Add reward decisions from connected web-applications

[ifavo]

Actions that are tracked in established services like Withings, Strava, GoogleFit, etc. can be a good source of information and good behaviour like a healthy lifestyle can be rewarded too.

The need for such data can be turned into a generic feature that:

• allows users to connect to Web-Applications
• run metrics / information through a validation process
• send rewards to users with sustainability proofs

To make it technologically as simple as possible, the following principles will lead the solution:

• use contracts as data storage
• prefer scaleability with slow but stable solutions
• service-neutrality

Initial idea/draft:

sequenceDiagram
participant User
participant X2App
participant Web-App
participant Service-Contract

Note over User, Service-Contract: Connect Apps
User->>X2App: "Connect Web-App"
X2App-->>User: Send redirect for User to authenticate on Web-App
User->>Web-App: Sign In
Web-App-->>X2App: Redirect with auth tokens
X2App->>Web-App: Verify authorization
opt valid authorization
    Web-App-->>X2App: Return user information
    X2App->>Service-Contract: Store wallet address + webAppId + webAppUserId
    X2App-->>User: Confirm connection
end

Note over User, Service-Contract: Disconnect Apps
User->>X2App: Disconnect Web-App
X2App->>Service-Contract: Remove information
X2App-->>User: Confirm disconnection

Note over User, Service-Contract: Reward Distribution
loop Interval or Webhook from Web-App
    X2App->>Service-Contract: Load user to update
    Service-Contract-->>X2App: Return user information
    X2App->>Web-App: Request data
    Web-App-->>X2App: Return metrics/information
    X2App->>X2App: Process information
    opt if eligible for rewards
        X2App->>Service-Contract: Document metrics and reward
        Service-Contract-->>User: Send reward
    end
end

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