Lambda with API Gateway #61
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WalkthroughThe update introduces a new setup for deploying a Lambda function via API Gateway using AWS SAM, encapsulated in a project structure that now ignores a Changes
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| // Create a response | ||
| responseBody, err := json.Marshal(HealthResponse{Status: "healthy"}) | ||
| if err != nil { | ||
| log.Printf("Error marshalling JSON response: %v", err) |
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[misspell] reported by reviewdog 🐶
"marshalling" is a misspelling of "marshaling"
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Review Status
Actionable comments generated: 3
Configuration used: CodeRabbit UI
Files ignored due to path filters (1)
cloudformation/api-gateway-with-lambda/template.ymlis excluded by:!**/*.yml
Files selected for processing (3)
- cloudformation/api-gateway-with-lambda/.gitignore (1 hunks)
- cloudformation/api-gateway-with-lambda/Makefile (1 hunks)
- cloudformation/api-gateway-with-lambda/main.go (1 hunks)
Files skipped from review due to trivial changes (1)
- cloudformation/api-gateway-with-lambda/.gitignore
Additional comments: 4
cloudformation/api-gateway-with-lambda/main.go (2)
- 29-29: The
Content-Typeheader is correctly set toapplication/json. This is good practice for API responses.- 36-36: The Lambda handler is correctly started in the main function. This is standard practice for AWS Lambda functions written in Go.
cloudformation/api-gateway-with-lambda/Makefile (2)
- 16-16: The dependency check for
samis a good practice, ensuring the necessary tool is available before proceeding with deployment tasks.- 20-20: The build target correctly sets
GOOSandGOARCHfor the Lambda execution environment. This ensures the binary is compatible with AWS Lambda's environment.
| responseBody, err := json.Marshal(HealthResponse{Status: "healthy"}) | ||
| if err != nil { | ||
| log.Printf("Error marshalling JSON response: %v", err) | ||
| return events.APIGatewayProxyResponse{StatusCode: 500}, err |
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Error handling in the Lambda function handler logs the error but does not obscure the error details from the client in the response. Consider returning a generic error message to the client to avoid potential information leakage.
- return events.APIGatewayProxyResponse{StatusCode: 500}, err
+ return events.APIGatewayProxyResponse{StatusCode: 500, Body: `{"error":"Internal Server Error"}`}, nilCommittable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| responseBody, err := json.Marshal(HealthResponse{Status: "healthy"}) | |
| if err != nil { | |
| log.Printf("Error marshalling JSON response: %v", err) | |
| return events.APIGatewayProxyResponse{StatusCode: 500}, err | |
| responseBody, err := json.Marshal(HealthResponse{Status: "healthy"}) | |
| if err != nil { | |
| log.Printf("Error marshalling JSON response: %v", err) | |
| return events.APIGatewayProxyResponse{StatusCode: 500, Body: `{"error":"Internal Server Error"}`}, nil |
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| deploy: dependency_check build ## Deploy CloudFormation Template | ||
| sam deploy --stack-name $(AWS_STACK_NAME) --template-file $(TEMPLATE_FILE) \ | ||
| --capabilities CAPABILITY_IAM --resolve-s3 --region ap-northeast-1 || { echo "SAM deployment failed"; exit 1; } |
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The deploy target uses sam deploy with appropriate flags. However, consider parameterizing the --region flag to enhance flexibility and maintainability.
- --capabilities CAPABILITY_IAM --resolve-s3 --region ap-northeast-1 || { echo "SAM deployment failed"; exit 1; }
+ --capabilities CAPABILITY_IAM --resolve-s3 --region $(AWS_REGION) || { echo "SAM deployment failed"; exit 1; }Add AWS_REGION = ap-northeast-1 to the variable declarations.
Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| --capabilities CAPABILITY_IAM --resolve-s3 --region ap-northeast-1 || { echo "SAM deployment failed"; exit 1; } | |
| --capabilities CAPABILITY_IAM --resolve-s3 --region $(AWS_REGION) || { echo "SAM deployment failed"; exit 1; } |
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| test-deploy: build ## Deploy CloudFormation Template for test | ||
| samlocal deploy --stack-name $(AWS_STACK_NAME) --template-file $(TEMPLATE_FILE) \ | ||
| --capabilities CAPABILITY_IAM --resolve-s3 --region ap-northeast-1 || { echo "SAM deployment failed"; exit 1; } |
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The test-deploy target uses samlocal which is not a standard AWS SAM CLI command. This might be a typo or a custom tool not mentioned in the context. Verify the command or correct it to sam.
- samlocal deploy --stack-name $(AWS_STACK_NAME) --template-file $(TEMPLATE_FILE) \
+ sam deploy --stack-name $(AWS_STACK_NAME) --template-file $(TEMPLATE_FILE) \Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| --capabilities CAPABILITY_IAM --resolve-s3 --region ap-northeast-1 || { echo "SAM deployment failed"; exit 1; } | |
| sam deploy --stack-name $(AWS_STACK_NAME) --template-file $(TEMPLATE_FILE) \ | |
| --capabilities CAPABILITY_IAM --resolve-s3 --region ap-northeast-1 || { echo "SAM deployment failed"; exit 1; } |
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HOTTEST report
Reported by hottest |
Code Metrics Report
Details | | main (fadaeee) | #61 (b23e044) | +/- |
|---------------------|----------------|---------------|-------|
+ | Coverage | 22.4% | 24.7% | +2.3% |
| Files | 52 | 53 | +1 |
| Lines | 1829 | 3603 | +1774 |
+ | Covered | 409 | 890 | +481 |
- | Test Execution Time | 3s | 4s | +1s |Code coverage of files in pull request scope (0.0% → 0.0%)
Reported by octocov |
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Review Status
Actionable comments generated: 4
Configuration used: CodeRabbit UI
Files ignored due to path filters (2)
cloudformation/api-gateway-with-lambda/lambda-with-apigateway.pngis excluded by:!**/*.pngcloudformation/lambda-batch/template.ymlis excluded by:!**/*.yml
Files selected for processing (4)
- README.md (1 hunks)
- cloudformation/api-gateway-with-lambda/README.md (1 hunks)
- cloudformation/api-gateway-with-lambda/lambda-with-apigateway.drawio (1 hunks)
- cloudformation/api-gateway-with-lambda/main.go (1 hunks)
Files skipped from review as they are similar to previous changes (1)
- cloudformation/api-gateway-with-lambda/main.go
Additional comments: 3
cloudformation/api-gateway-with-lambda/README.md (1)
- 4-4: Ensure the description of Lambda and API Gateway's combined infrastructure is accurate and aligns with AWS's official documentation for clarity and correctness.
README.md (1)
- 49-49: The addition of "Lambda with API Gateway" to the template list is clear and directly references the newly introduced setup. Ensure the link to the README.md file is functional and provides comprehensive documentation on deploying and using the template.
cloudformation/api-gateway-with-lambda/lambda-with-apigateway.drawio (1)
- 1-53: Ensure the diagram accurately represents the architecture of the Lambda with API Gateway setup, including all relevant AWS services and their interactions. Verify that labels and connections are clear and correctly depict the flow between components.
| - Simplified Serverless Architecture: Combining API Gateway with Lambda allows for the creation of a serverless architecture, eliminating issues with server management and scaling. | ||
| - Cost Efficiency: Being billed only for the resources you use, costs can scale with traffic, reducing wasteful spending. | ||
| - Seamless Integration: API Gateway provides seamless integration with Lambda, allowing you to define API endpoints and route requests to Lambda functions. | ||
| - Facilitates the implementation of microservices architecture, allowing deployment of independent Lambda functions for each functionality. |
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The characteristics section is clear and informative. However, consider adding specific examples or use cases to illustrate these benefits further.
| - Long Processing Time: Lambda functions are limited by execution time. If long processing is required, Lambda might not be suitable. Alternative methods should be explored for long-running processes. | ||
| - Heavy Data Processing: Lambda functions have resource limits. For tasks requiring heavy data processing or significant memory, other services or architectures might be more suitable. | ||
| - Always Active Services: Lambda is event-driven and goes to sleep when there are no requests. For services that need to be always active or for background processing, Lambda might not be appropriate. |
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The limitations section accurately highlights potential drawbacks. It might be beneficial to link to AWS documentation for alternative solutions or workarounds.
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| ### How to deploy | ||
| > [!NOTE] | ||
| > Before running `make deploy`, ensure you have configured AWS credentials and set the correct region. Otherwise, you use single sign-on (SSO). |
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The deployment instruction note is helpful. Ensure that instructions for configuring AWS credentials and setting the correct region are easily accessible or provide a link to relevant AWS documentation.
| ``` | ||
| https://<api-id>.execute-api.<region>.amazonaws.com/<stage> | ||
| ``` | ||
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| - `<api-id>`: The API Gateway ID. | ||
| - `<region>`: The AWS region where the API Gateway is deployed. | ||
| - `<stage>`: The stage name of the API Gateway. |
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The endpoint base URL syntax section is clear. Consider adding an example to demonstrate how to use this syntax in a real-world scenario.
Summary by CodeRabbit
.gitignoreto exclude the/bootstrapdirectory.