@veramo/credential-status
Version:
Veramo plugin for resolving a credential status
43 lines • 1.93 kB
JavaScript
import { extractIssuer, isDefined, resolveDidOrThrow } from '@veramo/utils';
import { Status } from 'credential-status';
/**
* This plugin implements the {@link @veramo/core-types#ICredentialStatusVerifier | ICredentialStatusVerifier}
* interface.
*
* This aggregates some {@link credential-status#StatusMethod | credential status implementations} to provide a second
* layer of validation when verifying Verifiable Credentials.
*
* This is used for the discovery of information about the current status of a verifiable credential, such as whether
* it is suspended or revoked. The precise contents of the credential status information is determined by the specific
* `credentialStatus` type definition.
*
* The results provided by this plugin depend on whether the {@link credential-status#StatusMethod | StatusMethod}
* required by the credential is installed.
*
* @see {@link credential-status#Status}
*
* @beta This API may change without a BREAKING CHANGE notice.
*/
export class CredentialStatusPlugin {
status;
methods;
constructor(registry = {}) {
this.status = new Status(registry);
this.methods = {
checkCredentialStatus: this.checkCredentialStatus.bind(this),
};
}
async checkCredentialStatus(args, context) {
let didDoc = args.didDocumentOverride;
if (!didDoc) {
const issuerDid = extractIssuer(args.credential);
didDoc = await resolveDidOrThrow(issuerDid, context, args.resolutionOptions);
}
const statusCheck = (await this.status.checkStatus(args.credential, didDoc));
if (!isDefined(statusCheck.revoked)) {
throw new Error(`invalid_result: 'revoked' property missing. The Credential Status verification resulted in an ambiguous result: ${JSON.stringify(statusCheck)}`);
}
return statusCheck;
}
}
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