# bahaaahmed1990/redux architecture

> Architecture diagram of the GitHub repository bahaaahmed1990/redux, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-11-11). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/bahaaahmed1990/redux
- Repository: https://github.com/bahaaahmed1990/redux

## Overview

Redux is a small JavaScript state-container library: applications dispatch actions to a store, reducers calculate updated state, and subscribers can observe changes. The graph focuses on that runtime and its middleware, reducer composition, and supporting contracts. Source excerpts establish the main calls; the README documents the user-facing model. Some implementation details, including observable behavior, are only partially sampled, so uncertain links are omitted.

Main entry points: [`src/createStore.ts`](https://github.com/bahaaahmed1990/redux/blob/master/src/createStore.ts) (Store API), [`src/combineReducers.ts`](https://github.com/bahaaahmed1990/redux/blob/master/src/combineReducers.ts) (Combined reducer), [`src/applyMiddleware.ts`](https://github.com/bahaaahmed1990/redux/blob/master/src/applyMiddleware.ts) (Middleware enhancer), [`src/types/store.ts`](https://github.com/bahaaahmed1990/redux/blob/master/src/types/store.ts) (Store contracts)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_store["Store runtime"]
  node_actions["Actions and creators<br/>[actions.ts]"]
  node_bound["Bound creators"]
  node_store_api["Store API<br/>[createStore.ts]"]
  node_state[("State tree<br/>[createStore.ts]")]
end

subgraph group_composition["Reducer and middleware"]
  node_combined["Combined reducer<br/>[combineReducers.ts]"]
  node_middleware["Middleware enhancer<br/>[applyMiddleware.ts]"]
  node_compose["Function composition<br/>[compose.ts]"]
end

subgraph group_contracts["Types and utilities"]
  node_store_types["Store contracts<br/>[store.ts]"]
  node_reducer_types["Reducer contracts<br/>[reducers.ts]"]
  node_middleware_types["Middleware contracts<br/>[middleware.ts]"]
  node_action_types["Action contracts<br/>[actions.ts]"]
  node_action_constants["Internal action types<br/>[actionTypes.ts]"]
  node_plain_object["Plain-object check<br/>[isPlainObject.ts]"]
  node_kind["Value type check<br/>[kindOf.ts]"]
  node_warning["Warnings<br/>[warning.ts]"]
  node_observable["Observable symbol"]
end

node_app(("Application code"))

node_app -->|"creates"| node_actions
node_app -->|"dispatches to"| node_store_api
node_bound -->|"calls"| node_actions
node_store_api -->|"manages"| node_state
node_store_api -->|"invokes reducer"| node_combined
node_store_api -->|"applies enhancer"| node_middleware
node_combined -->|"uses"| node_action_constants
node_combined -->|"validates state"| node_plain_object
node_combined -->|"checks values"| node_kind
node_combined -->|"reports issues"| node_warning
node_middleware -->|"composes dispatch"| node_compose
node_middleware -->|"enhances creator"| node_store_api
node_store_api -->|"validates actions"| node_plain_object
node_store_api -->|"checks values"| node_kind
node_store_api -->|"uses"| node_action_constants
node_store_api -->|"supports observable"| node_observable
node_store_api -->|"implements contract"| node_store_types
node_combined -->|"uses contract"| node_reducer_types
node_middleware -->|"uses contract"| node_middleware_types
node_middleware_types -->|"uses dispatch type"| node_store_types
node_reducer_types -->|"uses action type"| node_action_types
node_store_types -->|"uses action type"| node_action_types
node_store_types -->|"uses reducer type"| node_reducer_types

click node_actions "https://github.com/bahaaahmed1990/redux/blob/master/src/types/actions.ts"
click node_bound "https://github.com/bahaaahmed1990/redux/blob/master/src/bindActionCreators.ts"
click node_store_api "https://github.com/bahaaahmed1990/redux/blob/master/src/createStore.ts"
click node_state "https://github.com/bahaaahmed1990/redux/blob/master/src/createStore.ts"
click node_combined "https://github.com/bahaaahmed1990/redux/blob/master/src/combineReducers.ts"
click node_middleware "https://github.com/bahaaahmed1990/redux/blob/master/src/applyMiddleware.ts"
click node_compose "https://github.com/bahaaahmed1990/redux/blob/master/src/compose.ts"
click node_store_types "https://github.com/bahaaahmed1990/redux/blob/master/src/types/store.ts"
click node_reducer_types "https://github.com/bahaaahmed1990/redux/blob/master/src/types/reducers.ts"
click node_middleware_types "https://github.com/bahaaahmed1990/redux/blob/master/src/types/middleware.ts"
click node_action_types "https://github.com/bahaaahmed1990/redux/blob/master/src/types/actions.ts"
click node_action_constants "https://github.com/bahaaahmed1990/redux/blob/master/src/utils/actionTypes.ts"
click node_plain_object "https://github.com/bahaaahmed1990/redux/blob/master/src/utils/isPlainObject.ts"
click node_kind "https://github.com/bahaaahmed1990/redux/blob/master/src/utils/kindOf.ts"
click node_warning "https://github.com/bahaaahmed1990/redux/blob/master/src/utils/warning.ts"
click node_observable "https://github.com/bahaaahmed1990/redux/blob/master/src/utils/symbol-observable.ts"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_actions,node_bound,node_store_api,node_state toneBlue
class node_combined,node_middleware,node_compose toneAmber
class node_store_types,node_reducer_types,node_middleware_types,node_action_types,node_action_constants,node_plain_object,node_kind,node_warning,node_observable toneMint
class node_app toneIndigo
```

## Components

### Store runtime

- [Actions and creators](https://github.com/bahaaahmed1990/redux/blob/master/src/types/actions.ts): `src/types/actions.ts`
- [Bound creators](https://github.com/bahaaahmed1990/redux/blob/master/src/bindActionCreators.ts): `src/bindActionCreators.ts`
- [Store API](https://github.com/bahaaahmed1990/redux/blob/master/src/createStore.ts): `src/createStore.ts`
- [State tree](https://github.com/bahaaahmed1990/redux/blob/master/src/createStore.ts): `src/createStore.ts`

### Reducer and middleware

- [Combined reducer](https://github.com/bahaaahmed1990/redux/blob/master/src/combineReducers.ts): `src/combineReducers.ts`
- [Middleware enhancer](https://github.com/bahaaahmed1990/redux/blob/master/src/applyMiddleware.ts): `src/applyMiddleware.ts`
- [Function composition](https://github.com/bahaaahmed1990/redux/blob/master/src/compose.ts): `src/compose.ts`

### Types and utilities

- [Store contracts](https://github.com/bahaaahmed1990/redux/blob/master/src/types/store.ts): `src/types/store.ts`
- [Reducer contracts](https://github.com/bahaaahmed1990/redux/blob/master/src/types/reducers.ts): `src/types/reducers.ts`
- [Middleware contracts](https://github.com/bahaaahmed1990/redux/blob/master/src/types/middleware.ts): `src/types/middleware.ts`
- [Action contracts](https://github.com/bahaaahmed1990/redux/blob/master/src/types/actions.ts): `src/types/actions.ts`
- [Internal action types](https://github.com/bahaaahmed1990/redux/blob/master/src/utils/actionTypes.ts): `src/utils/actionTypes.ts`
- [Plain-object check](https://github.com/bahaaahmed1990/redux/blob/master/src/utils/isPlainObject.ts): `src/utils/isPlainObject.ts`
- [Value type check](https://github.com/bahaaahmed1990/redux/blob/master/src/utils/kindOf.ts): `src/utils/kindOf.ts`
- [Warnings](https://github.com/bahaaahmed1990/redux/blob/master/src/utils/warning.ts): `src/utils/warning.ts`
- [Observable symbol](https://github.com/bahaaahmed1990/redux/blob/master/src/utils/symbol-observable.ts): `src/utils/symbol-observable.ts`

### Other components

- **Application code**

## Connections

- Application code → Actions and creators: creates (evidence: `README.md`)
- Application code → Store API: dispatches to (evidence: `README.md`)
- Bound creators → Actions and creators: calls (evidence: `src/bindActionCreators.ts`)
- Store API → State tree: manages (evidence: `src/createStore.ts`)
- Store API → Combined reducer: invokes reducer (evidence: `src/createStore.ts`)
- Store API → Middleware enhancer: applies enhancer (evidence: `src/createStore.ts`)
- Combined reducer → Internal action types: uses (evidence: `src/combineReducers.ts`)
- Combined reducer → Plain-object check: validates state (evidence: `src/combineReducers.ts`)
- Combined reducer → Value type check: checks values (evidence: `src/combineReducers.ts`)
- Combined reducer → Warnings: reports issues (evidence: `src/combineReducers.ts`)
- Middleware enhancer → Function composition: composes dispatch (evidence: `src/applyMiddleware.ts`)
- Middleware enhancer → Store API: enhances creator (evidence: `src/applyMiddleware.ts`)
- Store API → Plain-object check: validates actions (evidence: `src/createStore.ts`)
- Store API → Value type check: checks values (evidence: `src/createStore.ts`)
- Store API → Internal action types: uses (evidence: `src/createStore.ts`)
- Store API → Observable symbol: supports observable (evidence: `src/createStore.ts`)
- Store API → Store contracts: implements contract (evidence: `src/createStore.ts`)
- Combined reducer → Reducer contracts: uses contract (evidence: `src/combineReducers.ts`)
- Middleware enhancer → Middleware contracts: uses contract (evidence: `src/applyMiddleware.ts`)
- Middleware contracts → Store contracts: uses dispatch type (evidence: `src/types/middleware.ts`)
- Reducer contracts → Action contracts: uses action type (evidence: `src/types/reducers.ts`)
- Store contracts → Action contracts: uses action type (evidence: `src/types/store.ts`)
- Store contracts → Reducer contracts: uses reducer type (evidence: `src/types/store.ts`)