Using the SonarScanner for NPM

You can start the SonarScanner for NPM and thus, integrate it into your CI or build pipeline, in the following ways:

• From the command line.
  A global mode installation of the scanner is required.
• From the command line with npx.
  No scanner installation is required.
• By adding the analysis step to your build files.
  The scanner must be added to the project’s devDependencies.

You can pass analysis parameters in the command line and in the analysis step coded in JS. In addition, the SonarScanner for NPM gets analysis parameters from different other sources: see Configuring the project analysis parameters. To get started, you must configure at a minimum the SonarQube Server host URL and the token used to connect to the server.

Starting the scanner from the command line

1. Make sure the scanner is installed in global mode: see Installing the scanner in global mode.
2. Use the sonar-scanner command to start the analysis.
   To pass analysis parameters in the command line, use the standard -Dsonar.xxx=yyy syntax.
   Example:

sonar-scanner -Dsonar.host.url=https://myserver.com -Dsonar.token=019d1e2e04e

Starting the scanner from the command line with npx

• Use the npx sonarqube-scanner command to start the analysis.
  To pass analysis parameters in the command line, use the standard -Dsonar.xxx=yyy syntax.
  Example:

npx sonarqube-scanner -Dsonar.host.url=https://myserver.com -Dsonar.token=019d1e2e04e

Adding the analysis step to your build files

1. Make sure the scanner is installed in your project’s devDependencies: see Adding the scanner to your project devDependencies.
2. Code the analysis step in JS in your build files, as shown in the example below.

const scanner = require('sonarqube-scanner');
scanner(
  {
    serverUrl: 'https://sonarqube.mycompany.com',
    token: '019d1e2e04eefdcd0caee1468f39a45e69d33d3f', 
    options: {
      'sonar.projectName': 'My App',
      'sonar.projectDescription': 'Description for "My App" project...',
      'sonar.sources': 'src',
      'sonar.tests': 'test', 
    },
  },
  () => process.exit(),
);

Where the syntax is as follows:

sonarqube-scanner ( parameters, [callback] )

• parameters (format: Map)
  • serverUrl (format: String; optional): The URL of the SonarQube Server instance. Defaults to the value of the SonarQube Cloud URL (sonar.scanner.cloudUrl property).
  • token (format: String; optional): The token used to connect to your instance of SonarQube Server or SonarQube Cloud. Empty by default.
  • options (format: Map; optional): Used to pass extra parameters for the analysis. See Configuring the analysis parameters for more details.
• callback (format: Function; optional): Callback (the execution of the analysis is asynchronous).