Uri
A URI (Uniform Resource Identifier) is a standardized character sequence that identifies an abstract or physical resource.
ASP.NET Core in Action, 3e
A URL is a standardized identifier that specifies the location of a resource and may include a hostname and path.
- How it is used
- Uses URLs to connect browser requests, application listening addresses, redirects, and fixed-path middleware handlers.
- How deep it goes
- Defines a URL’s hostname and path, then demonstrates configuration and safe handling rather than specifying URI syntax in detail.
- Examples
- Shows http://localhost:5000, a login returnUrl check, and a security.txt middleware handler.
- What you can do after
- Operate/configure it with ASPNETCORE_URLS or --urls, and diagnose/debug with it by validating user-provided redirect URLs.
Building Web APIs with ASP.NET Core
A URL is a Uniform Resource Locator that identifies the location of a resource or service on a network.
- How it is used
- Identifies individual resources through a RESTful API’s uniform interface.
- How deep it goes
- States the unique-identification requirement but does not explain URI syntax or construction.
- Examples
- Places resource identification near an HTTP request–response diagram, without giving a sample URI.
- What you can do after
- Evaluate/understand why a RESTful resource needs a unique identifier.
Build Python Web Apps with Streamlit
A URL is a standardized web address that identifies where a network resource or service can be accessed.
- How it is used
- Connects browsers, deployed applications, dashboards, and external services through web addresses.
- How deep it goes
- Explains local access, deployment, query parameters, and deeplinks, while deferring broader URL and port mechanics.
- Examples
- Uses localhost app addresses, deployed app addresses, API endpoints, weather parameters, and dashboard deeplinks.
- What you can do after
- Apply it via browsers and HTTP requests to open apps, call endpoints, deploy services, and share application state.
Read how Build Python Web Apps with Streamlit explains uri →
The Well-Grounded Python Developer: How the pros use Python and Flask
A URL is an address that identifies a resource or logical location accessible through a network protocol.
- How it is used
- Identifies the resource or logical location that a client requests from a network server.
- How deep it goes
- Explains domains, DNS translation, ports, paths, and server routing through a concrete HTTP request.
- Examples
- Uses a GET request for /path_part/index.html on fictional_website.com:80.
- What you can do after
- Understand how URL components direct HTTP requests to files, handlers, or error responses.
Read how The Well-Grounded Python Developer: How the pros use Python and Flask explains uri →
Data Pipelines with Apache Airflow, Second Edition
A URI is a standardized string that identifies a resource by name, location, or other identifying information.
- How it is used
- Stores Airflow connection details in a standardized string that secrets backends can retrieve and Airflow can parse.
- How deep it goes
- Defines URI and explains its parsing into Airflow connection details, without detailing the URI grammar.
- Examples
- Uses a secure_api connection, a connections/secure_api secret path, and the required conn_uri key.
- What you can do after
- Operate/configure Airflow connections through URI-valued secrets retrieved from a configured secrets backend.
Read how Data Pipelines with Apache Airflow, Second Edition explains uri →
Acing the CCNA Exam: Volume 2 Advanced Networking and Security
A Uniform Resource Locator is a standardized string that identifies a resource and specifies how to access it.
- How it is used
- Identifies web resources and directs browsers toward the protocol, server, and resource needed for access.
- How deep it goes
- Breaks URLs into scheme, authority, and path, then stops short of detailed URL syntax beyond these common elements.
- Examples
- Uses https://www.google.com/maps to illustrate scheme, authority, path, and DNS resolution.
- What you can do after
- Evaluate URL components and understand how a browser uses DNS to locate the named server.
Read how Acing the CCNA Exam: Volume 2 Advanced Networking and Security explains uri →
100 Java Mistakes and How to Avoid Them
A URI is a Uniform Resource Identifier that identifies a resource using a standardized syntax and provides component-based equality semantics.
- How it is used
- Replaces URL when resource identifiers must support predictable comparison and collection use.
- How deep it goes
- Explains the URL comparison hazard and recommends URI, but does not detail URI syntax or equality implementation.
- Examples
- Uses URL lists and contains() to expose indirect equality calls, alongside map and set storage cautions.
- What you can do after
- Apply java.net.URI instead of URL when comparing identifiers or storing them in equality-based collections.
Read how 100 Java Mistakes and How to Avoid Them explains uri →
Build a Website with ChatGPT
A URL is a standardized address that identifies the location of a resource or network endpoint.
- How it is used
- Uses URLs to connect HTML links to nearby files, site directories, and external web pages.
- How deep it goes
- Explains URL terminology, relative paths, root directories, and complete addresses, but does not descend into network protocols.
- Examples
- Shows about.html, /faq/index.html, a Wikipedia address, and a form field that accepts a web address.
- What you can do after
- Build HTML links with relative, directory-based, or complete URLs and configure forms to accept web addresses.
Django in Action
A URL is a standardized locator that identifies a resource or endpoint on a network.
- How it is used
- Connects browser requests to server-side Django views that produce web-application results.
- How deep it goes
- Explains URL routing and request flow, while deferring URL syntax and detailed routing configuration.
- Examples
- Uses browser navigation and the RiffMates site’s registered views, rendered templates, musician data, and venue data.
- What you can do after
- Apply URLs by connecting Django views to browser-accessible web-application pages.
Related concepts
- read_csvuses · read_csv is a function that parses comma-separated or otherwise delimited text into a tabular data structure.
- RESTused by · REST is an architectural style for distributed hypermedia systems that organizes interactions around resources and representations through constraints including a uniform interface, stateless communication, cacheability, and layered components.
- request messageused by · An HTTP request is a message sent by a client to a server that specifies a method and target and may include headers and a body.
- browserused by · A web browser is software that retrieves, interprets, and renders web resources, executes supported web content, and enables interaction with web pages and applications.
- parameterhas part · A model parameter is a numerical value, such as a weight or bias, that is learned or set to determine how a model computes outputs.
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