Preview

POST /api/preview

Compile inline Typst markup with JSON data and return a PDF preview.

Request Body

{
  "templateContent": "#let data = json.decode(sys.inputs.at(\"data\"))\n= Hello, #data.name",
  "data": {
    "name": "World"
  }
}

Field	Type	Required	Description
templateContent	string	Yes	Typst markup content
data	object	Yes	JSON data to inject as Typst variables
variableName	string	No	Custom variable name (default: data)

Example

curl -X POST http://localhost:3000/api/preview \
  -H "Content-Type: application/json" \
  -d '\''{
    "templateContent": "#let data = json.decode(sys.inputs.at(\"data\"))\n= Hello, #data.name",
    "data": { "name": "World" }
  }'\'' \
  -o preview.pdf

Response

Returns application/pdf with the compiled PDF content.

Error Codes

Code	Description
400	Missing or invalid templateContent or data fields
413	Payload too large (max 10 MB)
429	Rate limit exceeded for compilation
500	Typst compilation error

Rate Limiting

This endpoint uses the stricter compilation rate limit: 1/4 of the general REPORTS_RATE_LIMIT.