feat(algoan): add a method to retrieve sa from sub id

src/Algoan.ts

@@ -1,6 +1,7 @@
 import { RequestBuilder } from './RequestBuilder';
 import { PostSubscriptionDTO, EventName } from './lib';
 import { ServiceAccount } from './core/ServiceAccount';
+import { Subscription } from './core';
 /**
  * Algoan API
  */
@@ -70,6 +71,16 @@ export class Algoan {
     }
   }
 
+  /**
+   * Get a service account with a given subscription id
+   * @param subscriptionId Unique subscription identifier
+   */
+  public getServiceAccountBySubscriptionId(subscriptionId: string): ServiceAccount | undefined {
+    return this.serviceAccounts.find((sa: ServiceAccount) =>
+      sa.subscriptions.find((sub: Subscription) => sub.id === subscriptionId),
+    );
+  }
+
   /**
    * Transform a list of events to a Subscription request body
    * @param target Base URL

src/core/index.ts

@@ -0,0 +1,2 @@
+export * from './ServiceAccount';
+export * from './Subscription';

src/index.ts

@@ -1,2 +1,4 @@
 export * from './Algoan';
 export * from './lib';
+export * from './core';
+export * from './RequestBuilder';

test/algoan.test.ts

@@ -1,6 +1,6 @@
 import * as nock from 'nock';
 
-import { Algoan, EventName } from '../src';
+import { Algoan, EventName, ServiceAccount, Subscription, RequestBuilder } from '../src';
 import { serviceAccounts } from './samples/service-accounts';
 import { subscriptions as subscriptionsSample } from './samples/subscriptions';
 import { getFakeAlgoanServer, getOAuthServer } from './utils/fake-server.utils';
@@ -97,7 +97,7 @@ describe('Tests related to the Algoan class', () => {
       expect(client.serviceAccounts).toHaveLength(2);
     });
 
-    it('ALG001 - should correctly get subscriptions and service accounts - multiple bodies', async () => {
+    it('ALG004 - should correctly get subscriptions and service accounts - multiple bodies', async () => {
       serviceAccountAPI = getFakeAlgoanServer({
         baseUrl,
         path: '/v1/service-accounts',
@@ -124,4 +124,28 @@ describe('Tests related to the Algoan class', () => {
       expect(client.serviceAccounts[0].subscriptions).toHaveLength(2);
     });
   });
+
+  describe('getServiceAccountBySubscriptionId()', () => {
+    it('ALG010 - should get a service account stored in-memory', () => {
+      const client: Algoan = new Algoan({
+        baseUrl: 'random',
+        clientId: 'a',
+        clientSecret: 'b',
+      });
+
+      client.serviceAccounts.push(new ServiceAccount('https://', serviceAccounts[0]));
+      client.serviceAccounts[0].subscriptions.push(
+        new Subscription(
+          subscriptionsSample[0],
+          new RequestBuilder('http://', {
+            clientSecret: 'a',
+            clientId: 'a',
+          }),
+        ),
+      );
+
+      expect(client.getServiceAccountBySubscriptionId(subscriptionsSample[0].id)).toEqual(client.serviceAccounts[0]);
+      expect(client.getServiceAccountBySubscriptionId('random')).toBeUndefined();
+    });
+  });
 });