Fix/reason onchain (#276)

* fixes according to spec

* 1.21.0

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@0xpolygonid/js-sdk",
-  "version": "1.20.3",
+  "version": "1.21.0",
   "description": "SDK to work with Polygon ID",
   "main": "dist/node/cjs/index.js",
   "module": "dist/node/esm/index.js",

src/iden3comm/handlers/contract-request.ts

@@ -192,7 +192,6 @@ export class ContractRequestHandler
       to: request.from,
       body: {
         transaction_data: request.body.transaction_data,
-        reason: request.body.reason,
         scope: []
       }
     };

src/iden3comm/types/protocol/contract-request.ts

@@ -1,6 +1,6 @@
 import { PROTOCOL_MESSAGE_TYPE } from '../../constants';
 import { BasicMessage } from '../packer';
-import { ZeroKnowledgeProofRequest, ZeroKnowledgeProofResponse } from './auth';
+import { DIDDocument, ZeroKnowledgeProofRequest, ZeroKnowledgeProofResponse } from './auth';
 
 /** ContractInvokeRequest represents structure of contract invoke request object */
 export type ContractInvokeRequest = BasicMessage & {
@@ -10,9 +10,10 @@ export type ContractInvokeRequest = BasicMessage & {
 
 /** ContractInvokeRequestBody represents structure of contract invoke request body object */
 export type ContractInvokeRequestBody = {
-  reason: string;
+  reason?: string;
   transaction_data: ContractInvokeTransactionData;
   scope: Array<ZeroKnowledgeProofRequest>;
+  did_doc?: DIDDocument;
 };
 
 /** ContractInvokeResponse represents structure of contract invoke response object */
@@ -25,7 +26,7 @@ export type ContractInvokeResponse = BasicMessage & {
 export type ContractInvokeResponseBody = {
   scope: Array<OnChainZeroKnowledgeProofResponse>;
   transaction_data: ContractInvokeTransactionData;
-  reason: string;
+  did_doc?: DIDDocument;
 };
 
 /** OnChainZeroKnowledgeProofResponse represents structure of onchain zero knowledge proof response */