Get Claim

Fetch a claim from an ONCHAINID identity by claim ID. Covers computing the identifier and reading the full claim payload from the identity contract.

onchainid.getClaim(GetClaim)

Fetch a claim from an ONCHAINID identity by claimId. This is a read-only call to the identity contract.

GetClaim Type Parameters

Parameter	Type	Required	Description
subjectIdentity	string	Required	The ONCHAINID identity contract address to read from.
claimId	string	Required	The claim identifier, computed as keccak256(abi.encode(issuer, topic)).

Returns

Field	Type	Description
claim	Claim	The full claim payload read from the identity contract.

Usage

TypeScript

import 'dotenv/config';
import { RWA, Chain, ClaimTopics, type SDKInit, type GetIdentity, type GetClaim } from '@peaq-network/rwa';
import { JsonRpcProvider, AbiCoder, keccak256 } from "ethers";

async function main() {
    // 0. Create rwa_sdk instance and get provider
    const provider = new JsonRpcProvider(process.env.HTTPS_BASE_URL);
    const init: SDKInit = { chainId: Chain.AGUNG, provider: provider };
    const rwa_sdk = new RWA(init);

    // 1. Resolve the identity for an EOA (or use a known identity address)
    const alice = process.env.ALICE_PUBLIC_ADDRESS!;
    const identityRes = await rwa_sdk.onchainid.getIdentity({ subject: alice } as GetIdentity);
    if (identityRes.status !== 'found') throw new Error('Identity not found');
    const identity = identityRes.identity;

    // 2. Compute claimId = keccak256(abi.encode(issuer, topic))
    const issuerContract = process.env.CLAIM_ISSUER_CONTRACT_ADDRESS!;
    const topic = ClaimTopics.CT_KYC_APPROVED;
    const abiCoder = new AbiCoder();
    const claimId = keccak256(abiCoder.encode(["address", "uint256"], [issuerContract, topic]));

    // 3. Fetch claim
    const result = await rwa_sdk.onchainid.getClaim({
      subjectIdentity: identity,
      claimId
    } as GetClaim);
    console.log("Result", result);
}

main().catch((err) => {
  console.error(err);
  process.exit(1);
});

JavaScript

import 'dotenv/config';
import { RWA, Chain, ClaimTopics } from "@peaq-network/rwa";
import { JsonRpcProvider, AbiCoder, keccak256 } from "ethers";

async function main() {
    // 0. Create rwa_sdk instance and get provider
    const provider = new JsonRpcProvider(process.env.HTTPS_BASE_URL);
    const rwa_sdk = new RWA({ chainId: Chain.AGUNG, provider: provider });

    // 1. Resolve the identity for an EOA (or use a known identity address)
    const alice = process.env.ALICE_PUBLIC_ADDRESS;
    const identityRes = await rwa_sdk.onchainid.getIdentity({ subject: alice });
    if (identityRes.status !== 'found') throw new Error('Identity not found');
    const identity = identityRes.identity;

    // 2. Compute claimId = keccak256(abi.encode(issuer, topic))
    const issuerContract = process.env.CLAIM_ISSUER_CONTRACT_ADDRESS;
    const topic = ClaimTopics.CT_KYC_APPROVED;
    const abiCoder = new AbiCoder();
    const claimId = keccak256(abiCoder.encode(["address", "uint256"], [issuerContract, topic]));

    // 3. Fetch claim
    const result = await rwa_sdk.onchainid.getClaim({
      subjectIdentity: identity,
      claimId: claimId
    });
    console.log("Result", result);
}

main().catch((err) => {
  console.error(err);
  process.exit(1);
});

Example outputs

Result {
  claim: {
    topic: 666,
    scheme: 1,
    issuer: '0x187EB39e1aF4B9a79936635dBa52984af98464a9',
    signature: '0x4bab329329ea682e4ac675d9ebab2b8ec597124b98b5085a4e8f83104ce064d4728771567752a75db8ad75552579f0f805913f1f756947f25a8e85d67ce3055e1b',
    data: '0x252ec8044814d556905cc1587f4a375a2acfe3f84a17d7d104accd32ee25b3b6',
    uri: 'https://example.com/kyc'
  }
}