Create environment

> ### Approval settings > > You cannot configure approval settings when you create a new environment. Use [Update environment](https://launchdarkly.com/docs/api/environments/patch-environment) to update approval settings. > > The `approvalSettings` and `resourceApprovalSettings` keys are only returned when the [approvals](https://launchdarkly.com/docs/home/releases/approvals/) feature is enabled. Create a new environment in a specified project with a given name, key, swatch color, and default TTL.