feat: add api to invalid request in diff b/w server & req time

[AkashKumar7902]

This pull request updates the go-jwt service to improve time validation functionality and Docker build configuration. The main changes include switching to the amd64 version of the go_freeze_time binary, introducing a new endpoint to check time synchronization between client and server, and updating the Go build command to include the faketime tag.

Docker build configuration updates:

• Switched the Dockerfile to use the go_freeze_time_amd64 binary instead of go_freeze_time_arm64, and updated all related commands and paths accordingly.
• Changed the Go build step in the Dockerfile to use the -tags=faketime flag, enabling faketime support in the built binary.

New time synchronization endpoint:

• Added a new CheckTimeHandler function in main.go that validates if a client-provided Unix timestamp is within one second of the server time, logging the time difference and returning appropriate HTTP status codes.
• Registered the new /check-time endpoint in the Gin router to expose the time check functionality.

Codebase maintenance:

• Imported the strconv package in main.go to support parsing string timestamps in the new handler.

[Copilot]

Pull Request Overview

This PR adds a new API endpoint to validate client-server time synchronization by comparing a client-provided timestamp with server time. The implementation rejects requests when the time difference exceeds 1 second and includes Docker configuration updates for AMD64 architecture.

• Adds /check-time endpoint that validates timestamp synchronization between client and server
• Updates Docker configuration from ARM64 to AMD64 architecture with faketime build tags
• Implements time difference validation with 1-second tolerance threshold

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
go-jwt/main.go	Adds CheckTimeHandler function and registers new /check-time endpoint
go-jwt/Dockerfile	Updates architecture from ARM64 to AMD64 and adds faketime build tag

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[Copilot]

The log.Printf call has mismatched format specifiers and arguments. There's a trailing newline on line 171 and the format string expects one argument but the call structure is malformed.

Suggested change

	log.Printf(
	"Server Time: %s",
	serverTime.String(),
	)
	log.Printf("Server Time: %s", serverTime.String())

[Copilot]

The 1-second sleep artificially delays all valid time check requests, which will significantly impact API response times and throughput. Consider removing this sleep or making it configurable for testing purposes only.

Suggested change

time.Sleep(1 * time.Second)

[Copilot]

When rejecting requests due to time difference, the response body is empty. Consider providing an error message explaining why the request was rejected, similar to other error cases in this handler.

Suggested change

	c.Status(http.StatusBadRequest)
	c.JSON(http.StatusBadRequest, gin.H{"error": "Time difference between client and server is too large (must be <= 1 second)"})

[khareyash05]

@AkashKumar7902 is this PR being maintained?