Sequence Op

This operation evaluates all items in the sequence and returns last result.

Definition: ["sequence", <item1: expression(any)>, ...<itemN: expression(any)>]

• <item: expression(any)> - represents an expression to be evaluated.

Usage

Request:

In this example request this sequence will create a user, create a group with that user and link the group to the user's main group.

["sequence", 
   ["var", "user", ["run", "createUser", ["value", {
       "username": "test",
       "password": "test"
    }]
   ]],
   ["var", "group", ["run", "createUserGroup", ["object", {
       "name": ["value", "My Group"],
       "owner_id": ["var", "user.user_id"]
    }]
   ]],
   ["run", "linkGroup", ["object", {
       "to_group_id": ["value", 2],
       "from_group_id": ["var", "group.group_id"]
    }]
   ]
]

Response:

{
   "group_linked": true
}

Typical Usage

You would use this operation if you need to run multiple operations sequentially, and you can do it all in one request. These include when you need to create an user and link it to an entity, or create multiple items all at once.

Limit

A single sequence may contain at most limits.maxSequenceOperations items (64 by default), which bounds how much one request can ask for. A sequence with more items than that is rejected during validation. See Configuration to change it.