Art Commission Marketplace Backend

Art Commission Marketplace Backend Template
ArtistProfile, CommissionRequest, ProgressPhoto, and PaymentMilestone

Q: What should art commission marketplace operators instrument first when expanding to a second location?

An art commission marketplace backend is a BaaS schema and API for matching buyers with artists, tracking style tags, logging progress photos, and managing milestone payments.

Q: How should art commission marketplace teams track asset condition across high-turnover rentals?

It includes User, ArtistProfile, CommissionRequest, ProgressPhoto, and PaymentMilestone, plus an ER diagram, API sandbox, and an AI Agent prompt.

Q: Is it feasible to connect art commission marketplace payments, deposits, and refunds through APIs?

Back4app provides managed database, auth, real-time queries, and flexible schema so you can ship commission requests, progress visibility, and staged payments without running your own backend.

Q: How do I show commissions by style tags with Flutter?

Query ArtistProfile and CommissionRequest together in Flutter, then group commission cards by styleTags so buyers can browse portrait, fantasy, or other styles quickly.

Q: How do I manage progress photos in Next.js server actions?

Use a server action to create a ProgressPhoto object for the related CommissionRequest, attach the photoUrl, caption, and stageTag, then invalidate the commission detail page.

Q: Can React Native cache progress photos offline?

Yes. Enable Local Datastore and pin CommissionRequest and ProgressPhoto results so buyers can review the latest sketch logs even when the connection drops.

Q: How do I prevent unauthorized milestone releases?

In Cloud Code beforeSave for PaymentMilestone, verify the commission relation, the actor's role, and the expected status transition before allowing a release.

Q: What is the best way to display artists on Android?

Query ArtistProfile to show bio, portfolioUrl, isAcceptingCommissions, baseRate, and styleTags in the marketplace grid.

A production-ready art commission marketplace backend on Back4app with ArtistProfile, CommissionRequest, ProgressPhoto, and PaymentMilestone. Includes ER diagram, data dictionary, JSON schema, API sandbox, and an AI Agent prompt for rapid bootstrap.

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Marketplace Takeaways

This template gives you an art commission marketplace backend with ArtistProfile, CommissionRequest, ProgressPhoto, and PaymentMilestone so your team can focus on matching buyers with artists and keeping commission work traceable.

Style-tagged artist discovery — Use ArtistProfile.styleTags and CommissionRequest.styleTags to sort requests by medium, subject, and visual direction.
Progress photo logging — Track ProgressPhoto entries per CommissionRequest so buyers can review sketches, linework, color, and final delivery stages.
Milestone payment control — Model PaymentMilestone rows to tie deposits, sketch approval, and final release amounts to each commission.

Understanding the Art Commission Marketplace Backend

Availability is a moving target in art commission marketplace: maintenance windows, returns running late, and bundles that tie multiple assets together. Customers feel it in the ETA you promise. Back4app powers the core entities for art commission marketplace products where conflicts, deposits, and logistics need to stay synchronized with customer-facing flows. The schema covers User, ArtistProfile, CommissionRequest, ProgressPhoto, and PaymentMilestone with auth, request tracking, and payment checkpoints built in. Connect your preferred frontend and ship faster.

Best for:

Art commission marketplacesCustom illustration request platformsArtist booking and discovery appsProgress-tracking creative servicesMVP launchesTeams selecting BaaS for marketplace products

Art Commission Marketplace backend overview

If art commission marketplace stakeholders cannot answer simple questions in seconds, they will answer them in meetings — slowly and expensively.

Whether you ship web or mobile, artist profiles with portfolio details, style-based discovery, stage-by-stage progress photo logs remain the backbone — this page is the quickest way to align stakeholders.

Artist Commission Market Features

Every technology card in this hub uses the same marketplace schema with User, ArtistProfile, CommissionRequest, ProgressPhoto, and PaymentMilestone.

Artist profiles with portfolio details

ArtistProfile stores artist, bio, styleTags, portfolioUrl, isAcceptingCommissions, and baseRate.

Style-based discovery

CommissionRequest styleTags and ArtistProfile styleTags label medium, vibe, and subject.

Stage-by-stage progress photo logs

ProgressPhoto tracks commission, uploadedBy, photoUrl, caption, stageTag, and isVisibleToBuyer.

Milestone payment tracking

PaymentMilestone stores commission, title, amount, status, dueAt, and paidAt.

Why Build Your Art Commission Marketplace Backend with Back4app?

Back4app gives you marketplace primitives for artist profiles, commission requests, visual progress logs, and milestone payments so your team can spend time on matching and moderation rather than data plumbing.

•Commission and profile records: The CommissionRequest class connects buyer and artist pointers, while ArtistProfile keeps bio, styleTags, portfolioUrl, isAcceptingCommissions, and baseRate easy to query.
•Style tags and progress proof: Use ArtistProfile.styleTags and CommissionRequest.styleTags for discovery, then add ProgressPhoto rows with stageTag values such as sketch, linework, color, and final.
•Payment milestone checkpoints: PaymentMilestone rows let you track deposit, sketch approval, and final release amounts against each CommissionRequest through commission, amount, status, dueAt, and paidAt.

Build a marketplace backend that knows the difference between a sketch update, a revision, and a final payment.

Marketplace Benefits

A backend that keeps request intake, visual updates, and milestone payments aligned.

Faster commission intake

Start from User, ArtistProfile, and CommissionRequest classes instead of inventing request forms and relation fields from zero.

Progress that buyers can inspect

ProgressPhoto records make sketch reviews and revision checkpoints visible to both buyer and artist on the related CommissionRequest.

Payment milestones with context

Use PaymentMilestone to tie deposit, approval, and final release amounts to the matching CommissionRequest.

StyleTag-driven filtering

Query ArtistProfile.styleTags and CommissionRequest.styleTags values like portrait, fantasy, watercolor, or pixel art.

Clear marketplace ownership

buyer and artist pointers in CommissionRequest keep each commission anchored to the right people and the right workflow.

AI bootstrap workflow

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

Ready to launch your art commission marketplace?

Let the Back4app AI Agent scaffold your marketplace backend and generate User, ArtistProfile, CommissionRequest, ProgressPhoto, and PaymentMilestone from one prompt.

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Technical Stack

Everything included in this art commission marketplace backend template.

Frontend

13+ technologies

Backend

Back4app

Database

MongoDB

Auth

Built-in auth + sessions

API

REST and GraphQL

Realtime

Live Queries

Commission ER Model

Entity relationship model for the art commission marketplace schema.

Commission ER Model

View diagram source

Mermaid

erDiagram
    User ||--o{ ArtistProfile : "artist"
    User ||--o{ CommissionRequest : "buyer"
    User ||--o{ CommissionRequest : "artist"
    CommissionRequest ||--o{ ProgressPhoto : "commission"
    User ||--o{ ProgressPhoto : "uploadedBy"
    CommissionRequest ||--o{ PaymentMilestone : "commission"

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

    ArtistProfile {
        String objectId PK
        String artistId FK
        String bio
        Array styleTags
        String portfolioUrl
        Boolean isAcceptingCommissions
        Number baseRate
        Date createdAt
        Date updatedAt
    }

    CommissionRequest {
        String objectId PK
        String buyerId FK
        String artistId FK
        String title
        String description
        Array styleTags
        Array referenceImageUrls
        String status
        Number agreedBudget
        Number currentMilestoneIndex
        Date createdAt
        Date updatedAt
    }

    ProgressPhoto {
        String objectId PK
        String commissionId FK
        String uploadedById FK
        String photoUrl
        String caption
        String stageTag
        Boolean isVisibleToBuyer
        Date createdAt
        Date updatedAt
    }

    PaymentMilestone {
        String objectId PK
        String commissionId FK
        String title
        Number amount
        String status
        Date dueAt
        Date paidAt
        Date createdAt
        Date updatedAt
    }

Commission Workflow Sequence

Typical runtime flow for auth, artist discovery, commission requests, progress photo logging, and milestone payments.

Commission ER Model

View diagram source

Mermaid

sequenceDiagram
  participant Buyer
  participant App as Art Commission Marketplace App
  participant Back4app as Back4app Cloud

  Buyer->>App: Sign in to review commissions
  App->>Back4app: POST /login
  Back4app-->>App: Session token

  Buyer->>App: Browse artists by styleTags
  App->>Back4app: GET /classes/ArtistProfile?where={isAcceptingCommissions:true}
  Back4app-->>App: ArtistProfile list

  Buyer->>App: Submit a CommissionRequest
  App->>Back4app: POST /classes/CommissionRequest
  Back4app-->>App: CommissionRequest objectId

  Artist->>App: Upload ProgressPhoto and update PaymentMilestone
  App->>Back4app: POST /classes/ProgressPhoto
  App->>Back4app: PUT /classes/PaymentMilestone/{objectId}
  Back4app-->>App: Saved progress and milestone state

Field Dictionary

Full field-level reference for every class in the art commission marketplace schema.

Field	Type	Description	Required
objectId	String	Auto-generated unique identifier	Auto
username	String	User login name
email	String	User email address
password	String	Hashed password (write-only)
role	String	Marketplace role such as buyer, artist, or operator
displayName	String	Public display name used on commission listings
createdAt	Date	Auto-generated creation timestamp	Auto
updatedAt	Date	Auto-generated last-update timestamp	Auto

8 fields in User

Marketplace Access Control

How ACL and CLP strategy secures artists, buyers, commissions, photos, and payments.

Profile ownership controls

Only the owner of a User account should edit it; operators can review without changing identity data.

Commission access boundaries

A buyer sees their own CommissionRequest records, while the assigned artist sees the jobs they accepted and the related ProgressPhoto entries.

Payment milestone integrity

Only approved roles should create or release PaymentMilestone updates, and Cloud Code can validate amount and status transitions.

JSON Schema

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

JSON

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{
  "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
        },
        "displayName": {
          "type": "String",
          "required": true
        },
        "createdAt": {
          "type": "Date",
          "required": false
        },
        "updatedAt": {
          "type": "Date",
          "required": false
        }
      }
    },
    {
      "className": "ArtistProfile",
      "fields": {
        "objectId": {
          "type": "String",
          "required": false
        },
        "artist": {
          "type": "Pointer",
          "required": true,
          "targetClass": "User"
        },
        "bio": {
          "type": "String",
          "required": true
        },
        "styleTags": {
          "type": "Array",
          "required": true
        },
        "portfolioUrl": {
          "type": "String",
          "required": false
        },
        "isAcceptingCommissions": {
          "type": "Boolean",
          "required": true
        },
        "baseRate": {
          "type": "Number",
          "required": true
        },
        "createdAt": {
          "type": "Date",
          "required": false
        },
        "updatedAt": {
          "type": "Date",
          "required": false
        }
      }
    },
    {
      "className": "CommissionRequest",
      "fields": {
        "objectId": {
          "type": "String",
          "required": false
        },
        "buyer": {
          "type": "Pointer",
          "required": true,
          "targetClass": "User"
        },
        "artist": {
          "type": "Pointer",
          "required": true,
          "targetClass": "User"
        },
        "title": {
          "type": "String",
          "required": true
        },
        "description": {
          "type": "String",
          "required": true
        },
        "styleTags": {
          "type": "Array",
          "required": true
        },
        "referenceImageUrls": {
          "type": "Array",
          "required": false
        },
        "status": {
          "type": "String",
          "required": true
        },
        "agreedBudget": {
          "type": "Number",
          "required": true
        },
        "currentMilestoneIndex": {
          "type": "Number",
          "required": true
        },
        "createdAt": {
          "type": "Date",
          "required": false
        },
        "updatedAt": {
          "type": "Date",
          "required": false
        }
      }
    },
    {
      "className": "ProgressPhoto",
      "fields": {
        "objectId": {
          "type": "String",
          "required": false
        },
        "commission": {
          "type": "Pointer",
          "required": true,
          "targetClass": "CommissionRequest"
        },
        "uploadedBy": {
          "type": "Pointer",
          "required": true,
          "targetClass": "User"
        },
        "photoUrl": {
          "type": "String",
          "required": true
        },
        "caption": {
          "type": "String",
          "required": false
        },
        "stageTag": {
          "type": "String",
          "required": true
        },
        "isVisibleToBuyer": {
          "type": "Boolean",
          "required": true
        },
        "createdAt": {
          "type": "Date",
          "required": false
        },
        "updatedAt": {
          "type": "Date",
          "required": false
        }
      }
    },
    {
      "className": "PaymentMilestone",
      "fields": {
        "objectId": {
          "type": "String",
          "required": false
        },
        "commission": {
          "type": "Pointer",
          "required": true,
          "targetClass": "CommissionRequest"
        },
        "title": {
          "type": "String",
          "required": true
        },
        "amount": {
          "type": "Number",
          "required": true
        },
        "status": {
          "type": "String",
          "required": true
        },
        "dueAt": {
          "type": "Date",
          "required": false
        },
        "paidAt": {
          "type": "Date",
          "required": false
        },
        "createdAt": {
          "type": "Date",
          "required": false
        },
        "updatedAt": {
          "type": "Date",
          "required": false
        }
      }
    }
  ]
}

Build with AI Agent

Use the Back4app AI Agent to generate a real art commission marketplace app from this template, including frontend, backend, auth, commission, progress photo, and milestone payment flows.

Back4app AI Agent

Ready to build

Create an art commission marketplace app backend on Back4app with this exact schema and behavior.

Schema:
1. User (use Back4app built-in): username, email, password, role, displayName; objectId, createdAt, updatedAt (system).
2. ArtistProfile: artist (Pointer to User, required), bio, styleTags, portfolioUrl, isAcceptingCommissions, baseRate; objectId, createdAt, updatedAt (system).
3. CommissionRequest: buyer (Pointer to User, required), artist (Pointer to User, required), title, description, styleTags, referenceImageUrls, status, agreedBudget, currentMilestoneIndex; objectId, createdAt, updatedAt (system).
4. ProgressPhoto: commission (Pointer to CommissionRequest, required), uploadedBy (Pointer to User, required), photoUrl, caption, stageTag, isVisibleToBuyer; objectId, createdAt, updatedAt (system).
5. PaymentMilestone: commission (Pointer to CommissionRequest, required), title, amount, status, dueAt, paidAt; objectId, createdAt, updatedAt (system).

Security:
- Only the artist or buyer linked to a CommissionRequest can read it.
- Only the assigned artist can add ProgressPhoto entries for an active commission.
- Only the buyer, artist, or operator can view milestone status; only operators can refund or override a milestone state.
- Keep referenceImageUrls private to the commission participants.

Auth:
- Sign-up, login, logout with role-aware onboarding.

Behavior:
- Browse artists by styleTags and isAcceptingCommissions.
- Create commission briefs, upload progress photos, and move PaymentMilestone records through due, held, released, or refunded states.
- Show commission progress from sketch to final delivery.

Deliver:
- Back4app app with schema, CLPs, ACLs, dashboard-ready collections, and a frontend that supports buyer discovery, artist workflow, and operator review tools.

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.

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API Sandbox

Try REST and GraphQL endpoints against the art commission marketplace schema. Responses use mock data and do not require a Back4app account.

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Uses the same schema as this template.

Pick Your Tech Stack

Expand each card to see how to integrate ArtistProfile, CommissionRequest, and ProgressPhoto with your chosen stack.

What You Get with Every Technology

Every stack uses the same art commission marketplace backend schema and API contracts.

Unified marketplace data structure

Manage users, artist profiles, commission requests, progress photos, and payment milestones with one schema.

Style-driven discovery for art requests

Filter ArtistProfile and CommissionRequest records by styleTags values like portrait, fantasy, watercolor, or pixel art.

Progress logging for commission work

Track sketch, linework, coloring, and final render photos on each CommissionRequest.

Milestone payment tracking for orders

Tie deposit, approval, and final payment steps to PaymentMilestone records.

Art Marketplace Stack Comparison

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

Framework	Setup Time	Marketplace Benefit	SDK Type	AI Support
Flutter	About 5 min	Single codebase for buyer and artist apps.	Typed SDK	Full
React	Under 5 minutes	Fast marketplace dashboard for the web.	Typed SDK	Full
React Native	~3–7 min	Cross-platform mobile app for commission tracking.	Typed SDK	Full
Next.js	Rapid (5 min) setup	Server-rendered marketplace pages for discovery.	Typed SDK	Full
JavaScript	~3–5 min	Lightweight web integration for commissions.	Typed SDK	Full
Android	About 5 min	Native Android app for buyers and artists.	Typed SDK	Full
iOS	Under 5 minutes	Native iOS app for mobile marketplace access.	Typed SDK	Full
Vue	~3–7 min	Reactive web UI for style-based browsing.	Typed SDK	Full
Angular	Rapid (5 min) setup	Enterprise admin app for moderation.	Typed SDK	Full
GraphQL	Under 2 min	Flexible GraphQL API for nested marketplace queries.	GraphQL API	Full
REST API	Quick (2 min) setup	REST API integration for commission services.	REST API	Full
PHP	~3 min	Server-side PHP backend for moderation tools.	REST API	Full
.NET	~3–7 min	.NET backend for marketplace operations.	Typed SDK	Full

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

Marketplace Questions

Common questions about building an art commission marketplace backend with this template.

What should art commission marketplace operators instrument first when expanding to a second location?

How should art commission marketplace teams track asset condition across high-turnover rentals?

Is it feasible to connect art commission marketplace payments, deposits, and refunds through APIs?

How do I show commissions by style tags with Flutter?

How do I manage progress photos in Next.js server actions?

Can React Native cache progress photos offline?

How do I prevent unauthorized milestone releases?

What is the best way to display artists on Android?

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Join teams shipping art commission marketplace products faster with Back4app templates

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Start your art commission marketplace project in minutes. No credit card required.

Choose Technology

Art Commission Marketplace Backend TemplateArtistProfile, CommissionRequest, ProgressPhoto, and PaymentMilestone

Marketplace Takeaways

Understanding the Art Commission Marketplace Backend

Art Commission Marketplace backend overview

Artist Commission Market Features

Artist profiles with portfolio details

Style-based discovery

Stage-by-stage progress photo logs

Milestone payment tracking

Why Build Your Art Commission Marketplace Backend with Back4app?

Marketplace Benefits

Faster commission intake

Progress that buyers can inspect

Payment milestones with context

StyleTag-driven filtering

Clear marketplace ownership

AI bootstrap workflow

Ready to launch your art commission marketplace?

Technical Stack

Commission ER Model

Commission Workflow Sequence

Field Dictionary

Marketplace Access Control

Profile ownership controls

Commission access boundaries

Payment milestone integrity

JSON Schema

Build with AI Agent

API Sandbox

Pick Your Tech Stack

Flutter Art Commission Marketplace Backend

React Art Commission Marketplace Backend

React Native Art Commission Marketplace Backend

Next.js Art Commission Marketplace Backend

JavaScript Art Commission Marketplace Backend

Android Art Commission Marketplace Backend

iOS Art Commission Marketplace Backend

Vue Art Commission Marketplace Backend

Angular Art Commission Marketplace Backend

GraphQL Art Commission Marketplace Backend

REST API Art Commission Marketplace Backend

PHP Art Commission Marketplace Backend

.NET Art Commission Marketplace Backend

What You Get with Every Technology

Unified marketplace data structure

Style-driven discovery for art requests

Progress logging for commission work

Milestone payment tracking for orders

Art Marketplace Stack Comparison

Marketplace Questions

Trusted by developers worldwide

Ready to Build Your Art Commission Marketplace App?

Art Commission Marketplace Backend Template
ArtistProfile, CommissionRequest, ProgressPhoto, and PaymentMilestone