create.a 
The create.a action is the first version of the create action for the Ultra blockchain. It registers a new group in the groups.a table using the parameters specified by the creator.
Behavior 
- This action reads the new group ID from the groupidtable and then increments theidfield.
- The eosio.groupaccount pays for the RAM usage for thegroupidtable.
- Any account can create a group, and the creator account pays the RAM usage to store the group info in the groups.atable.
Action Parameters 
| Name | C++ Type | JavaScript Type | Remarks | 
|---|---|---|---|
| creator | name | String | The account that creates the group. | 
| meta_uri | optional<string> | String/Null | URI pointing to the group's off-chain metadata. | 
| meta_hash | optional<checksum256> | String/Null | Hash of the group's metadata. | 
| memo | string | String | A memo string. | 
Note: The meta_uri and meta_hash can be null or an empty string, except that the combination of a null/empty meta_uri and a non-null/non-empty meta_hash is not allowed.
CLI - cleos 
You can use the following cleos command to create a new group:
bash
cleos push action eosio.group create.a '{"creator": "alice", "meta_uri": "https://ultra/group/meta/germany", "meta_hash": "9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08", "memo": "new group"}' -p alice@activeJavaScript - eosjs 
To interact with this action using eosjs, you can use the following JavaScript code:
javascript
await api.transact({
  actions: [
    {
      "account": "eosio.group",
      "name": "create.a",
      "authorization": [{ "actor": "alice", "permission": "active" }],
      "data": {
        "creator": "alice",
        "meta_uri": "https://ultra/group/meta/germany",
        "meta_hash": "9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08",
        "memo": "new group"
      }
    }
  ]
});