Discover for data exploration in Elasticsearch - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to search all documents in the index.

Elasticsearch

GET /my-index/_search
{
  "[1]": {
    "match_all": {}
  }
}

Drag options to blanks, or click blank then click option'

Asort

Bfilter

Cquery

Daggs

Attempts:

3 left

💡 Hint

Common Mistakes

Using filter instead of query causes no results.

Using sort or aggs in place of query causes errors.

The query key is used to specify the search criteria. Using match_all inside query returns all documents.

2fill in blank

medium

Complete the code to return only the first 5 documents.

Elasticsearch

GET /my-index/_search
{
  "size": [1],
  "query": { "match_all": {} }
}

Drag options to blanks, or click blank then click option'

A10

B5

C0

D50

Attempts:

3 left

💡 Hint

Common Mistakes

Setting size to 0 returns no documents.

Using a large number like 50 returns more than needed.

The size parameter controls how many documents are returned. Setting it to 5 returns the first five documents.

3fill in blank

hard

Fix the error in the query to filter documents where the field 'status' is 'active'.

Elasticsearch

GET /my-index/_search
{
  "query": {
    "term": { "[1]": "active" }
  }
}

Drag options to blanks, or click blank then click option'

Astatus

Bterm

Cactive

Dstate

Attempts:

3 left

💡 Hint

Common Mistakes

Using the value 'active' as the key causes errors.

Using a wrong field name like 'state' returns no results.

The term query requires the exact field name. Here, the field is status, so it must be used as the key.

4fill in blank

hard

Fill both blanks to sort documents by 'timestamp' in descending order.

Elasticsearch

GET /my-index/_search
{
  "sort": [
    { "[1]": { "order": "[2]" } }
  ]
}

Drag options to blanks, or click blank then click option'

Atimestamp

Bdesc

Casc

Ddate

Attempts:

3 left

💡 Hint

Common Mistakes

Using date instead of timestamp if the field is named differently.

Using asc instead of desc to get newest first.

Sorting requires the field name and the order. Here, sorting by timestamp in desc order shows newest documents first.

5fill in blank

hard

Fill all three blanks to aggregate the average 'price' of products where 'category' is 'books'.

Elasticsearch

GET /my-index/_search
{
  "query": {
    "term": { "[1]": "books" }
  },
  "aggs": {
    "average_price": { "avg": { "field": "[2]" } }
  },
  "size": [3]
}

Drag options to blanks, or click blank then click option'

Acategory

Bprice

C0

D5

Attempts:

3 left

💡 Hint

Common Mistakes

Setting size to a positive number shows documents instead of only aggregation.

Using wrong field names for filtering or aggregation.

The term query filters by category 'books'. The aggregation calculates the average of the price field. Setting size to 0 hides document hits, showing only aggregation results.