HTTP GET Request
When we are using a HTTP GET request to execute a GraphQL query,
- The query is specified in the “query” string parameter.
- Query variables can be sent as JSON encoded string in an additional query parameter called “variables“.
- If our query contains multiple operations, then we can use OperationName as a query parameter to specify which operation to be executed.
GET method will be used when we are using Query in graphql to fetch data. Below is the GraphQL query format for “Query” or to retrieve data.
{
"[links] {
"[url]" , [description]"
}
}
The above request in GET will look the following,
http://[apiendpoint]/graphql?query={[links]{[url] , [description}}
Serving GraphQL over HTTP
HTTP or Hypertext Transfer Protocol, is the foundation of Web communication. Being a stateless protocol, each request from a client to the server is independent and doesn’t retain information about past requests. GraphQL is a query language for APIs and a runtime for executing those queries.
Unlike traditional REST APIs with fixed endpoints and predefined structures, GraphQL allows clients to request the specific data they need on the same endpoint.
One common way to serve GraphQL is over HTTP, providing an efficient and flexible means of communication between client and server. In this article, we’ll explore how we can use the HTTP protocol to serve GraphQL and how it differs from traditional RESTful approaches.