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node-redis/docs/scan-iterators.md
Shaya Potter b2d35c5286 V5 bringing RESP3, Sentinel and TypeMapping to node-redis 
RESP3 Support
   - Some commands responses in RESP3 aren't stable yet and therefore return an "untyped" ReplyUnion.
 
Sentinel

TypeMapping

Correctly types Multi commands

Note: some API changes to be further documented in v4-to-v5.md
2024-10-15 17:46:52 +03:00

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Scan Iterators

⚠️ The scan iterators API in v5 has breaking changes from the previous version. For more details, refer to the v4-to-v5 guide.

SCAN results can be looped over using async iterators:

for await (const keys of client.scanIterator()) {
  const values = await client.mGet(keys);
}

This works with HSCAN, SSCAN, and ZSCAN too:

for await (const entries of client.hScanIterator('hash')) {}
for await (const members of client.sScanIterator('set')) {}
for await (const membersWithScores of client.zScanIterator('sorted-set')) {}

You can override the default options by providing a configuration object:

client.scanIterator({
  cursor: '0', // optional, defaults to '0'
  TYPE: 'string', // `SCAN` only
  MATCH: 'patter*',
  COUNT: 100
});