refactor: Improve separation of concerns in APIService

[tataaaaaa021]

Description

This pull request improves the separation of concerns in the APIService struct by extracting various initialization and management tasks into separate functions and packages. The main changes include:

• Extracting the database, API server, and metrics server initialization into separate functions.
• Moving the router initialization and route definitions into a separate routes package.
• Simplifying the APIService struct to focus on the high-level API service management, rather than handling the low-level details.
• Improving error handling by using errors.Join to accumulate multiple errors during the shutdown process.

These changes make the code more modular, easier to maintain, and better aligned with the principles of separation of concerns.

Tests

No new tests have been added as part of this pull request, as the changes are focused on refactoring and improving the existing code structure. The existing test suite should continue to cover the functionality of the APIService.

Additional context

The APIService is a core component of the indexer application, responsible for handling the HTTP API and metrics endpoints. Improving the separation of concerns in this component will make it easier to understand, extend, and maintain the overall application.

Summary by CodeRabbit

• Refactor
  • Enhanced the structure and naming conventions of the API service to improve clarity and organization.
  • Streamlined initialization and routing setup for the API service.

[coderabbitai[bot]]

Walkthrough

The recent updates involve a comprehensive restructuring of the API service, focusing on enhancing clarity, efficiency, and organization. Key modifications include the redefinition of the APIService struct, method renaming for better clarity, and a more streamlined initialization and configuration process. These changes aim to improve the maintainability and scalability of the service.

Changes

File Path	Change Summary
indexer/api/api.go	Restructured APIService struct, renamed variables and methods, updated method signatures, refined initialization process, streamlined router setup, and directly applied middleware functions.

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Recent Review Details

Configuration used: CodeRabbit UI

Commits

Files that changed from the base of the PR and between 0913776869f6cb2c1218497463d7377cf4de16de and e9928f7e8822364dbbcf6741fa2a43550ffa1af1.

Files selected for processing (1)

• indexer/api/api.go (6 hunks)

Additional comments not posted (9)

indexer/api/api.go (9)

42-53: The restructuring of the APIService struct with dedicated fields for database and server management aligns well with the goal of improving modularity and separation of concerns.

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56-66: The NewAPIService function effectively initializes the service and employs a robust error handling strategy by using errors.Join to manage multiple errors during initialization.

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70-84: The initFromConfig function is well-organized and clearly separates the initialization tasks for the database, metrics server, and API server, enhancing clarity and maintainability.

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102-109: > :memo: NOTE

This review was outside the diff hunks and was mapped to the diff hunk with the greatest overlap. Original lines [89-111]

The Stop method effectively accumulates errors during the shutdown process using errors.Join, aligning with the PR's objectives to enhance error handling.

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126-132: The initDB function provides a clear and effective setup for the database connection, with appropriate error handling.

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138-151: The initRouter function effectively separates the routing logic into a dedicated function, enhancing modularity and clarity.

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116-157: > :memo: NOTE

This review was outside the diff hunks and was mapped to the diff hunk with the greatest overlap. Original lines [154-162]

The startAPIServer function is well-structured and effectively manages the setup and start of the API server, with clear logging and error handling.

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165-170: > :memo: NOTE

This review was outside the diff hunks and was mapped to the diff hunk with the greatest overlap. Original lines [164-172]

The startMetricsServer function effectively manages the setup and start of the metrics server, aligning with the improvements in server management and error handling.

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179-183: The chiMetricsMiddleware function provides a concise and effective way to integrate metrics recording into the HTTP handling process.

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[github-actions[bot]]

This PR is stale because it has been open 14 days with no activity. Remove stale label or comment or this will be closed in 5 days.

[github-actions[bot]]

This PR is stale because it has been open 14 days with no activity. Remove stale label or comment or this will be closed in 5 days.

[tynes]

cc @hamdiallam do you think this PR is worth review + getting merged?

[github-actions[bot]]

This PR is stale because it has been open 14 days with no activity. Remove stale label or comment or this will be closed in 5 days.