38 lines
1.2 KiB
Plaintext
38 lines
1.2 KiB
Plaintext
/**
|
|
* Copyright (c) 2015-present, Facebook, Inc.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*
|
|
* @flow strict
|
|
*/
|
|
|
|
import invariant from '../jsutils/invariant';
|
|
import { getIntrospectionQuery } from './introspectionQuery';
|
|
import type { GraphQLSchema } from '../type/schema';
|
|
import { execute } from '../execution/execute';
|
|
import { parse } from '../language/parser';
|
|
import type {
|
|
IntrospectionQuery,
|
|
IntrospectionOptions,
|
|
} from './introspectionQuery';
|
|
|
|
/**
|
|
* Build an IntrospectionQuery from a GraphQLSchema
|
|
*
|
|
* IntrospectionQuery is useful for utilities that care about type and field
|
|
* relationships, but do not need to traverse through those relationships.
|
|
*
|
|
* This is the inverse of buildClientSchema. The primary use case is outside
|
|
* of the server context, for instance when doing schema comparisons.
|
|
*/
|
|
export function introspectionFromSchema(
|
|
schema: GraphQLSchema,
|
|
options?: IntrospectionOptions,
|
|
): IntrospectionQuery {
|
|
const queryAST = parse(getIntrospectionQuery(options));
|
|
const result = execute(schema, queryAST);
|
|
invariant(!result.then && !result.errors && result.data);
|
|
return (result.data: any);
|
|
}
|