Promote an environment request
Approves an environment request and starts provisioning the new FlowForma app. Requires the target SiteCollection (which must belong to your tenant) in the body, and username, password, and settingsID as query parameters.
Authorizations
Azure AD app-only access token. Obtain it from GET /v1/oauthToken and send it as the Authorization: Bearer {token} header.
Path Parameters
Environment request ID.
Query Parameters
Username used to provision the new app.
Password for the provisioning account.
Governance settings ID to apply.
Body
Supply either a SecurityTemplateID or both AdminUsersStr and GenericUsersStr. SiteCollection must belong to your tenant.
ID of the environment request being promoted.
Target site collection URL.
Environment type.
Sandbox, UAT, Production, NA Response
Successful operation
Environment type.
Sandbox, UAT, Production, NA Request lifecycle status.
AwaitingApproval, Accepted, NotAccepted, Processing, Completed, Failed 
