feat(w3c): add convenience methods to vc and vp (#1477)

Signed-off-by: Timo Glastra <[email protected]>

packages/core/src/modules/vc/data-integrity/models/W3cJsonLdVerifiableCredential.ts

@@ -3,7 +3,13 @@ import type { W3cCredentialOptions } from '../../models/credential/W3cCredential
 
 import { ValidateNested } from 'class-validator'
 
-import { IsInstanceOrArrayOfInstances, SingleOrArray, asArray, mapSingleOrArray } from '../../../../utils'
+import {
+  IsInstanceOrArrayOfInstances,
+  SingleOrArray,
+  asArray,
+  mapSingleOrArray,
+  JsonTransformer,
+} from '../../../../utils'
 import { ClaimFormat } from '../../models/ClaimFormat'
 import { W3cCredential } from '../../models/credential/W3cCredential'
 
@@ -31,10 +37,22 @@ export class W3cJsonLdVerifiableCredential extends W3cCredential {
     return proofArray.map((proof) => proof.type)
   }
 
+  public toJson() {
+    return JsonTransformer.toJSON(this)
+  }
+
   /**
    * The {@link ClaimFormat} of the credential. For JSON-LD credentials this is always `ldp_vc`.
    */
   public get claimFormat(): ClaimFormat.LdpVc {
     return ClaimFormat.LdpVc
   }
+
+  /**
+   * Get the encoded variant of the W3C Verifiable Credential. For JSON-LD credentials this is
+   * a JSON object.
+   */
+  public get encoded() {
+    return this.toJson()
+  }
 }

packages/core/src/modules/vc/data-integrity/models/W3cJsonLdVerifiablePresentation.ts

@@ -1,7 +1,8 @@
 import type { LinkedDataProofOptions } from './LinkedDataProof'
 import type { W3cPresentationOptions } from '../../models/presentation/W3cPresentation'
 
-import { SingleOrArray, IsInstanceOrArrayOfInstances } from '../../../../utils'
+import { SingleOrArray, IsInstanceOrArrayOfInstances, JsonTransformer, asArray } from '../../../../utils'
+import { ClaimFormat } from '../../models'
 import { W3cPresentation } from '../../models/presentation/W3cPresentation'
 
 import { LinkedDataProof, LinkedDataProofTransformer } from './LinkedDataProof'
@@ -21,4 +22,28 @@ export class W3cJsonLdVerifiablePresentation extends W3cPresentation {
   @LinkedDataProofTransformer()
   @IsInstanceOrArrayOfInstances({ classType: LinkedDataProof })
   public proof!: SingleOrArray<LinkedDataProof>
+
+  public get proofTypes(): Array<string> {
+    const proofArray = asArray(this.proof) ?? []
+    return proofArray.map((proof) => proof.type)
+  }
+
+  public toJson() {
+    return JsonTransformer.toJSON(this)
+  }
+
+  /**
+   * The {@link ClaimFormat} of the presentation. For JSON-LD credentials this is always `ldp_vp`.
+   */
+  public get claimFormat(): ClaimFormat.LdpVp {
+    return ClaimFormat.LdpVp
+  }
+
+  /**
+   * Get the encoded variant of the W3C Verifiable Presentation. For JSON-LD presentations this is
+   * a JSON object.
+   */
+  public get encoded() {
+    return this.toJson()
+  }
 }

packages/core/src/modules/vc/jwt-vc/W3cJwtVerifiableCredential.ts

@@ -109,4 +109,12 @@ export class W3cJwtVerifiableCredential {
   public get claimFormat(): ClaimFormat.JwtVc {
     return ClaimFormat.JwtVc
   }
+
+  /**
+   * Get the encoded variant of the W3C Verifiable Credential. For JWT credentials this is
+   * a JWT string.
+   */
+  public get encoded() {
+    return this.serializedJwt
+  }
 }

packages/core/src/modules/vc/jwt-vc/W3cJwtVerifiablePresentation.ts

@@ -2,6 +2,7 @@ import type { W3cPresentation } from '../models'
 
 import { Jwt } from '../../../crypto/jose/jwt/Jwt'
 import { AriesFrameworkError } from '../../../error'
+import { ClaimFormat } from '../models'
 
 import { getPresentationFromJwtPayload } from './presentationTransformer'
 
@@ -78,4 +79,19 @@ export class W3cJwtVerifiablePresentation {
   public get holderId() {
     return this.presentation.holderId
   }
+
+  /**
+   * The {@link ClaimFormat} of the presentation. For JWT presentations this is always `jwt_vp`.
+   */
+  public get claimFormat(): ClaimFormat.JwtVp {
+    return ClaimFormat.JwtVp
+  }
+
+  /**
+   * Get the encoded variant of the W3C Verifiable Presentation. For JWT presentations this is
+   * a JWT string.
+   */
+  public get encoded() {
+    return this.serializedJwt
+  }
 }