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publishEventSource

POST
/katara/v1/orgs/{org_id}/environments/{environment_id}/event-sources
curl --request POST \
--url https://api.katara.com/katara/v1/orgs/2489E9AD-2EE2-8E00-8EC9-32D5F69181C0/environments/2489E9AD-2EE2-8E00-8EC9-32D5F69181C0/event-sources \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--header 'Idempotency-Key: example' \
--header 'X-Katara-CSRF: 1' \
--data '{ "source_id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0", "expected_revision": 1, "expected_environment_epoch": 1, "expected_reset_generation": 1, "configuration": { "name": "example", "run": "example", "signing_key": { "id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0", "public_key": "example" }, "input_mode": "fixed", "max_event_age_seconds": 1, "max_pending_events": 1 } }'

Requires current synapse:event_sources:write authority in the exact environment. Publication pins only a public Ed25519 signing key, event age and capacity bounds, input mode, and the complete run configuration. It neither activates nor starts a run. Activation and retirement require human sessions; enabling also requires an available event admission worker. Preserve exact request and key after an unknown mutation. No automatic retry. Fixed mode refuses event input overrides; event_reference requires an exact current approved JSON content reference, never a raw event body. Replies expose execution_ready; false refuses enabling. Test and Live authority, reset and funding remain separate. Signing private keys must stay with the external source. This metadata API does not expose event admission receipts.

org_id
required
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
environment_id
required
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
Idempotency-Key
required
string
/^[A-Za-z0-9._:-]{8,128}$/
X-Katara-CSRF
Allowed value: 1

Browser cookie mutations require value 1 and an allowed Origin. Session bearer clients may omit this header.

X-Katara-Account-ID
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/

Required for cookie-authenticated changes. Use the UUID of the account that loaded the application. A different current cookie account returns account_changed before the handler runs. Session bearer and API key clients do not require this header.

Media typeapplication/json
object
source_id
required
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
expected_revision
required
integer
<= 9007199254740990
expected_environment_epoch
required
integer
>= 1 <= 9007199254740991
expected_reset_generation
required
integer
>= 1 <= 9007199254740991
configuration
required
object
name
required
string
>= 1 characters <= 120 characters
run
required

Model, tools, schemas and limits come from the immutable agent version. Paid Test Compute requires the exact consent funding the grant budget; the API checks it against current payer authority.

object
agent_version
required
object
id
required
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
version
required
integer
>= 1 <= 9007199254740991
integrity
required
string
/^sha256:[a-f0-9]{64}$/
grant_id
required
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
input_ref
required
object
org_id
required
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
environment_id
required
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
id
required
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
version
required
integer
>= 1 <= 9007199254740991
integrity
required
string
/^sha256:[a-f0-9]{64}$/
media_type
required
Allowed value: application/json
size_bytes
required
integer
<= 1048576
budget_id
required
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
usage_class
required
Allowed values: simulation test_compute live
paid_test_consent_id
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
output_target
required

Explicit destination for run artifacts. Store and key versions must still be active at admission and byte access. Choose retention from 60 seconds to 365 days; no silent default or destination substitution.

object
store_id
required
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
store_version
required
integer
>= 1 <= 9007199254740991
key_id
required
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
key_version
required
integer
>= 1 <= 9007199254740991
retention_seconds
required
integer
>= 60 <= 31536000
workload_grants
required
Array<object>
>= 1 items <= 8 items unique items
object
id
required
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
audience
required
Allowed values: katara:synapse katara:locus
signing_key
required
object
id
required
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
public_key
required

Canonical base64 of the 32-byte Ed25519 public key. Never send a private signing key.

string
/^[A-Za-z0-9+/]{42}[AEIMQUYcgkosw048]=$/
input_mode
required
Allowed values: fixed event_reference
max_event_age_seconds
required
integer
>= 10 <= 86400
max_pending_events
required
integer
>= 1 <= 10000

Event-source metadata or completed immutable operation; no execution implied.

Media typeapplication/json
object
operation_id
required
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
resource_id
required
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
completed
required
boolean
Examplegenerated
{
"operation_id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
"resource_id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
"completed": true
}
Cache-Control
string
Allowed value: no-store

Request error

Media typeapplication/json
object
error
required
object
message
required
string
>= 1 characters <= 500 characters
type
required
string
>= 1 characters <= 100 characters
code
required

Stable; branch on it. Any operation can answer invalid_request, with param naming the refused field when there is one; human_session_required, when an API key, service account or workload calls an operation only a signed-in person may perform; reauthentication_required, when a person’s sign-in is too old for the operation; permission_denied; route_not_found and method_not_allowed, when no operation matches the path or method; and feature_unavailable, when the operation’s service is not enabled on this deployment.

string
>= 1 characters <= 100 characters
param
required

The request field a refusal is about, such as the agent_id or run_id query parameter; null when the refusal is not about one field.

string | null
request_id
required
string
>= 1 characters <= 100 characters
upstream_status
required
integer | null
action
Allowed values: sign_in reauthenticate request_access review fund retry reconcile refresh support
operation_id
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
snapshot_ref
string format: uuid
/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/
Allowed value: 00000000-0000-0000-0000-000000000000
Example
{
"error": {
"action": "sign_in"
}
}