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4, due to the comprehensive changes across multiple files, including significant logic adjustments in strategy handling, logging, and server configuration. The introduction of new features and the switch to a different logging mechanism increase the complexity of the review. Additionally, the modifications in error handling and strategy shutdown procedures require careful consideration to ensure reliability and robustness.
🧪 Relevant tests
No
🔍 Possible issues
Possible Bug: In server/src/modules/strategy/strategy.service.ts, the retry mechanism in error handling could potentially lead to infinite retries if the error persists. This could cause the system to hang or consume excessive resources.
Performance Concern: The use of synchronous await inside loops, for example in cancelAllStrategyOrders and manageMarketMakingOrdersWithLayers, could lead to performance bottlenecks. Asynchronous batch processing or parallel execution strategies might be more efficient.
🔒 Security concerns
No
Code feedback:
relevant file
server/src/modules/logger/logger.service.ts
suggestion
Consider adding a file rotation mechanism or log cleanup strategy to prevent the log files from growing indefinitely, especially for long-running applications. This can be achieved by integrating winston-daily-rotate-file transport or implementing a custom cleanup mechanism. [important]
For production readiness, ensure that the CORS configuration is updated to restrict origins to known and trusted sources instead of allowing all origins. This is crucial for preventing unwanted cross-origin requests. [important]
Implement a maximum retry limit for error handling in methods like watchSymbols and manageMarketMakingOrdersWithLayers to prevent infinite loops in case of persistent errors. This could be done by adding a retry counter and a condition to break out of the loop after reaching the limit. [important]
Validate the POSTGRES_SSL environment variable to ensure it contains a valid boolean string ('true' or 'false'). Incorrect values could lead to unexpected behavior. Consider adding a utility function for boolean environment variables parsing. [medium]
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Improve security and reliability by using a configuration service for environment variables.
Consider using a more secure method for configuring SSL in production environments. Using environment variables directly can be prone to errors and might not be secure. A better approach would be to use a configuration service or module that validates and sanitizes all environment variables before they are used in the application.
Implement log file rotation to manage disk space and log file sizes.
Implement a mechanism to handle log file rotation to prevent log files from growing indefinitely. This can be achieved by using the winston-daily-rotate-file transport instead of the basic File transport. This will help in managing disk space more effectively and ensure that the log files are easier to manage and review.
Implement an exponential backoff strategy for retries to improve performance and reliability.
Using a fixed delay for retry mechanisms (setTimeout(resolve, 2000)) can lead to suboptimal performance under varying network conditions or load. Implementing an exponential backoff strategy for retries can be more effective, as it adapts to the situation by gradually increasing the delay between retries, reducing the load on the server and increasing the chance of recovery in case of temporary issues.
-await new Promise((resolve) => setTimeout(resolve, 2000)); // Wait for 2 seconds before retrying or moving on+await this.exponentialBackoffRetry(exchange, symbol);
Add logic to handle scenarios where the price source is outside the specified ceiling and floor prices.
The current implementation does not handle the scenario where the price source is outside the specified ceiling and floor prices. It's crucial to add logic to handle this scenario to prevent placing orders that do not align with the strategy's constraints. This could involve logging a warning or error and skipping the order placement for that cycle.
-// Fetch the current market price based on the specified price source type+if (priceSource > ceilingPrice || priceSource < floorPrice) {+ this.logger.warn(`Price source ${priceSource} is outside the specified range (Floor: ${floorPrice}, Ceiling: ${ceilingPrice}). Skipping order placement.`);+ return;+}
Security
Enhance security by restricting CORS to specific origins.
Restricting CORS to allow all origins ('*') can expose the service to unnecessary security risks. It's recommended to specify a list of allowed origins or to configure CORS dynamically based on the request. This can prevent unwanted cross-origin requests and enhance the security of the WebSocket service.
cors: {
- origin: '*', // Allow all origins, Temporary to be changed and restricted.+ origin: ['https://example.com', 'https://anotherdomain.com'], // Specify allowed origins
},
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Be specific, clear, and concise in the instructions. With extra instructions, you are the prompter. Specify relevant aspects that you want the model to focus on.
Examples for extra instructions:
[pr_code_suggestions] # /improve #
extra_instructions="""
Emphasize the following aspects:
- Does the code logic cover relevant edge cases?
- Is the code logic clear and easy to understand?
- Is the code logic efficient?
...
"""
Use triple quotes to write multi-line instructions. Use bullet points to make the instructions more readable.
A note on code suggestions quality
While the current AI for code is getting better and better (GPT-4), it's not flawless. Not all the suggestions will be perfect, and a user should not accept all of them automatically.
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With large PRs, best quality will be obtained by using 'improve --extended' mode.
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Set a default value for ssl connection option based on the environment variable.
Consider setting ssl to false by default if the POSTGRES_SSL environment variable is not set. This ensures that your application can still connect to the database in environments where SSL is not required or not supported, without requiring explicit configuration.
Ensure the logs directory exists before writing logs.
Implement a mechanism to ensure that the logs directory exists before attempting to write logs to it. This can prevent runtime errors when the specified directory does not exist.
Implement exponential backoff for retrying operations after an error.
Instead of using a fixed delay for retrying operations after an error, consider implementing an exponential backoff strategy. This approach can help to reduce the load on the server and improve the chances of recovery in case of temporary issues.
-await new Promise((resolve) => setTimeout(resolve, 2000)); // Wait for 2 seconds before retrying or moving on+await new Promise((resolve) => setTimeout(resolve, Math.pow(2, retryAttempt) * 1000)); // Exponential backoff
Security
Restrict CORS origins to specific domains for enhanced security.
Replace the wildcard CORS origin with specific origins to enhance security. Allowing all origins ('*') can expose your service to cross-site request forgery (CSRF) attacks.
-origin: '*', // Allow all origins, Temporary to be changed and restricted.+origin: ['http://example.com', 'https://anotherdomain.com'], // Specify allowed origins
Maintainability
Use descriptive variable names for better code readability.
Use a more descriptive variable name than priceSource for the variable that holds the price used to calculate buy and sell prices. This will improve code readability and maintainability.
Overview:
The improve tool scans the PR code changes, and automatically generates suggestions for improving the PR code. The tool can be triggered automatically every time a new PR is opened, or can be invoked manually by commenting on a PR.
When commenting, to edit configurations related to the improve tool (pr_code_suggestions section), use the following template:
meaning the improve tool will run automatically on every PR, with summarization enabled. Delete this line to disable the tool from running automatically.
Utilizing extra instructions
Extra instructions are very important for the improve tool, since they enable to guide the model to suggestions that are more relevant to the specific needs of the project.
Be specific, clear, and concise in the instructions. With extra instructions, you are the prompter. Specify relevant aspects that you want the model to focus on.
Examples for extra instructions:
[pr_code_suggestions] # /improve #
extra_instructions="""
Emphasize the following aspects:
- Does the code logic cover relevant edge cases?
- Is the code logic clear and easy to understand?
- Is the code logic efficient?
...
"""
Use triple quotes to write multi-line instructions. Use bullet points to make the instructions more readable.
A note on code suggestions quality
While the current AI for code is getting better and better (GPT-4), it's not flawless. Not all the suggestions will be perfect, and a user should not accept all of them automatically.
Suggestions are not meant to be simplistic. Instead, they aim to give deep feedback and raise questions, ideas and thoughts to the user, who can then use his judgment, experience, and understanding of the code base.
Recommended to use the 'extra_instructions' field to guide the model to suggestions that are more relevant to the specific needs of the project, or use the custom suggestions 💎 tool
With large PRs, best quality will be obtained by using 'improve --extended' mode.
More PR-Agent commands
To invoke the PR-Agent, add a comment using one of the following commands:
/review: Request a review of your Pull Request.
/describe: Update the PR title and description based on the contents of the PR.
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User description
Strategy improvement requested as improvements by CHUNKEE
Type
enhancement, bug_fix
Description
winstonfor logging, improving log management.ceilingPriceandfloorPricein strategy DTO to manage order placement boundaries.yarn, enhancing project documentation.package.jsonto simplify project setup and management.Changes walkthrough
app.module.ts
Add SSL Support for PostgreSQL Connectionserver/src/app.module.ts
variable
POSTGRES_SSL.logger.service.ts
Switch Logger to Use Winstonserver/src/modules/logger/logger.service.ts
winstoninstead of native filesystem operations.
winstonto log both to console and file with differentlevels.
marketdata.gateway.ts
Modify WebSocket CORS Settingsserver/src/modules/marketdata/marketdata.gateway.ts
strategy.dto.ts
Add Ceiling and Floor Price Handling to Strategy DTOserver/src/modules/strategy/strategy.dto.ts
ceilingPriceandfloorPriceproperties to strategy DTO forhandling order placement boundaries.
strategy.service.ts
Improve Strategy Shutdown and Error Handlingserver/src/modules/strategy/strategy.service.ts
execution.
ceiling and floor prices instead of shutting down.
package.json
Add Root Directory Package.jsonpackage.json
package.jsonfor managing both frontend andserver with scripts for convenience.
README.md
Merge Server README to Root and Update InstructionsREADME.md
yarninstead ofnpm.