Query the Catalog system tree¶

Query the read-only navigation tree of the system database.

POST https://moi.matrixorigin.cn/newmoi/catalog/system/tree

Preparation before calling¶

Prepare a personal access token and workspace ID that has access to the target workspace.

The example below uses:

$AI_STUDIO_API_KEY: The actual personal access token, passed through the X-API-Key Header.
$WORKSPACE_ID: Target workspace ID, passed through X-Workspace-ID Header.

Request example¶

curl -X POST "https://moi.matrixorigin.cn/newmoi/catalog/system/tree" \
  -H "X-API-Key: $AI_STUDIO_API_KEY" \
  -H "X-Workspace-ID: $WORKSPACE_ID" \
  -H "Content-Type: application/json" \
  -d '{
    "include_table_leaves": false
  }'

Request body¶

Parameter	Type	Required	Description
`include_table_leaves`	boolean	No	Whether to include table leaf nodes in the tree.

Successful response¶

Returns 200 and the system library tree on success.

{
  "code": "OK",
  "msg": "OK",
  "data": {
    "tree": [
      {
        "type": "catalog",
        "name": "system",
        "node_list": []
      }
    ]
  }
}

The response fields are as follows.

Field	Type	Description
`data.tree`	array	System library navigation tree.
`data.tree[].type`	string	Node type.
`data.tree[].name`	string	Node name.
`data.tree[].description`	string	Node description.
`data.tree[].node_list`	array	List of child nodes.
`data.tree[].allowed_actions`	string[]	Operations allowed by the current identity on this node.

In this document, [] after a type means an array; for example, string[] is an array of strings. In field paths, [] means each item in an array; for example, data.tree[].name is the name field of each item in data.tree.

Error response¶

{
  "code": "ErrServer",
  "msg": "服务器内部错误",
  "data": null
}

Common HTTP errors¶

HTTP status code	error code	Common causes	Recommended actions
`400`	`ErrParamInvalid`	The request body format is invalid.	Check `include_table_leaves`.
`403`	`ErrForbidden`	The current identity does not have permission to read the system tree.	Use credentials with read permissions.
`500`	`ErrServer`	The server failed to read the system tree.	Try again later.

Last updated on Sep 3, 2026