gcp.storage.object.upload

Upload one object to GCS with cache and content metadata.

Overview

Property	Value
Workflow type	Linear
Library	Base-gcp
Version	1.0

Input Schema

Field	Type	Required	Default	Description
connection_uuid	uuid	Yes	—	GCP CloudConnection UUID.
project_id	string	No	—	GCP project override.
bucket	string	Yes	—	Destination bucket.
key	string	Yes	—	Destination object key.
body_base64	string	No	—	Base64 body for small direct uploads.
source_uri	string	No	—	Internal artifact URI for server-side streaming.
content_type	string	No	—	Object content type.
cache_control	string	No	—	Cache-Control metadata.
content_encoding	string	No	—	Optional content encoding.
metadata	json	No	—	Custom object metadata.

Output Schema

Field	Type	Required	Default	Description
connection_uuid	uuid	No	—	Echoed connection UUID.
project_id	string	No	—	Effective project id.
bucket	string	No	—	Destination bucket.
key	string	No	—	Destination object key.
object_uri	string	No	—	gs:// object URI.
generation	string	No	—	GCS object generation.
etag	string	No	—	Object etag.
size_bytes	integer	No	—	Uploaded size.
sha256	string	No	—	SHA-256 digest when calculated.
failure_reason	string	No	—	Human-readable failure reason.
failed_step	string	No	—	Failed logical step.
failed_layer	json	No	—	Engine failed layer envelope.
failed_at_state	string	No	—	State where failure occurred.
error	string	No	—	Error message.
error_type	string	No	—	Error class.

States

State	Initial	Terminal	Success	Auto-advance	Description
pending	Yes	No	—	preflight	—
preflighting	No	No	—	execute	—
uploading	No	No	—	complete	—
completed	No	Yes	Yes	—	—
failed	No	Yes	No	—	—

State Diagram

Transitions

From	Action	To	Description
pending	preflight	preflighting	—
preflighting	execute	uploading	—
uploading	complete	completed	—
* (any state)	fail	failed	—

API Usage

POST /api/workflows/start
Content-Type: application/json

{
  "workflow_type": "gcp.storage.object.upload",
  "initial_data": {
    "connection_uuid": "value",
    "bucket": "value",
    "key": "value"
  }
}