angular-cli/docs/documentation/stories/budgets.md

Documentation below is for CLI version 6. For version 7 see here.

Budgets

As applications grow in functionality, they also grow in size. Budgets is a feature in the Angular CLI which allows you to set budget thresholds in your configuration to ensure parts of your application stay within boundaries which you set.

angular.json

{
  ...
  "configurations": {
    "production": {
      ...
      budgets: []
    }
  }
}

Budget Definition

• type
  • The type of budget.
  • Possible values:
    • bundle - The size of a specific bundle.
    • initial - The initial size of the app.
    • allScript - The size of all scripts.
    • all - The size of the entire app.
    • anyScript - The size of any one script.
    • any - The size of any file.
• name
  • The name of the bundle.
  • Required only for type of "bundle"
• baseline
  • The baseline size for comparison.
• maximumWarning
  • The maximum threshold for warning relative to the baseline.
• maximumError
  • The maximum threshold for error relative to the baseline.
• minimumWarning
  • The minimum threshold for warning relative to the baseline.
• minimumError
  • The minimum threshold for error relative to the baseline.
• warning
  • The threshold for warning relative to the baseline (min & max).
• error
  • The threshold for error relative to the baseline (min & max).

Specifying sizes

Available formats:

• 123 - size in bytes
• 123b - size in bytes
• 123kb - size in kilobytes
• 123mb - size in megabytes
• 12% - percentage

NOTES

All sizes are relative to baseline. Percentages are not valid for baseline values.

Example

{
  ...
  "configurations": {
    "production": {
      ...
      budgets: [
        {
          "type": "bundle",
          "name": "vendor",
          "minimumWarning": "300kb",
          "minimumError": "400kb",
        }
      ]
    }
  }
}