Get Document Upload URL - Yala Payout APIs

Overview

Returns a presigned PUT URL so your server can upload an invoice directly to Yala’s private S3 bucket. Yala does not accept file bytes on this endpoint—only metadata (filename, contentType). After uploading to S3, use the returned documentUrl on:

POST /initiate as supportingDocument, or
PATCH /:id/documents in the documents array

Read Uploading Supporting Documents for the full 3-step flow: call Yala, upload to S3, then call Yala again with documentUrl.

Upload flow (3 steps)

Step	Where	Action
1	Yala API	`POST /documents/upload-url` returns `uploadUrl` and `documentUrl`
2	Amazon S3	`PUT` file bytes to `uploadUrl` (not Yala)
3	Yala API	`POST /initiate` or `PATCH /:id/documents` with `documentUrl`

Request

POST /v1/payout-api/payouts/documents/upload-url HTTP/1.1
Host: gateway.staging.useyala.com
Content-Type: application/json
x-api-key: <YOUR_API_KEY>

{
  "filename": "invoice.pdf",
  "contentType": "application/pdf"
}

Request Fields

Field	Type	Required	Description
`filename`	string	Yes	Original filename (basename only, e.g. `invoice.pdf`)
`contentType`	string	Yes	MIME type: `application/pdf`, `image/jpeg`, `image/jpg`, or `image/png`

Response

{
  "documentId": "550e8400-e29b-41d4-a716-446655440000",
  "uploadUrl": "https://yala-payout-api-docs-staging.s3.us-east-1.amazonaws.com/staging/payout-api/.../invoice.pdf?X-Amz-Algorithm=...",
  "documentUrl": "https://yala-payout-api-docs-staging.s3.us-east-1.amazonaws.com/staging/payout-api/<businessId>/<documentId>/invoice.pdf",
  "expiresAt": "2024-01-20T10:15:00.000Z",
  "method": "PUT",
  "headers": {
    "Content-Type": "application/pdf"
  }
}

Response Fields

Field	Type	Description
`documentId`	string (UUID)	Document identifier (embedded in S3 key)
`uploadUrl`	string	Presigned URL for one-time PUT to S3 (~15 min TTL)
`documentUrl`	string	Stable HTTPS URL — pass this to initiate/PATCH after upload succeeds
`expiresAt`	string (ISO 8601)	When `uploadUrl` expires
`method`	string	Always `PUT`
`headers`	object	Headers required on the PUT request (e.g. `Content-Type`)

Upload the file to S3

curl -X PUT "<uploadUrl>" \
  -H "Content-Type: application/pdf" \
  --data-binary @invoice.pdf

const { uploadUrl, documentUrl, headers } = await uploadUrlResponse.json();
const file = await fs.readFile('invoice.pdf');

const putResult = await fetch(uploadUrl, {
  method: 'PUT',
  headers,
  body: file,
});

if (!putResult.ok) {
  throw new Error('S3 upload failed');
}

// Use documentUrl on initiate or PATCH — not uploadUrl

For manual testing, use the Postman collection Upload File to S3 request.

Error Responses

400 Bad Request

Invalid filename or unsupported contentType.

401 Unauthorized

Invalid or missing API key.

​Overview

​Upload flow (3 steps)

​Request

​Request Fields

​Response

​Response Fields

​Upload the file to S3

​Error Responses

​400 Bad Request

​401 Unauthorized

​Related

Overview

Upload flow (3 steps)

Request

Request Fields

Response

Response Fields

Upload the file to S3

Error Responses

400 Bad Request

401 Unauthorized

Related