What is Object Type in GraphQL?
- The main purpose of using the object type is to create an object that will fetch a set of data from the service. In other words, the main purpose of the object type is to create the structure for returning a certain set of data from a service or API.
- The returned data can be of any data type like String, Int, boolean, or other object type as well.
- The keyword “type” is used to define object type in GraphQL.
- Service consists of a huge amount of data and in this case, if we just want to retrieve some set of data that too with one GraphQL call then this object type is very helpful in this case.
For example, the Service consists of around 20 data items about students. If a teacher wants to fetch the data related to a certain data item then we can create an object type and mention the required data items to be returned from the service.
Object Types and Fields in GraphQL Schema
GraphQL is a query language designed to provide a more efficient and flexible alternative to traditional REST APIs. One of its key features is the ability to define Object Types and Fields, which allow developers to structure the data they want to fetch from a server.
Understanding how to create Object Types and Fields is fundamental to building GraphQL schemas and querying data effectively. In this article, We will understand what is object types, fields, and how to create them in GraphQL schema with the help of examples and so on.