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server.go
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server.go
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package main
import (
"context"
"log"
"net/http"
"os"
"github.com/99designs/gqlgen/graphql/handler/extension"
_ "github.com/go-sql-driver/mysql"
"github.com/taxio/gqlgen-ent-todo/graph/loader"
"entgo.io/ent/dialect/sql"
"github.com/99designs/gqlgen/graphql/handler"
"github.com/99designs/gqlgen/graphql/playground"
"github.com/taxio/gqlgen-ent-todo/ent"
"github.com/taxio/gqlgen-ent-todo/graph"
"github.com/taxio/gqlgen-ent-todo/graph/resolver"
)
const defaultPort = "8080"
func main() {
if err := run(context.Background()); err != nil {
log.Fatal(err)
}
}
func run(_ context.Context) error {
port := os.Getenv("PORT")
if port == "" {
port = defaultPort
}
db, err := sql.Open("mysql", os.Getenv("DATABASE_URL"))
if err != nil {
return err
}
entClient := ent.NewClient(ent.Driver(db))
defer entClient.Close()
ldrs := loader.NewLoaders(entClient)
srv := handler.NewDefaultServer(graph.NewExecutableSchema(graph.Config{Resolvers: resolver.NewResolver(entClient)}))
srv.Use(extension.Introspection{})
http.Handle("/", playground.Handler("GraphQL playground", "/query"))
http.Handle("/query", loader.Middleware(ldrs, srv))
log.Printf("connect to http://localhost:%s/ for GraphQL playground", port)
return http.ListenAndServe(":"+port, nil)
}