Rest API - Slack Chat - Invite Team Member to Join a Channel

[Code4SocialGood]

• Background
  C4SG web application will interface with Slack to provide chat room functionality.

• Requirement
  Create Rest API end point: inviteToChannel
  Description: This operation invites a team member to join a Slack channel
  Input Parameter: user's email address, slack channel ID
  Constant: Slack team room: https://code4socialgood.slack.com/

• Reference
  Slack API: https://api.slack.com/community
  Slack tasks: Rest API - Slack Chat - Send Join Team Invitation Email #3, Rest API - Slack Chat - Whether User Joined Slack Room #24, Rest API - Slack Chat - Create Private Channel #25, Rest API - Slack Chat - Invite Team Member to Join a Channel  #26

• Document
  Vision - Online Chat.docx
  Use Case Specification - Online Chat.docx
  Chat Technical Design and Slack Integration.docx