github.com/djarvur/go-swagger@v0.18.0/examples/tutorials/custom-server/cmd/greeter/main.go (about)

     1  package main
     2  
     3  import (
     4  	"flag"
     5  	"fmt"
     6  	"log"
     7  
     8  	"github.com/go-openapi/loads"
     9  	"github.com/go-openapi/runtime/middleware"
    10  	"github.com/go-openapi/swag"
    11  
    12  	"github.com/go-swagger/go-swagger/examples/tutorials/custom-server/gen/restapi"
    13  	"github.com/go-swagger/go-swagger/examples/tutorials/custom-server/gen/restapi/operations"
    14  )
    15  
    16  var portFlag = flag.Int("port", 3000, "Port to run this service on")
    17  
    18  func main() {
    19  	// load embedded swagger file
    20  	swaggerSpec, err := loads.Analyzed(restapi.SwaggerJSON, "")
    21  	if err != nil {
    22  		log.Fatalln(err)
    23  	}
    24  
    25  	// create new service API
    26  	api := operations.NewGreeterAPI(swaggerSpec)
    27  	server := restapi.NewServer(api)
    28  	defer func() {
    29  		_ = server.Shutdown()
    30  	}()
    31  
    32  	// parse flags
    33  	flag.Parse()
    34  	// set the port this service will be run on
    35  	server.Port = *portFlag
    36  
    37  	// GetGreetingHandler greets the given name,
    38  	// in case the name is not given, it will default to World
    39  	api.GetGreetingHandler = operations.GetGreetingHandlerFunc(
    40  		func(params operations.GetGreetingParams) middleware.Responder {
    41  			name := swag.StringValue(params.Name)
    42  			if name == "" {
    43  				name = "World"
    44  			}
    45  
    46  			greeting := fmt.Sprintf("Hello, %s!", name)
    47  			return operations.NewGetGreetingOK().WithPayload(greeting)
    48  		})
    49  
    50  	// serve API
    51  	if err := server.Serve(); err != nil {
    52  		log.Fatalln(err)
    53  	}
    54  }