system architecture overview

flowchart LR
  page[Your page or SPA]
  lib[jsjiit bundle]
  crypto[Web Crypto subtle]
  fetchA[fetch]
  portal[JIIT StudentPortalAPI]
  page --> lib
  lib --> crypto
  lib --> fetchA
  fetchA --> portal

flowchart TB
  subgraph public
    I[index.js]
  end
  subgraph http
    W[wrapper.js]
  end
  subgraph domain
    A[attendance.js]
    R[registration.js]
    E[exam.js]
    X[exceptions.js]
  end
  subgraph cryptoM
    C[encryption.js]
    U[utils.js]
  end
  I --> W
  I --> A
  I --> R
  I --> E
  I --> X
  I --> C
  W --> A
  W --> R
  W --> E
  W --> X
  W --> C
  C --> U

classDiagram
  class WebPortal {
    session
    __hit()
    student_login()
  }
  class WebPortalSession {
    token
    get_headers()
  }
  class AttendanceMeta
  class Registrations
  class ExamEvent
  WebPortal --> WebPortalSession
  WebPortal --> AttendanceMeta
  WebPortal --> Registrations
  WebPortal --> ExamEvent

flowchart TD
  hit[__hit]
  hit --> open[LocalName only]
  hit --> authed[Bearer plus LocalName]
  open --> login[student_login]
  authed --> rest[data methods]

flowchart TB
  m[method] --> p1[serialize_payload then options.body]
  m --> p2[serialize_payload then options.json]
  m --> p3[plain object options.json]
  m --> p4[download_marks raw GET]

sequenceDiagram
  participant WP
  participant JWT as JWT payload
  participant API
  WP->>JWT: atob payload exp
  WP->>WP: session.expiry Date
  WP->>API: later requests
  API-->>WP: 401
  WP->>WP: throw SessionExpired

flowchart LR
  subtle[crypto.subtle] --> https[HTTPS or localhost]
  download[download_marks] --> dom[document.createElement a]
  fetchC[fetch] --> cors[portal CORS]

flowchart TB
  src[nine files under src/]
  src --> bundle[one ESM file]
  bundle --> min[minified]
  bundle --> raw[pretty]