Sets the content type of a web app response, like JSON or XML.
class ContentService method .setMimeType()
ContentService is the Apps Script service.
.setMimeType() is the method name you will see after a dot in your code.
What it does
Why it's used
- Tell browsers the response is JSON, XML, or CSV.
- Required for clients that check Content-Type.
Common errors
- Forgetting parentheses on setMimeType. Write ContentService.setMimeType(), not ContentService.setMimeType or setMimeType by itself.
- Skipping dots between chained calls. Each step needs a dot, like ContentService.setMimeType().
- Adding spaces where they do not belong. Write ContentService.setMimeType(), not ContentService .setMimeType(), ContentService.setMimeType (), or ContentService . setMimeType().
- Wrong capitalization. Use ContentService and setMimeType, not contentservice or setmimetype.
Snippets using this method
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Related methods
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.createTextOutput()
Builds a text response for a web app request.
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