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Restore in-memory API cache priority

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Ben
2026-06-08 00:19:56 -04:00
parent 17ba4afc1a
commit ac7827a944
1 changed files with 37 additions and 16 deletions
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src/app.controller.ts
+34 -13
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@@ -37,7 +37,7 @@ export class AppController {
const CACHE_KEY = 'SITE_INFO'; const CACHE_KEY = 'SITE_INFO';
const cachedResult = await this.getCached(CACHE_KEY); const cachedResult = await this.getCached(CACHE_KEY, 5 * 60 * 1000);
if (cachedResult != null) { if (cachedResult != null) {
return cachedResult; return cachedResult;
@@ -108,7 +108,7 @@ export class AppController {
@Get('info/accounting') @Get('info/accounting')
public async infoAccounting() { public async infoAccounting() {
const CACHE_KEY = 'SITE_ACCOUNTING'; const CACHE_KEY = 'SITE_ACCOUNTING';
const cachedResult = await this.getCached(CACHE_KEY); const cachedResult = await this.getCached(CACHE_KEY, 15 * 1000);
if (cachedResult != null) { if (cachedResult != null) {
return cachedResult; return cachedResult;
@@ -126,7 +126,7 @@ export class AppController {
public async pool() { public async pool() {
const CACHE_KEY = 'POOL_INFO'; const CACHE_KEY = 'POOL_INFO';
const cachedResult = await this.getCached(CACHE_KEY); const cachedResult = await this.getCached(CACHE_KEY, 15 * 1000);
if (cachedResult != null) { if (cachedResult != null) {
return cachedResult; return cachedResult;
@@ -163,7 +163,7 @@ export class AppController {
const CACHE_KEY = 'SITE_HASHRATE_GRAPH'; const CACHE_KEY = 'SITE_HASHRATE_GRAPH';
const cachedResult = await this.getCached(CACHE_KEY); const cachedResult = await this.getCached(CACHE_KEY, 10 * 60 * 1000);
if (cachedResult != null) { if (cachedResult != null) {
return cachedResult; return cachedResult;
@@ -179,25 +179,32 @@ export class AppController {
} }
private async getCached<T>(key: string): Promise<T | null> { private async getCached<T>(key: string, localTtlMs: number): Promise<T | null> {
const shared = await this.redisMessagingService.getJsonCache<T>(`api:${key}`).catch(error => { const local = await this.cacheManager.get<T>(key);
if (local != null) {
return local;
}
const shared = await this.withSecondaryCacheTimeout(
this.redisMessagingService.getJsonCache<T>(`api:${key}`).catch(error => {
console.error(`Shared API cache read failed for ${key}: ${error.message}`); console.error(`Shared API cache read failed for ${key}: ${error.message}`);
return null; return null;
}); }),
100
);
if (shared != null) { if (shared != null) {
await this.cacheManager.set(key, shared, localTtlMs);
return shared; return shared;
} }
return await this.cacheManager.get<T>(key) ?? null; return null;
} }
private async setCached(key: string, value: unknown, ttlMs: number): Promise<void> { private async setCached(key: string, value: unknown, ttlMs: number): Promise<void> {
await Promise.all([ await this.cacheManager.set(key, value, ttlMs);
this.cacheManager.set(key, value, ttlMs), void this.redisMessagingService.setJsonCache(`api:${key}`, value, ttlMs).catch(error => {
this.redisMessagingService.setJsonCache(`api:${key}`, value, ttlMs).catch(error => {
console.error(`Shared API cache write failed for ${key}: ${error.message}`); console.error(`Shared API cache write failed for ${key}: ${error.message}`);
}), });
]);
} }
private async withTimeout<T>( private async withTimeout<T>(
@@ -224,4 +231,18 @@ export class AppController {
} }
} }
private async withSecondaryCacheTimeout<T>(promise: Promise<T | null>, timeoutMs: number): Promise<T | null> {
let timeout: NodeJS.Timeout;
const timeoutPromise = new Promise<null>(resolve => {
timeout = setTimeout(() => resolve(null), timeoutMs);
timeout.unref?.();
});
try {
return await Promise.race([promise, timeoutPromise]);
} finally {
clearTimeout(timeout);
}
}
} }