This page shows how to get started with the Cloud Client Libraries for the Cloud Monitoring API. Read more about the client libraries for Cloud APIs, including the older Google API Client Libraries, in Client Libraries Explained.
The samples on this page use custom, or user-defined, metrics to illustrate the use of the client libraries. The system-defined metrics described in the Metrics list are collected for you. You don't need to write any code to collect them, although the agent metrics do require the installation of the Cloud Monitoring agent. For more information on agent metrics, see the Agent metrics list.For information about the previous Monitoring API client libraries, see Monitoring API Client Libraries.
Installing the client library
C#
For more information, see Setting Up a C# Development Environment.
In Visual Studio 2013/2015, open the Package Manager Console and run this command:
Install-Package Google.Cloud.Monitoring.V3 -Pre
Go
For more information, see Setting Up a Go Development Environment.
go get cloud.google.com/go/monitoring/apiv3
Java
For more information, see Setting Up a Java Development Environment.
If you are using Maven with
a BOM, add the following to your pom.xml
file:
If you are using Maven without a BOM, add this to your dependencies:
If you are using Gradle, add the following to your dependencies:
If you are using sbt, add the following to your dependencies:
If you're using Visual Studio Code, IntelliJ, or Eclipse, you can add client libraries to your project using the following IDE plugins:
The plugins provide additional functionality, such as key management for service accounts. Refer to each plugin's documentation for details.
Node.js
For more information, see Setting Up a Node.js Development Environment.
npm install --save @google-cloud/monitoring
PHP
For more information, see Using PHP on Google Cloud.
composer require google/cloud-monitoring
Python
For more information, see Setting Up a Python Development Environment.
pip install --upgrade google-cloud-monitoring
Ruby
For more information, see Setting Up a Ruby Development Environment.
gem install google-cloud-monitoring
Setting up authentication
To run the client library, you must first set up authentication. One way to do that is to create a service account and set an environment variable, as shown in the following steps. For other ways to authenticate, see Authenticating as a service account.
Create a service account:
In the Google Cloud console, go to the Create service account page.
In the Service account name field, enter a name. The Google Cloud console fills
in the Service account ID field based on this name.
In the Service account description field, enter a description. For example,
To provide access to your project, grant the following role(s) to your
service account: Project > Owner.
In the Select a role list, select a role.
For additional roles, click
Click Done to finish creating the service account.
Do not close your browser window. You will use it in the next step.
Create a service account key:
Console
Service account for quickstart
.
Set up authentication:
Create the service account:
Replace
Grant roles to the service account. Run the following command once for each of the
following IAM roles:
Replace the following:
Generate the key file:
Replace the following:
gcloud
gcloud iam service-accounts create NAME
NAME
with a name for the service account.
roles/owner
:
gcloud projects add-iam-policy-binding PROJECT_ID --member="serviceAccount:SERVICE_ACCOUNT_NAME@PROJECT_ID.iam.gserviceaccount.com" --role=ROLE
SERVICE_ACCOUNT_NAME
: the name of the service accountPROJECT_ID
: the project ID where you created the service accountROLE
: the role to grantgcloud iam service-accounts keys create FILE_NAME.json --iam-account=SERVICE_ACCOUNT_NAME@PROJECT_ID.iam.gserviceaccount.com
FILE_NAME
: a name for the key fileSERVICE_ACCOUNT_NAME
: the name of the service accountPROJECT_ID
: the project ID where you created the service account
Provide authentication credentials to your application code by setting the
environment variable GOOGLE_APPLICATION_CREDENTIALS
. This
variable applies only to your current shell session. If you want the variable
to apply to future shell sessions, set the variable in your shell startup file,
for example in the ~/.bashrc
or ~/.profile
file.
Linux or macOS
export GOOGLE_APPLICATION_CREDENTIALS="KEY_PATH
"
Replace KEY_PATH
with the path of the JSON file that contains your service account key.
For example:
export GOOGLE_APPLICATION_CREDENTIALS="/home/user/Downloads/service-account-file.json"
Windows
For PowerShell:
$env:GOOGLE_APPLICATION_CREDENTIALS="KEY_PATH
"
Replace KEY_PATH
with the path of the JSON file that contains your service account key.
For example:
$env:GOOGLE_APPLICATION_CREDENTIALS="C:\Users\username\Downloads\service-account-file.json"
For command prompt:
set GOOGLE_APPLICATION_CREDENTIALS=KEY_PATH
Replace KEY_PATH
with the path of the JSON file that contains your service account key.
Using the client library
The following example shows how to use the client library.
C#
See README.md for instructions on using Visual Studio to build and run this sample C# code.
Go
Java
Node.js
PHP
Python
Ruby