Match phrase query in Elasticsearch - Mini Project: Build & Apply

Match Phrase Query in Elasticsearch

📖 Scenario: You are working with a small collection of book data stored in Elasticsearch. You want to find books that contain an exact phrase in their description.

🎯 Goal: Build an Elasticsearch query that uses a match_phrase to find books with the exact phrase "deep learning" in their description.

📋 What You'll Learn

Create an index called books with sample book documents

Add a configuration variable for the phrase to search

Write a match_phrase query using the phrase variable

Print the query JSON to see the final search request

💡 Why This Matters

🌍 Real World

Searching for exact phrases in text fields is common in search engines, like finding books or articles containing specific terms.

💼 Career

Understanding how to build match_phrase queries is useful for roles involving search engine development, data retrieval, and Elasticsearch administration.

1

Create the books index with sample data

Create a variable called books_index that holds a JSON object with two book documents. Each document should have id, title, and description. Use these exact entries: {"id": 1, "title": "AI Basics", "description": "An introduction to artificial intelligence."} and {"id": 2, "title": "Deep Learning Guide", "description": "A comprehensive guide to deep learning techniques."}

Elasticsearch

# Create a variable called books_index with two book documents
# Your code here

Need a hint?

Use a list of dictionaries to represent the books. Each dictionary should have keys: id, title, and description.

2

Set the phrase to search

Create a variable called search_phrase and set it to the string "deep learning".

Elasticsearch

books_index = [
    {"id": 1, "title": "AI Basics", "description": "An introduction to artificial intelligence."},
    {"id": 2, "title": "Deep Learning Guide", "description": "A comprehensive guide to deep learning techniques."}
]
# Create a variable called search_phrase with the value "deep learning"
# Your code here

Need a hint?

Assign the exact string "deep learning" to the variable search_phrase.

3

Build the match_phrase query

Create a variable called query that holds a JSON object for an Elasticsearch match_phrase query. The query should search the description field for the phrase stored in search_phrase.

Elasticsearch

books_index = [
    {"id": 1, "title": "AI Basics", "description": "An introduction to artificial intelligence."},
    {"id": 2, "title": "Deep Learning Guide", "description": "A comprehensive guide to deep learning techniques."}
]
search_phrase = "deep learning"
# Create a variable called query with a match_phrase query on description using search_phrase
# Your code here

Need a hint?

Use the match_phrase key inside query with the field description set to search_phrase.

4

Print the final query JSON

Write a print statement to display the query variable.

Elasticsearch

books_index = [
    {"id": 1, "title": "AI Basics", "description": "An introduction to artificial intelligence."},
    {"id": 2, "title": "Deep Learning Guide", "description": "A comprehensive guide to deep learning techniques."}
]
search_phrase = "deep learning"
query = {
    "query": {
        "match_phrase": {
            "description": search_phrase
        }
    }
}
# Print the query variable
# Your code here

Need a hint?

Use print(query) to show the final query JSON.