docs: add swagger auto generator

* to generate docs, run `make docs`
* endpoint /swagger/

cmd/service/api.go

@@ -5,11 +5,13 @@ import (
 
 	"github.com/VictoriaMetrics/metrics"
 	"github.com/go-playground/validator/v10"
+	_ "github.com/grassrootseconomics/cic-custodial/docs"
 	"github.com/grassrootseconomics/cic-custodial/internal/api"
 	"github.com/grassrootseconomics/cic-custodial/internal/custodial"
 	"github.com/grassrootseconomics/cic-custodial/pkg/util"
 	"github.com/labstack/echo/v4"
 	"github.com/labstack/echo/v4/middleware"
+	echoSwagger "github.com/swaggo/echo-swagger"
 )
 
 const (
@@ -39,6 +41,10 @@ func initApiServer(custodialContainer *custodial.Custodial) *echo.Echo {
 		})
 	}
 
+	if ko.Bool("service.docs") {
+		server.GET("/docs/*", echoSwagger.WrapHandler)
+	}
+
 	apiRoute := server.Group("/api", systemGlobalLock(custodialContainer))
 
 	apiRoute.POST("/account/create", api.HandleAccountCreate(custodialContainer))