Metadata filtering in vector stores in LangChain - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a filter dictionary for metadata with key 'category' and value 'science'.

LangChain

filter = [1]

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

A'category:science'

B['category', 'science']

C{'category': 'science'}

D('category', 'science')

Attempts:

3 left

💡 Hint

Common Mistakes

Using a list or tuple instead of a dictionary.

Using a string instead of a dictionary.

The filter must be a dictionary with the key and value to match metadata entries.

2fill in blank

medium

Complete the code to pass the filter when calling the vector store's search method.

LangChain

results = vector_store.search(query, filter=[1])

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

A{'category': 'science'}

B['category', 'science']

C'category=science'

D('category', 'science')

Attempts:

3 left

💡 Hint

Common Mistakes

Passing a list or tuple instead of a dictionary.

Passing a string instead of a dictionary.

The filter argument expects a dictionary specifying metadata keys and values to filter results.

3fill in blank

hard

Fix the error in the filter dictionary to correctly filter metadata where 'year' is 2023.

LangChain

filter = [1]

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

A{year: '2023'}

B{'year': 2023}

C{'year': 'twenty twenty three'}

D['year', 2023]

Attempts:

3 left

💡 Hint

Common Mistakes

Using unquoted keys.

Using string instead of integer for year.

Using a list instead of a dictionary.

The filter must be a dictionary with the key as a string and the value as the integer 2023.

4fill in blank

hard

Fill both blanks to create a filter that matches documents with 'author' equal to 'Alice' and 'published' equal to True.

LangChain

filter = [1]

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

A{'author': 'Alice', 'published': True}

B{'author': 'Alice'}

C{'published': True}

D{'author': 'Bob', 'published': False}

Attempts:

3 left

💡 Hint

Common Mistakes

Including only one key in the filter.

Using incorrect values for keys.

The filter dictionary must include both keys with their correct values to match the metadata.

5fill in blank

hard

Fill all three blanks to create a filter dictionary that matches documents with 'category' 'tech', 'year' 2024, and 'verified' True.

LangChain

filter = [1]

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

A{'year': 2024}

B{'category': 'tech'}

C{'verified': True}

D{'category': 'tech', 'year': 2024, 'verified': True}

Attempts:

3 left

💡 Hint

Common Mistakes

Using separate dictionaries instead of one combined dictionary.

Missing one or more keys in the filter.

The filter dictionary must include all three keys with their correct values to filter properly.