hasSubmittedEvidence

async hasSubmittedEvidence(escrowId: bigint, role: Role): Promise<boolean>

Utility function to check whether buyer, seller, or arbiter has already uploaded their evidence during a dispute.

Useful for disabling the “Submit Evidence” button after submission.

Parameters

• escrowId: bigint – The disputed escrow ID
• role: Role – One of: Role.Buyer, Role.Seller, or Role.Arbiter

Returns

Promise<boolean> – true if evidence was already submitted, false otherwise

import { createPalindromeSDK } from '@/lib/createSDK';
import { Role } from '@palindromecryptoescrow/sdk';

const { sdk } = await connectAndInitSDK();

try {
  const buyerSubmitted = await sdk.hasSubmittedEvidence(42n, Role.Buyer);
  const sellerSubmitted = await sdk.hasSubmittedEvidence(42n, Role.Seller);
  const arbiterSubmitted = await sdk.hasSubmittedEvidence(42n, Role.Arbiter);

  console.log("Evidence status:", {
    buyer: buyerSubmitted ? "Submitted" : "Pending",
    seller: sellerSubmitted ? "Submitted" : "Pending",
    arbiter: arbiterSubmitted ? "Submitted" : "Pending",
  });

  // Example: conditionally show button
  if (!buyerSubmitted) {
    // Show "Submit Evidence" button for buyer
  }

} catch (error) {
  console.error("Failed to check evidence status:", error);
}

Common Use Cases

• Hide/disable submit button after user uploads
• Show checkmark or “Submitted” label
• Display progress indicators in dispute UI
• Prevent double submissions

See also → getDisputeSubmissionStatus() for all-in-one status