Memublikasikan dan menerima pesan di Pub/Sub menggunakan Google Cloud konsol

Memublikasikan dan menerima pesan di Pub/Sub menggunakan Google Cloud konsol

Halaman ini menunjukkan cara melakukan tugas dasar di Pub/Sub menggunakan konsolGoogle Cloud .

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Untuk mengikuti panduan langkah demi langkah untuk tugas ini langsung di Google Cloud konsol, klik Pandu saya:

Pandu saya

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Sebelum memulai

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In the Google Cloud console, on the project selector page, select or create a Google Cloud project.
Roles required to select or create a project
• Select a project: Selecting a project doesn't require a specific IAM role—you can select any project that you've been granted a role on.
• Create a project: To create a project, you need the Project Creator role (roles/resourcemanager.projectCreator), which contains the resourcemanager.projects.create permission. Learn how to grant roles.
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.
Go to project selector
Verify that billing is enabled for your Google Cloud project.
Enable the Pub/Sub API.
Roles required to enable APIs
To enable APIs, you need the Service Usage Admin IAM role (roles/serviceusage.serviceUsageAdmin), which contains the serviceusage.services.enable permission. Learn how to grant roles.
Enable the API
Make sure that you have the following role or roles on the project: Pub/Sub Admin
Check for the roles
1. In the Google Cloud console, go to the IAM page.

   Go to IAM
2. Select the project.

3. 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.

4. For all rows that specify or include you, check the Role column to see whether the list of roles includes the required roles.
Grant the roles
1. In the Google Cloud console, go to the IAM page.

   Go to IAM
2. Select the project.
3. Click Grant access.

4. In the New principals field, enter your user identifier. This is typically the email address for a Google Account.

5. Click Select a role, then search for the role.
6. To grant additional roles, click Add another role and add each additional role.
7. Click Save.

In the Google Cloud console, on the project selector page, select or create a Google Cloud project.

Roles required to select or create a project

• Select a project: Selecting a project doesn't require a specific IAM role—you can select any project that you've been granted a role on.
• Create a project: To create a project, you need the Project Creator role (roles/resourcemanager.projectCreator), which contains the resourcemanager.projects.create permission. Learn how to grant roles.

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.

Go to project selector

Verify that billing is enabled for your Google Cloud project.

Enable the Pub/Sub API.

Roles required to enable APIs

To enable APIs, you need the Service Usage Admin IAM role (roles/serviceusage.serviceUsageAdmin), which contains the serviceusage.services.enable permission. Learn how to grant roles.

Enable the API

Make sure that you have the following role or roles on the project: Pub/Sub Admin

Check for the roles

1. In the Google Cloud console, go to the IAM page.

   Go to IAM
2. Select the project.

3. 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.

4. For all rows that specify or include you, check the Role column to see whether the list of roles includes the required roles.

Grant the roles

1. In the Google Cloud console, go to the IAM page.

   Go to IAM
2. Select the project.
3. Click Grant access.

4. In the New principals field, enter your user identifier. This is typically the email address for a Google Account.

5. Click Select a role, then search for the role.
6. To grant additional roles, click Add another role and add each additional role.
7. Click Save.

Membuat topik

1. Di konsol Google Cloud , buka halaman Pub/Sub.

   Buka Pub/Sub

2. Di halaman Topics, klik Buat topik.

3. Di jendela yang terbuka, masukkan MyTopic di kolom ID Topik.

   Biarkan nilai default untuk opsi lainnya, lalu klik Create.

   Anda akan melihat pesan keberhasilan: A new topic and a new subscription have been successfully created.

   Anda baru saja membuat topik bernama MyTopic dan langganan default terkait MyTopic-sub.

Menambahkan langganan kedua

Untuk menambahkan langganan kedua ke topik yang baru saja Anda buat, selesaikan langkah-langkah berikut:

1. Di konsol Google Cloud , buka halaman Pub/Sub subscriptions.

   Buka Langganan

2. Di halaman Subscriptions, klik Create subscription.

3. Masukkan MySub di kolom Subscription ID.

4. Untuk Select a Cloud Pub/Sub topic, pilih topik MyTopic dari menu drop-down.

5. Biarkan nilai default untuk opsi lainnya.

6. Klik Buat.

   Anda akan melihat pesan keberhasilan: Subscription successfully added.

   Langganan MySub kini terpasang ke topik MyTopic. Pub/Sub mengirimkan semua pesan yang dikirim ke MyTopic ke langganan MySub dan MyTopic-sub.

Memublikasikan pesan ke topik

1. Di konsol Google Cloud , buka halaman Pub/Sub topics.

   Buka Topik

2. Klik topik MyTopic.

3. Klik halaman Topik lalu klik MyTopic.

4. Di halaman MyTopic, klik tab Pesan.

5. Klik Publikasikan pesan.

6. Di jendela Isi pesan, masukkan Hello World.

7. Klik Publikasikan. Pesan "Message published" akan muncul di bagian bawah halaman jika publikasi berhasil.

Mengambil pesan dari langganan

1. Di konsol Google Cloud , buka halaman Pub/Sub subscriptions.

   Buka Langganan

2. Di tab Messages, klik Pull.

Anda akan melihat pesan yang baru saja Anda publikasikan. Pesan memiliki data, Hello World, dan waktu saat pesan dipublikasikan.

Saat menggunakan konsol Google Cloud , penarikan individual untuk volume pesan yang rendah sering kali menampilkan nol pesan. Jika Anda tidak melihat pesan, klik Tarik beberapa kali untuk mengirimkan beberapa permintaan penarikan. Ini bukan masalah pada Library Klien Pub/Sub.

Pembersihan

Agar akun Google Cloud Anda tidak dikenai biaya untuk resource yang digunakan pada halaman ini, ikuti langkah-langkah berikut.

Jika tidak lagi memerlukan topik dan langganan yang Anda buat, Anda dapat menghapusnya.

Untuk menghapus topik dan langganan, selesaikan langkah-langkah berikut:

1. Buka halaman Topik.

2. Centang kotak di samping MyTopic, lalu klik Hapus.

3. Selesaikan langkah-langkah di jendela konfirmasi untuk menghapus topik secara permanen.

Atau, Anda dapat menghapus project yang Anda buat.

Langkah berikutnya

• Pelajari lebih lanjut konsep Pub/Sub yang dibahas di halaman ini.

• Baca dasar-dasar layanan Pub/Sub.

• Pelajari contoh end-to-end sistem Pub/Sub.

• Coba panduan memulai Pub/Sub lain yang menggunakan library klien atau Google Cloud CLI.

• Pelajari cara membuat topik dan memublikasikan pesan.

• Pilih atau buat langganan.

• Pelajari lebih lanjut Pub/Sub API.