In this session the audience will get both theoretical and practical knowledge on what OpenSearch is and how they can work with it by using its NodeJS client. This is a hands-on session where the audience is invited to follow along.

There will be an accompanying GitHub repository to allow the audience to follow me during or after the lecture.

During the session we will: - Overview on OpenSearch architecture. - Set up the cluster and prepare NodeJS project. - Load sample data (we'll use a dataset with 20k recipes). - Explore different types of search queries: term-level, full-text and boolean. - Explore different types of aggregations: metric, bucket, pipeline. - Visualisations with the help of OpenSearch Dashboards.

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