Optimasi redis history

Adhidarma Hadiwinoto
1 parent a2a0be1274
Showing 1 changed file with 8 additions and 3 deletions Side-by-side Diff
lib/history.js
 'use strict';
  
+const MAX_HISTORY = 1000;
+
 const redis = require('redis');
 const CircularBuffer = require("circular-buffer");
  
@@ -7,13 +9,13 @@ const config = require(&#39;komodo-sdk/config&#39;);
 const logger = require('komodo-sdk/logger');
  
 const redisClient = redis.createClient(config.redis || { host: '127.0.0.1' });
-const history = new CircularBuffer(1000);
+const history = new CircularBuffer(MAX_HISTORY);
  
 const REDIS_KEYWORD = `SHAKIR_SMS_HISTORY_${config.name||'SMS'}`;
  
 function fetchFromRedis() {
     redisClient.LRANGE(REDIS_KEYWORD, 0, -1, (err, reply) => {
-        reply.forEach((el) => {
+        reply.reverse().forEach((el) => {
             try {
                 history.push(JSON.parse(el));
             } catch (e) {
@@ -26,7 +28,10 @@ function fetchFromRedis() {
 fetchFromRedis();
  
 function push(item) {
-    redisClient.LPUSH(REDIS_KEYWORD, JSON.stringify(item));
+    redisClient.LPUSH(REDIS_KEYWORD, JSON.stringify(item), () => {
+        redisClient.LTRIM(REDIS_KEYWORD, 0, MAX_HISTORY);
+    });
+
     history.push(item);
 }
1	1	'use strict';
2	2
	3	+const MAX_HISTORY = 1000;
	4	+
3	5	const redis = require('redis');
4	6	const CircularBuffer = require("circular-buffer");
5	7
...	...	@@ -7,13 +9,13 @@ const config = require('komodo-sdk/config');
7	9	const logger = require('komodo-sdk/logger');
8	10
9	11	const redisClient = redis.createClient(config.redis \|\| { host: '127.0.0.1' });
10		-const history = new CircularBuffer(1000);
	12	+const history = new CircularBuffer(MAX_HISTORY);
11	13
12	14	const REDIS_KEYWORD = `SHAKIR_SMS_HISTORY_${config.name\|\|'SMS'}`;
13	15
14	16	function fetchFromRedis() {
15	17	redisClient.LRANGE(REDIS_KEYWORD, 0, -1, (err, reply) => {
16		- reply.forEach((el) => {
	18	+ reply.reverse().forEach((el) => {
17	19	try {
18	20	history.push(JSON.parse(el));
19	21	} catch (e) {
...	...	@@ -26,7 +28,10 @@ function fetchFromRedis() {
26	28	fetchFromRedis();
27	29
28	30	function push(item) {
29		- redisClient.LPUSH(REDIS_KEYWORD, JSON.stringify(item));
	31	+ redisClient.LPUSH(REDIS_KEYWORD, JSON.stringify(item), () => {
	32	+ redisClient.LTRIM(REDIS_KEYWORD, 0, MAX_HISTORY);
	33	+ });
	34	+
30	35	history.push(item);
31	36	}
32	37