Podcast
Questions and Answers
Which status code indicates that a client has made an invalid request due to a client error?
Which status code indicates that a client has made an invalid request due to a client error?
What does the status code 201 signify?
What does the status code 201 signify?
Which status code is used when a requested resource cannot be found?
Which status code is used when a requested resource cannot be found?
What does the status code 204 mean?
What does the status code 204 mean?
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Which status code represents an internal server error?
Which status code represents an internal server error?
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What is the primary purpose of the Todo Table Models in the project?
What is the primary purpose of the Todo Table Models in the project?
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Which of the following best describes what a database is?
Which of the following best describes what a database is?
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Which component is necessary for modifying and writing data in many databases?
Which component is necessary for modifying and writing data in many databases?
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What aspect of user information can be stored in a database?
What aspect of user information can be stored in a database?
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Which of the following statements about data is true?
Which of the following statements about data is true?
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What features will the project focus on besides TODOS?
What features will the project focus on besides TODOS?
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Which aspect of user security is emphasized in the project?
Which aspect of user security is emphasized in the project?
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What role does the server play in conjunction with the web page and database?
What role does the server play in conjunction with the web page and database?
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What file does Alembic look for when invoked?
What file does Alembic look for when invoked?
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What does the Alembic directory contain?
What does the Alembic directory contain?
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What is the purpose of an Alembic revision?
What is the purpose of an Alembic revision?
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What does the alembic upgrade
command do?
What does the alembic upgrade
command do?
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Which object is added through the upgrade()
function in the given example?
Which object is added through the upgrade()
function in the given example?
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What is stored in an Alembic revision file?
What is stored in an Alembic revision file?
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What happens to previous data in the database after an upgrade?
What happens to previous data in the database after an upgrade?
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What is the function of the op.add_column
in the upgrade example?
What is the function of the op.add_column
in the upgrade example?
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What command is used to run an upgrade migration in Alembic?
What command is used to run an upgrade migration in Alembic?
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What does the downgrade command 'alembic downgrade -1' accomplish?
What does the downgrade command 'alembic downgrade -1' accomplish?
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Which type of testing focuses on individual components or units of software?
Which type of testing focuses on individual components or units of software?
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Why are unit tests particularly beneficial during the development phase?
Why are unit tests particularly beneficial during the development phase?
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What does testing in software development aim to ensure?
What does testing in software development aim to ensure?
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What is the primary aim of software testing?
What is the primary aim of software testing?
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Which is NOT a type of testing mentioned?
Which is NOT a type of testing mentioned?
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What is a characteristic of the unit of software being tested?
What is a characteristic of the unit of software being tested?
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What is the purpose of the command 'git branch'?
What is the purpose of the command 'git branch'?
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What command should you use to switch to an existing branch?
What command should you use to switch to an existing branch?
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Which command allows you to create a new branch called 'multiplication-branch'?
Which command allows you to create a new branch called 'multiplication-branch'?
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What does the command 'git merge multiplication-branch' accomplish?
What does the command 'git merge multiplication-branch' accomplish?
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What is the primary function of the command 'git checkout branch'?
What is the primary function of the command 'git checkout branch'?
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As of Git version 2.23, which command is considered the equivalent of 'git checkout branch'?
As of Git version 2.23, which command is considered the equivalent of 'git checkout branch'?
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What is the initial branch name that stores all code in a new Git repository?
What is the initial branch name that stores all code in a new Git repository?
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What will happen if no command is provided after 'git merge'?
What will happen if no command is provided after 'git merge'?
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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
frommaster
. - Checking out
multiplication-branch
. - Merging changes from
multiplication-branch
back intomaster
.
- Creating a
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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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.