/
metricsAdvisorKeyCredentialPolicy.ts
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/
metricsAdvisorKeyCredentialPolicy.ts
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// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.
import {
RequestPolicyFactory,
RequestPolicy,
RequestPolicyOptions,
BaseRequestPolicy,
HttpOperationResponse,
RequestPolicyOptionsLike,
WebResourceLike
} from "@azure/core-http";
const API_KEY_HEADER_NAME = "Ocp-Apim-Subscription-Key";
const X_API_KEY_HEADER_NAME = "x-api-key";
/**
* Credential used to authenticate and authorize with Metrics Advisor service
*/
export class MetricsAdvisorKeyCredential {
/**
* Creates an instance of MetricsAdvisorKeyCredential
*
* @param subscriptionKey Subscription access key from the Azure portal
* @param apiKey API key from the Metrics Advisor web portal
*/
constructor(readonly subscriptionKey: string, readonly apiKey: string) {}
}
/**
* Creates an HTTP pipeline policy to authenticate a request
* using an `MetricsAdvisorKeyCredential`
*/
export function createMetricsAdvisorKeyCredentialPolicy(
credential: MetricsAdvisorKeyCredential
): RequestPolicyFactory {
return {
create: (nextPolicy: RequestPolicy, options: RequestPolicyOptions) => {
return new MetricsAdvisorKeyCredentialPolicy(nextPolicy, options, credential);
}
};
}
/**
* A concrete implementation of an MetricsAdvisorKeyCredential policy
* using the appropriate header
*/
class MetricsAdvisorKeyCredentialPolicy extends BaseRequestPolicy {
private subscriptionKey: string;
private apiKey: string;
constructor(
nextPolicy: RequestPolicy,
options: RequestPolicyOptionsLike,
credential: MetricsAdvisorKeyCredential
) {
super(nextPolicy, options);
this.subscriptionKey = credential.subscriptionKey;
this.apiKey = credential.apiKey;
}
public async sendRequest(webResource: WebResourceLike): Promise<HttpOperationResponse> {
if (!webResource) {
throw new Error("webResource cannot be null or undefined");
}
webResource.headers.set(API_KEY_HEADER_NAME, this.subscriptionKey);
webResource.headers.set(X_API_KEY_HEADER_NAME, this.apiKey);
return this._nextPolicy.sendRequest(webResource);
}
}