feat: added image endpoint

[RahulLanjewar93]

Summary by CodeRabbit

• New Feature: Introduced separate endpoints for rendering PDF and image files. The /pdf endpoint renders HTML pages to PDF, while the /image endpoint renders HTML pages to images.
• Refactor: Updated the existing / route to use a new handleRender function that encapsulates common rendering logic. This change enhances code maintainability and readability.
• New Feature: Added a renderImage function in the render.js module to support rendering an HTML page to an image.

[hariprasadiit]

@CodiumAI-Agent /review

[CodiumAI-Agent]

PR Analysis

• 🎯 Main theme: Addition of image rendering endpoint
• 📝 PR summary: This PR introduces a new endpoint for rendering images. It refactors the existing render function into two separate functions for rendering PDFs and images respectively. The new image endpoint and the refactored PDF endpoint are then added to the express app.
• 📌 Type of PR: Enhancement
• 🧪 Relevant tests added: No
• ⏱️ Estimated effort to review [1-5]: 3
  The PR is of moderate size and complexity. It introduces a new feature and refactors existing code. The code is well-structured and doesn't seem to have any major issues, but a thorough review is still necessary to ensure everything works as expected.
• 🔒 Security concerns: No
  The PR does not seem to introduce any obvious security concerns. The inputs to the rendering functions are taken from the request body and do not seem to be used in a way that could lead to security issues such as SQL injection or XSS.

PR Feedback

• 💡 General suggestions: The PR is generally well-structured and the code is clean. However, it would be beneficial to add error handling for the case when the rendering fails. Additionally, it would be good to add tests for the new functionality to ensure it works as expected.

• 🤖 Code feedback:

  • relevant file: src/app.ts
    suggestion: Consider adding error handling for the case when the rendering fails. This could be done by wrapping the rendering calls in a try-catch block and sending an appropriate response in the catch block. [important]
    relevant line: const image = await renderImage(html, options);

  • relevant file: src/render.ts
    suggestion: Consider adding a default value for the image options in the RenderOptions type. This would ensure that the renderImage function always has a valid options object to work with. [medium]
    relevant line: image: puppeteer.ScreenshotOptions;

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[hariprasadiit]

@CodiumAI-Agent /improve --extended

[coderabbitai]

Walkthrough

This update introduces separate handlers for rendering PDF and image files, enhancing the codebase's functionality. It modifies import statements, adds new routes, and updates existing ones. The changes are well-contained and do not introduce any obvious defects.

Changes

File	Summary
src/app.ts	Import statement updated to include renderPdf and renderImage. Introduced handleRender function for common rendering logic. Added /pdf and /image endpoints. Updated / endpoint to use renderPdf.
src/render.ts	Introduced renderImage function for rendering HTML page to an image. Updated defaultOptions object to include image property. Renamed render function to renderPdf and updated its implementation.

🐇💻

"In the land of code, where logic intertwines,

New paths emerge, as clear as signs.

Render now in image or in script,

With these changes, we're well-equipped!" 🎉🚀

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[RahulLanjewar93]

@CodiumAI-Agent /improve --extended

[coderabbitai]

Review Status

Actionable comments generated: 0

Commits

Files that changed from the base of the PR and between 077666d and 0d7480d.

Files selected for processing (2)

• src/app.ts (2 hunks)
• src/render.ts (2 hunks)

Files skipped from review due to trivial changes (1)

• src/render.ts

Additional comments (Suppressed): 4

src/app.ts (4)

• 5-5: The renderPdf and renderImage functions are imported from the ./render.js module. Ensure that these functions are correctly exported in the render.js file.

• 44-54: The handleRender function is a higher-order function that takes a rendering function (renderFunc) and a content type string (contentType). It returns an Express middleware function that handles the request to render HTML into a specified format (PDF or image). This function is well-written and reusable, which improves code maintainability.

• 56-57: Two new routes /pdf and /image are added for rendering PDFs and images respectively. Make sure these new routes do not conflict with any existing routes in your application.

• 60-69: The existing route handler for / has been updated to use renderPdf. Ensure all clients using this endpoint are expecting a PDF response.

[coderabbitai]

Review Status

Actionable comments generated: 0

Commits

Files that changed from the base of the PR and between 0d7480d and 8eb8015.

Files selected for processing (1)

• src/app.ts (2 hunks)

Additional comments (Suppressed): 3

src/app.ts (3)

• 44-58: The new handleRender function is a good abstraction that reduces code duplication for handling different types of rendering tasks. However, the / endpoint is now also using this handler with renderPdf as the rendering function. This changes the behavior of the root endpoint from rendering HTML to PDF. Please verify if this change is intended and if it might impact any existing clients or services that are using this endpoint.

• 56-57: New endpoints /image and /pdf have been added for rendering images and PDFs respectively. Ensure that these new routes do not conflict with any existing routes in your application. Also, consider adding input validation middleware to these endpoints to validate the incoming request payload before passing it to the handleRender function.

• 45-53: The error handling in the handleRender function is well implemented. It catches any errors thrown during the rendering process and passes them to the next middleware, which should be an error handling middleware based on Express.js conventions. This is a good practice as it centralizes error handling logic and makes the code easier to maintain.