chore: Hash cache-key to shorten it

Author: davidkna-sap

packages/connectivity/src/http-agent/http-agent.ts

@@ -1,13 +1,13 @@
-import { readFile } from 'fs/promises';
-import http from 'http';
-import https from 'https';
+import { readFile } from 'node:fs/promises';
+import http from 'node:http';
+import https from 'node:https';
 import * as jks from 'jks-js';
 import { createLogger, last } from '@sap-cloud-sdk/util';
 /* Careful the proxy imports cause circular dependencies if imported from scp directly */
 // eslint-disable-next-line import/no-internal-modules
 import { getProtocolOrDefault } from '../scp-cf/get-protocol';
 // eslint-disable-next-line import/no-internal-modules
-import { Cache } from '../scp-cf/cache';
+import { Cache, hashCacheKey } from '../scp-cf/cache';
 import {
   addProxyConfigurationInternet,
   getProxyConfig,
@@ -307,7 +307,7 @@ function createAgent(
   options: https.AgentOptions
 ): HttpAgentConfig | HttpsAgentConfig {
   const protocol = getProtocolOrDefault(destination);
-  const cacheKey = JSON.stringify({ protocol, options });
+  const cacheKey = hashCacheKey({ protocol, options });
 
   return agentCreateCache.getOrInsertComputed(cacheKey, () => {
     logger.debug(

packages/connectivity/src/scp-cf/cache.ts

@@ -1,3 +1,5 @@
+import { createHash } from 'node:crypto';
+
 interface CacheInterface<T> {
   hasKey(key: string): boolean;
   get(key: string | undefined): T | undefined;
@@ -147,9 +149,20 @@ export class Cache<T> implements CacheInterface<T> {
   }
 }
 
+/**
+ * Hashes the given value to create a cache key.
+ * @internal
+ * @param value - The value to hash.
+ * @returns A hash of the given value using a cryptographic hash function.
+ */
+export function hashCacheKey(value: Record<string, unknown>): string {
+  const serialized = JSON.stringify(value);
+  return createHash('blake2s256').update(serialized).digest('hex');
+}
+
 function isExpired<T>(item: CacheEntry<T>): boolean {
   if (item.expires === undefined) {
     return false;
   }
   return item.expires < Date.now();
-}
+}