Discovery Queries

type: https://didcomm.org/discover-features/2.0/queries

Message to discover supported features by agent. This message follows the DIDComm protocol.

{
  "type": "https://didcomm.org/discover-features/2.0/queries",
  "id": "6f269888-0f93-4012-9f9d-e1da9896f261",
  "body": {
    "queries": [
      { "feature-type": "accept" }
    ]
  }
}

Field	Description	Type	Required
queries	List of queries	object	✅
queries[].feature-type	Feature type	string	✅
queries[].match	Regex pattern to match features	string	❌

• Example of report problem message:

    {
        "id": "6f269888-0f93-4012-9f9d-e1da9896f261",
        "thid": "6f269888-0f93-4012-9f9d-e1da9896f261",
        "typ": "application/iden3comm-plain-json",
        "type": "https://didcomm.org/discover-features/2.0/queries",
        "body": {
          "queries": [
            {
              "feature-type": "accept",
              "match": "iden3comm/v1;env=application/iden3-zkp-json;.*"
            }
          ]
        },
        "from": "did:polygonid:polygon:amoy:2qaPod1Qxo9UKTzR7K3Yo63gNRFHBm98bh1k1SEY6x",
        "to": "did:polygonid:polygon:mumbai:2qFroxB5kwgCxgVrNGUM6EW3khJgCdHHnKTr3VnTcp"
    }

Now only one feature that is accepted as a query param is accept. Example of response

{
    "id": "6f269888-0f93-4012-9f9d-e1da9896f262",
    "thid": "6f269888-0f93-4012-9f9d-e1da9896f261",
    "type": "https://didcomm.org/discover-features/2.0/disclose",
    "body":{
        "disclosures": [
            {
                "feature-type": "accept",
                "id": "iden3comm/v1;env=application/iden3-zkp-json;circuitId=authV2;alg=groth16"
            },
            {
                "feature-type": "accept",
                "id": "iden3comm/v1;env=application/iden3comm-plain-json"
            }
        ]
    },
  "to": "did:polygonid:polygon:amoy:2qaPod1Qxo9UKTzR7K3Yo63gNRFHBm98bh1k1SEY6x",
  "from": "did:polygonid:polygon:mumbai:2qFroxB5kwgCxgVrNGUM6EW3khJgCdHHnKTr3VnTcp"
}

Field	Description	Type	Required
disclosures	List of disclosed features	object	✅
disclosures[].feature-type	Feature type	string	✅
disclosures[].id	List of supported feature identifiers	string	✅

See possible accept profiles here