Allow GET requests re CORS

[abtestingalpha]

Summary by CodeRabbit

• New Features
  • Introduced CORS support to handle requests from different origins, enhancing compatibility with various client applications.

[coderabbitai]

Walkthrough

The changes introduce a new middleware function to the Express application for handling Cross-Origin Resource Sharing (CORS). This middleware sets the necessary headers for incoming requests and responds with a 200 status for OPTIONS requests. The existing middleware for logging and request routing remains intact, ensuring that the application continues to function as before while incorporating CORS support.

Changes

File Path	Change Summary
packages/rest-api/src/app.ts	Added CORS middleware to handle Access-Control-Allow-* headers and respond to OPTIONS requests. Existing middleware remains unchanged.

Sequence Diagram(s)

sequenceDiagram
    participant Client
    participant CORS Middleware
    participant Logging Middleware
    participant Request Handler

    Client->>CORS Middleware: Send Request
    CORS Middleware-->>Client: Set CORS Headers
    alt OPTIONS Request
        CORS Middleware-->>Client: Respond with 200
    else Other Request
        CORS Middleware->>Logging Middleware: Call next()
        Logging Middleware->>Request Handler: Process Request
        Request Handler-->>Logging Middleware: Send Response
        Logging Middleware-->>Client: Return Response
    end

Loading

Poem

🐇 In the meadow where bunnies play,
CORS has come to save the day!
With headers set and options clear,
Our requests can roam far and near.
So hop along, let’s celebrate,
Middleware magic, oh, isn’t it great! 🌼

---

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 34.22600%. Comparing base (36efe55) to head (4a27a0a).
Report is 3 commits behind head on master.

Additional details and impacted files

@@                 Coverage Diff                 @@
##              master       #3383         +/-   ##
===================================================
+ Coverage   33.20876%   34.22600%   +1.01724%     
===================================================
  Files            544         524         -20     
  Lines          34786       33495       -1291     
  Branches          82          82                 
===================================================
- Hits           11552       11464         -88     
+ Misses         22216       21016       -1200     
+ Partials        1018        1015          -3     

Flag	Coverage Δ
packages	90.44834% <ø> (ø)
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[cloudflare-workers-and-pages]

Deploying sanguine-fe with    Cloudflare Pages

Latest commit:	4a27a0a
Status:	✅  Deploy successful!
Preview URL:	https://57179d01.sanguine-fe.pages.dev
Branch Preview URL:	https://rest-api-cors.sanguine-fe.pages.dev

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[coderabbitai]

Actionable comments posted: 2

📜 Review details

Configuration used: .coderabbit.yaml
Review profile: CHILL

📥 Commits

Reviewing files that changed from the base of the PR and between 1d6280b and 4a27a0a.

📒 Files selected for processing (1)

• packages/rest-api/src/app.ts (1 hunks)