Why am I unable to introspect with Apollo Router?

By default, the Apollo Router does not resolve introspection queries. This default also applies to Apollo Router images in our repository. As described in our dev docs, you enable introspection in your router's router.yaml file:

# Do not enable introspection in production!
supergraph:
  introspection: true

If you're configuring an image, override the base image's configuration file with the --mount command. You can find more information about overriding the Router's configuration with Docker in our dev docs.