POST
/
api
/
storage
/
buckets
/
{bucketName}
/
upload-strategy
{
  "method": "presigned",
  "uploadUrl": "https://s3-bucket.amazonaws.com/",
  "fields": {
    "bucket": "my-s3-bucket",
    "key": "app-key/avatars/profile-photo-1234567890-abc123.jpg",
    "X-Amz-Algorithm": "AWS4-HMAC-SHA256",
    "X-Amz-Credential": "AKIA.../20250905/us-east-2/s3/aws4_request",
    "X-Amz-Date": "20250905T000000Z",
    "Policy": "eyJ...",
    "X-Amz-Signature": "abc123..."
  },
  "key": "profile-photo-1234567890-abc123.jpg",
  "confirmRequired": true,
  "confirmUrl": "/api/storage/buckets/avatars/objects/profile-photo-1234567890-abc123.jpg/confirm-upload",
  "expiresAt": "2025-09-05T01:00:00Z"
}

Authorizations

​
x-api-key
string
header
required

Path Parameters

​
bucketName
string
required

Body

application/json
​
filename
string
required

Original filename for generating unique key

Example:

"profile-photo.jpg"

​
contentType
string

MIME type of the file

Example:

"image/jpeg"

​
size
integer

File size in bytes

Example:

102400

Response

Upload strategy details

​
method
enum<string>
required

Upload method - presigned for S3, direct for local storage

Available options:
presigned,
direct
Example:

"presigned"

​
uploadUrl
string
required

URL to upload the file to

Example:

"https://s3-bucket.amazonaws.com/"

​
key
string
required

Generated unique key for the file

Example:

"profile-photo-1234567890-abc123.jpg"

​
confirmRequired
boolean
required

Whether upload confirmation is required

Example:

true

​
fields
object

Form fields for presigned POST (S3 only)

Example:
{
  "bucket": "my-s3-bucket",
  "key": "app-key/avatars/profile.jpg",
  "X-Amz-Algorithm": "AWS4-HMAC-SHA256"
}
​
confirmUrl
string

URL to confirm the upload (if confirmRequired is true)

Example:

"/api/storage/buckets/avatars/objects/profile.jpg/confirm-upload"

​
expiresAt
string<date-time>

Expiration time for presigned URL (S3 only)

Example:

"2025-09-05T01:00:00Z"