What is the difference between createOffer() and offerCredential()

[oadamovskyi]

Hi, I am curious about how can I use createOffer(). I was trying to offer credential and give possibility to multiple holder to accept, I mean when you use offerCredential() then connecetionId there is as required field, but it seems that it dircetly offers to specified Holder, but my idea is to createOffer() and wait till some of the Holders come up. As a reference I've been looking for Trinsic and there Holder, as mobile app, has abbility accept or decline after QR is scanned and it looks for me that connection have been built in the moment when QR is scanned, but I still cannot reach that point. It seemes I missed something in documentation about implementation such thing, so I`d appreciate if you provide docs to read or explanation

[TimoGlastra]

When you create an offer it is not tied to a specific connection. You can then use agent.oob.createLegacyConnectionlessInvitation or agent.oob.createInvitation to include the message and send it out of band.

However, AFJ doesn't support using the same offer multiple times. The offer contains a nonce which shouldn't be reused I think ("In cryptography, a nonce is an arbitrary number that can be used just once in a cryptographic communication").

[oadamovskyi]

I have not tried connectionless invitations
logsCredOfferIssue.txt

[TimoGlastra]

I have not tried connectionless invitations

The example you posted above sets:

 handshake: false

Which means it will create a connectionless invitation

[TimoGlastra]

The issue is with the usage of creating connectionless out of band invitations as mentioend in this issue: #1250

Can you try with hte createLegacyConnectionLessInvitation instead?

ERROR: Error handling message with type https://didcomm.org/issue-credential/1.0/request-credential {
  "message": {
    "@type": "https://didcomm.org/issue-credential/1.0/request-credential",
    "@id": "0a4f8891-841e-4867-a50b-ba63d185529f",
    "requests~attach": [
      {
        "@id": "libindy-cred-request-0",
        "mime-type": "application/json",
        "data": {
          "base64": "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"
        }
      }
    ],
    "~thread": {
      "thid": "67b0b8e5-fbcb-4b98-bab9-4ee26727efe6"
    },
    "~service": {
      "recipientKeys": [
        "HAb37LGye7YPqnnC5jtRc7P5j1hFgQqYiGSvZmH8PW1f"
      ],
      "routingKeys": [],
      "serviceEndpoint": "http://localhost:8003"
    },
    "~transport": {
      "return_route": "all"
    }
  },
  "error": {
    "name": "AriesFrameworkError",
    "message": "Previously sent message ~service recipientKeys does not include current received message recipient key",
    "stack": "AriesFrameworkError: Previously sent message ~service recipientKeys does not include current received message recipient key\n    at ConnectionService.assertConnectionOrServiceDecorator (/Users/oadamovskyi/Documents/Projects/agent-js/node_modules/@aries-framework/core/src/modules/connections/services/ConnectionService.ts:481:17)\n    at V1CredentialProtocol.processRequest (/Users/oadamovskyi/Documents/Projects/agent-js/node_modules/@aries-framework/core/src/modules/credentials/protocol/v1/V1CredentialProtocol.ts:769:23)\n    at async V1RequestCredentialHandler.handle (/Users/oadamovskyi/Documents/Projects/agent-js/node_modules/@aries-framework/core/src/modules/credentials/protocol/v1/handlers/V1RequestCredentialHandler.ts:18:30)\n    at async Dispatcher.dispatch (/Users/oadamovskyi/Documents/Projects/agent-js/node_modules/@aries-framework/core/src/agent/Dispatcher.ts:55:25)\n    at async MessageReceiver.receiveEncryptedMessage (/Users/oadamovskyi/Documents/Projects/agent-js/node_modules/@aries-framework/core/src/agent/MessageReceiver.ts:158:5)\n    at async MessageReceiver.receiveMessage (/Users/oadamovskyi/Documents/Projects/agent-js/node_modules/@aries-framework/core/src/agent/MessageReceiver.ts:86:9)\n    at async /Users/oadamovskyi/Documents/Projects/agent-js/node_modules/@aries-framework/node/src/transport/HttpInboundTransport.ts:46:9"
  },
  "senderKey": "z6Mkvcr5haXQyf2rxHctmJrGTCw5Yay76J5uQHMrQ3F9Jio3",
  "recipientKey": "z6Mkm56pYM6rDu1VJZkUAmDoNtzQRcgwZquL6tpEfWZmTw9f"
}

[oadamovskyi]

issuer1.agent.oob.createLegacyConnectionlessInvitation({
                        recordId: offer.credentialRecord.id,
                        domain: "https://google.com",
                        message: offer.message
                        
                    }).then(res => {
                        
                        
                        
                        holder1.agent.receiveMessage(res.message).then(msg => {
                            console.log('receivedMessage',JSON.stringify(msg,null,2));
                            
                        })
                        
                        
                    })

DEBUG: Agent received message
AriesFrameworkError: Unable to parse incoming message: unrecognized format
    at MessageReceiver.receiveMessage (/Users/oadamovskyi/Documents/Projects/agent-js/node_modules/@aries-framework/core/src/agent/MessageReceiver.ts:90:15)
    at async Agent.receiveMessage (/Users/oadamovskyi/Documents/Projects/agent-js/node_modules/@aries-framework/core/src/agent/BaseAgent.ts:191:12) {
  [cause]: undefined
}

[TimoGlastra]

You need to pass a json message not the class instance. This should work:

                        holder1.agent.receiveMessage(res.message.toJSON()).then(msg => {
                            console.log('receivedMessage',JSON.stringify(msg,null,2));
                            
                        })