///
import { GoogleToken } from 'gtoken';
import * as stream from 'stream';
import { CredentialBody, Credentials, JWTInput } from './credentials';
import { IdTokenProvider } from './idtokenclient';
import { GetTokenResponse, OAuth2Client, RefreshOptions, RequestMetadataResponse } from './oauth2client';
export interface JWTOptions extends RefreshOptions {
email?: string;
keyFile?: string;
key?: string;
keyId?: string;
scopes?: string | string[];
subject?: string;
additionalClaims?: {};
}
export declare class JWT extends OAuth2Client implements IdTokenProvider {
email?: string;
keyFile?: string;
key?: string;
keyId?: string;
defaultScopes?: string | string[];
scopes?: string | string[];
scope?: string;
subject?: string;
gtoken?: GoogleToken;
additionalClaims?: {};
useJWTAccessWithScope?: boolean;
defaultServicePath?: string;
private access?;
/**
* JWT service account credentials.
*
* Retrieve access token using gtoken.
*
* @param email service account email address.
* @param keyFile path to private key file.
* @param key value of key
* @param scopes list of requested scopes or a single scope.
* @param subject impersonated account's email address.
* @param key_id the ID of the key
*/
constructor(options: JWTOptions);
constructor(email?: string, keyFile?: string, key?: string, scopes?: string | string[], subject?: string, keyId?: string);
/**
* Creates a copy of the credential with the specified scopes.
* @param scopes List of requested scopes or a single scope.
* @return The cloned instance.
*/
createScoped(scopes?: string | string[]): JWT;
/**
* Obtains the metadata to be sent with the request.
*
* @param url the URI being authorized.
*/
protected getRequestMetadataAsync(url?: string | null): Promise;
/**
* Fetches an ID token.
* @param targetAudience the audience for the fetched ID token.
*/
fetchIdToken(targetAudience: string): Promise;
/**
* Determine if there are currently scopes available.
*/
private hasUserScopes;
/**
* Are there any default or user scopes defined.
*/
private hasAnyScopes;
/**
* Get the initial access token using gToken.
* @param callback Optional callback.
* @returns Promise that resolves with credentials
*/
authorize(): Promise;
authorize(callback: (err: Error | null, result?: Credentials) => void): void;
private authorizeAsync;
/**
* Refreshes the access token.
* @param refreshToken ignored
* @private
*/
protected refreshTokenNoCache(refreshToken?: string | null): Promise;
/**
* Create a gToken if it doesn't already exist.
*/
private createGToken;
/**
* Create a JWT credentials instance using the given input options.
* @param json The input object.
*/
fromJSON(json: JWTInput): void;
/**
* Create a JWT credentials instance using the given input stream.
* @param inputStream The input stream.
* @param callback Optional callback.
*/
fromStream(inputStream: stream.Readable): Promise;
fromStream(inputStream: stream.Readable, callback: (err?: Error | null) => void): void;
private fromStreamAsync;
/**
* Creates a JWT credentials instance using an API Key for authentication.
* @param apiKey The API Key in string form.
*/
fromAPIKey(apiKey: string): void;
/**
* Using the key or keyFile on the JWT client, obtain an object that contains
* the key and the client email.
*/
getCredentials(): Promise;
}