Sets defaults for configuration provided via API, and assigns configu…

…ration to global variable.

main.go

@@ -30,15 +30,21 @@ func main() {
 // API endpoint to set the configuration options
 func SetConfig(ctx *gin.Context) {
 	// Validate input
-	var config Configuration
+	var config Configuration // temporary variable required for proper validation
 	if ctx.BindJSON(&config) != nil {
 		// Invalid JSON sent
 		ctx.JSON(http.StatusBadRequest, gin.H{
-			"message": "invalid JSON",
+			"message": "invalid JSON data",
 		})
 		return
 	}
 
+	// Set defaults
+	SetDefaults(&config)
+
+	// Assign to global configuration object
+	configuration = config
+
 	// Send response
 	ctx.JSON(http.StatusOK, gin.H{
 		"message": "configuration saved",

racer.go

@@ -39,7 +39,6 @@ func (err *RedirectError) Error() string {
 // Count: 100
 // Verbose: false
 // Proxy: *none*
-// Targets: *none*
 type Configuration struct {
 	Count   int      `json:"count"`
 	Verbose bool     `json:"verbose"`
@@ -223,7 +222,7 @@ func getConfig(location string) (Configuration, error) {
 	}
 
 	// Set default values
-	config = setDefaults(config)
+	SetDefaults(&config)
 
 	if len(config.Targets) == 0 {
 		// No targets specified
@@ -233,16 +232,14 @@ func getConfig(location string) (Configuration, error) {
 	return config, nil
 }
 
-// Function setDefaults sets the default options, if not present in the configuration file.
+// Function SetDefaults sets the default options, if not present in the configuration file.
 // Redirects and verbose are both false, as the default value of a boolean.
-func setDefaults(config Configuration) Configuration {
+func SetDefaults(config *Configuration) {
 	// Count
 	if config.Count == 0 {
 		// Set to default value of 100
 		config.Count = 100
 	}
-
-	return config
 }
 
 // Function sendRequests takes care of sending the requests to the target concurrently.