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support for REJSON

See original GitHub issue

Hello @luin ,

Do you plan to add the support of the command for REJSON product from RedisLab ?

For now I using call method, it works fine but if we would have them included it would be great.

Thanks

Issue Analytics

State:
Created 4 years ago
Reactions:2
Comments:8

Top GitHub Comments

5reactions

nidomirocommented, Nov 9, 2020

I had the same problem while searching for a lib to handle RedisJson. The call method was renamed. Here is a working example:

import * as IORedis from "ioredis";
const redis = new IORedis();

function printWithType(v: unknown) {
  console.log("---")
  console.log("Type: ", typeof v)
  console.log("Value: ", v)
  console.log("---")
}

redis.send_command("JSON.SET", "my:key", ".",  '{"id": "abc", "groups": ["A", "B", "C"]}')
  .then(printWithType)
  .catch(e => (console.error(e)))

redis.send_command("JSON.GET", "my:key")
  .then(printWithType)
  .catch(e => (console.error(e)))

redis.send_command("JSON.GET", "my:key", ".id")
  .then(printWithType)
  .catch(e => (console.error(e)))

redis.send_command("JSON.GET", "my:key", ".groups")
  .then(printWithType)
  .catch(e => (console.error(e)))

The output is:

---
Type:  string
Value:  OK
---
---
Type:  string
Value:  {"id":"abc","groups":["A","B","C"]}
---
---
Type:  string
Value:  "abc"
---
---
Type:  string
Value:  ["A","B","C"]
---

1reaction

OmarOmeiricommented, Jul 28, 2021

redis.send_command("JSON.SET", "my:key", ".",  '{"id": "abc", "groups": ["A", "B", "C"]}')
  .then(printWithType)
  .catch(e => (console.error(e)))

redis.send_command("JSON.GET", "my:key")
  .then(printWithType)
  .catch(e => (console.error(e)))

redis.send_command("JSON.GET", "my:key", ".id")
  .then(printWithType)
  .catch(e => (console.error(e)))

redis.send_command("JSON.GET", "my:key", ".groups")
  .then(printWithType)
  .catch(e => (console.error(e)))

Why do I get errors? all commands are unknown for me. using the same code you provided with Node 16.x?

ReplyError: ERR unknown command 'JSON.SET'
    at parseError (E:\Documents\CODE\WebDev\Lullo\backend\src\node_modules\redis-parser\lib\parser.js:179:12)
    at parseType (E:\Documents\CODE\WebDev\Lullo\backend\src\node_modules\redis-parser\lib\parser.js:302:14) {
  command: {
    name: 'JSON.SET',
    args: [ 'my:key', '.', '{"id": "abc", "groups": ["A", "B", "C"]}' ]
  }
}
ReplyError: ERR unknown command 'JSON.GET'
    at parseError (E:\Documents\CODE\WebDev\Lullo\backend\src\node_modules\redis-parser\lib\parser.js:179:12)
    at parseType (E:\Documents\CODE\WebDev\Lullo\backend\src\node_modules\redis-parser\lib\parser.js:302:14) {
  command: { name: 'JSON.GET', args: [ 'my:key' ] }
}
ReplyError: ERR unknown command 'JSON.GET'
    at parseError (E:\Documents\CODE\WebDev\Lullo\backend\src\node_modules\redis-parser\lib\parser.js:179:12)
    at parseType (E:\Documents\CODE\WebDev\Lullo\backend\src\node_modules\redis-parser\lib\parser.js:302:14) {
  command: { name: 'JSON.GET', args: [ 'my:key', '.id' ] }
}
ReplyError: ERR unknown command 'JSON.GET'
    at parseError (E:\Documents\CODE\WebDev\Lullo\backend\src\node_modules\redis-parser\lib\parser.js:179:12)
    at parseType (E:\Documents\CODE\WebDev\Lullo\backend\src\node_modules\redis-parser\lib\parser.js:302:14) {
  command: { name: 'JSON.GET', args: [ 'my:key', '.groups' ] }
}

UPDATE

Figured it out. Apparently my connection was not established. When running the commands. This made it work for me:

import Redis from 'ioredis';

const redis = new Redis('redis://<user>:<password>@redis-service.com:6379/');

redis.connect(() => {
  function printWithType(v: unknown) {
    console.log('---');
    console.log('Type: ', typeof v);
    console.log('Value: ', v);
    console.log('---');
  }

  redis.send_command('JSON.SET', 'my:key', '.', '{"id": "abc", "groups": ["A", "B", "C"]}')
    .then(printWithType)
    .catch((e) => (console.error(e)));

  redis.send_command('JSON.GET', 'my:key')
    .then(printWithType)
    .catch((e) => (console.error(e)));

  redis.send_command('JSON.GET', 'my:key', '.id')
    .then(printWithType)
    .catch((e) => (console.error(e)));

  redis.send_command('JSON.GET', 'my:key', '.groups')
    .then(printWithType)
    .catch((e) => (console.error(e)));
});