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chain_subscribeRuntimeVersion

Enables clients to subscribe and receive updates regarding changes to the runtime version.​

Allows users to sign up to get information about changes made to the runtime version.

Example Request and Result for chain_subscribeRuntimeVersion method​

In this section, we provide an illustrative example of a request made to retrieve details contents using the chain_subscribeRuntimeVersion method. Additionally, we present the resulting response containing information about getting updates regarding changes to the runtime version using WS subscription.

Parameters​

FieldsTypeDescription
subscriptionstringAllows the client to manage the subscription
info

The example in this section uses a non-existing project id.

Make sure you replace it with your Vara Mainnet endpoint when issuing the API calls.

Don't have a project id? Here's a straightforward guide on how to obtain one!

Enables clients to subscribe and receive updates regarding changes to the runtime version.​

POST wss://vara-mainnet.blastapi.io/<project-id>

Request Body​

NameTypeDescription
subscriptionstring[]
{
  "jsonrpc": "2.0",
  "method": "state_runtimeVersion",
  "params": {
    "subscription": "JtpqJnVVaJmrqRrw",
    "result": {
      "specName": "vara",
      "implName": "vara",
      "authoringVersion": 1,
      "specVersion": 1110,
      "implVersion": 1,
      "apis": [
        [
          "0xcbca25e39f142387",
          2
        ],
        [
          "0xf3ff14d5ab527059",
          3
        ],
        [
          "0x17a6bc0d0062aeb3",
          1
        ],
        [
          "0x18ef58a3b67ba770",
          1
        ],
        [
          "0x29ca33476f4108aa",
          1
        ],
        [
          "0xdf6acb689907609b",
          4
        ],
        [
          "0x37e397fc7c91f5e4",
          2
        ],
        [
          "0x40fe3ad401f8959a",
          6
        ],
        [
          "0xd2bc9897eed08f15",
          3
        ],
        [
          "0xf78b278be53f454c",
          2
        ],
        [
          "0xab3c0572291feb8b",
          1
        ],
        [
          "0xed99c5acb25eedf5",
          3
        ],
        [
          "0xbc9d89904f5b923f",
          1
        ],
        [
          "0x37c8bb1350a9a2a8",
          4
        ],
        [
          "0xff8dc88037f26223",
          2
        ]
      ],
      "transactionVersion": 1,
      "stateVersion": 1
    }
  }
}

Curl Request example​

wscat -c 'wss://vara-mainnet.blastapi.io/<project-id>'
# wait for connection
messasge:
{
    "id": 1,
    "jsonrpc": "2.0",
    "method": "chain_subscribeRuntimeVersion",
    "params": []
}