In GraphOS, a launch represents the complete process of making a set of updates to a supergraph, usually initiated by changes to one of its subgraphs.
These updates might include:
- Adding, removing, or modifying types and fields in a subgraph schema
- Adding or removing entire subgraphs
- Migrating types or fields between subgraphs
In some cases, a launch might consist entirely of changes that don't affect your supergraph's public API (such as migrating fields between subgraphs).
Your supergraph's Launches page in Apollo Studio enables you to observe and monitor the schema delivery process for both in-progress and past launches:
The green PUBLISHED badge indicates which launch corresponds to your graph's current published schema.
Selecting a launch provides a breakdown of its individual steps and any errors or warnings that occurred during it:
From this detail view, you can view the timestamp and other details for each step in the launch process, including any schema checks that failed. You can also view the launch's associated supergraph schema (or any build errors if composition failed).
A launch encapsulates the following steps for a supergraph: