API Reference

/forms/{formId}/submissions

post
https://www.formstack.com/api/v2025/forms//submissions

Create a new submission for the specified form

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Path Params
integer
required

The unique identifier of the form to submit to

Body Params

Request payload for creating a new form submission

fields
array of objects

Array of field data to be submitted with their values

fields
string | null

The browser user agent string of the submitter

string | null

The IP address from which the submission is being made

string | null

Whether to mark the submission as read upon creation (true/false)

string | null

The GPS longitude coordinate if location data is available

string | null

The GPS latitude coordinate if location data is available

string | null

The unique device identifier if available from mobile submissions

Responses

400

Invalid request: for a file or signature field this includes mixing presigned fileKeys with inline base64 uploads in the same field, an unknown fileKey, or a file that violates the field size limits

Updated about 2 months ago

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Response
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application/json

Updated about 2 months ago