Mailer-16: chore: cache the values from aws secrets

src/config/mail.config.ts

@@ -1,21 +1,26 @@
 import getSecret from '../strategies/secretStrategies/secretStrategy';
+import storageProvider, {
+  MAIL_CONFIG_KEYS
+} from '../providers/awsConfigStorage.provider';
 
 const getMailConfig = async () => {
-  const keys = [
-    'MAIL_FROM_ADDRESS',
-    'MAIL_FROM_NAME',
-    'MAIL_SERVER_HOST',
-    'MAIL_PASSWORD'
-  ];
+  if (!storageProvider.size) {
+    const [from, name, host, password] = await Promise.all(
+      Object.keys(MAIL_CONFIG_KEYS).map(getSecret)
+    );
 
-  const [from, name, host, password] = await Promise.all(keys.map(getSecret));
+    storageProvider.set(MAIL_CONFIG_KEYS.MAIL_FROM_ADDRESS, from);
+    storageProvider.set(MAIL_CONFIG_KEYS.MAIL_FROM_NAME, name);
+    storageProvider.set(MAIL_CONFIG_KEYS.MAIL_SERVER_HOST, host);
+    storageProvider.set(MAIL_CONFIG_KEYS.MAIL_PASSWORD, password);
+  }
 
   const mailConfig = {
-    from,
-    name,
+    from: storageProvider.get(MAIL_CONFIG_KEYS.MAIL_FROM_ADDRESS),
+    name: storageProvider.get(MAIL_CONFIG_KEYS.MAIL_FROM_NAME),
     mailServer: {
-      host,
-      password
+      host: storageProvider.get(MAIL_CONFIG_KEYS.MAIL_SERVER_HOST),
+      password: storageProvider.get(MAIL_CONFIG_KEYS.MAIL_PASSWORD)
     }
   };
 

src/providers/awsConfigStorage.provider.ts

@@ -0,0 +1,10 @@
+export const MAIL_CONFIG_KEYS = {
+  MAIL_FROM_ADDRESS: 'MAIL_FROM_ADDRESS' as const,
+  MAIL_FROM_NAME: 'MAIL_FROM_NAME' as const,
+  MAIL_SERVER_HOST: 'MAIL_SERVER_HOST' as const,
+  MAIL_PASSWORD: 'MAIL_PASSWORD' as const
+};
+
+type MAIL_CONFIG_KEYS = keyof typeof MAIL_CONFIG_KEYS;
+
+export default new Map<MAIL_CONFIG_KEYS, string>();

src/strategies/secretStrategies/secretStrategy.ts

@@ -4,11 +4,9 @@ import type { IMailerSecretKey, IMailerSecretKeys } from './secrets';
 
 async function getSecret(
   key: IMailerSecretKey
-): Promise<IMailerSecretKeys[typeof key]> {
+): Promise<IMailerSecretKeys[IMailerSecretKey]> {
   const awsSecret = AwsSecret.getSecrets(key);
 
-  console.log({ awsSecret, key });
-
   if (awsSecret) {
     return awsSecret;
   }