Managing dependencies

Cloud Functions can automatically install dependencies necessary for a function to run when creating a new function version.

Dependencies are installed by the npm ci command that is run in the project root (directory with the function). You can list the required libraries in the following ways:

• Specify the libraries and their versions in the package.json file:

  {
    "name": "my-app",
    "version": "1.0.0",
    "dependencies": {
      "lodash": "^4.17.15"
    }
  }
  

• Run the npm install <library> command in the project root.

  • If the package.json file exists, the library is added to it.
  • If the package.json file is missing, a file named package-lock.json is created. It contains a list of the registered versions of all the libraries in use.

The dependency installation process has some technical restrictions. For more information, see Quotas and limits. You can view the dependency installation log using the link that appears in the list of operations.