Struct Builder

pub struct Builder { /* private fields */ }

A builder for creating credentials that authenticate using an API key.

API keys are convenient because no principal is needed. The API key associates the request with a Google Cloud project for billing and quota purposes.

Note that only some Cloud APIs support API keys. The rest require full credentials.

Implementations

impl Builder

pub fn new<T: Into<String>>(api_key: T) -> Self

Creates a new builder with given API key.

Example

let credentials = Builder::new("my-api-key")
    .build();

pub fn with_quota_project_id<T: Into<String>>(self, quota_project_id: T) -> Self

Sets the quota project for these credentials.

In some services, you can use an account in one project for authentication and authorization, and charge the usage to a different project. This requires that the user has serviceusage.services.use permissions on the quota project.

Example

let credentials = Builder::new("my-api-key")
    .with_quota_project_id("my-project")
    .build();

pub fn build(self) -> Credentials

Returns a Credentials instance with the configured settings.

Trait Implementations

impl Debug for Builder

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.