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Canada COVID-19: What You Need to Know.
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README.md

Canada COVID-19 Bot

Conventional Commits CircleCI

See project wiki at https://github.com/dialoguemd/covid-19/wiki

The purpose of this app is to deliver accurate personalized information from trusted Canadian medical sources regarding COVID-19.

This service personalizes the information about the virus based on user's individual situation. All content is vetted by Canadian medical professionals.

Who is behind this project

The project is created by Dialogue. Dialogue is the leading Canadian telemedicine provider pioneering virtual healthcare dedicated exclusively to the world's leading organizations. We drive real health outcomes through amazing healthcare experiences, an employee engagement playbook, and a relentless focus on patient safety and security.

How to contribute

See CONTRIBUTING.md.

Content structure

The structure of this project is based on the following concepts:

  • The chatbot is composed of steps. Steps are chained. Each step specifies the next step. A step with a question (eg. "dDo you have fever?" is followed by a step with a set of options (eg. Yes or No). The user selects an option and the system records a new fact (eg. Fever:Yes).
  • All facts are used as input to the rules engine. The rules are used to classify the set of facts into classes. For example, if there is a rule that states that if the facts include Fever:Yes, then this set of facts must be classified as "high-risk".
  • Each class represents a set of content files. Each class has it's own subdirectory under src/content directory. A content file is a Markdown file that has a title, body and a source. A file name of the content file must be in the form filename.{language-code}.md.

How add new content

The content served to uses is stored in text files in https://github.com/dialoguemd/covid-19/tree/master/src/content.

The files are placed in sub-sirectories. Each sub-directory corresponds to a "content class". A content class is a collection of content that will be served to all users that belong to a class. Which class a user belongs to is determined by the answers they provide.

All content files follow the Markdown format.

To add a new content file, do the following:

  • Determine which class your content file belongs to.
  • Create a new .md file and add content in it
  • Make sure to follow this format:
## Title

Your content goes here

[Source](https://link-to-the-source-of-the-content)

  • Make sure the last line in your file needs to be blank.
  • Create a pull request and submit it.

How to add new classes of content

Running locally

In the project directory, you can run:

npm install

Installs the dependencies.

npm start

Runs the app in the development mode.

Open http://localhost:3000 to view it in the browser.

The page will reload if you make edits. You will also see any lint errors in the console.

npm run build

Builds the app for production to the build folder.

It correctly bundles React in production mode and optimizes the build for the best performance.

The build is minified and the filenames include the hashes.

Your app is ready to be deployed!

See the section about deployment for more information.

Rules

Defining rules is handled by json-rules-engine.

Definitions

  • Facts are the values collected through the chat
  • Rules are the evaluation of those facts
  • Results are generated from the rules being applied to those facts

Adding rules

Globally

Add them to rules/global.json

On Step

They can also be defined on a step directly under metadata. Step-defined rules will only be applied if that step was rendered.

e.g.

steps = [
  {
    id: '1',
    message: 'Pick a number',
    trigger: '2',
    metadata: {
      rule: {
        "conditions":{...},
        "event":{...}
      }
    }
  },
  ...
]
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