# ACA-Py RFC 0496 - Transition from Connections to DID Exchange
* Step 1 implemented in v0.6.0
ACA-Py v0.7.3 used
* Connection Invitation
* Inline DIDDoc Service Entry
```
/out-of-band/create-invitation
{
"handshake_protocols": [
"did:sov:BzCbsNYhMrjHiqZDTUASHg;spec/connections/1.0"
],
"metadata": {},
"my_label": "Faber college",
"use_public_did": false
}
```
**Invitation**
```
{
"@type": "did:sov:BzCbsNYhMrjHiqZDTUASHg;spec/out-of-band/1.0/invitation",
"@id": "252aac24-45ec-4814-94ad-5e4101c8900c",
"services": [
{
"id": "#inline",
"type": "did-communication",
"recipientKeys": [
"did:key:z6Mkt8phxfGBNLGqZ7iBZ6dPtokTRPZvEtNcqXFYr8nfm5xY"
],
"serviceEndpoint": "http://host.docker.internal:8002"
}
],
"label": "Faber college",
"handshake_protocols": [
"did:sov:BzCbsNYhMrjHiqZDTUASHg;spec/connections/1.0"
]
}
```
**Invitation URL**
```
http://host.docker.internal:8002?oob=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
```
* DID Service Entry
```
/out-of-band/create-invitation
{
"handshake_protocols": [
"did:sov:BzCbsNYhMrjHiqZDTUASHg;spec/connections/1.0"
],
"metadata": {},
"my_label": "Faber college",
"use_public_did": true
}
```
**Invitation**
```
{
"@type": "did:sov:BzCbsNYhMrjHiqZDTUASHg;spec/out-of-band/1.0/invitation",
"@id": "74ee9861-e9ea-4ef4-a1d0-2bbb6c7aec22",
"services": [
"did:sov:FBmi5JLf5g58kDnNXMy4QM"
],
"label": "Faber college",
"handshake_protocols": [
"did:sov:BzCbsNYhMrjHiqZDTUASHg;spec/connections/1.0"
]
}
```
**Invitation URL**
```
http://host.docker.internal:8002?oob=eyJAdHlwZSI6ICJkaWQ6c292OkJ6Q2JzTlloTXJqSGlxWkRUVUFTSGc7c3BlYy9vdXQtb2YtYmFuZC8xLjAvaW52aXRhdGlvbiIsICJAaWQiOiAiNzRlZTk4NjEtZTllYS00ZWY0LWExZDAtMmJiYjZjN2FlYzIyIiwgInNlcnZpY2VzIjogWyJkaWQ6c292OkZCbWk1SkxmNWc1OGtEbk5YTXk0UU0iXSwgImxhYmVsIjogIkZhYmVyIGNvbGxlZ2UiLCAiaGFuZHNoYWtlX3Byb3RvY29scyI6IFsiZGlkOnNvdjpCekNic05ZaE1yakhpcVpEVFVBU0hnO3NwZWMvY29ubmVjdGlvbnMvMS4wIl19
```
* Connection-less Present Proof Request
```
/out-of-band/create-invitation
{
"handshake_protocols": [
"did:sov:BzCbsNYhMrjHiqZDTUASHg;spec/connections/1.0"
],
"attachments": [
{
"id": "ab79c785-9675-45d5-8bf7-a8aade6908dc",
"type": "present-proof"
}
],
"metadata": {},
"my_label": "Faber college Present Proof",
"use_public_did": false
}
```
**Invitation**
```
{
"@type": "did:sov:BzCbsNYhMrjHiqZDTUASHg;spec/out-of-band/1.0/invitation",
"@id": "14c7e69e-e19b-4637-8942-10478f69736b",
"services": [
{
"id": "#inline",
"type": "did-communication",
"recipientKeys": [
"did:key:z6Mkfoh2sHuyQjeZ1Bg5HwWP8VBTNZNbFRRzrEEB4ukaGjka"
],
"serviceEndpoint": "http://host.docker.internal:8002"
}
],
"handshake_protocols": [
"did:sov:BzCbsNYhMrjHiqZDTUASHg;spec/didexchange/1.0"
],
"label": "Invitation to Barry",
"requests~attach": [
{
"@id": "request-0",
"mime-type": "application/json",
"data": {
"json": {
"@type": "did:sov:BzCbsNYhMrjHiqZDTUASHg;spec/present-proof/1.0/request-presentation",
"@id": "bde119c4-d62a-42cd-aacc-6a9575b68212",
"comment": "string",
"request_presentations~attach": [
{
"@id": "libindy-request-presentation-0",
"mime-type": "application/json",
"data": {
"base64": "eyJuYW1lIjogIlByb29mIHJlcXVlc3QiLCAibm9uY2UiOiAiMSIsICJyZXF1ZXN0ZWRfYXR0cmlidXRlcyI6IHsidGVzdCI6IHsibmFtZSI6ICJzY29yZSJ9fSwgInJlcXVlc3RlZF9wcmVkaWNhdGVzIjoge30sICJ2ZXJzaW9uIjogIjEuMCJ9"
}
}
]
}
}
}
]
}
```
**Invitation URL**
```
http://host.docker.internal:8002?oob=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-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
```
* Step 2
* [URL shortening](https://github.com/hyperledger/aries-rfcs/blob/main/features/0434-outofband/README.md#url-shortening) not implemented, instead we `Base64Url` encode the invitation and send it with the URL.
`Example transformed invitation message [Step 2]`
```
{
"@type": "did:sov:BzCbsNYhMrjHiqZDTUASHg;spec/present-proof/1.0/request-presentation",
"@id": "1234-1234-1234-1234",
"comment": "Request proof of some claims from verified credentials",
"services": {
"recipientKeys": ["6MkpTHR8VNsBxYAAWHut2Geadd9jSwuBV8xRoAnwWsdvktH"],
"routingKeys": [],
"serviceEndpoint": "https://example.com:5000"
},
"requests~attach": [
{
"@id": "libindy-request-presentation-0",
"mime-type": "application/json",
"data": {
"base64": "<bytes for base64>"
}
}
]
}
```
* handshake_protocols MUST NOT be present - not implemented, it is still present
* services MUST have exactly one entry and be in the form above or be a single DID (but not both) - It has exaclty one entry but provided as a list
* [RFC0627](https://github.com/hyperledger/aries-rfcs/blob/main/features/0627-static-peer-dids/README.md) Static Peer DID - not implemented.
Note: Some issues observed in RFC0496 document.
It should be `requests~attach` and not `request~attach` or `request_presentations~attach`. It should be `services` [[RFC0434](https://github.com/hyperledger/aries-rfcs/blob/main/features/0434-outofband/README.md#invitation-httpsdidcommorgout-of-bandverinvitation)] and not `service` [[RFC0496](https://github.com/hyperledger/aries-rfcs/tree/main/features/0496-transition-to-oob-and-did-exchange#connection-invitationinline-diddoc-service-entry)].
```
The constraints on this form of the out-of-band invitation sent during Step 2 are:
goal_code is ignored and goal is used as the comment.
handshake_protocols MUST NOT be present.
request~attach MUST have exactly one entry and that entry must be a request-presentation message.
service MUST have exactly one entry and be in the form above or be a single DID (but not both)
```
Requirement for `requests~attach` and `services` are same but they are shown as a `list` and `dict` respectively in the transformed example following the above.
Sign in with Wallet
Connect another wallet