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OpenAPI Specification
openapi: 3.2.0
info:
title: HeyForm Auth Upload API
description: HeyForm is an open-source conversational form builder providing REST and GraphQL endpoints for managing forms, submissions, workspaces, integrations, and webhooks. The primary data API uses GraphQL; this document covers the publicly accessible REST endpoints discovered in the open-source codebase.
version: 1.0.0
contact:
name: HeyForm Support
url: https://docs.heyform.net
license:
name: AGPL-3.0
url: https://github.com/heyform/heyform/blob/main/LICENSE
servers:
- url: https://api.heyform.net
description: HeyForm Cloud API
- url: http://localhost:8000
description: Self-hosted HeyForm instance (default port)
tags:
- name: Upload
description: File upload
paths:
/api/upload:
post:
operationId: uploadFile
summary: Upload a file
description: Uploads a file (image or document) to the HeyForm storage backend. Returns the URL at which the uploaded file can be accessed. SVG files are blocked for security reasons.
tags:
- Upload
requestBody:
required: true
content:
multipart/form-data:
schema:
type: object
required:
- file
properties:
file:
type: string
format: binary
description: The file to upload.
responses:
'201':
description: File uploaded successfully
content:
application/json:
schema:
$ref: '#/components/schemas/UploadResult'
example:
filename: photo.jpg
url: https://heyform.net/static/upload/photo-abc123.jpg
size: 204800
'400':
$ref: '#/components/responses/BadRequest'
components:
schemas:
UploadResult:
type: object
description: Result of a successful file upload.
required:
- filename
- url
- size
properties:
filename:
type: string
description: Original filename of the uploaded file.
url:
type: string
format: uri
description: Publicly accessible URL of the uploaded file.
size:
type: integer
description: File size in bytes.
Error:
type: object
properties:
statusCode:
type: integer
message:
type: string
error:
type: string
responses:
BadRequest:
description: Bad request — invalid input or business logic violation
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
example:
statusCode: 400
message: The form does not exist
error: Bad Request
securitySchemes:
cookieAuth:
type: apiKey
in: cookie
name: heyform_sid
description: Session cookie set by the login mutation or OAuth callback. All authenticated GraphQL mutations and the CSV export endpoint require this cookie.
externalDocs:
description: HeyForm Documentation
url: https://docs.heyform.net