Deploy code to a function

POST /projects/{project_id}/branches/{branch_id}/functions/{slug}/deploymentsbeta

Creates a deployment for the function. Supply any subset of zip, environment, and runtime; omitted fields inherit the function's latest version. At least one field must be supplied. The first deployment of a function must include zip. The newest deployment becomes active.

Note: This endpoint is currently in Beta.

Markdown for AI context

curl "https://console.neon.tech/api/v2/projects/$PROJECT_ID/branches/$BRANCH_ID/functions/$SLUG/deployments" \
  -X POST \
  -H "Authorization: Bearer $NEON_API_KEY"

Also available in

neon functions deploy <branch_id>

Project ID

project_id

string

The Neon project ID

Branch ID

branch_id

string

The Neon branch ID

Slug

slug

string

The function slug

201

The created deployment

default

General error

This endpoint can return the standard Neon API error response.

Response fields

• message Required. Human-readable error message.
• code Required. Machine-readable error code.
• request_id Optional. Request identifier for debugging. You can provide one with the X-Request-ID header.

Retry guidance

If no response is returned, the request may still have reached the server. This is why retry safety depends on the method and status code.

Idempotent methods (GET, HEAD, OPTIONS) are generally safe to retry after a network error or timeout. Non-idempotent methods (POST, PATCH, DELETE, PUT) can change state, so avoid automatic retries unless your workflow can tolerate duplicate effects.

Responses with 423 Locked or 503 Service Unavailable are safe to retry. 423 Locked means the resource is temporarily locked, usually because another operation is in progress.