validateDelegation static method

Future<List<Object>> validateDelegation(String pubKey, String privKey, String delegation)

Implementation

static Future<List<Object>> validateDelegation(
    String pubKey, String privKey, String delegation) async {
  try {
    // Generating appIdentity using the public and private key
    var keyPairValues = [pubKey, privKey];
    Ed25519KeyIdentity newIde =
        Ed25519KeyIdentity.fromParsedJson(keyPairValues);

    // Creating delegationIdentity using the delegationString and the appIdentity.
    String decodedDelegation = Uri.decodeComponent(delegation);
    DelegationChain delegationChain =
        DelegationChain.fromJSON(jsonDecode(decodedDelegation));
    DelegationIdentity delegationIdentity =
        DelegationIdentity(newIde, delegationChain);

    // Creating HttpAgent using the delegation Identity
    validationAgent = HttpAgent(
        options: HttpAgentOptions(
      identity: delegationIdentity,
      host: 'icp-api.io',
    ));

    // Creating a new CanisterActor using the new Agent
    CanisterActor newActor = CanisterActor(
        ActorConfig(
          canisterId: Principal.fromText('cni7b-uaaaa-aaaag-qc6ra-cai'),
          agent: validationAgent,
        ),
        NewFieldsMethod.idl);

    // Calling whoAmI to confirm API call
    await newActor.getFunc(NewFieldsMethod.whoAmI)?.call([]);

    return [true, validationAgent!, delegationIdentity];
  } catch (e) {
    return [false, e];
  }
}