The GraphQLResolveInfo object contains data specific to the current operation and resolver, as well as global data that applies to the entire GraphQL schema:

• fieldName — the name of the field being resolved for the current resolver
• fieldNodes — a representation of the selection set of the GraphQL operation
• returnType — what is the type of the field currently being resolved?
• parentType — what is the type of the parent object?
• path — what fields were traversed to reach the current field being resolved
• schema — the executable GraphQLSchema object, for the entire GraphQL schema, not just the type being resolved
• fragments — any fragments used in the query
• rootValue — the rootValue argument passed to the GraphQL execution function
• operation — the Abstract Syntax Tree (AST) of the GraphQL operation
• variableValues —*the values of any GraphQL variables used in the operation (Field list taken from: GraphQL ResolveInfo Deep Dive. Building Efficient GraphQL Resolvers By… | by William Lyon | GRANDstack - GraphQL, React, Apollo, Neo4j Database)

Can use this data to add logging to middleware to inspect resolvers.