Metodi alternativi per aggiungere Firebase al progetto JavaScript
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Per la maggior parte delle app web Firebase, ti consigliamo vivamente di utilizzare
l'SDK tramite npm.
Tuttavia, per gli utenti con requisiti speciali, Firebase offre modi alternativi per aggiungere l'SDK.
Questa pagina fornisce istruzioni di configurazione dettagliate per questi metodi alternativi:
CDN (Content Delivery Network)
npm per le app Node.js
Utilizzando questi metodi, puoi aggiungere alla tua app una qualsiasi delle
librerie disponibili.
Dalla CDN
Puoi configurare l'importazione parziale dell'SDK FirebaseJavaScript e caricare solo i
prodotti Firebase di cui hai bisogno. Firebase archivia ogni libreria dell'SDK
FirebaseJavaScript sulla nostra CDN (Content Delivery Network) globale.
Per includere solo prodotti Firebase specifici
(ad esempio Authentication e Cloud Firestore), aggiungi il seguente
script in fondo al tag <body>, ma prima di utilizzare qualsiasi
servizio Firebase:
<body>
<!--InsertthisscriptatthebottomoftheHTML,butbeforeyouuseanyFirebaseservices-->
<scripttype="module">
import{initializeApp}from'https://www.gstatic.com/firebasejs/12.2.1/firebase-app.js'// If you enabled Analytics in your project, add the Firebase SDK for Google Analyticsimport{getAnalytics}from'https://www.gstatic.com/firebasejs/12.2.1/firebase-analytics.js'// Add Firebase products that you want to useimport{getAuth}from'https://www.gstatic.com/firebasejs/12.2.1/firebase-auth.js'import{getFirestore}from'https://www.gstatic.com/firebasejs/12.2.1/firebase-firestore.js'</script>
</body>
Aggiungi l'oggetto di configurazione Firebase e poi inizializza Firebase nella tua app:
<body>
<scripttype="module">
// ...// TODO: Replace the following with your app's Firebase configurationconstfirebaseConfig={// ...};// Initialize Firebaseconstapp=initializeApp(firebaseConfig);</script>
</body>
App Node.js
Installa l'SDK FirebaseJavaScript:
Se non hai ancora un file package.json, creane uno eseguendo il seguente comando dalla radice del progetto JavaScript:
npm init
Installa il pacchetto npm firebase e salvalo nel file
package.json eseguendo:
npm install --save firebase@12.2.1
Utilizza una delle seguenti opzioni per utilizzare il modulo Firebase nella tua app:
// Firebase App (the core Firebase SDK) is always required and// must be listed before other Firebase SDKsvarfirebase=require("firebase/app");// Add the Firebase products that you want to userequire("firebase/auth");require("firebase/firestore");
Includi l'intero SDK FirebaseJavaScript, anziché
i singoli SDK
(non consigliato per le app di produzione)
varfirebase=require("firebase");
Puoi utilizzare la sintassi ESM per i moduli import
// Firebase App (the core Firebase SDK) is always required and// must be listed before other Firebase SDKsimportfirebasefrom"firebase/app";// Add the Firebase services that you want to useimport"firebase/auth";import"firebase/firestore";
Includi l'intero SDK FirebaseJavaScript, anziché
i singoli SDK
(non consigliato per le app di produzione)
importfirebasefrom"firebase";
Aggiungi l'oggetto di configurazione Firebase e poi inizializza Firebase nella tua app:
import{initializeApp}from'firebase/app';// TODO: Replace the following with your app's Firebase configurationconstfirebaseConfig={//...};// Initialize Firebaseconstapp=initializeApp(firebaseConfig);
[null,null,["Ultimo aggiornamento 2025-08-31 UTC."],[],[],null,["\u003cbr /\u003e\n\nFor most Firebase web apps we strongly recommend using\n[the SDK via npm](/docs/web/setup).\nHowever, for users with special requirements, Firebase provides alternative\n[ways to add the SDK](/docs/web/learn-more#ways-to-add-web-sdks).\nThis page provides detailed setup instructions for these alternative methods:\n\n- CDN (content delivery network)\n- npm for Node.js apps\n\nUsing these methods, you can add any of the\n[available libraries](/docs/web/learn-more#available-libraries)\nto your app. \n\nFrom the CDN\n\nYou can configure partial import of the Firebase JavaScript SDK and only load the\nFirebase products that you need. Firebase stores each library of the\nFirebase JavaScript SDK on our global CDN (content delivery network).\n\n1. To include only [specific Firebase products](/docs/web/learn-more#libraries-cdn)\n (for example, Authentication and Cloud Firestore), add the following\n script to the bottom of your `\u003cbody\u003e` tag, but before you use any\n Firebase services:\n\n ```javascript\n \u003cbody\u003e\n \u003c!-- Insert this script at the bottom of the HTML, but before you use any Firebase services --\u003e\n \u003cscript type=\"module\"\u003e\n import { initializeApp } from 'https://www.gstatic.com/firebasejs/12.2.1/firebase-app.js'\n\n // If you enabled Analytics in your project, add the Firebase SDK for Google Analytics\n import { getAnalytics } from 'https://www.gstatic.com/firebasejs/12.2.1/firebase-analytics.js'\n\n // Add Firebase products that you want to use\n import { getAuth } from 'https://www.gstatic.com/firebasejs/12.2.1/firebase-auth.js'\n import { getFirestore } from 'https://www.gstatic.com/firebasejs/12.2.1/firebase-firestore.js'\n \u003c/script\u003e\n \u003c/body\u003e\n ```\n | You can optionally [delay loading of Firebase SDKs](/docs/web/learn-more#delay-sdks-cdn) until the entire page has loaded.\n2. Add your Firebase configuration object, and then initialize Firebase in\n your app:\n\n ```javascript\n \u003cbody\u003e\n \u003cscript type=\"module\"\u003e\n // ...\n\n // TODO: Replace the following with your app's /docs/web/learn-more#config-object\n const firebaseConfig = {\n // ...\n };\n\n // Initialize Firebase\n const app = initializeApp(firebaseConfig);\n \u003c/script\u003e\n \u003c/body\u003e\n ```\n\nNode.js apps**Caution:** The following instructions are for using the Firebase JavaScript SDK as a client for end-user access (for example, in a Node.js desktop or IoT application). To set up administrative access from privileged environments (such as servers), [set up the Firebase Admin SDK](/docs/admin/setup) instead.\n\n1. Install the Firebase JavaScript SDK:\n\n 1. If you don't already have a `package.json` file, create one by\n running the following command from the root of your JavaScript\n project:\n\n ```\n npm init\n ```\n 2. Install the `firebase` npm package and save it to your\n `package.json` file by running:\n\n ```\n npm install --save firebase@12.2.1\n ```\n2. Use one of the following options to use the Firebase module in your app:\n\n - **You can `require` modules from any JavaScript file**\n\n To include only [specific Firebase products](/docs/web/learn-more#libraries-nodejs)\n (like Authentication and Cloud Firestore): \n\n // Firebase App (the core Firebase SDK) is always required and\n // must be listed before other Firebase SDKs\n var firebase = require(\"firebase/app\");\n\n // Add the Firebase products that you want to use\n require(\"firebase/auth\");\n require(\"firebase/firestore\");\n\n Include the entire Firebase JavaScript SDK, rather\n than individual SDKs\n *(not recommended for production apps)*\n | Loading the entire SDK is not efficient for production web apps. \n Use this option for development purposes only. \n\n ```javascript\n var firebase = require(\"firebase\");\n ```\n\n \u003cbr /\u003e\n\n - **You can use ESM syntax to `import` modules**\n\n To include only [specific Firebase products](/docs/web/learn-more#libraries-nodejs)\n (like Authentication and Cloud Firestore): \n\n // Firebase App (the core Firebase SDK) is always required and\n // must be listed before other Firebase SDKs\n import firebase from \"firebase/app\";\n\n // Add the Firebase services that you want to use\n import \"firebase/auth\";\n import \"firebase/firestore\";\n\n Include the entire Firebase JavaScript SDK, rather\n than individual SDKs\n *(not recommended for production apps)*\n | Loading the entire SDK is not efficient for production web apps. \n Use this option for development purposes only. \n\n ```python\n import firebase from \"firebase\";\n ```\n3. Add your Firebase configuration object, and then initialize Firebase in\n your app:\n\n ```javascript\n import { initializeApp } from 'firebase/app';\n\n // TODO: Replace the following with your app's /docs/web/learn-more#config-object\n const firebaseConfig = {\n //...\n };\n\n // Initialize Firebase\n const app = initializeApp(firebaseConfig);\n ```"]]