Implement Store Donation Endpoint

[ayshadogo]

Description:
Create endpoint to record on-chain donations in database.

Tasks:

• Create POST /donations endpoint
• Create CreateDonationDto with validation
• Validate transaction hash format
• Check for duplicate transactions
• Verify transaction on Stellar blockchain
• Store donation details
• Update project funds_raised
• Send confirmation to donor

Acceptance Criteria:

• Validates transaction on blockchain
• Prevents duplicate entries
• Updates project total atomically
• Returns 201 with donation details

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[drips-wave]

This issue has been added to the Stellar Wave Program and is worth 200 Points.

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[Codex723]

@Codex723 has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

Hi, I'd like to claim this issue.
Approach:
I'll create a POST /donations endpoint with a CreateDonationDto that validates the transaction hash format (Stellar tx hashes are 64-character hex strings). Before storing, the handler will check for duplicate tx_hash entries in the DB and verify the transaction on the Stellar blockchain via Horizon — confirming the amount, destination, and asset match the referenced project.
If all checks pass, I'll wrap the donation insert and the funds_raised increment on the project in a single DB transaction so the update is atomic. A confirmation will be sent to the donor after successful storage. The endpoint returns 201 with full donation details on success, and appropriate error codes for duplicates, invalid hashes, or failed blockchain verification.
ETA: First draft PR within 24 hours of assignment.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Codex723 to this issue.

[AbdulSnk]

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

Hi, I’d like to take this issue.

I plan to implement a POST /donations endpoint to record on-chain donations in the database.

Approach:

• Create CreateDonationDto with proper validation
• Validate transaction hash format and prevent duplicates
• Verify transactions on the Stellar blockchain
• Store donation details securely
• Return clear success/error responses

ℹ️ Repo Maintainers: To accept this application, review their application or assign @AbdulSnk to this issue.

[drips-wave]

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

🧑‍💻 @AbdulSnk: 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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