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indexingredissails.jswaterline
Majed Badawi
Majed Badawi

Reputation: 28424

Sails.js/Redis: How to implement secondary indexing

I am using sails-redis adapter. How can I set a secondary index for an attribute in a model and fetch the data accordingly?

Upvotes: 0

Views: 230

Answers (1)

Alexander Gugel
Alexander Gugel

Reputation: 31

I haven't used the Sails Redis adapter, so take my advice with a grain of salt. Based on their public documentation, it seems like it does not support any form of indexing - it's just a wrapper around the core Redis commands:

This adapter does not support the Semantic or Queryable interfaces. Instead, it simply provides robust, managed access to the underlying Redis client.

Source: https://www.npmjs.com/package/sails-redis

As such, you'll have to manually create secondary indices. Redis provides a number of data structures that come in handy here, such as sorted sets, sets, and lists.

I wrote a bit of an article about how to create those indices, which might be a useful read.

Upvotes: 1

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