Description

This PR does the following:

1. Add UI for Scheduled Trigers
2. Rewrite Event Triggers in TypeScript
3. Refactors some common files to TypeScript
4. Moves ET and ST under a single service called Events

Certain TypeScript patterns that have been followed:

1. any has been used as a type for the following:

   • dispatch: Can't think of a better way until we have a union type that encompasses all redux actions and we have a way to handle thunk. Suggestions are welcome
   • Row of a table (eg: while rendering React table)
   • Variable payloads (eg: request/response of ET/ST invocations)
   • Generally the things that are variable values coming from the server

2. Every component has its prop type next to it. All components will have the following structure.

type Props = {
  dispatch: any,
  currentTrigger: ScheduledTrigger
};

const ModifyScheduledTrigger: React.FC<Props> = (props) => {
  const { dispatch, currentTrigger } = props;

  // some transformations

  return <JSX />
}

Notes for the reviewer:

1. The UI for Event Triggers (JSX) has been taken as is from the existing codebase and not much changes are made; there's definitely a scope for improvement from UI POV, but that's for a separate PR.

2. src/components/Common/utils have been converted to TS. A detailed review on these would be nice because these utils are more or less the core of the app.

3. API has changed, so the full functionality feedback might be redundant for now.

4. Use this docker image ( hasura/graphql-engine:pull3553-0134b257)

Changelog

• CHANGELOG.md is updated with user-facing content relevant to this PR.

Affected components

• Server
• Console
• CLI
• Docs
• Community Content
• Build System
• Tests
• Other (list it)