Validate that billingCountry matches a standard ISO 3166-1 alpha-2 code

[codeZe-us]

The billingCountry field in companyProfiles is a free-form varchar. Without validation, invalid values (e.g., "United States", "usa") can be stored, breaking integrations with payment processors and compliance checks that expect strict ISO 3166-1 alpha-2 codes (e.g., "US", "GB", "NG").

Implementation Guidelines

Key Files: src/server/validations/ (whichever Zod schema handles company/profile updates).

• Install or import a list of valid ISO 3166-1 alpha-2 codes (use the i18n-iso-countries package or a static constant array).
• In the Zod validation schema for billingCountry, add:

  billingCountry: z.string().length(2).toUpperCase().refine(isValidIsoAlpha2, {
    message: "billingCountry must be a valid ISO 3166-1 alpha-2 code",
  })

• Apply the same validation to registeredCountry if it exists in the same schema.

Expectations

What done looks like: POSTing "billingCountry": "United States" returns a 400 validation error. POSTing "billingCountry": "US" passes. Existing tests for company profile creation/update are updated or added.

Discord for any questions: codeze_us

[blessme247]

@blessme247 has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

I would like to work on this issue

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[drips-wave]

Congratulations, @blessme247! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on March 30, 2026.

🧑‍💻 @blessme247: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

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[blessme247]

Hi @codeZe-us could you help me close this issue since You merged it. I see I haven't been assigned a point for it yet

[drips-wave]

This issue has been marked as completed by a Drips Wave moderator for @blessme247 as part of the Stellar Wave Program's 3rd Wave 🥳

Moderator's reason: [Auto-assessed] The contributor successfully addressed the issue in PR #373, which was merged by the maintainer. The PR implements the requested ISO 3166-1 alpha-2 validation using the i18n-iso-countries package and updates the database schema accordingly.

😎 @blessme247: You earned 200 Points for completing this issue! After the current Wave ends, you'll be eligible for a percentage of the Wave's reward pool based on the percentage of total points you've earned. Learn more here.

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ℹ️ Note: This issue was marked complete via moderation. Points were issued even though the GitHub issue remains open.