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Standard Parameters

All parameters are optional except where noted.

Parameter Meaning Notes
callback Callback function.
  • Name of the JavaScript callback function that handles the response.
  • Used in JavaScript JSON-P requests.
fields Selector specifying a subset of fields to include in the response.
  • For more information, see the partial response section in the Performance Tips document.
  • Use for better performance.
prettyPrint

Returns response with indentations and line breaks.

  • Returns the response in a human-readable format if true .
  • Default value: true .
  • When this is false , it can reduce the response payload size, which might lead to better performance in some environments.
quotaUser Alternative to userIp .
  • Lets you enforce per-user quotas from a server-side application even in cases when the user's IP address is unknown. This can occur, for example, with applications that run cron jobs on App Engine on a user's behalf.
  • You can choose any arbitrary string that uniquely identifies a user, but it is limited to 40 characters.
  • Overrides userIp if both are provided.
  • Learn more about capping usage .
userIp IP address of the end user for whom the API call is being made.
  • Lets you enforce per-user quotas when calling the API from a server-side application.
  • Learn more about capping usage .

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