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---
lang: en
title: 'API docs: graphql.graphqlserver.getresolverclasses'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
sidebar: lb4_sidebar
editurl: https://github.com/loopbackio/loopback-next/tree/master/extensions/graphql
permalink: /doc/en/lb4/apidocs.graphql.graphqlserver.getresolverclasses.html
---
<!-- Do not edit this file. It is automatically generated by API Documenter. -->
[Home](./index.md) > [@loopback/graphql](./graphql.md) > [GraphQLServer](./graphql.graphqlserver.md) > [getResolverClasses](./graphql.graphqlserver.getresolverclasses.md)
## GraphQLServer.getResolverClasses() method
Get a list of resolver classes
**Signature:**
```typescript
getResolverClasses(): Constructor<ResolverInterface<object>>[];
```
**Returns:**
[Constructor](./context.constructor.md)<!-- --><ResolverInterface<object>>\[\]