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issue.ts
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issue.ts
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import moment from 'moment';
import { IVcJwtPayload } from '../types';
import { checkCredential } from '../vc-ld/checkCredential';
const isObject = (data: any) => {
if (Array.isArray(data)) {
return false;
}
if (
(typeof data === 'object' || typeof data === 'function') &&
data !== null
) {
return true;
}
return false;
};
export const issue = async (credentialTemplate: any, signer: any) => {
if (credentialTemplate.issuer === undefined) {
throw new Error('Verifiable Credentials require an "issuer".');
}
if (
credentialTemplate.credentialSubject === undefined ||
credentialTemplate.credentialSubject.id === undefined
) {
throw new Error('Verifiable Credentials require an "subject".');
}
let issuer = isObject(credentialTemplate.issuer)
? credentialTemplate.issuer.id
: credentialTemplate.issuer;
let subject = credentialTemplate.credentialSubject.id;
await checkCredential(credentialTemplate);
const payload: IVcJwtPayload = {
iss: issuer,
sub: subject,
vc: credentialTemplate,
};
if (credentialTemplate.id) {
payload.jti = credentialTemplate.id;
}
if (credentialTemplate.issuanceDate) {
payload.nbf = moment(credentialTemplate.issuanceDate).unix();
}
if (credentialTemplate.expirationDate) {
payload.exp = moment(credentialTemplate.expirationDate).unix();
}
// console.log(JSON.stringify(payload, null, 2))
const header = {};
return signer.sign(payload, header);
};