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Getting started with Bleve using BoltDB

I am trying to wrap my head around Bleve and I understand everything that is going on in the tutorials, videos and documentation. I however get very confused when I am using it on BoltDB and don't know how to start.

Say I have an existing BoltDB database called data.db populated with values of struct type Person

type Person struct {
   ID int          `json:"id"`             
   Name string     `json:"name"` 
   Age int         `json:"age"`
   Sex string      `json:"sex"`
}

How do I index this data so that I can do a search? How do I handle the indexing of data that will be stored in the database in the future?

Any help will be highly appreciated.

Solution

  • Bleve uses BoltDB as one of several backend stores and is separate from where you store your application data. To index your data in Bleve, simply add your Index:

    index.Index(person.ID, person)

    That index exists separately from your application data (whether it's in Bolt, Postgres, etc).

    To retrieve your data, you'll need to construct a search request using bleve.NewSearchRequest(), then call Index.Search(). This will return a SearchResult which includes a Hits field where you can retrieve the ID for your object. You can use this to look up the object in your application data store.

    Disclaimer: I am the author of BoltDB.