5..05f1eaa2ff 100644
--- a/www/docs/advanced/importing-resources.md
+++ b/www/docs/advanced/importing-resources.md
@@ -56,12 +56,17 @@ new Api(stack, "Api", {
### Adding subscribers to an existing SNS Topic
-```js {4}
-import * as sns from "@aws-cdk/aws-sns";
+```js {8-10}
+import * as sns from "aws-cdk-lib/aws-sns";
new Topic(stack, "Topic", {
- snsTopic: sns.Topic.fromTopicArn(stack, "ExistingTopic", topicArn),
- subscribers: ["src/subscriber1.main", "src/subscriber2.main"],
+ subscribers: {
+ subscriber1: "src/subscriber1.main",
+ subscriber2: "src/subscriber2.main",
+ },
+ cdk: {
+ topic: sns.Topic.fromTopicArn(stack, "ExistingTopic", topicArn),
+ },
});
```
Correctness and Clarity: The changes seem to improve the clarity of the documentation. Instead of just passing the array of subscribers, the code proposes a new structure that uses keys for each subscriber and wraps the SNS topic import within a cdk
block. The adjusted example is now more aligned with the new CDK v2
best practices and makes it clearer which portion of the code is CDK-specific and which part belongs to the SST construct.
Consistency: The updated import is consistent with the AWS CDK v2
consolidated package structure. It changes the import source from the deprecated individual package to the new monolithic package.
Best Practices: The update reflects best practices for importing existing resources, encouraging better organization of the CDK elements versus SST constructs. Additionally, naming the subscribers with keys might be useful for readability and manageability.
Documentation Impact: This change directly impacts users who will be referencing the documentation to import existing SNS topics. It aligns the docs with the current version of CDK (v2
), which is essential for ensuring that users are not following outdated practices.
Pull Request Standards: The changeset bot has flagged the PR for not including a changeset, which is necessary for version bumping packages. However, since this PR only changes documentation, the bot's warning can be disregarded.
In conclusion, the code changes in this PR enhance the documentation for importing an existing SNS Topic in SST apps. The adjustments match the aws-cdk-lib
practices introduced in CDK v2
, promoting clearer, more maintainable code. Despite the warning from the changeset bot, the PR addresses documentation, and as such, the lack of a changeset may not be relevant. Overall, the PR is well-constructed and offers positive improvements to the SST documentation.
The pull request in question is PR #3630: Allow setting nodejs version of container image in jobs construct. This pull request updates the Docker images used in jobs and allows the Node.js version to be specified for the container image.
packages/sst/src/constructs/Job.ts
diff --git a/packages/sst/src/constructs/Job.ts b/packages/sst/src/constructs/Job.ts
index 95ccf0d4d8..c936bcba3a 100644
--- a/packages/sst/src/constructs/Job.ts
+++ b/packages/sst/src/constructs/Job.ts
@@ -108,7 +108,7 @@ export interface JobProps {
* })
*```
*/
- runtime?: "nodejs" | "container";
+ runtime?: "nodejs16.x" | "nodejs18.x" | "nodejs20.x" | "container";
/**
* For "nodejs" runtime, point to the entry point and handler function.
* Of the format: `/path/to/file.function`.
@@ -593,11 +593,21 @@ export class Job extends Construct implements SSTConstruct {
const code = AssetCode.fromAsset(result.out);
const codeConfig = code.bind(this);
const project = this.job.node.defaultChild as CfnProject;
+ const dockerImageMap = {
+ arm_64: {
+ "nodejs16.x": "amazon/aws-lambda-nodejs:16.2023.07.13.14",
+ "nodejs18.x": "amazon/aws-lambda-nodejs:18.2023.12.14.13",
+ "nodejs20.x": "amazon/aws-lambda-nodejs:20.2023.12.14.13"
+ },
+ x86_64: {
+ "nodejs16.x": "amazon/aws-lambda-nodejs:16",
+ "nodejs18.x": "amazon/aws-lambda-nodejs:18",
+ "nodejs20.x": "amazon/aws-lambda-nodejs:20"
+ }
+ }
const image = LinuxBuildImage.fromDockerRegistry(
// ARM images can be found here https://hub.docker.com/r/amazon/aws-lambda-nodejs
- architecture === "arm_64"
- ? "amazon/aws-lambda-nodejs:16.2023.07.13.14"
- : "amazon/aws-lambda-nodejs:16"
+ dockerImageMap[architecture || "x86_64"][runtime || "nodejs18.x"]
);
project.environment = {
...project.environment,
Correctness: The change correctly updates the runtime definition to allow for specific Node.js versions (16.x, 18.x, and 20.x) alongside the existing "container" option. This granular control over Node.js versions is important for developers to ensure that their job functions are running the intended version of Node.js.
Code Organization: The author introduced a dockerImageMap
object to map architectures (both arm_64
and x86_64
) to the corresponding Docker images of different Node.js versions. This organization provides a clear and easy way to look up and reference Docker images based on the architecture and Node.js version.
Maintainability: By externalizing the mapping of architectures to Docker image strings, it will be easier to maintain and update the Docker image URIs in the future, if necessary.
Backward Compatibility and Safety: The author has updated the default runtime to be "nodejs18.x" but also raised the point about potentially reverting to Node.js 16 if necessary to avoid breaking changes. This awareness is crucial in maintaining compatibility in a shared ecosystem.
Best Practices: The code follows best practices by providing sensible defaults and only changing out the image if a specific architecture is provided. Furthermore, the optionality in providing the architecture or Node.js version demonstrates thoughtful engineering for varying use cases.
Documentation: Lack of inline documentation for the changes could be improved. Specifically, the significance of choosing a specific Node.js version and its impact should be noted either within the code via comments or in the project's documentation for end-users.
Pull Request Standards: Similar to the previous PR (#3633), the changeset bot flagged the absence of a changeset, highlighting that merging this PR will not cause a version bump. Given that these changes are significant and involve updates to Docker images used in jobs, it might warrant adding a changeset for proper version tracking.
Considerations Moving Forward: It's important to consider whether defaulting to Node.js 18 might break existing deployments that expect Node.js 16, as noted by the PR author. A broader discussion or a more cautious phased-in approach might be necessary.
The code changes in this PR appear to be well-thought-out, contributing positively to the project's flexibility and robustness in handling job constructs with different Node.js versions. There is, however, a potential need for adding a changeset to ensure proper release management, and it would be beneficial to include additional documentation to guide end users through these changes.
The SST project leverages AWS infrastructure to ease the development of modern full-stack applications. The recent activities in the master branch and active branches show a project that is actively maintained and improved upon by its contributors. Below is a detailed analysis of the development team's recent activities, based on the provided commits.
Looking at the patterns of activity:
github-actions[bot]
for version increments indicates an automated CI/CD pipeline, which is a positive aspect of modern software development practices.1527-fix
, auth2
) appear to have been inactive for an extended period. This could signal incomplete features or areas of the code that may no longer be relevant.In conclusion, the SST project is experiencing steady maintenance, regular updates, and improvements. It has an active development community that cares for the project's growth and user satisfaction. Despite some inactive branches, the dominant activities in the master branch reflect a project on a positive trajectory. However, there is room for improvement in testing and review processes to minimize the need for post-merge reversions.