Digital Legacy Vault
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Digital Legacy Vault Backend

Digital Legacy & Estate Planning Vault Backend Template
Document Storage and Inheritance Management

A production-ready digital legacy vault backend on Back4app with secure document storage and inheritance logic. Includes ER diagram, data dictionary, JSON schema, API playground, and an AI Agent prompt for rapid bootstrap.

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Key Takeaways

This template gives you a digital legacy vault backend with secure document storage and inheritance management so your team can focus on stakeholder engagement and transparency.

  1. Secure document handling — Model documents with permissions and access controls in clear, queryable structures.
  2. Inheritance tracking — Use Back4app's real-time capabilities for managing inheritance provisions and accessing digital assets.
  3. Stakeholder management — Facilitate collaboration by managing access to important legacy documents.
  4. Access control features — Manage user access to documents and assets with robust permissions.
  5. Cross-platform digital legacy backend — Serve mobile and web clients through a single REST and GraphQL API for documents and assets.

What Is the Digital Legacy & Estate Planning Vault Backend Template?

Back4app is a backend-as-a-service (BaaS) for fast product delivery. The Digital Legacy & Estate Planning Vault Backend Template is a pre-built schema for users, documents, assets, and inheritance logic. Connect your preferred frontend (React, Flutter, Next.js, and more) and ship faster.

Best for:

Digital legacy applicationsSecure document storage platformsEstate planning appsStakeholder collaboration toolsMVP launchesTeams selecting BaaS for product management

Overview

A digital legacy vault product needs secure document storage, inheritance management, and stakeholder collaboration.

This template defines User, Document, Asset, and Inheritance Logic with secure sharing features and access controls so teams can implement collaboration quickly.

Core Digital Legacy Vault Features

Every technology card in this hub uses the same digital legacy vault schema with User, Document, Asset, and Inheritance Logic.

User management

User class stores username, email, password, and roles.

Document storage and management

Document class links owner, content, and permissions.

Asset management

Asset class stores type, value, and associated documents.

Inheritance logic

Inheritance logic defines rules for asset transfer.

Why Build Your Digital Legacy & Estate Planning Vault Backend with Back4app?

Back4app provides document, asset, and inheritance management primitives so your team can focus on engagement and transparency instead of infrastructure.

  • •Document and asset management: Document class with permissions and asset class for managing digital inheritance supports collaboration.
  • •Secure sharing and visibility features: Manage document access with permissions and allow users to define inheritance rules easily.
  • •Realtime + API flexibility: Use Live Queries for real-time inheritance updates while keeping REST and GraphQL available for every client.

Build and iterate on digital legacy features quickly with one backend contract across all platforms.

Core Benefits

A digital legacy vault backend that helps you iterate quickly without sacrificing security.

Rapid digital legacy management launch

Start from a complete user, document, and asset schema rather than designing backend from zero.

Secure sharing support

Leverage secure document storage and inheritance logic for enhanced stakeholder engagement.

Clear access control flow

Manage user access to documents and assets with robust permissions.

Scalable permission model

Use ACL/CLP so only authorized users can access documents and define asset inheritance rules.

Document and asset data

Store and aggregate documents and asset data for display and interaction without schema resets.

AI bootstrap workflow

Generate backend scaffolding and integration guidance fast with one structured prompt.

Ready to launch your digital legacy vault app?

Let the Back4app AI Agent scaffold your digital legacy vault backend and generate secure document storage and inheritance logic from one prompt.

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Technical Stack

Everything included in this digital legacy vault backend template.

Frontend
13+ technologies
Backend
Back4app
Database
MongoDB
Auth
Built-in auth + sessions
API
REST and GraphQL
Realtime
Live Queries

ER Diagram

Entity relationship model for the digital legacy vault backend schema.

View diagram source
Mermaid
erDiagram
    User ||--o{ Document : "owner"
    User ||--o{ Estate : "owner"
    User ||--o{ InheritanceLog : "user"
    Estate ||--o{ InheritanceLog : "estate"
    Estate ||--o{ Document : "documents"

    User {
        String objectId PK
        String username
        String email
        String password
        String role
        Date createdAt
        Date updatedAt
    }

    Document {
        String objectId PK
        String title
        String fileUrl
        Pointer owner FK
        Date createdAt
        Date updatedAt
    }

    Estate {
        String objectId PK
        String name
        Pointer owner FK
        Array<Pointer<Document>> documents
        Date createdAt
        Date updatedAt
    }

    InheritanceLog {
        String objectId PK
        Pointer user FK
        Pointer estate FK
        Date inheritanceTime
        Date createdAt
        Date updatedAt
    }

Integration Flow

Typical runtime flow for authentication, document storage, asset management, and inheritance logic.

View diagram source
Mermaid
sequenceDiagram
  participant User
  participant App as Digital Legacy & Estate Planning Vault App
  participant Back4app as Back4app Cloud

  User->>App: Login
  App->>Back4app: POST /login
  Back4app-->>App: Session token

  User->>App: View estate details
  App->>Back4app: GET /classes/Estate
  Back4app-->>App: Estate details

  User->>App: Access document
  App->>Back4app: GET /classes/Document
  Back4app-->>App: Document details

  App->>Back4app: Log inheritance
  Back4app-->>App: InheritanceLog objectId

Data Dictionary

Full field-level reference for every class in the digital legacy vault schema.

FieldTypeDescriptionRequired
objectIdStringAuto-generated unique identifierAuto
usernameStringUser login name
emailStringUser email address
passwordStringHashed password (write-only)
roleStringRole of the user (e.g., admin, client)
createdAtDateAuto-generated creation timestampAuto
updatedAtDateAuto-generated last-update timestampAuto

7 fields in User

Security and Permissions

How ACL and CLP strategy secures users, documents, assets, and inheritance logic.

User-owned profile controls

Only the user can update or delete their profile; others cannot modify user content.

Document and asset integrity

Only the owner can create or delete their documents and assets. Use Cloud Code for validation.

Scoped read access

Restrict document and asset reads to relevant parties (e.g. users see their own documents and assets).

Schema (JSON)

Raw JSON schema definition ready to copy into Back4app or use as implementation reference.

JSON
{
  "classes": [
    {
      "className": "User",
      "fields": {
        "objectId": {
          "type": "String",
          "required": false
        },
        "username": {
          "type": "String",
          "required": true
        },
        "email": {
          "type": "String",
          "required": true
        },
        "password": {
          "type": "String",
          "required": true
        },
        "role": {
          "type": "String",
          "required": true
        },
        "createdAt": {
          "type": "Date",
          "required": false
        },
        "updatedAt": {
          "type": "Date",
          "required": false
        }
      }
    },
    {
      "className": "Document",
      "fields": {
        "objectId": {
          "type": "String",
          "required": false
        },
        "title": {
          "type": "String",
          "required": true
        },
        "fileUrl": {
          "type": "String",
          "required": true
        },
        "owner": {
          "type": "Pointer",
          "required": true,
          "targetClass": "User"
        },
        "createdAt": {
          "type": "Date",
          "required": false
        },
        "updatedAt": {
          "type": "Date",
          "required": false
        }
      }
    },
    {
      "className": "Estate",
      "fields": {
        "objectId": {
          "type": "String",
          "required": false
        },
        "name": {
          "type": "String",
          "required": true
        },
        "owner": {
          "type": "Pointer",
          "required": true,
          "targetClass": "User"
        },
        "documents": {
          "type": "Array",
          "required": true
        },
        "createdAt": {
          "type": "Date",
          "required": false
        },
        "updatedAt": {
          "type": "Date",
          "required": false
        }
      }
    },
    {
      "className": "InheritanceLog",
      "fields": {
        "objectId": {
          "type": "String",
          "required": false
        },
        "user": {
          "type": "Pointer",
          "required": true,
          "targetClass": "User"
        },
        "estate": {
          "type": "Pointer",
          "required": true,
          "targetClass": "Estate"
        },
        "inheritanceTime": {
          "type": "Date",
          "required": true
        },
        "createdAt": {
          "type": "Date",
          "required": false
        },
        "updatedAt": {
          "type": "Date",
          "required": false
        }
      }
    }
  ]
}

Build with AI Agent

Use the Back4app AI Agent to generate a real digital legacy vault app from this template, including frontend, backend, auth, and document, asset, and inheritance flows.

Back4app AI Agent
Ready to build
Create a digital legacy vault app backend on Back4app with this exact schema and behavior.

Schema:
1. User (use Back4app built-in): username, email, password; objectId, createdAt, updatedAt (system).
2. Document: owner (Pointer to User, required), content (String, required), permissions (Array of Strings, required); objectId, createdAt, updatedAt (system).
3. Asset: type (String, required), value (Number, required), associatedDocuments (Array of Pointers to Document); objectId, createdAt, updatedAt (system).
4. Inheritance Logic: requirements (String, required), asset (Pointer to Asset, required); objectId, createdAt, updatedAt (system).

Security:
- Only the user can update/delete their profile. Only the owner can create/delete their documents and assets. Use Cloud Code for validation.

Auth:
- Sign-up, login, logout.

Behavior:
- List users, upload documents, manage assets, and define inheritance logic.

Deliver:
- Back4app app with schema, ACLs, CLPs; frontend for user profiles, documents, assets, and inheritance management.

Press the button below to open the Agent with this template prompt pre-filled.

This is the base prompt without a technology suffix. You can adapt the generated frontend stack afterward.

Deploy in minutes50 free prompts / monthNo credit card required

API Playground

Try REST and GraphQL endpoints against the digital legacy vault schema. Responses use mock data and do not require a Back4app account.

Loading playground…

Uses the same schema as this template.

Choose Your Technology

Expand each card for integration steps, state patterns, data model examples, and offline notes.

Flutter Digital Legacy Vault Backend

React Digital Legacy Vault Backend

React Native Digital Legacy Vault Backend

Next.js Digital Legacy Vault Backend

JavaScript Digital Legacy Vault Backend

Android Digital Legacy Vault Backend

iOS Digital Legacy Vault Backend

Vue Digital Legacy Vault Backend

Angular Digital Legacy Vault Backend

GraphQL Digital Legacy Vault Backend

REST API Digital Legacy Vault Backend

PHP Digital Legacy Vault Backend

.NET Digital Legacy Vault Backend

What You Get with Every Technology

Every stack uses the same digital legacy vault schema and API contracts.

Unified digital legacy vault data structure

A cohesive schema for managing users and assets effectively.

Secure document storage for digital legacy vault

Protect sensitive documents with robust encryption and access controls.

Inheritance logic tailored for digital legacy vault

Automated rules to manage asset distribution according to user preferences.

REST/GraphQL APIs for digital legacy vault

Flexible APIs to facilitate smooth integration with your frontend.

Real-time notifications for digital legacy vault

Instant alerts for important events related to asset management.

Extensible architecture for digital legacy vault

Easily add features and customize functionalities as needed.

Digital Legacy Vault Framework Comparison

Compare setup speed, SDK style, and AI support across all supported technologies.

FrameworkSetup TimeDigital Legacy Vault BenefitSDK TypeAI Support
Flutter
Under 5 minutesSingle codebase for digital legacy vault on mobile and web.Typed SDKFull
React
~3–7 minFast web dashboard for digital legacy vault.Typed SDKFull
React Native
Rapid (5 min) setupCross-platform mobile app for digital legacy vault.Typed SDKFull
Next.js
~5 minServer-rendered web app for digital legacy vault.Typed SDKFull
JavaScript
Under 5 minLightweight web integration for digital legacy vault.Typed SDKFull
Android
Under 5 minutesNative Android app for digital legacy vault.Typed SDKFull
iOS
~3–7 minNative iOS app for digital legacy vault.Typed SDKFull
Vue
Rapid (5 min) setupReactive web UI for digital legacy vault.Typed SDKFull
Angular
~5 minEnterprise web app for digital legacy vault.Typed SDKFull
GraphQL
~2 minFlexible GraphQL API for digital legacy vault.GraphQL APIFull
REST API
Under 2 minREST API integration for digital legacy vault.REST APIFull
PHP
~3–5 minServer-side PHP backend for digital legacy vault.REST APIFull
.NET
Rapid (5 min) setup.NET backend for digital legacy vault.Typed SDKFull

Setup time reflects expected duration from project bootstrap to first document or asset query using this template schema.

Frequently Asked Questions

Common questions about building a digital legacy vault backend with this template.

What is a digital legacy vault backend?
What does the Digital Legacy Vault template include?
Why use Back4app for a digital legacy vault app?
How do I run queries for documents and assets with Flutter?
How do I manage access with Next.js server actions?
Can React Native cache documents and assets offline?
How do I prevent unauthorized document access?
What is the best way to show documents and assets on Android?
How does the document storage and inheritance logic flow work end-to-end?

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