Add gitignore and fixes

.gitignore

@@ -0,0 +1 @@
+node_modules

main.js

@@ -134,13 +134,17 @@ async function main(){
 
     const credentials = `Basic ` + Buffer.from(`${user}:${passw}`).toString('base64');
 
-    let response = await fetch(urlOrganizations, {
-        method: "GET",
-        headers: {
-            Authorization: credentials
-        }
-    });
-
+    try {
+        var response = await fetch(urlOrganizations, {
+            method: "GET",
+            headers: {
+                Authorization: credentials
+            }
+        });
+    } catch (notfound) {
+        console.error(`${error}Server '${config.grafanaUrl}' not found`.red);
+        process.exit(1);
+    };
     let AllOrganizations = await response.json();
 
     if (AllOrganizations.message==='invalid username or password') {
@@ -262,6 +266,12 @@ async function main(){
 
     console.log(colors.green.bold(`-------- Have been found ${numberOfObjects} results in ${totalDashboards} dashboards -------\n`));
 
+    if (!response) {
+        console.log(`${error}The server don't exists`);
+        process.exit(1);
+    }
+
     process.exit();
+
 }
 main();