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feat(sockets): message delivery guarantees + offline queue #300

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Merged
Tybravo merged 1 commit into from
Oct 4, 2026
Merged

feat(sockets): message delivery guarantees + offline queue #300

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13 changes: 11 additions & 2 deletions .env.example
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Original file line number Diff line number Diff line change
Expand Up @@ -308,10 +308,19 @@ SOCKET_PING_INTERVAL_MS=25000
# [default: 2]
SOCKET_MAX_MISSED_PONGS=2

# How long, in ms, a client has to ACK a queued socket message before it is
# dropped. [default: 15000]
# How long, in ms, a client has to ACK a queued socket message before the
# server re-delivers it (retry). [default: 15000]
SOCKET_MESSAGE_ACK_TIMEOUT_MS=15000

# Maximum number of unacknowledged messages retained per driver. When the
# bound is exceeded the oldest queued message is evicted. [default: 100]
SOCKET_MESSAGE_QUEUE_MAX=100

# Maximum number of automatic re-delivery attempts per queued message after
# ACK timeouts. Once exhausted the message stays queued for the next reconnect
# flush but is no longer retried automatically. [default: 5]
SOCKET_MESSAGE_MAX_RETRIES=5

# ─── Shutdown ────────────────────────────────────────────────────────────────

# How long, in ms, to wait for in-flight HTTP/Socket/DB work during SIGTERM /
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6 changes: 6 additions & 0 deletions src/config/env.ts
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Expand Up @@ -85,6 +85,10 @@ interface EnvConfig {
SOCKET_MAX_MISSED_PONGS: number;
/** Time (ms) a queued socket message waits for an ack before retry. Default: 15000 */
SOCKET_MESSAGE_ACK_TIMEOUT_MS: number;
/** Max unacknowledged messages retained per driver before oldest are evicted. Default: 100 */
SOCKET_MESSAGE_QUEUE_MAX: number;
/** Max automatic re-delivery attempts per queued message after ACK timeouts. Default: 5 */
SOCKET_MESSAGE_MAX_RETRIES: number;
/** Interval (ms) between periodic socket token expiry checks. Default: 60000 */
SOCKET_TOKEN_CHECK_INTERVAL_MS: number;
/** Grace period (ms) granted after a socket token expires. Default: 30000 */
Expand Down Expand Up @@ -298,6 +302,8 @@ const envSchema = z.object({
SOCKET_PING_TIMEOUT_MS: z.coerce.number().int().min(1000).default(20000),
SOCKET_MAX_MISSED_PONGS: z.coerce.number().int().min(1).max(10).default(2),
SOCKET_MESSAGE_ACK_TIMEOUT_MS: z.coerce.number().int().min(1000).default(15000),
SOCKET_MESSAGE_QUEUE_MAX: z.coerce.number().int().min(1).default(100),
SOCKET_MESSAGE_MAX_RETRIES: z.coerce.number().int().min(0).max(20).default(5),
SOCKET_TOKEN_CHECK_INTERVAL_MS: z.coerce.number().int().min(1000).default(60000),
SOCKET_TOKEN_GRACE_PERIOD_MS: z.coerce.number().int().min(0).default(30000),
SYNC_BATCH_SIZE_LIMIT: z.coerce.number().int().min(1).max(10000).default(500),
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