refactor: change hardcoded URLs to constants

Signed-off-by: Karim <karim@animo.id>

packages/core/src/modules/dids/domain/keyDidDocument.ts

@@ -1,6 +1,8 @@
 import type { VerificationMethod } from './verificationMethod/VerificationMethod'
 
 import { KeyType, Key } from '../../../crypto'
+import { ED25519_SUITE_CONTEXT_URL_2018 } from '../../../crypto/signature-suites/ed25519/constants'
+import { SECURITY_CONTEXT_BBS_URL, SECURITY_X25519_CONTEXT_URL } from '../../vc/constants'
 
 import { DidDocumentBuilder } from './DidDocumentBuilder'
 import { getBls12381g1VerificationMethod } from './key-type/bls12381g1'
@@ -31,7 +33,7 @@ function getBls12381g1DidDoc(did: string, key: Key) {
     key,
     verificationMethod,
   })
-    .addContext('https://w3id.org/security/bbs/v1')
+    .addContext(SECURITY_CONTEXT_BBS_URL)
     .build()
 }
 
@@ -49,7 +51,7 @@ function getBls12381g1g2DidDoc(did: string, key: Key) {
       .addCapabilityInvocation(verificationMethod.id)
   }
 
-  return didDocumentBuilder.addContext('https://w3id.org/security/bbs/v1').build()
+  return didDocumentBuilder.addContext(SECURITY_CONTEXT_BBS_URL).build()
 }
 
 function getEd25519DidDoc(did: string, key: Key) {
@@ -66,8 +68,8 @@ function getEd25519DidDoc(did: string, key: Key) {
   const didDocBuilder = getSignatureKeyBase({ did, key, verificationMethod })
 
   didDocBuilder
-    .addContext('https://w3id.org/security/suites/ed25519-2018/v1')
-    .addContext('https://w3id.org/security/suites/x25519-2019/v1')
+    .addContext(ED25519_SUITE_CONTEXT_URL_2018)
+    .addContext(SECURITY_X25519_CONTEXT_URL)
     .addKeyAgreement(x25519VerificationMethod)
 
   return didDocBuilder.build()
@@ -78,7 +80,7 @@ function getX25519DidDoc(did: string, key: Key) {
 
   const document = new DidDocumentBuilder(did)
     .addKeyAgreement(verificationMethod)
-    .addContext('https://w3id.org/security/suites/x25519-2019/v1')
+    .addContext(SECURITY_X25519_CONTEXT_URL)
     .build()
 
   return document
@@ -92,7 +94,7 @@ function getBls12381g2DidDoc(did: string, key: Key) {
     key,
     verificationMethod,
   })
-    .addContext('https://w3id.org/security/bbs/v1')
+    .addContext(SECURITY_CONTEXT_BBS_URL)
     .build()
 }