Implement Contract Invoke Function in Frontend for Soroban Transactions

[0xdevcollins]

📌 Description

Currently, the frontend is not integrated with the Soroban smart contract for invoking project-related transactions (e.g., create project, vote, fund, release milestone, refund). This issue aims to implement a frontend utility function that allows secure and seamless invocation of the smart contract using Stellar's Soroban SDK.

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🎯 Goals

• ✅ Develop a reusable contract invoke function in the frontend.
• ✅ Integrate Soroban SDK for contract interactions.
• ✅ Can handle transactions like create_project, vote_project, fund_project, etc.
• ✅ Ensure error handling & proper transaction signing.
• ✅ Store the transaction hash in PostgreSQL after execution.

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💡 Proposed Solution

1. Create a utility function (invokeSorobanContract.ts) inside lib/.
2. Use Stellar SDK to sign and submit transactions.