1 | import redis from 'redis';
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2 | import clui from 'clui';
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3 |
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4 | let countdown = new clui.Spinner();
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5 | let started;
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6 |
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7 | export const createClient = (config, { debug } = { debug: false }) => {
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8 | const client = redis.createClient({
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9 | ...config,
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10 | retry_strategy: ({ attempt, total_retry_time, error, time_connected }) => {
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11 | if (attempt > 20) {
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12 | return;
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13 | }
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14 |
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15 | return Math.min(attempt * 100, 3000);
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16 | },
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17 | });
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18 |
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19 | client.on('connect', () => {
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20 | if (debug) {
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21 | started = false;
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22 | countdown.stop();
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23 | }
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24 | });
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25 |
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26 | client.on('reconnecting', ({ delay, attempt }) => {
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27 | if (debug) {
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28 | countdown.message(
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29 | `attempting (${attempt}) to reconnect in ${delay}ms...`
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30 | );
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31 | if (!started) {
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32 | started = true;
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33 | countdown.start();
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34 | }
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35 | }
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36 | });
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37 |
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38 | process.on('exit', () => {
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39 | debug && console.log('client is quiting forcefully');
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40 | client.end(true);
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41 | });
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42 |
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43 | return client;
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44 | };
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45 |
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46 | const defaultClient = createClient({
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47 | url: process.env.REDIS_URL,
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48 | });
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49 |
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50 | export default defaultClient;
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51 |
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52 | export type RedisClientType = typeof defaultClient;
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