# Doormile Customer App (`doormile_cx`) API — Quick Reference

> **Base URL:** `https://api.doormile.com/api/v1`  
> **Namespace:** `/customer/*` | **Auth Role:** `9` (Customer) | **Data Envelope:** `{ "success": true, "data": { ... } }`

---

## 1. Global Conventions

| Aspect | Specification | Details / Rules |
|---|---|---|
| **Naming** | `camelCase` | All request & response JSON fields use camelCase. |
| **Timestamps** | Epoch milliseconds (UTC, `int64`) | Parse directly with `DateTime.fromMillisecondsSinceEpoch(ts)`. |
| **Identifiers** | Sequence-backed Feistel permutation | **Booking Reference:** `DM-482913`<br>**Tracking Number:** `DMX10482913` |
| **Headers** | `Authorization: Bearer <accessToken>`<br>`X-Client: doormile-cx/<version>+<build>`<br>`X-Platform: android | ios`<br>`Idempotency-Key: <uuid>` | • Required on all routes except pre-auth & catalogue.<br>• Client telemetry logged on every request.<br>• Idempotency supported on booking creation & OTP verification. |
| **Token Lifetime** | Access: `1 hour` \| Refresh: `60 days` | Refresh tokens rotate on every use. Replaying a revoked token revokes the entire chain. |

---

## 2. Complete Endpoint Reference (28 Routes)

### 🔐 Authentication (Pre-Auth & Session)
| Method | Endpoint | Auth | Description |
|---|---|:---:|---|
| `POST` | `/customer/auth/otp/request` | ❌ | Request OTP via SMS/Email (returns uniform success regardless of account existence). |
| `POST` | `/customer/auth/otp/verify` | ❌ | Verify OTP, returns JWT tokens & customer profile. |
| `POST` | `/customer/auth/signup` | ❌ | Register new customer or treat existing phone as sign-in. |
| `POST` | `/customer/auth/refresh` | ❌ | Rotate refresh token to issue a new access token. |
| `POST` | `/customer/auth/logout` | ✅ | Revoke session (omit `refreshToken` to sign out everywhere). |
| `GET` | `/customer/auth/me` | ✅ | Fetch currently authenticated customer identity. |

### 📦 Serviceability & Catalogue
| Method | Endpoint | Auth | Description |
|---|---|:---:|---|
| `GET` | `/customer/serviceability/states` | ❌ | List serviceable states (`ETag` / 304 supported). |
| `GET` | `/customer/serviceability/states/:code/districts` | ❌ | List serviceable districts in state (`ETag` / 304). |
| `GET` | `/customer/pickup-slots` | ❌ | List today's & tomorrow's time slots with zone capacity (`ETag` / 304). |
| `GET` | `/customer/config/booking-limits` | ❌ | Get booking limits (`maxDestinations`, `maxPackages`, `maxCodAmount`). |

### 📍 Places & Geocoding
| Method | Endpoint | Auth | Description |
|---|---|:---:|---|
| `GET` | `/customer/places/search?q=:query&lat=:lat&lng=:lng` | ✅ | Place search / autocomplete (empty query returns recent/saved). |
| `GET` | `/customer/places/reverse-geocode?lat=:lat&lng=:lng` | ✅ | Reverse geocode coordinates to structured address. |

### 💰 Fare Estimation
| Method | Endpoint | Auth | Description |
|---|---|:---:|---|
| `POST` | `/customer/fare/estimate` | ✅ | Compute estimated fare band (`minRupees`–`maxRupees`) & route distance. |

### 🚚 Bookings & Tracking
| Method | Endpoint | Auth | Description |
|---|---|:---:|---|
| `POST` | `/customer/bookings` | ✅ | Create multi-destination pickup booking (`Idempotency-Key` supported). |
| `GET` | `/customer/bookings?limit=20&cursor=:cursor&status=active` | ✅ | Keyset paginated customer bookings list. |
| `GET` | `/customer/bookings/:reference` | ✅ | Get full booking detail & live tracking snapshot (`ETag` supported). |
| `POST` | `/customer/bookings/:reference/cancel` | ✅ | Cancel booking (allowed strictly before rider status `arrived`). |
| `PATCH` | `/customer/bookings/:reference/destinations/:index` | ✅ | Update recipient details on a pending destination stop. |
| `GET` | `/customer/orders/:trackingId` | ✅ | Look up single order/parcel status by tracking number. |

### 👤 Profile & Saved Locations
| Method | Endpoint | Auth | Description |
|---|---|:---:|---|
| `GET` | `/customer/profile` | ✅ | Get customer profile details. |
| `PUT` | `/customer/profile` | ✅ | Update customer name/email. |
| `GET` | `/customer/locations` | ✅ | List up to 10 saved delivery/pickup addresses. |
| `POST` | `/customer/locations` | ✅ | Save a new location. |
| `PUT` | `/customer/locations/:id` | ✅ | Update an existing saved location. |
| `DELETE` | `/customer/locations/:id` | ✅ | Delete a saved location. |

### 🔔 Devices & Push Notifications
| Method | Endpoint | Auth | Description |
|---|---|:---:|---|
| `POST` | `/customer/devices` | ✅ | Register FCM device token for milestone push updates. |
| `DELETE` | `/customer/devices/:token` | ✅ | Unregister device token on logout. |

### 🛠️ Ops QA Testing (Non-Production Only)
| Method | Endpoint | Auth | Description |
|---|---|:---:|---|
| `POST` | `/customer/ops/bookings/:reference/stage` | ✅ | Double-gated test helper to walk a booking through stages. |

---

## 3. Core Request & Response Payloads

### 1) OTP Verification (`POST /customer/auth/otp/verify`)
```json
// Request
{
  "identifier": "+919876543210",
  "otp": "1234"
}

// Response (200 OK)
{
  "success": true,
  "data": {
    "accessToken": "eyJhbGciOi...",
    "refreshToken": "d8f1e2a3...",
    "expiresIn": 3600,
    "customer": {
      "id": 1042,
      "name": "Alex Kumar",
      "phone": "+919876543210",
      "email": "alex@example.com"
    }
  }
}
```

### 2) Fare Estimate (`POST /customer/fare/estimate`)
```json
// Request
{
  "pickup": {
    "latitude": 13.0827,
    "longitude": 80.2707,
    "stateCode": "TN",
    "districtCode": "CHN"
  },
  "destinations": [
    {
      "stateCode": "TN",
      "districtCode": "CHN",
      "packages": [{ "weightKg": 2.5 }]
    },
    {
      "stateCode": "KA",
      "districtCode": "BLR",
      "packages": [{ "weightKg": 1.0 }]
    }
  ]
}

// Response (200 OK)
{
  "success": true,
  "data": {
    "minRupees": 240,
    "maxRupees": 310,
    "routeKm": 348.5,
    "breakdown": {
      "baseFare": 180,
      "additionalStopsUplift": 60,
      "estimatedTax": 0
    }
  }
}
```

### 3) Booking Creation (`POST /customer/bookings`)
```json
// Request
{
  "slotId": "slot_20260908_t2",
  "pickup": {
    "title": "Home",
    "sub": "Flat 4B, Green Towers, Anna Nagar",
    "latitude": 13.0827,
    "longitude": 80.2707,
    "contactName": "Alex Kumar",
    "contactPhone": "+919876543210"
  },
  "destinations": [
    {
      "recipientName": "Priya S",
      "recipientPhone": "+919840123456",
      "building": "12/A",
      "street": "MG Road",
      "landmark": "Near Metro",
      "districtCode": "CHN",
      "stateCode": "TN",
      "latitude": 13.0850,
      "longitude": 80.2100,
      "packageCount": 1,
      "codAmount": 450
    }
  ],
  "remarks": "Handle with care"
}

// Response (201 Created)
{
  "success": true,
  "data": {
    "reference": "DM-482913",
    "stage": "booked",
    "status": "active",
    "cancellable": true,
    "createdAt": 1788775499000,
    "slotId": "slot_20260908_t2",
    "pickup": {
      "title": "Home",
      "sub": "Flat 4B, Green Towers, Anna Nagar",
      "latitude": 13.0827,
      "longitude": 80.2707
    },
    "destinations": [
      {
        "index": 0,
        "stateName": "Tamil Nadu",
        "districtName": "Chennai",
        "packageCount": 1,
        "codAmount": 450,
        "trackingId": null,
        "stage": null
      }
    ]
  }
}
```

---

## 4. Lifecycle & Stage Machine

### Stage Progression Sequence
```
[ booked ] ──► [ assigned ] ──► [ arrived ] ──► [ picked_up ] ──► [ order_created ]
                                     │ (cancel window closes)
                                     ▼
                  [ delivered ] ◄── [ out_for_delivery ] ◄── [ in_transit ]
```

### Stage Vocabulary
| Stage Key | Meaning / Trigger | Cancellable? | Scope |
|---|---|:---:|---|
| `booked` | Order submitted by customer | ✅ Yes | Booking |
| `assigned` | Rider assigned to visit | ✅ Yes | Booking |
| `on_the_way` | Rider accepted assignment | ✅ Yes | Booking |
| `arrived` | Rider arrived at pickup point (**cancellation cutoff**) | ❌ No | Booking |
| `picked_up` | Parcels collected and weighed | ❌ No | Booking |
| `order_created` | Tracking IDs generated per destination | ❌ No | Per Destination |
| `in_transit` | Parcels sorted / inwarded at hub | ❌ No | Per Destination |
| `out_for_delivery` | Dispatched with delivery agent | ❌ No | Per Destination |
| `delivered` | Successfully delivered to recipient | ❌ No | Per Destination |
| `cancelled` | Cancelled by customer or ops before arrival | — | Terminal |

> [!IMPORTANT]
> **Rollup Rule:** The overall booking stage reflects the **slowest order**. If Destination 1 is `delivered` but Destination 2 is `in_transit`, the booking rollup remains `in_transit`.

---

## 5. Cross-App Impact & Compatibility

| Client / Component | Observable Change | Impact / Handling |
|---|---|---|
| **Miler App (Flutter)** | Multi-stop collection | Post-collection returns multiple stops sharing one `bookingid`. Keys must resolve by `consignmentid`. |
| **Admin Console** | Booking numbers & Search | Display format is now `DM-482913`. Searches match exact substring. |
| **Hub Console** | Tracking IDs & Inbound | Tracking numbers are now `DMX10482913`. |
| **Safety Mitigation** | `maxDestinations` Gate | Configured in DB (`customerbookinglimits.maxdestinations = 1`) to keep fanout single-destination until mobile updates deploy. |

---

## 6. Standard Error Codes & Envelopes

All errors return JSON in standard format:
```json
{
  "success": false,
  "error": {
    "code": "SLOT_UNAVAILABLE",
    "message": "That pickup time has passed — pick a new slot"
  }
}
```

| HTTP Status | Error Code (`error.code`) | Meaning / Recommended Client Action |
|---|---|---|
| `400` | `INVALID_INPUT` / `SLOT_EXPIRED` | Validation error or expired slot date. Prompt user to re-select. |
| `401` | `UNAUTHORIZED` | Token missing or expired. Redirect to OTP login / refresh session. |
| `403` | `FORBIDDEN` | Caller lacks role 9 customer access. |
| `404` | `NOT_FOUND` | Booking reference or tracking ID does not exist. |
| `409` | `SLOT_CAPACITY_FULL` | Slot filled up during checkout race. Prompt user to choose another time. |
| `409` | `BOOKING_NOT_CANCELLABLE` | Customer attempted cancel after rider `arrived`. Show un-cancellable alert. |
| `422` | `UNSERVICEABLE_PINCODE` | Location is outside active operating zones. |
| `429` | `RATE_LIMITED` | OTP requests exceeded limit (max 5/hour). Show countdown timer. |
| `500` | `INTERNAL_ERROR` | Generic server error (`X-Request-Id` logged). |

---

## 7. Environment Variables & Deploy Flags

```bash
GEOCODER_URL=https://nominatim.openstreetmap.org  # Geocoding proxy
GEOCODER_EMAIL=ops@doormile.com                   # Nominatim contact policy
MILER_CALL_PROXY=                                 # Set to proxy number in production (protects rider PII)
CX_STAGING_OTP=1234                               # Fixed OTP for staging QA (disabled if ENV=production)
CX_ID_SCRAMBLE_KEY=                               # Optional custom key for Feistel sequence permutation
CX_ALLOW_STAGE_OVERRIDE=false                     # Double-gated QA stage override tool
```