GraphQL GO

package main

import (
    "fmt"
    "github.com/graphql-go/graphql"
    "github.com/graphql-go/handler"
    Mocks "graphql/mocks"
    "graphql/models"
    "graphql/resolvers"
    "log"
    "net/http"
    "strings"
)

var rootQuery = graphql.NewObject(graphql.ObjectConfig{
    Name: "query",
    Fields: graphql.Fields{
        "users": &graphql.Field{
            Type: graphql.NewList(models.UserSchema),
            Args: graphql.FieldConfigArgument{
                "name": &graphql.ArgumentConfig{
                    Type: graphql.NewNonNull(graphql.String),
                    Description: "Some desc",
                },
            },
            Resolve: func(params graphql.ResolveParams) (interface{}, error){
                name := params.Args["name"].(string);
                filtered := resolvers.UserFilter(Mocks.Users(),func(v models.User){
                    return strings.Contains(v.Name, name).(bool);
                });
                return filtered,nil
            },
        },
    },
})

func main() {
    schema, err := graphql.NewSchema(graphql.SchemaConfig{
        Query:rootQuery,
    })

    if err != nil {
        log.Fatalf("failed to create new schema! Error: %v",err)
    }

    h := handler.New(&handler.Config{
        Schema: &schema,
        Pretty: true,
        GraphiQL: true,
    })
    http.Handle("/graphql", h);
    http.ListenAndServe(":9090",nil)
    fmt.Println("Server is running at port 9090")
}