Stack
PERN Stack (Postgres)
Postgres, Express, React, Node.js. SQL-backed JS stack.
Architecture Diagram
%% Autogenerated pern-stack
graph TD
classDef standard fill:#1e293b,stroke:#38bdf8,stroke-width:1px,color:#e5e7eb;
classDef c-actor fill:#1e293b,stroke:#e5e7eb,stroke-width:1px,stroke-dasharray: 5 5,color:#e5e7eb;
classDef c-compute fill:#422006,stroke:#fb923c,stroke-width:1px,color:#fed7aa;
classDef c-database fill:#064e3b,stroke:#34d399,stroke-width:1px,color:#d1fae5;
classDef c-network fill:#2e1065,stroke:#a855f7,stroke-width:1px,color:#f3e8ff;
classDef c-storage fill:#450a0a,stroke:#f87171,stroke-width:1px,color:#fee2e2;
classDef c-security fill:#450a0a,stroke:#f87171,stroke-width:1px,color:#fee2e2;
classDef c-gateway fill:#2e1065,stroke:#a855f7,stroke-width:1px,color:#f3e8ff;
classDef c-container fill:#422006,stroke:#facc15,stroke-width:1px,color:#fef9c3;
subgraph cloud ["Deployment Infrastructure"]
direction TB
cdn(("CDN / Storage
network
Serves React Bundle")) class cdn c-network api("Express API
compute
Node.js Backend") class api c-compute db[("PostgreSQL
database
Relational Database")] class db c-database end %% Orphans users(("Users
actor
Browser / Mobile")) class users c-actor spa("React SPA
container
Client-Side App") class spa c-compute %% Edges users -.-> cdn users -.-> spa spa -.-> api api -.-> db
network
Serves React Bundle")) class cdn c-network api("Express API
compute
Node.js Backend") class api c-compute db[("PostgreSQL
database
Relational Database")] class db c-database end %% Orphans users(("Users
actor
Browser / Mobile")) class users c-actor spa("React SPA
container
Client-Side App") class spa c-compute %% Edges users -.-> cdn users -.-> spa spa -.-> api api -.-> db
Description
The PERN stack is similar to MERN but chooses PostgreSQL for data integrity and relational mapping.
It is ideal for applications that require complex queries, transactions, and structured data schemas.
Tech Stack
| Component | Technology |
|---|---|
| Frontend | React |
| Backend | Node.js (Express) |
| Db | PostgreSQL |
| Host | VM / PaaS |
System Components
The following distinct entities are defined in this architecture:
| Component | Type | Notes |
|---|---|---|
| Users | actor | Browser / Mobile |
| CDN / Storage | network | Serves React Bundle |
| React SPA | container | Client-Side App |
| Express API | compute | Node.js Backend |
| PostgreSQL | database | Relational Database |
Interested in this architecture?
Let's discuss how to adapt the PERN Stack (Postgres) stack for your specific needs.
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