subject_catalog_number_prerequisites.md

Course Prerequisites

GET /courses/{subject}/{catalog_number}/prerequisites.{format}

Description

This method returns parsed and raw representation of prerequsites for a given course

Summary

Name	Value	Name	Value
Request Protocol	GET	Requires API Key	Yes
Method ID	1181	Enabled	Yes
Service Name	courses	Service ID	239
Information Steward	Registrar	Data Type	Scraped
Update Frequency	Every request (live)	Cache Time	0 seconds

Notes

• Please see the following blog post on how to interpret the data.
  http://hxhl95.github.io/course-prerequisites-string-parser/
• Any value can be null

Sources

• http://ugradcalendar.uwaterloo.ca/
• http://gradcalendar.uwaterloo.ca/

Parameters

GET /courses/{subject}/{catalog_number}/prerequisites.{format}

Parameter	Type	Required	Description
subject	input	yes	Valid uWaterloo subject name
catalog_number	input	yes	Valid uWaterloo course number
format	input	yes	The format of the output
key	filter	yes	Valid API key
callback	filter	no	JSONP callback format

Output Formats

• json
• xml

Examples

GET /courses/{subject}/{catalog_number}/prerequisites.{format}

• https://api.uwaterloo.ca/v2/courses/PHYS/375/prerequisites.json
• https://api.uwaterloo.ca/v2/courses/CS/486/prerequisites.xml
• https://api.uwaterloo.ca/v2/courses/PHYS/375/prerequisites.json?callback=myResponse

Response

Field Name	Type	Value Description
subject	string	Requested subject acronym
catalog_number	string	Registrar assigned class number
title	string	Class name and title
prerequisites	number	Raw listing of course prerequisites
prerequisites_parsed	list	Parsed prerequisites

Any value can be null

Output

JSON

{
  "meta":{
    "requests":117,
    "timestamp":1381955389,
    "status":200,
    "message":"Request successful",
    "method_id":1181,
    "version":2.07,
    "method":{
      
    }
  },
  "data":{
    "subject":"PHYS",
    "catalog_number":"375",
    "title":"Stars",
    "prerequisites":"Prereq: PHYS 112 or 122 and two of PHYS 234, 241, 242, 256, 258\/358, 263, 275",
    "prerequisites_parsed":[
      [
        1,
        "PHYS112",
        "PHYS122"
      ],
      [
        2,
        "PHYS234",
        "PHYS241",
        "PHYS242",
        "PHYS256",
        [
          1,
          "PHYS258",
          "PHYS358"
        ],
        "PHYS263",
        "PHYS275"
      ]
    ]
  }
}