Pydantic model definition in FastAPI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a Pydantic model with a single field 'name' of type string.

FastAPI

from pydantic import BaseModel

class User([1]):
    name: str

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

ABaseModel

BModel

CSchema

DDataModel

Attempts:

3 left

💡 Hint

Common Mistakes

Using a wrong base class name like Model or Schema.

Not inheriting from any class.

The Pydantic model must inherit from BaseModel to work properly.

2fill in blank

medium

Complete the code to add an integer field 'age' to the Pydantic model.

FastAPI

from pydantic import BaseModel

class Person(BaseModel):
    name: str
    age: [1]

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Abool

Bstring

Cfloat

Dint

Attempts:

3 left

💡 Hint

Common Mistakes

Using string or float for age.

Using bool by mistake.

The field age should be an integer, so use int as the type.

3fill in blank

hard

Fix the error in the Pydantic model by completing the missing import.

FastAPI

from pydantic import [1]

class Product(BaseModel):
    id: int
    price: float

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AField

BSchema

CBaseModel

DModel

Attempts:

3 left

💡 Hint

Common Mistakes

Importing wrong classes like Schema or Model.

Forgetting to import BaseModel.

The BaseModel class must be imported from Pydantic to define models.

4fill in blank

hard

Fill both blanks to define a Pydantic model with a required string field 'title' and an optional integer field 'year'.

FastAPI

from pydantic import BaseModel

from typing import [1]

class Movie(BaseModel):
    title: str
    year: [2][int] = None

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AOptional

BList

CDict

DSet

Attempts:

3 left

💡 Hint

Common Mistakes

Using List or Dict instead of Optional.

Not importing Optional.

Use Optional from typing to mark year as optional.

5fill in blank

hard

Fill all three blanks to define a Pydantic model with a field 'tags' that is a list of strings with a default empty list.

FastAPI

from pydantic import BaseModel, [1]
from typing import [2]

class BlogPost(BaseModel):
    tags: [2][str] = [3](default_factory=list)

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

AField

BList

Clist[str]

DOptional

Attempts:

3 left

💡 Hint

Common Mistakes

Using plain list[str] without importing List.

Not using Field for default values.

Use Field to set defaults and List from typing to type the list of strings.