How to export schema to a file

[bkstorm]

Hi everyone.
Is any way to export schema to .graphql or json file?
Here is the URL of graphql requests: http://mywebsite.com/index.php?graphql
I try to run: gq http://mywebsite.com/index.php?graphql --introspect > schema.graphql but it throws an exception:

GraphQL error: GraphQL introspection is not allowed, but the query contained __schema or __type

[bkstorm]

Just enable public introspection in Setting :D

[jasonbahl]

@bkstorm you can also use WP CLI with the command wp graphql generate-static-schema

[bkstorm]

@jasonbahl I'm using graphql code generator to generate react apollo hooks, but it throws Syntax Error: Unexpected Name "TermNode" error, I check the schema.graphql, everything seems to be OK. Do you know why?
https://imgur.com/FpnBYPg