# S3
## GET S3 Presigned POST
> Generate a presigned POST for uploading files directly to S3.\
> \
> \*\*Upload Flow:\*\*\
> 1\. Call this endpoint to get presigned POST URL and fields\
> 2\. POST the file to S3 using the returned URL and fields (include \`file\` as last field)\
> 3\. Call \`/api/s3/success\` with the key, uuid, name, and etag to confirm upload\
> \
> \*\*Expiration:\*\* 5 minutes
```json
{"openapi":"3.0.3","info":{"title":"Kizen API","version":"1.0.0"},"security":[{"businessId":[],"userId":[],"apiKey":[]},{}],"components":{"securitySchemes":{"businessId":{"type":"apiKey","in":"header","name":"X-BUSINESS-ID"}},"schemas":{"PresignedPostResponse":{"type":"object","properties":{"url":{"type":"string","format":"uri","description":"POST destination URL for upload"},"fields":{"type":"object","additionalProperties":{"type":"string"},"description":"Form fields to include in POST request"},"s3object_id":{"type":"string","format":"uuid","description":"UUID to use when calling /api/s3/success"},"max_file_size":{"type":"integer","description":"Maximum allowed file size in bytes"},"expires_at":{"type":"string","format":"date-time","description":"When the presigned POST expires"}},"required":["expires_at","fields","max_file_size","s3object_id","url"]},"PresignedPostErrorResponse":{"type":"object","properties":{"detail":{"type":"object","additionalProperties":{"type":"string"}}},"required":["detail"]}}},"paths":{"/api/s3/presigned-post":{"get":{"operationId":"s3_presigned_post_retrieve","description":"Generate a presigned POST for uploading files directly to S3.\n\n**Upload Flow:**\n1. Call this endpoint to get presigned POST URL and fields\n2. POST the file to S3 using the returned URL and fields (include `file` as last field)\n3. Call `/api/s3/success` with the key, uuid, name, and etag to confirm upload\n\n**Expiration:** 5 minutes\n","summary":"GET S3 Presigned POST","parameters":[{"in":"query","name":"contenttype","schema":{"type":"string"},"description":"MIME type of the file. Examples: `application/pdf`, `text/plain`, `image/png`, `application/json`","required":true},{"in":"query","name":"filename","schema":{"type":"string"},"description":"Name of the file to upload (e.g., 'updated-resume.pdf')","required":true},{"in":"query","name":"source","schema":{"type":"string"},"description":"Allowed values: `field_value`, `form_field_value`, `activity_field_value`, `automation_value`, `employee_import`, `record_import`, `meta_import`, `smart_connector_import`, `knowledge_source`, `public_image`, `third_party_image`","required":true}],"tags":["S3"],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PresignedPostResponse"}}},"description":""},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PresignedPostErrorResponse"}}},"description":""}}}}}}
```
## POST S3 File upload success
> This is where the upload will send a POST request after the file has been stored in S3.
```json
{"openapi":"3.0.3","info":{"title":"Kizen API","version":"1.0.0"},"security":[{"businessId":[],"userId":[],"apiKey":[]},{}],"components":{"securitySchemes":{"businessId":{"type":"apiKey","in":"header","name":"X-BUSINESS-ID"}},"schemas":{"S3Object":{"type":"object","properties":{"id":{"type":"string","format":"uuid","readOnly":true},"created":{"type":"string","format":"date-time","readOnly":true},"key":{"type":"string"},"name":{"type":"string","nullable":true},"url":{"type":"string","format":"uri"},"thumbnail_url":{"type":"string","format":"uri"},"size_bytes":{"type":"integer","maximum":9223372036854776000,"minimum":0,"format":"int64"},"size_formatted":{"type":"string","readOnly":true},"content_type":{"type":"string","nullable":true},"is_public":{"type":"boolean"},"common_key":{"type":"string","readOnly":true,"nullable":true},"is_common":{"type":"boolean","readOnly":true},"metadata":{"type":"object","additionalProperties":{}},"employee":{"type":"object","additionalProperties":{},"readOnly":true}},"required":["common_key","created","employee","id","is_common","key","size_formatted","thumbnail_url","url"]}}},"paths":{"/api/s3/success":{"post":{"operationId":"s3_success_create","description":"This is where the upload will send a POST request after the file has been stored in S3.","summary":"POST S3 File upload success","parameters":[{"in":"query","name":"source","schema":{"type":"string"},"description":"Kind of the file (e.g. 'SMART_CONNECTOR_IMPORT')"}],"tags":["S3"],"requestBody":{"content":{"application/x-www-form-urlencoded":{"schema":{"type":"object","properties":{"uuid":{"type":"string","description":"S3 object UUID"},"key":{"type":"string","description":"S3 object key"},"name":{"type":"string","description":"File name"},"is_public":{"type":"boolean","description":"Whether the S3 object is public (default: false)","required":false},"etag":{"type":"string","description":"S3 object Entity Tag (ETag)"},"business_id":{"type":"string","description":"ID of the business associated with the S3 object","required":false}}}}}},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/S3Object"}}},"description":""}}}}}}
```
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://developer.kizen.com/api/s3.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.