Carica contenuti multimediali come file allegato
Mantieni tutto organizzato con le raccolte
Salva e classifica i contenuti in base alle tue preferenze.
Questa guida spiega come utilizzare il metodo upload
sulla risorsa Media
dell'API Google Chat per caricare contenuti multimediali (un file) su Google Chat e poi allegarli a un messaggio.
Quando l'utente invia un messaggio alla tua app, Google Chat invia un
MESSAGE
evento di interazione.
L'evento di interazione ricevuto dalla tua app include un corpo della richiesta, ovvero il
payload JSON che rappresenta l'evento di interazione, inclusi eventuali allegati. I dati
dell'allegato variano a seconda che l'allegato sia
un contenuto caricato (un file locale) o un file archiviato su Drive. La
risorsa Media
rappresenta un file caricato su Google Chat, come immagini, video e documenti.
La risorsa
Attachment
rappresenta un'istanza di contenuti multimediali, ovvero un file, allegato a un messaggio. La risorsa Attachment
include i metadati relativi all'allegato, ad esempio
la posizione in cui è salvato.
Prerequisiti
Caricare come allegato di un file
Per caricare contenuti multimediali e allegarli a un messaggio, passa quanto segue nella tua
richiesta:
- Specifica l'ambito di autorizzazione
chat.messages.create
o chat.messages
.
- Chiama i seguenti metodi di Google Chat:
- Per caricare il file, chiama il
metodo
upload
sulla risorsa Media
.
- Imposta
parent
sul nome dello spazio che ospita il file.
- In
body
(il corpo della richiesta), imposta filename
sul nome dell'allegato
del file caricato.
- Imposta
media_body
come istanza del file da caricare.
- Per creare un messaggio con il file caricato allegato, chiama il
metodo
create
sulla
risorsa Messages
.
Il seguente esempio carica un file immagine PNG e lo allega a un messaggio.
Python
- Nella directory di lavoro, crea un file denominato
chat_media_and_attachment_upload.py
.
Includi il seguente codice in chat_media_and_attachment_upload.py
:
from google_auth_oauthlib.flow import InstalledAppFlow
from googleapiclient.discovery import build
from googleapiclient.http import MediaFileUpload
# 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.messages.create"]
def main():
'''
Authenticates with Chat API via user credentials,
then uploads a file as media, creates a message, and
attaches the file to the message.
'''
# Authenticate with Google Workspace
# and get user authorization.
flow = InstalledAppFlow.from_client_secrets_file(
'credentials.json', SCOPES)
creds = flow.run_local_server()
# Build a service endpoint for Chat API.
service = build('chat', 'v1', credentials=creds)
# Upload a file to Google Chat.
media = MediaFileUpload('test_image.png', mimetype='image/png')
# Create a message and attach the uploaded file to it.
attachment_uploaded = service.media().upload(
# The space to upload the attachment in.
#
# Replace SPACE with a space name.
# Obtain the space name from the spaces resource of Chat API,
# or from a space's URL.
parent='spaces/SPACE',
# The filename of the attachment, including the file extension.
body={'filename': 'test_image.png'},
# Media resource of the attachment.
media_body=media
).execute()
print(attachment_uploaded)
# Create a Chat message with attachment.
result = service.spaces().messages().create(
# The space to create the message in.
#
# Replace SPACE with a space name.
# Obtain the space name from the spaces resource of Chat API,
# or from a space's URL.
#
# Must match the space name that the attachment is uploaded to.
parent='spaces/SPACE',
# The message to create.
body={
'text': 'Hello, world!',
'attachment': [attachment_uploaded]
}
).execute()
print(result)
if __name__ == '__main__':
main()
Nel codice, sostituisci SPACE
con il nome dello spazio in cui caricare l'allegato, che puoi ottenere dal metodo spaces.list
nell'API Chat o dall'URL di uno spazio.
Nella directory di lavoro, compila ed esegui l'esempio:
python3 chat_media_and_attachment_upload.py
L'API Chat restituisce un corpo della risposta contenente
attachmentDataRef
con i dettagli sul file caricato.
Limiti e considerazioni
Quando ti prepari a caricare file e allegarli ai messaggi, tieni presente questi
limiti e considerazioni:
Salvo quando diversamente specificato, i contenuti di questa pagina sono concessi in base alla licenza Creative Commons Attribution 4.0, mentre gli esempi di codice sono concessi in base alla licenza Apache 2.0. Per ulteriori dettagli, consulta le norme del sito di Google Developers. Java è un marchio registrato di Oracle e/o delle sue consociate.
Ultimo aggiornamento 2025-08-04 UTC.
[null,null,["Ultimo aggiornamento 2025-08-04 UTC."],[[["\u003cp\u003eThis guide demonstrates how to upload a file to Google Chat and attach it to a message using the \u003ccode\u003eupload\u003c/code\u003e method of the \u003ccode\u003eMedia\u003c/code\u003e resource and the \u003ccode\u003ecreate\u003c/code\u003e method of the \u003ccode\u003eMessages\u003c/code\u003e resource.\u003c/p\u003e\n"],["\u003cp\u003eYou'll need a Google Workspace account, a Google Cloud project, and the Google Chat API enabled to follow the steps outlined in this guide.\u003c/p\u003e\n"],["\u003cp\u003eThe provided Python code sample requires specific authorization scopes and utilizes the Google API Client Library for interaction with the Chat API.\u003c/p\u003e\n"],["\u003cp\u003eFile uploads are limited to 200 MB and certain file types are blocked; messages with attachments cannot include accessory widgets.\u003c/p\u003e\n"]]],["To upload and attach a file to a Google Chat message using the Chat API, first, call the `upload` method on the `Media` resource. Set the space name as the `parent`, the file name, and `media_body` with the file instance. Then, use the `create` method on the `Messages` resource to send a message, including the `attachment` field, set as the response from the `upload` method. File size should not exceed 200MB and some file types are not supported.\n"],null,["# Upload media as a file attachment\n\nThis guide explains how to use the `upload` method on the `Media` resource of\nthe Google Chat API to upload media (a file) to Google Chat and then attach it to\na message.\n\nWhen the user sends a message to your app, Google Chat dispatches a\n[`MESSAGE` interaction event](/workspace/chat/events#message).\nThe interaction event received by your app includes a request body, which is the\nJSON payload representing the interaction event, including any attachments. The\ndata in the attachment is different depending on whether the attachment is\nuploaded content (a local file) or is a file stored on Drive. The\n[`Media` resource](/workspace/chat/api/reference/rest/v1/media)\nrepresents a file uploaded to Google Chat, like images, videos, and documents.\nThe\n[`Attachment` resource](/workspace/chat/api/reference/rest/v1/spaces.messages.attachments)\nrepresents an instance of media---a file---attached to a message. The `Attachment`\nresource includes the metadata about the attachment, such as\nwhere it's saved.\n\nPrerequisites\n-------------\n\n\n### Python\n\n- A Business or Enterprise [Google Workspace](https://support.google.com/a/answer/6043576) account with access to [Google Chat](https://workspace.google.com/products/chat/).\n\n\u003c!-- --\u003e\n\n- Set up your environment:\n - [Create a Google Cloud project](/workspace/guides/create-project).\n - [Configure the OAuth consent screen](/workspace/guides/configure-oauth-consent).\n - [Enable and configure the Google Chat API](/workspace/chat/configure-chat-api) with a name, icon, and description for your Chat app.\n - Install the Python [Google API Client Library](/workspace/chat/libraries?tab=python#google-api-client-libraries).\n - [Create OAuth client ID credentials](/workspace/chat/authenticate-authorize-chat-user#step-2:) for a desktop application. To run the sample in this guide, save the credentials as a JSON file named `credentials.json` to your local directory.\n- [Choose an authorization scope](/workspace/chat/authenticate-authorize#asynchronous-chat-calls) that supports user authentication.\n\nUpload as a file attachment\n---------------------------\n\nTo upload media and attach it to a message, pass the following in your\nrequest::\n\n- Specify the `chat.messages.create` or `chat.messages` authorization scope.\n- Call the following Google Chat methods:\n 1. To upload the file, call the [`upload` method](/workspace/chat/api/reference/rest/v1/media/upload) on the [`Media`](/workspace/chat/api/reference/rest/v1/media) resource.\n - Set `parent` to the space name of the space that hosts the file.\n - In `body` (the request body), set `filename` to the name of the uploaded file attachment.\n - Set `media_body` as an instance of the file to be uploaded.\n 2. To create a message with the uploaded file attached, call the [`create` method](/workspace/chat/api/reference/rest/v1/spaces.messages/create) on the [`Messages` resource](/workspace/chat/api/reference/rest/v1/spaces.messages).\n - Set `attachment` as the response from calling the [`upload` method](/workspace/chat/api/reference/rest/v1/media/upload) on the [`Media` resource](/workspace/chat/api/reference/rest/v1/media). The `attachment` field accepts a list.\n\nThe following example uploads a PNG image file and attaches it to a message. \n\n### Python\n\n1. In your working directory, create a file named `chat_media_and_attachment_upload.py`.\n2. Include the following code in `chat_media_and_attachment_upload.py`:\n\n from google_auth_oauthlib.flow import InstalledAppFlow\n from googleapiclient.discovery import build\n from googleapiclient.http import MediaFileUpload\n\n # Define your app's authorization scopes.\n # When modifying these scopes, delete the file token.json, if it exists.\n SCOPES = [\"https://www.googleapis.com/auth/chat.messages.create\"]\n\n def main():\n '''\n Authenticates with Chat API via user credentials,\n then uploads a file as media, creates a message, and\n attaches the file to the message.\n '''\n\n # Authenticate with Google Workspace\n # and get user authorization.\n flow = InstalledAppFlow.from_client_secrets_file(\n 'credentials.json', SCOPES)\n creds = flow.run_local_server()\n\n # Build a service endpoint for Chat API.\n service = build('chat', 'v1', credentials=creds)\n\n # Upload a file to Google Chat.\n media = MediaFileUpload('test_image.png', mimetype='image/png')\n\n # Create a message and attach the uploaded file to it.\n attachment_uploaded = service.media().upload(\n\n # The space to upload the attachment in.\n #\n # Replace SPACE with a space name.\n # Obtain the space name from the spaces resource of Chat API,\n # or from a space's URL.\n parent='spaces/\u003cvar translate=\"no\"\u003eSPACE\u003c/var\u003e',\n\n # The filename of the attachment, including the file extension.\n body={'filename': 'test_image.png'},\n\n # Media resource of the attachment.\n media_body=media\n\n ).execute()\n\n print(attachment_uploaded)\n\n # Create a Chat message with attachment.\n result = service.spaces().messages().create(\n\n # The space to create the message in.\n #\n # Replace SPACE with a space name.\n # Obtain the space name from the spaces resource of Chat API,\n # or from a space's URL.\n #\n # Must match the space name that the attachment is uploaded to.\n parent='spaces/\u003cvar translate=\"no\"\u003eSPACE\u003c/var\u003e',\n\n # The message to create.\n body={\n 'text': 'Hello, world!',\n 'attachment': [attachment_uploaded]\n }\n\n ).execute()\n\n print(result)\n\n if __name__ == '__main__':\n main()\n\n3. In the code, replace \u003cvar translate=\"no\"\u003eSPACE\u003c/var\u003e with the space name to\n upload the attachment in, which you can obtain from the\n [`spaces.list` method](/workspace/chat/api/reference/rest/v1/spaces/list)\n in the Chat API, or from a space's URL.\n\n4. In your working directory, build and run the sample:\n\n python3 chat_media_and_attachment_upload.py\n\nThe Chat API returns a response body containing\n`attachmentDataRef` with details about the uploaded file.\n\nLimits and considerations\n-------------------------\n\nAs you prepare to upload files and attach them to messages, take note of these\nlimits and considerations:\n\n- You can upload file sizes up to 200 MB.\n- Some file types aren't supported, and can't be uploaded. For details, see [File types blocked in Google Chat](https://support.google.com/chat/answer/7651457?&co=GENIE.Platform%3DDesktop#File%20types%20blocked%20in%20Google%20Chat).\n- Your message must omit [accessory widgets](/workspace/chat/api/reference/rest/v1/spaces.messages#Message.FIELDS.accessory_widgets).\n\nRelated topics\n--------------\n\n- [Download media as a file attachment](/workspace/chat/download-media-attachments)\n- [Get metadata about a message attachment](/workspace/chat/get-media-attachments)"]]