Add support for extra header

Signed-off-by: Bryan Frimin <bryan@getprobo.com>

pkg/probod/api_config.go

@@ -20,7 +20,8 @@ type (
 	}
 
 	apiConfig struct {
-		Addr string     `json:"addr"`
-		Cors corsConfig `json:"cors"`
+		Addr              string            `json:"addr"`
+		Cors              corsConfig        `json:"cors"`
+		ExtraHeaderFields map[string]string `json:"extra-header-fields"`
 	}
 )

pkg/probod/probod.go

@@ -224,6 +224,7 @@ func (impl *Implm) Run(
 	serverHandler, err := server.NewServer(
 		server.Config{
 			AllowedOrigins:    impl.cfg.Api.Cors.AllowedOrigins,
+			ExtraHeaderFields: impl.cfg.Api.ExtraHeaderFields,
 			Probo:             proboService,
 			Usrmgr:            usrmgrService,
 			ConnectorRegistry: defaultConnectorRegistry,