Match query in Elasticsearch - Mini Project: Build & Apply

Elasticsearch Match Query

📖 Scenario: You are working with a collection of books stored in Elasticsearch. Each book has a title and an author. You want to find books by searching for words in their titles.

🎯 Goal: Build an Elasticsearch match query to find books whose titles contain a specific word.

📋 What You'll Learn

Create an index called books with sample book documents

Set a search word in a variable called search_word

Write a match query to find books with titles matching search_word

Print the search query JSON

💡 Why This Matters

🌍 Real World

Searching text fields in Elasticsearch is common for websites and apps that show books, articles, or products.

💼 Career

Knowing how to write match queries helps you build search features and work with Elasticsearch in many developer and data roles.

1

Create the books index with sample data

Create a variable called books that holds a list of dictionaries. Each dictionary should represent a book with keys title and author. Use these exact entries: {"title": "The Great Gatsby", "author": "F. Scott Fitzgerald"}, {"title": "Great Expectations", "author": "Charles Dickens"}, and {"title": "The Grapes of Wrath", "author": "John Steinbeck"}.

Elasticsearch

# Create a list called books with the given book dictionaries
# Your code here

Need a hint?

Use a list with three dictionaries exactly as shown.

2

Set the search word

Create a variable called search_word and set it to the string "Great".

Elasticsearch

books = [
    {"title": "The Great Gatsby", "author": "F. Scott Fitzgerald"},
    {"title": "Great Expectations", "author": "Charles Dickens"},
    {"title": "The Grapes of Wrath", "author": "John Steinbeck"}
]
# Set search_word to "Great"
# Your code here

Need a hint?

Assign the string "Great" to the variable search_word.

3

Write the match query

Create a variable called match_query that holds a dictionary representing an Elasticsearch match query. The query should search the title field for the value in search_word. Use this exact structure: {"query": {"match": {"title": search_word}}}.

Elasticsearch

books = [
    {"title": "The Great Gatsby", "author": "F. Scott Fitzgerald"},
    {"title": "Great Expectations", "author": "Charles Dickens"},
    {"title": "The Grapes of Wrath", "author": "John Steinbeck"}
]
search_word = "Great"
# Create match_query dictionary for match query on title with search_word
# Your code here

Need a hint?

Use a nested dictionary with keys "query", "match", and "title".

4

Print the match query

Write a print statement to display the match_query variable.

Elasticsearch

books = [
    {"title": "The Great Gatsby", "author": "F. Scott Fitzgerald"},
    {"title": "Great Expectations", "author": "Charles Dickens"},
    {"title": "The Grapes of Wrath", "author": "John Steinbeck"}
]
search_word = "Great"
match_query = {"query": {"match": {"title": search_word}}}
# Print the match_query dictionary
# Your code here

Need a hint?

Use print(match_query) to show the query.