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Creating a Document using REST APIs for Diagram as a Code with Mermaid

  • April 2, 2026
  • 0 replies
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Hello, i want to create a document, creating a “Diagram as a Code” with Mermaid on Lucid through a REST API.

From the Documentation, i only see that in order to create a document, i need to send the following body:

{
  "product": "lucidchart",
  "title": "example",
  "parent": 123
}

but how do I send the actual contents of the diagram?

sequenceDiagram

Alice->>John: Hello John, how are you?

John-->>Alice: Great!

Alice-)John: See you later!

I read also that there is an alternative way of sending the information, but the documentation and examples on https://developer.lucid.co/reference/createorcopyorimportdocument are not clear to me.

Thank you!