task-log-cache
v1.0.3
Published
redis-based task-log-cache
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task-log-cache
Redis-based task status log/cache
Installation
npm i ioredis -S
npm i task-log-cache -S
Dependencies
Developers using this library must pass a configured npm:ioredis
client on initialization.
npm:@hapi/joi
is used for initial validation.
Initialization
Below is a sample configuration to:
const IoRedis = require('ioredis');
const taskStatusCache = require('task-status-cache');
const redisServerLocal = {
host: "localhost",
port: 6379,
retryStrategy(times) {
const delay = Math.min(times * 100, 2000);
return delay;
}
};
const ioredis = new IoRedis(redisServerLocal);
const tasklogger = taskStatusCache({
ioredis,
prefix: 'task:',
index: 'tasks',
ttl: 3600*24*3, // keep 3 days
ttlRenewOnWrite: true,
ttlRenewOnRead: false
});
Usage
await tasklogger.push(key, item);
await tasklogger.summary()
await tasklogger.get(key, ifrom, ito);
await tasklogger.delete(key)
await tasklogger.reap()
Tests
To test:
First, spin up a redis database on localhost using docker
docker run -v /tmp/data:/data \
--name "red" \
-d \
-p 127.0.0.1:6379:6379 \
redis redis-server --appendonly yes
Warning: Testing will FLUSHALL and DELETES THE ENTIRE DATABSE on localhost.
npm test
After running npm test, you may want to delete the redis docker container.
docker kill red
docker rm red
Copyright
Copyright 2019 Paul Brewer, Economic and Financial Technology Consulting LLC
License
The MIT license
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.