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POST
Create an upload slot

Authorizations

Authorization
string
header
required

Send your FFmpeg API Cloud API key as a bearer token.

Body

application/json

Create an upload slot for a source media asset.

fileName
string
required
Minimum string length: 1
fileType
string
Minimum string length: 1
fileSize
integer
Required range: x <= 2147483648

Response

Upload slot created.

An upload slot and temporary source URL for a created media asset.

id
string<uuid>
required

A UUID value.

Pattern: ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
Example:

"3f0e9cfd-4e56-4c0b-8df0-2bfa88c40f50"

fileName
string
required
contentType
string | null
required
uploadUrl
string<uri>
required
sourceUrl
string<uri> | null
required
sourceUrlExpiresAt
string<date-time> | null
required

An ISO 8601 timestamp.

Pattern: ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$
Example:

"2026-04-15T08:30:00.000Z"