Sign in to your Google Cloud account. If you're new to
Google Cloud,
create an account to evaluate how our products perform in
real-world scenarios. New customers also get $300 in free credits to
run, test, and deploy workloads.
In the Google Cloud console, on the project selector page,
select or create a Google Cloud project.
In the Principal column, find all rows that identify you or a group that
you're included in. To learn which groups you're included in, contact your
administrator.
For all rows that specify or include you, check the Role column to see whether
the list of roles includes the required roles.
In the Principal column, find all rows that identify you or a group that
you're included in. To learn which groups you're included in, contact your
administrator.
For all rows that specify or include you, check the Role column to see whether
the list of roles includes the required roles.
Nella pagina Sottoscrizioni, fai clic su Crea sottoscrizione.
Inserisci MySub nel campo
ID sottoscrizione.
In Seleziona un argomento Cloud Pub/Sub, seleziona l'argomento MyTopic dal menu a discesa.
Lascia i valori predefiniti per le opzioni rimanenti.
Fai clic su Crea.
Viene visualizzato il messaggio di operazione riuscita: Subscription successfully added.
La sottoscrizione MySub è ora collegata all'argomento
MyTopic. Pub/Sub recapita tutti i messaggi inviati a MyTopic alle sottoscrizioni MySub e MyTopic-sub.
pubblica un messaggio nell'argomento
Nella console Google Cloud , vai alla pagina Argomenti Pub/Sub.
Dovresti vedere il messaggio che hai appena pubblicato. Il messaggio contiene
i dati, Hello World e l'ora in cui il messaggio è stato pubblicato.
Quando utilizzi la console Google Cloud , un singolo pull per un volume di messaggi
ridotto può spesso restituire zero messaggi. Se non vedi messaggi, fai clic su
Pull più volte per inviare più richieste di pull. Questo problema non riguarda le
librerie client Pub/Sub.
Esegui la pulizia
Per evitare che al tuo account Google Cloud vengano addebitati costi relativi alle risorse utilizzate in questa pagina, segui questi passaggi.
Se non hai più bisogno dell'argomento e della sottoscrizione che hai creato,
puoi eliminarli.
Per eliminare l'argomento e la sottoscrizione:
Vai alla pagina Argomenti.
Seleziona la casella di controllo accanto a MyTopic e fai clic su
Elimina.
Completa i passaggi nella finestra di conferma per eliminare definitivamente
l'argomento.
[[["Facile da capire","easyToUnderstand","thumb-up"],["Il problema è stato risolto","solvedMyProblem","thumb-up"],["Altra","otherUp","thumb-up"]],[["Difficile da capire","hardToUnderstand","thumb-down"],["Informazioni o codice di esempio errati","incorrectInformationOrSampleCode","thumb-down"],["Mancano le informazioni o gli esempi di cui ho bisogno","missingTheInformationSamplesINeed","thumb-down"],["Problema di traduzione","translationIssue","thumb-down"],["Altra","otherDown","thumb-down"]],["Ultimo aggiornamento 2025-09-04 UTC."],[],[],null,["# Quickstart: Publish and receive messages in Pub/Sub using the Google Cloud console\n\nPublish and receive messages in Pub/Sub using the Google Cloud console\n======================================================================\n\nThis page shows you how to perform basic tasks in Pub/Sub using the\nGoogle Cloud console.\n\n*** ** * ** ***\n\nTo follow step-by-step guidance for this task directly in the\nGoogle Cloud console, click **Guide me**:\n\n[Guide me](https://console.cloud.google.com/freetrial?redirectPath=/home/dashboard?tutorial=pubsub--publish_receive_messages_console)\n\n*** ** * ** ***\n\nBefore you begin\n----------------\n\n- Sign in to your Google Cloud account. If you're new to Google Cloud, [create an account](https://console.cloud.google.com/freetrial) to evaluate how our products perform in real-world scenarios. New customers also get $300 in free credits to run, test, and deploy workloads.\n- In the Google Cloud console, on the project selector page,\n select or create a Google Cloud project.\n\n | **Note**: If you don't plan to keep the resources that you create in this procedure, create a project instead of selecting an existing project. After you finish these steps, you can delete the project, removing all resources associated with the project.\n\n [Go to project selector](https://console.cloud.google.com/projectselector2/home/dashboard)\n-\n [Verify that billing is enabled for your Google Cloud project](/billing/docs/how-to/verify-billing-enabled#confirm_billing_is_enabled_on_a_project).\n\n-\n\n\n Enable the Pub/Sub API.\n\n\n [Enable the API](https://console.cloud.google.com/flows/enableapi?apiid=pubsub.googleapis.com)\n-\n\n Make sure that you have the following role or roles on the project:\n\n Pub/Sub Admin\n\n #### Check for the roles\n\n 1.\n In the Google Cloud console, go to the **IAM** page.\n\n [Go to IAM](https://console.cloud.google.com/projectselector/iam-admin/iam?supportedpurview=project)\n 2. Select the project.\n 3.\n In the **Principal** column, find all rows that identify you or a group that\n you're included in. To learn which groups you're included in, contact your\n administrator.\n\n 4. For all rows that specify or include you, check the **Role** column to see whether the list of roles includes the required roles.\n\n #### Grant the roles\n\n 1.\n In the Google Cloud console, go to the **IAM** page.\n\n [Go to IAM](https://console.cloud.google.com/projectselector/iam-admin/iam?supportedpurview=project)\n 2. Select the project.\n 3. Click person_add **Grant access**.\n 4.\n In the **New principals** field, enter your user identifier.\n\n This is typically the email address for a Google Account.\n\n 5. In the **Select a role** list, select a role.\n 6. To grant additional roles, click add **Add\n another role** and add each additional role.\n 7. Click **Save**.\n\n- In the Google Cloud console, on the project selector page,\n select or create a Google Cloud project.\n\n | **Note**: If you don't plan to keep the resources that you create in this procedure, create a project instead of selecting an existing project. After you finish these steps, you can delete the project, removing all resources associated with the project.\n\n [Go to project selector](https://console.cloud.google.com/projectselector2/home/dashboard)\n-\n [Verify that billing is enabled for your Google Cloud project](/billing/docs/how-to/verify-billing-enabled#confirm_billing_is_enabled_on_a_project).\n\n-\n\n\n Enable the Pub/Sub API.\n\n\n [Enable the API](https://console.cloud.google.com/flows/enableapi?apiid=pubsub.googleapis.com)\n-\n\n Make sure that you have the following role or roles on the project:\n\n Pub/Sub Admin\n\n #### Check for the roles\n\n 1.\n In the Google Cloud console, go to the **IAM** page.\n\n [Go to IAM](https://console.cloud.google.com/projectselector/iam-admin/iam?supportedpurview=project)\n 2. Select the project.\n 3.\n In the **Principal** column, find all rows that identify you or a group that\n you're included in. To learn which groups you're included in, contact your\n administrator.\n\n 4. For all rows that specify or include you, check the **Role** column to see whether the list of roles includes the required roles.\n\n #### Grant the roles\n\n 1.\n In the Google Cloud console, go to the **IAM** page.\n\n [Go to IAM](https://console.cloud.google.com/projectselector/iam-admin/iam?supportedpurview=project)\n 2. Select the project.\n 3. Click person_add **Grant access**.\n 4.\n In the **New principals** field, enter your user identifier.\n\n This is typically the email address for a Google Account.\n\n 5. In the **Select a role** list, select a role.\n 6. To grant additional roles, click add **Add\n another role** and add each additional role.\n 7. Click **Save**.\n\nCreate a topic\n--------------\n\n1. In the Google Cloud console, go to the **Pub/Sub**\n page.\n\n\n [Go to Pub/Sub](https://console.cloud.google.com/cloudpubsub/topicList)\n2. In the **Topics** page, click **Create topic**.\n\n3. In the window that opens, enter `MyTopic` in the **Topic ID** field.\n\n Leave the default values for the remaining options, and then click **Create**.\n\n You see the success message: `A new topic and a new subscription have been successfully created.`\n\n You have just created a topic called `MyTopic` and an associated default subscription `MyTopic-sub`.\n\nAdd a second subscription\n-------------------------\n\nTo add a second subscription to the topic you just created, complete these steps:\n\n1. In the Google Cloud console, go to the **Pub/Sub subscriptions** page.\n\n [Go to Subscriptions](https://console.cloud.google.com/cloudpubsub/subscription/list)\n2. In the **Subscriptions** page, click **Create subscription**.\n\n3. Enter `MySub` in the\n **Subscription ID** field.\n\n4. For **Select a Cloud Pub/Sub topic** , select the `MyTopic` topic from the drop-down menu.\n\n5. Leave the default values for the remaining options.\n\n6. Click **Create**.\n\n You see the success message: `Subscription successfully added.`\n\n The `MySub` subscription is now attached to the topic\n `MyTopic`. Pub/Sub delivers all messages sent to\n `MyTopic` to the `MySub` and `MyTopic-sub` subscriptions.\n\nPublish a message to the topic\n------------------------------\n\n1. In the Google Cloud console, go to the **Pub/Sub topics**\n page.\n\n [Go to Topics](https://console.cloud.google.com/cloudpubsub/topicList)\n2. Click the `MyTopic` topic.\n\n3. Click the\n **Topics**\n page and click `MyTopic`.\n\n4. In the `MyTopic` page, click the **Messages** tab.\n\n5. Click\n **Publish message**.\n\n6. In the **Message body** window, enter `Hello World`.\n\n7. Click **Publish**. A message displays at the bottom of the page that says \"Message published\" if the publish was successful.\n\nPull the messages from the subscription\n---------------------------------------\n\n1. In the Google Cloud console, go to the **Pub/Sub subscriptions** page.\n\n [Go to Subscriptions](https://console.cloud.google.com/cloudpubsub/subscription/list)\n2. In the **Messages** tab, click **Pull**.\n\nYou should see the message that you just published. The message has\nthe data, `Hello World`, and the time when the message was\npublished.\n\nWhen using the Google Cloud console, an individual pull for a low\nmessage volume can often return zero messages. If you do not see messages, click\n**Pull** multiple times to issue multiple pull requests. This is not an issue\nwith the [Pub/Sub Client Libraries](/pubsub/docs/publish-receive-messages-client-library).\n\nClean up\n--------\n\n\nTo avoid incurring charges to your Google Cloud account for\nthe resources used on this page, follow these steps.\n\nIf you no longer need the topic and subscription you created, you\ncan delete them.\n\nTo delete the topic and subscription, complete these steps:\n\n1. Go to the\n **Topics**\n page.\n\n2. Check the checkbox next to `MyTopic` and click\n **Delete**.\n\n3. Complete the steps in the confirmation window to permanently delete the\n topic.\n\nOr you can [delete the project](https://console.cloud.google.com/cloud-resource-manager) that you created.\n\nWhat's next\n-----------\n\n- Learn more about the Pub/Sub [concepts](/pubsub/docs/overview)\n discussed in this page.\n\n- Read the [basics of the Pub/Sub service](/pubsub/docs/pubsub-basics).\n\n- Work through an [end-to-end example](/pubsub/docs/building-pubsub-messaging-system)\n of a Pub/Sub system.\n\n- Try another Pub/Sub quickstart that\n uses [client libraries](/pubsub/docs/publish-receive-messages-client-library)\n or the [Google Cloud CLI](/pubsub/docs/publish-receive-messages-gcloud).\n\n- Learn how to create [topics](/pubsub/docs/create-topic)\n and publish [messages](/pubsub/docs/publisher).\n\n- [Choose](/pubsub/docs/subscriber) or [create](/pubsub/docs/create-subscription) a subscription.\n\n- Learn more about [Pub/Sub APIs](/pubsub/docs/reference/service_apis_overview)."]]
