Autenticare e autorizzare come utente di Google Chat

Java

• JDK 1.7 o versioni successive
• Lo strumento di gestione dei pacchetti Maven

• Un progetto Maven inizializzato. Per inizializzare un nuovo progetto, esegui questo comando nell'interfaccia a riga di comando:

  mvn archetype:generate -DgroupId=com.google.chat.app.authsample -DartifactId=auth-sample-app -DarchetypeArtifactId=maven-archetype-quickstart -DarchetypeVersion=1.4 -DinteractiveMode=false
  

Python

• Python 3.6 o versioni successive
• Lo strumento di gestione dei pacchetti pip

Node.js

• Node.js
• Lo strumento di gestione dei pacchetti npm

• Un progetto Node.js inizializzato. Per inizializzare un nuovo progetto, crea e passa a una nuova cartella, quindi esegui questo comando nell'interfaccia a riga di comando:

  npm init
  

Apps Script

• Un progetto Apps Script collegato al tuo progetto Google Cloud. Per inizializzare un progetto Apps Script, consulta la guida rapida all'app Google Apps Script Chat.

Java

Per aggiungere le librerie client di Google e altre dipendenze necessarie al tuo progetto Maven, modifica il file pom.xml nella directory del progetto e aggiungi le seguenti dipendenze:

<dependencies>
  <!-- ... existing dependencies ... -->
  <dependency>
    <groupId>com.google.apis</groupId>
    <artifactId>google-api-services-chat</artifactId>
    <version>v1-rev20230905-2.0.0</version>
  </dependency>
  <dependency>
    <groupId>com.google.auth</groupId>
    <artifactId>google-auth-library-oauth2-http</artifactId>
    <version>1.19.0</version>
  </dependency>
  <dependency>
    <groupId>com.google.oauth-client</groupId>
    <artifactId>google-oauth-client-jetty</artifactId>
    <version>1.34.1</version>
  </dependency>
  <dependency>
      <groupId>com.google.code.gson</groupId>
      <artifactId>gson</artifactId>
      <version>2.10.1</version>
  </dependency>
</dependencies>

Python

Se non hai già installato le librerie client di Google per Python, esegui questo comando nell'interfaccia a riga di comando:

pip3 install --upgrade google-api-python-client google-auth-oauthlib

Node.js

Per aggiungere le librerie client di Google e altre dipendenze necessarie al tuo progetto Node.js, passa alla directory del progetto ed esegui questo comando nell'interfaccia a riga di comando:

npm install "@googleapis/chat" open server-destroy

Apps Script

In questo esempio viene utilizzato il servizio Chat avanzato per chiamare l'API Google Chat. Per attivare il servizio per il tuo progetto Apps Script:

1. A sinistra, fai clic su Editor code.
2. A sinistra, accanto a Servizi, fai clic su Aggiungi un servizio add.
3. Seleziona API Google Chat.
4. In Versione, seleziona v1.
5. Fai clic su Aggiungi.

Java

1. Nella directory del progetto, apri il file src/main/java/com/google/chat/app/authsample/App.java.

2. Sostituisci i contenuti in App.java con il seguente codice:

   package com.google.chat.app.authsample;
   
   import com.google.api.client.auth.oauth2.Credential;
   import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp;
   import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver;
   import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
   import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
   import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
   import com.google.api.client.http.HttpTransport;
   import com.google.api.client.json.JsonFactory;
   import com.google.api.client.json.gson.GsonFactory;
   import com.google.api.client.util.store.FileDataStoreFactory;
   import com.google.api.services.chat.v1.HangoutsChat;
   import com.google.api.services.chat.v1.model.Space;
   
   import java.io.InputStreamReader;
   import java.util.Collection;
   import java.util.Collections;
   
   /**
    * Authenticates with Chat API via user credentials, then creates a Chat space.
    */
   public class App {
       // Application OAuth credentials.
       private static final String KEYS_RESOURCE_URI = "/client_secrets.json";
   
       // Define your app's authorization scopes.
       private static final Collection<String> SCOPES =
           Collections.singleton("https://www.googleapis.com/auth/chat.spaces.create");
   
       // Directory to store user credentials.
       private static final java.io.File DATA_STORE_DIR =
           new java.io.File(System.getProperty("user.home"), ".store/auth-sample-app");
   
       // Global instance of the JSON factory.
       private static final JsonFactory JSON_FACTORY = GsonFactory.getDefaultInstance();
   
       // Global instance of the HTTP transport.
       private static HttpTransport httpTransport;
   
       // Global instance of the DataStoreFactory. The best practice is to make it a single
       // globally shared instance across your application.
       private static FileDataStoreFactory dataStoreFactory;
   
       public static void main( String[] args ) {
           try {
               // Run app.
               httpTransport = GoogleNetHttpTransport.newTrustedTransport();
               dataStoreFactory = new FileDataStoreFactory(DATA_STORE_DIR);
               Credential userCredential = authorize();
               Space response = App.createChatSpace(userCredential);
               // Print details about the created space.
               System.out.println(response);
           } catch (Exception e) {
               e.printStackTrace();
           }
       }
   
       /**
        * Authorizes the installed application to access user's protected data.
        */
       private static Credential authorize() throws Exception {
           // Load client secrets.
           GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY,
               new InputStreamReader(App.class.getResourceAsStream("/client_secrets.json")));
           // Set up authorization code flow.
           GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
               httpTransport, JSON_FACTORY, clientSecrets, SCOPES)
               .setDataStoreFactory(dataStoreFactory)
               .build();
           // Authorize.
           return new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver()).authorize("user");
       }
   
       /**
        * Creates a Chat space.
        */
       private static Space createChatSpace(Credential userCredential) throws Exception {
           // Build the Chat API client and authenticate with the user account.
           HangoutsChat chatService = new HangoutsChat.Builder(
               httpTransport, JSON_FACTORY, userCredential)
               .setApplicationName("auth-sample-app")
               .build();
   
           // Create a Chat space.
           Space space = new Space()
               // To create a named space, set spaceType to SPACE.
               .setSpaceType("SPACE")
               // The user-visible name of the space.
               .setDisplayName("API-made");
           return chatService.spaces().create(space).execute();
       }
   }
   

3. Crea una nuova sottodirectory denominata resources all'interno della directory del progetto.

4. Copia il file client_secrets.json nella sottodirectory resources.

5. Per configurare Maven in modo da includere il file client secret nel pacchetto del progetto, modifica il file pom.xml nella directory del progetto e aggiungi la seguente configurazione alla sezione <build>:

   <build>
     <!-- ... existing configurations ... -->
     <resources>
       <resource>
         <directory>resources</directory>
       </resource>
     </resources>
   </build>
   

6. Per configurare Maven in modo che includa le dipendenze nel pacchetto di progetto e per eseguire la classe principale della tua applicazione, modifica il file pom.xml nella directory del progetto e aggiungi la seguente configurazione alla sezione <plugins>:

   <plugins>
     <!-- ... existing configurations ... -->
     <plugin>
       <artifactId>maven-assembly-plugin</artifactId>
       <configuration>
         <archive>
           <manifest>
             <mainClass>com.google.chat.app.authsample.App</mainClass>
           </manifest>
         </archive>
         <descriptorRefs>
           <descriptorRef>jar-with-dependencies</descriptorRef>
         </descriptorRefs>
       </configuration>
     </plugin>
   </plugins>
   

Python

1. Salva il codice seguente in un file denominato chat_space_create_named.py nella stessa directory che contiene client_secrets.json:

   from google_auth_oauthlib.flow import InstalledAppFlow
   from googleapiclient.discovery import build
   
   # Define your app's authorization scopes.
   # When modifying these scopes, delete the file token.json, if it exists.
   SCOPES = ["https://www.googleapis.com/auth/chat.spaces.create"]
   
   def main():
     '''
     Authenticates with Chat API via user credentials,
     then creates a Chat space.
     '''
   
     flow = InstalledAppFlow.from_client_secrets_file(
                       'client_secrets.json', SCOPES)
     creds = flow.run_local_server()
   
     # Build a service endpoint for Chat API.
     service = build('chat', 'v1', credentials=creds)
   
     # Use the service endpoint to call Chat API.
     result = service.spaces().create(
   
       # Details about the space to create.
       body = {
   
         # To create a named space, set spaceType to SPACE.
         'spaceType': 'SPACE',
   
         # The user-visible name of the space.
         'displayName': 'API-made'
   
       }
   
     ).execute()
   
     # Prints details about the created space.
     print(result)
   
   if __name__ == '__main__':
     main()
   

Node.js

1. Salva il codice seguente in un file denominato chat_space_create_named.js nella stessa directory che contiene il progetto Node.js e client_secrets.json:

   const fs = require('fs');
   const path = require('path');
   const http = require('http');
   const url = require('url');
   const destroyer = require('server-destroy');
   
   const chat = require('@googleapis/chat');
   
   // Application OAuth credentials.
   const keys = require('./client_secrets.json').installed;
   
   // Define your app's authorization scopes.
   // When modifying these scopes, delete the file token.json, if it exists.
   const scopes = ["https://www.googleapis.com/auth/chat.spaces.create"];
   
   // Create a new OAuth2 client with the configured keys.
   const oauth2Client = new chat.auth.OAuth2(
     keys.client_id,
     keys.client_secret,
     'http://localhost:3000'
   );
   
   /**
    * Opens an HTTP server to accept the OAuth callback.
    * In this simple example, the only request to our webserver is to /?code=<code>.
    */
   async function authenticate(scopes) {
     const opn = (await import('open')).default;
   
     return new Promise((resolve, reject) => {
       // Generate the URL for authorization.
       const authorizeUrl = oauth2Client.generateAuthUrl({
         access_type: 'offline',
         scope: scopes.join(' '),
       });
       // Start the HTTP server to listen for the callback.
       const server = http
         .createServer(async (req, res) => {
           try {
             const qs = new url.URL(req.url, 'http://localhost:3000').searchParams;
             res.end('Authentication successful! Please return to the console.');
             server.destroy();
             const { tokens } = await oauth2Client.getToken(qs.get('code'));
             oauth2Client.credentials = tokens;
             resolve(oauth2Client);
           } catch (e) {
             reject(e);
           }
         })
         .listen(3000, () => {
           // Open the browser to the authorize URL to start the workflow.
           opn(authorizeUrl, { wait: false }).then(cp => cp.unref());
         });
       destroyer(server);
     });
   }
   
   /**
    * Authenticates with Chat API via user credentials, then creates a Chat space.
    */
   async function createSpace() {
     // Create the Chat API client and authenticate with the authorized user.
     const chatClient = await chat.chat({
       version: 'v1',
       auth: oauth2Client
     });
   
     // Call the Chat API to create a space.
     const result = await chatClient.spaces.create({
   
       // Details about the space to create.
       requestBody: {
   
         // To create a named space, set spaceType to SPACE.
         'spaceType': 'SPACE',
   
         // The user-visible name of the space.
         'displayName': 'API-made'
   
       }
   
     });
     return result;
   }
   
   // Authenticate the user, execute the function,
   // then print details about the created space.
   authenticate(scopes)
     .then(createSpace)
     .then(console.log);
   

Apps Script

1. Nell'editor di Apps Script, modifica il file appsscript.json e aggiungi l'ambito OAuth necessario per chiamare l'API:

     "oauthScopes": [
       "https://www.googleapis.com/auth/chat.spaces.create"
     ]
   

2. Salva il seguente codice in un file denominato ChatSpaceCreateNamed.gs nel tuo progetto Apps Script:

   /**
    * Authenticates with Chat API via user credentials, then creates a
    * Chat space.
    */
   function createSpace() {
     try {
       // Details about the space to create.
       // To create a named space, set spaceType to SPACE.
       // The user-visible name of the space is displayName.
       const space = {'displayName': 'API-made', 'spaceType': 'SPACE'};
   
       // Call Chat API with user credentials to create the space.
       const result = Chat.Spaces.create(space);
   
       // Log details about the created space.
       console.log(result);
     } catch (err) {
       // TODO (developer) - Handle exception
       console.log('Failed to create space with error %s', err.message);
     }
   }
   

Java

mvn compile assembly:single
java -jar target/auth-sample-app-1.0-SNAPSHOT-jar-with-dependencies.jar

Python

python3 chat_space_create_named.py

Node.js

node chat_space_create_named.js

Apps Script

Apri il file ChatSpaceCreateNamed.gs nell'editor di Apps Script e fai clic su Esegui.