# GraphQLServer **GraphQLServer** exposes your data as a GraphQL API. Client applications can connect to your GraphQL server to query your data. *** ## Properties ### Schema The GraphQL schema for your GraphQL server. Click on the **\[...]** icon to open the **Schema editor**. An event is automatically created for each query that is included in the schema, as shown below:

You can add any Linx functions to the events to handle the requests sent to your GraphQL service. ### Base URL The URL where the GraphQL server will be published, e.g. `http://localhost:8024/MyGraphQLServer`. ### Show server errors Show details for internal server errors in HTTP responses. ### Max connections The maximum number of concurrent connections to accept. ### Max request size The maximum allowed size of any request body in megabytes. ### CORS origins A list of allowed origin URLs for cross-origin resource sharing. ### Scheme The security scheme to use. ### Before operation Show the Before-Operation event handler. This handler will execute before the execution of any operation. ### After operation Show the After-Operation event handler. This handler will execute after the execution of any operation. *** ## Links [graphql.org](https://graphql.org/) [howtographql.com](https://www.howtographql.com/) [towardsdatascience.com](https://towardsdatascience.com/learning-graphql-4e913f12640d)