Source file src/github.com/gorilla/mux/example_route_vars_test.go

Documentation: github.com/gorilla/mux

     1  package mux_test
     2  
     3  import (
     4  	"fmt"
     5  	"github.com/gorilla/mux"
     6  )
     7  
     8  // This example demonstrates building a dynamic URL using
     9  // required vars and values retrieve from another source
    10  func ExampleRoute_GetVarNames() {
    11  	r := mux.NewRouter()
    12  
    13  	route := r.Host("{domain}").
    14  		Path("/{group}/{item_id}").
    15  		Queries("some_data1", "{some_data1}").
    16  		Queries("some_data2_and_3", "{some_data2}.{some_data3}")
    17  
    18  	dataSource := func(key string) string {
    19  		return "my_value_for_" + key
    20  	}
    21  
    22  	varNames, _ := route.GetVarNames()
    23  
    24  	pairs := make([]string, 0, len(varNames)*2)
    25  
    26  	for _, varName := range varNames {
    27  		pairs = append(pairs, varName, dataSource(varName))
    28  	}
    29  
    30  	url, err := route.URL(pairs...)
    31  	if err != nil {
    32  		panic(err)
    33  	}
    34  	fmt.Println(url.String())
    35  }
    36  

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