Function getOperationASTFacts

Utilities useful for language services across runtimes

getOperationASTFacts(
documentAST: DocumentNode,
schema?: GraphQLSchema | null,
): OperationASTFacts
extract all operation nodes, and if schema is present, variable definitions, in a map
Parameters
- documentAST: DocumentNode
  {DocumentNode} a graphql-js compatible AST node
- Optionalschema: GraphQLSchema | null
  {GraphQLSchema} optional schema
Returns OperationASTFacts
Example
```
 const { variablesToType, operations } = getOperationASTFacts(
   parse('documentString'),
 );
 operations.forEach(op => {
   console.log(op.name, op.operation, op.loc);
 });
  Object.entries(variablesToType).forEach(([variableName, type]) => {
   console.log(variableName, type);
 });
```
- Defined in packages/graphql-language-service/src/utils/getOperationFacts.ts:43