config/routes/nelmio_api_doc.yaml
# Requires the Asset component and the Twig bundle
app.swagger_ui:
path: /api/doc
methods: GET
defaults: { _controller: nelmio_api_doc.controller.swagger_ui }
# To expose your documentation as JSON
#app.swagger:
# path: /api/doc.json
# methods: GET
# defaults: { _controller: nelmio_api_doc.controller.swagger }