Highlighting Search Results
Add highlighting to your search results to visually emphasize the matching terms within the returned documents, improving user experience.
Why Highlight Results?
Imagine searching for a recipe and seeing 'chicken' highlighted exactly where it appears in the ingredients and steps. That's highlighting!
It visually emphasizes the matching terms in your search results, making it much easier for users to quickly scan and find relevant information.
- Improved User Experience: Users quickly spot why a document is relevant.
- Contextual Clues: Provides snippets of text around the match, giving context.
- Faster Information Retrieval: Reduces time spent reading irrelevant parts.
Your First Highlight
Adding basic highlighting to your Elasticsearch search is straightforward. You just need to include a highlight block in your search request.
This block specifies which fields you want to highlight. By default, Elasticsearch wraps the matching terms with <em> and </em> tags.
curl -X GET "localhost:9200/products/_search?pretty" \
-H 'Content-Type: application/json' \
-d'
{
"query": {
"match": {
"description": "lightweight laptop"
}
},
"highlight": {
"fields": {
"description": {}
}
}
}'All lessons in this course
- Phrase and Proximity Searches
- Fuzzy and Wildcard Queries
- Highlighting Search Results
- Aggregations for Faceted Search