APIドキュメント

// npm install @prima-evidence/sdknpm install @prima-evidence/sdk
importort { PrimaClient, PrimaApiError } fromm "@prima-evidence/sdk"rima-evidence/sdk";
importort { createHash } fromm "crypto"ypto";
importort { readFile } fromm "fs/promises"/promises";

constst prima = new PrimaClient(process.env.PRIMA_API_KEY!);

// Hash a fileHash a file
constst buffer = awaitit readFile("./contract.pdf"contract.pdf");
constst hash = createHash("sha256"a256").update(buffer).digest("hex"x");

// Create proof and wait for blockchain confirmationCreate proof and wait for blockchain confirmation
constst { proofId, creditsRemaining } = awaitit prima.createProof(hash, {
  title: "Contract v2.1"ntract v2.1",
});
console.log(`Proof created: ${proofId} (${creditsRemaining} credits left)`oof created: ${proofId} (${creditsRemaining} credits left)`);

constst confirmed = awaitit prima.waitForConfirmation(proofId);
console.log(`Arweave TX: ${confirmed.arweaveTransactionId}`weave TX: ${confirmed.arweaveTransactionId}`);

// Batch create (up to 100 proofs atomically)Batch create (up to 100 proofs atomically)
constst batch = awaitit prima.createBatch([
  { hash: "a".repeat(64, metadata: { filename: "file1.pdf"le1.pdf" } },
  { hash: "b".repeat(64, metadata: { filename: "file2.pdf"le2.pdf" } },
]);
console.log(`Batch: ${batch.count} proofs, ${batch.creditsUsed} credits used`tch: ${batch.count} proofs, ${batch.creditsUsed} credits used`);

// List proofs with paginationList proofs with pagination
constst proofs = awaitit prima.listProofs({ page: 1limit: 10 status: "confirmed"nfirmed" });
console.log(`${proofs.pagination.total} total proofs`proofs.pagination.total} total proofs`);

// Error handlingError handling
try {
  awaitit prima.createProof(hash);
} catchch (error) {
  if(error instanceof PrimaApiError) {
    console.error(`${error.status}: ${error.message}`error.status}: ${error.message}`);
    if(error.status === 402) console.error("Buy more credits"y more credits");
    if(error.status === 409) console.error("Hash already registered"sh already registered");
  }
}