HTTP Status Codes Overview
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Questions and Answers

Which status code indicates that a client has made an invalid request due to a client error?

  • 204
  • 500
  • 400 (correct)
  • 201

    • What does the status code 201 signify?

  • Request successful but no content returned
  • Requested resource not found
  • Creation of a new resource was successful (correct)
  • Unauthorized access to a resource

    • Which status code is used when a requested resource cannot be found?

  • 401
  • 422
  • 404 (correct)
  • 500

    • What does the status code 204 mean?

    <p>Request successful, but no content returned</p> Signup and view all the answers

    Which status code represents an internal server error?

    <p>500</p> Signup and view all the answers

    What is the primary purpose of the Todo Table Models in the project?

    <p>To save records throughout the project</p> Signup and view all the answers

    Which of the following best describes what a database is?

    <p>An organized collection of structured information</p> Signup and view all the answers

    Which component is necessary for modifying and writing data in many databases?

    <p>Structured Query Language (SQL)</p> Signup and view all the answers

    What aspect of user information can be stored in a database?

    <p>User's name, age, email, and password</p> Signup and view all the answers

    Which of the following statements about data is true?

    <p>Data can be controlled and organized.</p> Signup and view all the answers

    What features will the project focus on besides TODOS?

    <p>Authentication and authorization</p> Signup and view all the answers

    Which aspect of user security is emphasized in the project?

    <p>Hashing passwords</p> Signup and view all the answers

    What role does the server play in conjunction with the web page and database?

    <p>To retrieve user information and save Todos</p> Signup and view all the answers

    What file does Alembic look for when invoked?

    <p>alembic.ini</p> Signup and view all the answers

    What does the Alembic directory contain?

    <p>Environmental properties and all revisions</p> Signup and view all the answers

    What is the purpose of an Alembic revision?

    <p>To create a new file for adding database upgrade code</p> Signup and view all the answers

    What does the alembic upgrade command do?

    <p>Runs the migration to apply changes to the database</p> Signup and view all the answers

    Which object is added through the upgrade() function in the given example?

    <p>phone_number</p> Signup and view all the answers

    What is stored in an Alembic revision file?

    <p>Database update scripts and a Revision Id</p> Signup and view all the answers

    What happens to previous data in the database after an upgrade?

    <p>It remains unchanged</p> Signup and view all the answers

    What is the function of the op.add_column in the upgrade example?

    <p>To add a new column to a specified table</p> Signup and view all the answers

    What command is used to run an upgrade migration in Alembic?

    <p>alembic upgrade</p> Signup and view all the answers

    What does the downgrade command 'alembic downgrade -1' accomplish?

    <p>Removes the most recent migration</p> Signup and view all the answers

    Which type of testing focuses on individual components or units of software?

    <p>Unit Testing</p> Signup and view all the answers

    Why are unit tests particularly beneficial during the development phase?

    <p>They identify bugs early in the development process.</p> Signup and view all the answers

    What does testing in software development aim to ensure?

    <p>That the software meets user requirements and specifications.</p> Signup and view all the answers

    What is the primary aim of software testing?

    <p>To identify bugs and errors</p> Signup and view all the answers

    Which is NOT a type of testing mentioned?

    <p>End-to-End Testing</p> Signup and view all the answers

    What is a characteristic of the unit of software being tested?

    <p>It can be tested in isolation.</p> Signup and view all the answers

    What is the purpose of the command 'git branch'?

    <p>To create a new isolated branch</p> Signup and view all the answers

    What command should you use to switch to an existing branch?

    <p>git switch branch</p> Signup and view all the answers

    Which command allows you to create a new branch called 'multiplication-branch'?

    <p>git branch multiplication-branch</p> Signup and view all the answers

    What does the command 'git merge multiplication-branch' accomplish?

    <p>It combines changes from multiplication-branch into the current branch</p> Signup and view all the answers

    What is the primary function of the command 'git checkout branch'?

    <p>To change the root to the selected branch</p> Signup and view all the answers

    As of Git version 2.23, which command is considered the equivalent of 'git checkout branch'?

    <p>git switch branch</p> Signup and view all the answers

    What is the initial branch name that stores all code in a new Git repository?

    <p>master</p> Signup and view all the answers

    What will happen if no command is provided after 'git merge'?

    <p>It will prompt for which branch to merge.</p> Signup and view all the answers

    Study Notes

    Successful Status Codes

    • 200: OK - Standard response for successful requests, typically for successful GET requests that return data.
    • 201: Created - Request was successful, creating a new resource. Used when a POST creates an entity.
    • 204: No Content - Request was successful, did not create an entity nor return anything. Often used with PUT requests.

    Client Error Status Codes

    • 400: Bad Request - Cannot process the request due to a client error. Commonly used for invalid request methods.
    • 401: Unauthorized - Client does not have valid authentication for the requested resource.
    • 404: Not Found - The requested resource cannot be found.
    • 422: Unprocessable Entity - Semantic errors in the client request.

    Server Status Codes

    • 500: Internal Server Error - Generic error message indicating an unexpected issue on the server.

    Project 3 Overview

    • Focus on TO-DOs instead of BOOKS.
    • Includes:
      • Full SQL Database
      • Authentication and Authorization
      • Hashing Passwords

    Creating a Todo Table

    • New Todo table models will be created for the application.
    • Used to save records throughout the project.
    • Involves interactions between the web page, server, database, authorization & authentication, and retrieving/saving Todos.

    What is a Database?

    • An organized collection of structured information stored in a computer system.
    • Data can be easily accessed, modified, controlled, and organized.
    • Many databases use SQL (Structured Query Language) to modify and write data.
    • Data can relate to any object, such as a user's name, age, email, and password.

    Alembic and Database Integrity

    • Alembic is a tool used for database migrations.
    • Creates two new items in the project directory:
      • alembic.ini (configuration file)
      • alembic directory (holds environmental properties and revisions)

    Alembic.ini File

    • Contains configuration information for Alembic.

    Alembic Directory

    • Holds environmental properties for Alembic.
    • Contains all revisions of the application.
    • Used for upgrading and downgrading migrations.

    Alembic Revisions

    • Used to create new Alembic files for database upgrades.
    • Each new revision has a unique Revision ID.

    Alembic Upgrade

    • Enhances the database with new columns or changes.
    • Does not modify existing data in the database.
    • Example: alembic upgrade

    Alembic Downgrade

    • Reverts database changes made by migrations.
    • Example: alembic downgrade -1 (reverts the last migration)

    Testing Overview

    • A way to ensure the application works as intended.
    • Part of the Software Development Lifecycle (SDLC) that aims to:
      • Identify bugs, errors, and defects.
      • Meet user requirements and specifications.
      • Ensure software quality, reliability, security, and user-friendliness.

    Testing Types

    • Manual Testing - Manually performing tests without automation.
    • Unit Testing - Testing individual components or units in isolation.
    • Integration Testing - Testing how different units or components interact.

    Unit Testing

    • Involves testing individual parts of the software in isolation.
    • Validates that each unit performs as designed.
    • Developers write unit tests during the development phase.
    • Tests are automated and executed by testing frameworks (e.g., Pytest).
    • Helps identify bugs early in development.

    Git Example

    • git branch - Creates a new isolated branch.
    • git checkout branch - Changes the root directory to the selected branch.
    • git switch branch - Same as git checkout branch (newer command introduced in Git 2.23).

    Git Branches

    • All code is initially in the master branch.
    • New branches can be created to work on specific features or fixes.
    • Examples:
      • Creating a multiplication-branch from master.
      • Checking out multiplication-branch.
      • Merging changes from multiplication-branch back into master.

    GitHub

    • GitHub is a platform for hosting and managing Git repositories.
    • Used for version control, collaboration, and sharing code with others.

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    Related Documents

    FastAPI + Slides PDF

    Description

    Test your knowledge on HTTP status codes including successful, client error, and server error responses. This quiz covers common codes like 200, 404, and 500, important for web development and API handling.

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