Ignore new lob test utils

.gitignore

@@ -4,6 +4,10 @@ cmd/geocode-test/geocode-test
 cmd/passwordgen/passwordgen
 districts/
 flogo.log
+lob/cmd/letter-create/letter-create
+lob/cmd/letter-list/letter-list
+lob/cmd/address-create/address-create
+lob/cmd/address-list/address-list
 nidus-sync
 nidus-sync.log
 node_modules/

lob/cmd/letter-list/main.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+	"context"
+	"log"
+	"os"
+
+	"github.com/Gleipnir-Technology/nidus-sync/lob"
+)
+
+func main() {
+	key := os.Getenv("LOB_API_KEY")
+	if key == "" {
+		log.Println("LOB_API_KEY is empty")
+		os.Exit(1)
+	}
+
+	client := lob.NewLob(key)
+	ctx := context.TODO()
+	letters, err := client.LetterList(ctx)
+	if err != nil {
+		log.Printf("err: %v", err)
+		os.Exit(2)
+	}
+
+	for _, letter := range letters {
+		log.Printf("%s %s %s", letter.ID, letter.To.ID, letter.From.ID)
+	}
+}