Create a presigned file upload

POST/api/v2/files/presign

Authorization

AuthorizationBearer token (Anlyon API key) · headerrequired

Workspace API key sent as Authorization: Bearer <key>.

better-auth.session_tokenAPI key · cookierequired

Browser session used by dashboard-only operations.

Header parameters

X-Request-Idstring

Optional caller correlation ID. Unsafe or oversized values are replaced.

max length 128

Idempotency-Keystring

Stable retry key for a mutation. The key is claimed atomically before the handler runs, so concurrent retries execute the side effect at most once. Replaying the key for the same request (same method, path, workspace and JSON body) returns the original response with an X-Idempotent-Replay: true header. Reusing the key for a different request returns 409 with error code idempotency_key_reuse. A duplicate arriving while the first is still in flight waits and then replays; if the first does not finish in time the duplicate gets 409 idempotency_request_in_progress. Keys are retained for 24 hours. Only successful (2xx) responses are stored; a failed request frees the key so it can be retried.

min length 1 · max length 255

Request body

requiredapplication/json

namestringrequired

min length 1 · max length 255

sizeBytesintegerrequired

min 1

mimeTypestring

min length 1 · max length 255 · default: "application/octet-stream"

metadataobject

Responses

201

Presigned upload created; confirm it after the PUT succeeds.

successbooleanrequired

Allowed:true

dataobjectrequired

Show properties

fileIdstringrequired

uploadUrlstring<uri>required

expiresAtstring<date-time>required

400

Bad Request - Invalid input data

successbooleanrequired

requestIdstringrequired

Correlation ID matching the X-Request-Id response header.

errorobjectrequired

Show properties

codestring

messagestring

detailsobject

401

Unauthorized - Invalid or missing API key

successbooleanrequired

requestIdstringrequired

Correlation ID matching the X-Request-Id response header.

errorobjectrequired

Show properties

codestring

messagestring

detailsobject

402

Payment Required - Usage quota exceeded

successbooleanrequired

requestIdstringrequired

Correlation ID matching the X-Request-Id response header.

errorobjectrequired

Show properties

codestring

messagestring

detailsobject

403

Authenticated credential lacks the required scope or workspace access.

successbooleanrequired

requestIdstringrequired

Correlation ID matching the X-Request-Id response header.

errorobjectrequired

Show properties

codestring

messagestring

detailsobject

413

File exceeds the deployment or workspace-plan size limit.

successbooleanrequired

requestIdstringrequired

Correlation ID matching the X-Request-Id response header.

errorobjectrequired

Show properties

codestring

messagestring

detailsobject

429

Too Many Requests - Rate limit exceeded

successbooleanrequired

requestIdstringrequired

Correlation ID matching the X-Request-Id response header.

errorobjectrequired

Show properties

codestring

messagestring

detailsobject

503

A required provider or platform dependency is not configured or available.

successbooleanrequired

requestIdstringrequired

Correlation ID matching the X-Request-Id response header.

errorobjectrequired

Show properties

codestring

messagestring

detailsobject

Try it

Server

Base URLCustom base URLOverrides the selected server when set.

Authorization

Bearer token (Anlyon API key)Remember on this deviceInclude my values in samples

Parameters

X-Request-IdheaderOptional caller correlation ID. Unsafe or oversized values are replaced.Idempotency-KeyheaderStable retry key for a mutation. The key is claimed atomically before the handler runs, so concurrent retries execute the side effect at most once. Replaying the key for the same request (same method, path, workspace and JSON body) returns the original response with an `X-Idempotent-Replay: true` header. Reusing the key for a different request returns `409` with error code `idempotency_key_reuse`. A duplicate arriving while the first is still in flight waits and then replays; if the first does not finish in time the duplicate gets `409 idempotency_request_in_progress`. Keys are retained for 24 hours. Only successful (2xx) responses are stored; a failed request frees the key so it can be retried.

Bodyapplication/json

Request body

Request

curl -X POST 'https://api.anlyon.com/api/v2/files/presign' \
  -H 'Authorization: Bearer YOUR_TOKEN' \
  -H 'Content-Type: application/json' \
  -d '{
  "name": "string",
  "sizeBytes": 1,
  "mimeType": "application/octet-stream",
  "metadata": {}
}'

const response = await fetch("https://api.anlyon.com/api/v2/files/presign", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_TOKEN",
    "Content-Type": "application/json"
  },
  body: "{\n  \"name\": \"string\",\n  \"sizeBytes\": 1,\n  \"mimeType\": \"application/octet-stream\",\n  \"metadata\": {}\n}"
});

import requests

response = requests.post(
    "https://api.anlyon.com/api/v2/files/presign",
    headers={
        "Authorization": "Bearer YOUR_TOKEN",
        "Content-Type": "application/json"
    },
    data="{\n  \"name\": \"string\",\n  \"sizeBytes\": 1,\n  \"mimeType\": \"application/octet-stream\",\n  \"metadata\": {}\n}",
)

Response

{
  "success": true,
  "data": {
    "fileId": "string",
    "uploadUrl": "http://example.com",
    "expiresAt": "2019-08-24T14:15:22Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request data",
    "details": {
      "url": "Invalid URL format"
    }
  }
}

{
  "success": false,
  "error": {
    "code": "AUTHENTICATION_ERROR",
    "message": "Invalid or missing API key"
  }
}

{
  "success": false,
  "error": {
    "code": "QUOTA_EXCEEDED",
    "message": "Daily message quota exceeded. Upgrade your plan to continue."
  }
}

{
  "success": false,
  "requestId": "req_0123456789abcdef0123456789abcdef",
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request data",
    "details": {}
  }
}

{
  "success": false,
  "requestId": "req_0123456789abcdef0123456789abcdef",
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request data",
    "details": {}
  }
}

{
  "success": false,
  "error": {
    "code": "RATE_LIMIT_EXCEEDED",
    "message": "Rate limit exceeded. Please try again later."
  }
}

{
  "success": false,
  "requestId": "req_0123456789abcdef0123456789abcdef",
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request data",
    "details": {}
  }
}