webweg | webreg_scraper | UCSDHistEnrollmentData

An asynchronous API wrapper for the University of California San Diego's WebReg course enrollment system.

Usage

To use this crate, run the following command:

cargo add webweg

Alternatively, you can also put the following line into your Cargo.toml:

webweg = "0.9"

See the corresponding crates.io page for more information.

Wrapper Features

A lot of the things that you can do on WebReg can be done with this wrapper. For example, you're able to:

• Get all possible classes in the quarter.
• Search for classes based on some conditions (i.e., advanced search).
• Get detailed information about a specific class (e.g., number of students enrolled, instructor, etc.)
• Get your current schedule.

You're also able to do things like:

• Change grading options.
• Enroll in, or drop, a class.
• Plan, or un-plan, a class.
• Waitlist, or un-waitlist, a class.
• Create, remove, or rename your schedules.
• Send a confirmation email to yourself.

To see some examples, check out the examples folder.

Multithreading

By default, the wrapper will assume an environment where it is used in a single thread or task. So, if you want to share an instance of the wrapper across multiple threads or tasks, you would have to use a Mutex. The problem with using a Mutex is that if a request is taking a long time (which isn't unusual), the entire wrapper is locked until the request is finished, meaning the other threads using this instance of the wrapper must wait.

By enabling the multi feature, the wrapper can be used across multiple threads or tasks without the need for a Mutex.

To add this crate with the multi feature, you can either run

cargo add webweg --features multi

or put

webweg = { version = "0.9", features = ["multi"] }

in your Cargo.toml.

Authentication

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The way to provide authorization for this wrapper is to provide cookies from an active WebReg session (i.e., your authentication cookies).

To get your authentication cookies, you'll need to do the following:

• Log into WebReg.
• Select a term in the WebReg main menu.
• Open Developer Tools (With Google Chrome, go to the three dots, "More tools," and then "Developer tools.")
• Go to the "Network" tab of the Developer Tools. Then, either:
  • Filter by the text https://act.ucsd.edu/webreg2/svc/wradapter
  • OR, filter by Fetch/XHR.
• Make some sort of request on WebReg (e.g., searching a course).
• Look for a request made by WebReg.
  • Under the request headers, copy the cookie.

Keep in mind that your cookies will expire after either:

• 10 minutes of inactivity (i.e., you do not make some request that uses your cookies for more than 10 minutes), or
• when WebReg goes into maintenance mode; this occurs daily at around 4:15AM pacific time.

Thus, you will need to find some way to keep yourself logged into WebReg 24/7 if you want to perform continuous requests.

Definition Files

This crate comes with two definition files:

• raw_types
• types

Most wrapper methods will make use of return types which can be found in types. Very rarely will you need to use raw_types; the only time you will need to use raw_types is if you're using the search_courses method.

Tests

Many tests here are focused on the parsing aspect of the wrapper, and not making the request itself. It is assumed that making the request should be relatively error-free.

Versioning

This crate uses a versioning scheme that is roughly based on Semantic Versioning. For a version

MAJOR.MINOR.PATCH

• the MAJOR version will be incremented when a very significant feature is added, or many non-backwards compatible changes are added, or a (one or more) significant non-backwards compatible change is added
• the MINOR version will be incremented when a minor feature is added, or few (if any) minor non-backwards compatible changes are added.
• the PATCH version will be incremented when a minor enhancement/feature is added or a bug is fixed.

Disclaimer

I am not responsible for any damages or other issue(s) caused by any use of this wrapper. In other words, by using this wrapper, I am not responsible if you somehow get in trouble or otherwise run into problems.

License

Everything in this repository is licensed under the MIT license.