70 lines
1.6 KiB
Go
70 lines
1.6 KiB
Go
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package gql
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import (
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"context"
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"fmt"
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"net/http"
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"cosmossdk.io/log"
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"github.com/99designs/gqlgen/graphql/handler"
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"github.com/go-chi/chi/v5"
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"github.com/rs/cors"
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"github.com/spf13/viper"
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"github.com/cosmos/cosmos-sdk/client"
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)
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// Server configures and starts the GQL server.
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func Server(ctx context.Context, clientCtx client.Context, logger log.Logger) error {
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if !viper.GetBool("gql-server") {
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return nil
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}
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router := chi.NewRouter()
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// Add CORS middleware around every request
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// See https://github.com/rs/cors for full option listing
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router.Use(cors.New(cors.Options{
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AllowedOrigins: []string{"*"},
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Debug: false,
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}).Handler)
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logFile := viper.GetString("log-file")
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port := viper.GetString("gql-port")
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srv := handler.NewDefaultServer(NewExecutableSchema(Config{Resolvers: &Resolver{
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ctx: clientCtx,
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logFile: logFile,
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}}))
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router.Handle("/", PlaygroundHandler("/api"))
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if viper.GetBool("gql-playground") {
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apiBase := viper.GetString("gql-playground-api-base")
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router.Handle("/webui", PlaygroundHandler(apiBase+"/api"))
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router.Handle("/console", PlaygroundHandler(apiBase+"/graphql"))
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}
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router.Handle("/api", srv)
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router.Handle("/graphql", srv)
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errCh := make(chan error)
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go func() {
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logger.Info(fmt.Sprintf("Connect to GraphQL playground url: http://localhost:%s", port))
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errCh <- http.ListenAndServe(":"+port, router)
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}()
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select {
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case <-ctx.Done():
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// Gracefully stop the GQL server.
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logger.Info("Stopping GQL server...")
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return nil
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case err := <-errCh:
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logger.Error(fmt.Sprintf("Failed to start GQL server: %s", err))
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return err
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}
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}
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