Restores prewarm API

Author: grussorusso

internal/api/server.go

@@ -4,13 +4,14 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"github.com/serverledge-faas/serverledge/internal/metrics"
 	"log"
 	"net/http"
 	"os"
 	"os/signal"
 	"time"
 
+	"github.com/serverledge-faas/serverledge/internal/metrics"
+
 	"github.com/labstack/echo/v4"
 	"github.com/labstack/echo/v4/middleware"
 	"github.com/serverledge-faas/serverledge/internal/cache"
@@ -31,6 +32,7 @@ func StartAPIServer(e *echo.Echo) {
 	e.GET("/function", GetFunctions)
 	e.GET("/poll/:reqId", PollAsyncResult)
 	e.GET("/status", GetServerStatus)
+	e.POST("/prewarm", PrewarmFunction)
 
 	if config.GetBool(config.METRICS_ENABLED, false) {
 		e.GET("/metrics", func(c echo.Context) error {

internal/cli/cli.go

@@ -392,6 +392,11 @@ func ReadSourcesAsTar(srcPath string) ([]byte, error) {
 }
 
 func deleteFunction(cmd *cobra.Command, args []string) {
+	if len(funcName) < 1 {
+		fmt.Println("Missing function name for deletion.")
+		showHelpAndExit(cmd)
+	}
+
 	request := function.Function{Name: funcName}
 	requestBody, err := json.Marshal(request)
 	if err != nil {