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Fast Launch lets your client-side application open a Junction feature without first asking your backend to create a dashboard URL. When Junction detects an existing compatible session, it routes directly to the requested feature. If it cannot reuse a session, it redirects to your session continuation URL, where your application creates a new dashboard URL. Use Fast Launch when:
  • you embed Junction features in iframes; and
  • users often move between parts of your app that embed different Junction features.

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Fast Launch URL

Use your partner integration slug as the subdomain. 
https://{integration_slug}.ehr.junction.com/auth/launch
You can identify the target member and team with either partner references or Junction IDs. 
https://{integration_slug}.ehr.junction.com/auth/launch
  ?integration_member_id={integration_member_id}
  &integration_team_id={integration_team_id}
  &modality={modality}
  &feature={feature}
  &environment={environment}
ParameterDescription
integration_member_idYour unique reference for the member. Mutually exclusive with member_id.
member_idJunction-issued member ID. Mutually exclusive with integration_member_id.
integration_team_idYour unique reference for the team. Mutually exclusive with team_id.
team_idJunction-issued team ID. Mutually exclusive with integration_team_id.
modalityfeature_embed or link_out.
featureSupported feature slug, such as order_creation or team_config.
environmentsandbox or production.

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Feature Embed flow

For Link Out, open the same Fast Launch URL in a top-level browser context. If Junction can reuse the session, it routes immediately. Otherwise, it redirects the browser to your session continuation URL before returning to Junction with a new post-authorization URL.

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Implementation notes

  • Keep the feature, modality, and environment values in your own allowlist.
  • Prefer partner references (integration_member_id and integration_team_id) when they are already available in your client runtime.
  • Your session continuation endpoint must validate the current partner session before creating the dashboard URL.