Render Table Image

quickchart.render_table

ActionBusiness appsconnection required

Calls the QuickChart API with the connection's credentials.

Render a table of rows and columns as a PNG and emit it as a base64 file blob, for a report or a chat message that cannot show HTML.

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Connection

Required: Yes — the node will not save without one
Auth type: API key
Providers: QuickChart
Secret shape: the API key, or {"api_key": "…"} — optional, since QuickChart's free tier and a self-hosted instance need none
Config it needs: base_url
Resolved by: config.connection_id, else node.connection_id

Configuration

3 fields, 1 required. A dotted path is a nested object and name[] an array of objects — the editor renders the same tree.

Field	Type	Required	Default	Constraints	Example
data The table definition: a 'title', a 'columns' array of {title, dataIndex} entries, and a 'dataSource' array of row objects keyed by those dataIndex values.	object	Yes	—	≥ 1 characters	{"columns":[{"dataIndex":"customer","title":"Customer"},{"align":"right","dataIndex":"amount","title":"Amount"}],"dataSource":[{"amount":"1,200.00","customer":"Acme"}],"title":"Open invoices"}
options Styling overrides such as cellWidth, cellHeight, fontFamily, backgroundColor and the padding values.	object	No	—	—	{"backgroundColor":"#ffffff","cellWidth":120}
filename Name to give the rendered file on the wire. Defaults to the node's subject and the chosen format, such as chart.png.	string	No	—	—	chart.png

Example configuration

Every value below is the contract’s own example or default — nothing invented.

{
  "data": {
    "columns": [
      {
        "dataIndex": "customer",
        "title": "Customer"
      },
      {
        "align": "right",
        "dataIndex": "amount",
        "title": "Amount"
      }
    ],
    "dataSource": [
      {
        "amount": "1,200.00",
        "customer": "Acme"
      }
    ],
    "title": "Open invoices"
  },
  "filename": "chart.png",
  "options": {
    "backgroundColor": "#ffffff",
    "cellWidth": 120
  }
}

Output

One shape.

result

Field	Type	Example
file_content The file, base64-encoded.	string	—
content_encoding	string	base64
filename	string	app-main.zip
content_type	string	application/zip
size Raw size in bytes (before base64).	number	—

{
  "content_encoding": "base64",
  "content_type": "application/zip",
  "file_content": "",
  "filename": "app-main.zip",
  "size": 0
}

Notes

The table renderer lives on QuickChart's hosted API host (api.quickchart.io/v1/table) and is not part of the open-source server, so this node ignores the connection's base_url.

Related QuickChart nodes

See Render Table Image run in a workflow.

In a technical demo we add the QuickChart connection, drop the node on the canvas and let Workflow Health pre-flight it before the first real run.

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