# trax-project/trax3-starter-lrs architecture

> Architecture diagram of the GitHub repository trax-project/trax3-starter-lrs, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-30). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/trax-project/trax3-starter-lrs
- Repository: https://github.com/trax-project/trax3-starter-lrs

## Overview

TRAX LRS Starter is a Laravel-hosted xAPI Learning Record Store focused on accepting and managing learning records, rather than analytics. The documented workflow is an xAPI client authenticating to the gateway, then storing and managing records. Configuration shows distinct data areas for statements, agents, profiles, states, and vocabulary; the README also documents a default endpoint and credentials. The core gateway implementation is supplied by the external trax3/core dependency, so its internal processing and storage calls cannot be verified from the sampled repository files.

Main entry points: [`config/trax.php`](https://github.com/trax-project/trax3-starter-lrs/blob/master/config/trax.php) (xAPI gateway), [`public/index.php`](https://github.com/trax-project/trax3-starter-lrs/blob/master/public/index.php) (HTTP entry), [`bootstrap/app.php`](https://github.com/trax-project/trax3-starter-lrs/blob/master/bootstrap/app.php) (Laravel bootstrap), [`config/auth.php`](https://github.com/trax-project/trax3-starter-lrs/blob/master/config/auth.php) (Authentication config)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_runtime["Request runtime"]
  node_web_entry["HTTP entry<br/>[index.php]"]
  node_laravel_boot["Laravel bootstrap<br/>[app.php]"]
  node_trax_provider["TRAX framework<br/>[providers.php]"]
end

subgraph group_lrs["LRS capabilities"]
  node_gateway["xAPI gateway<br/>[trax.php]"]
  node_statements[("Statements<br/>[database.php]")]
  node_agents[("Agents<br/>[database.php]")]
  node_profiles[("Profiles and states<br/>[database.php]")]
  node_vocabulary[("Vocabulary<br/>[database.php]")]
  node_lrs_logging[("LRS logging<br/>[database.php]")]
end

subgraph group_data["Data configuration"]
end

subgraph group_identity["Identity and interface"]
  node_user_model["User model<br/>[User.php]"]
  node_auth_config["Authentication config<br/>[auth.php]"]
  node_starter_view["Welcome interface<br/>[welcome.blade.php]"]
end

node_client(("xAPI client"))

node_client -->|"sends requests"| node_web_entry
node_web_entry -->|"boots application"| node_laravel_boot
node_laravel_boot -->|"loads providers"| node_trax_provider
node_client -->|"uses xAPI endpoint"| node_gateway
node_gateway -.->|"stores statements"| node_statements
node_gateway -.->|"manages agents"| node_agents
node_gateway -.->|"manages profiles"| node_profiles
node_gateway -.->|"uses vocabulary"| node_vocabulary
node_gateway -.->|"records activity"| node_lrs_logging
node_auth_config -->|"configures provider"| node_user_model

click node_web_entry "https://github.com/trax-project/trax3-starter-lrs/blob/master/public/index.php"
click node_laravel_boot "https://github.com/trax-project/trax3-starter-lrs/blob/master/bootstrap/app.php"
click node_trax_provider "https://github.com/trax-project/trax3-starter-lrs/blob/master/bootstrap/providers.php"
click node_gateway "https://github.com/trax-project/trax3-starter-lrs/blob/master/config/trax.php"
click node_statements "https://github.com/trax-project/trax3-starter-lrs/blob/master/config/database.php"
click node_agents "https://github.com/trax-project/trax3-starter-lrs/blob/master/config/database.php"
click node_profiles "https://github.com/trax-project/trax3-starter-lrs/blob/master/config/database.php"
click node_vocabulary "https://github.com/trax-project/trax3-starter-lrs/blob/master/config/database.php"
click node_lrs_logging "https://github.com/trax-project/trax3-starter-lrs/blob/master/config/database.php"
click node_user_model "https://github.com/trax-project/trax3-starter-lrs/blob/master/app/Models/User.php"
click node_auth_config "https://github.com/trax-project/trax3-starter-lrs/blob/master/config/auth.php"
click node_starter_view "https://github.com/trax-project/trax3-starter-lrs/blob/master/resources/views/welcome.blade.php"

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_web_entry,node_laravel_boot,node_trax_provider,node_client toneBlue
class node_gateway,node_statements,node_agents,node_profiles,node_vocabulary,node_lrs_logging toneAmber
class node_user_model,node_auth_config,node_starter_view toneRose
```

## Components

### Request runtime

- [HTTP entry](https://github.com/trax-project/trax3-starter-lrs/blob/master/public/index.php): `public/index.php`
- [Laravel bootstrap](https://github.com/trax-project/trax3-starter-lrs/blob/master/bootstrap/app.php): `bootstrap/app.php`
- [TRAX framework](https://github.com/trax-project/trax3-starter-lrs/blob/master/bootstrap/providers.php): `bootstrap/providers.php`

### LRS capabilities

- [xAPI gateway](https://github.com/trax-project/trax3-starter-lrs/blob/master/config/trax.php): `config/trax.php`
- [Statements](https://github.com/trax-project/trax3-starter-lrs/blob/master/config/database.php): `config/database.php`
- [Agents](https://github.com/trax-project/trax3-starter-lrs/blob/master/config/database.php): `config/database.php`
- [Profiles and states](https://github.com/trax-project/trax3-starter-lrs/blob/master/config/database.php): `config/database.php`
- [Vocabulary](https://github.com/trax-project/trax3-starter-lrs/blob/master/config/database.php): `config/database.php`
- [LRS logging](https://github.com/trax-project/trax3-starter-lrs/blob/master/config/database.php): `config/database.php`

### Identity and interface

- [User model](https://github.com/trax-project/trax3-starter-lrs/blob/master/app/Models/User.php): `app/Models/User.php`
- [Authentication config](https://github.com/trax-project/trax3-starter-lrs/blob/master/config/auth.php): `config/auth.php`
- [Welcome interface](https://github.com/trax-project/trax3-starter-lrs/blob/master/resources/views/welcome.blade.php): `resources/views/welcome.blade.php`

### Other components

- **xAPI client**

## Connections

- xAPI client → HTTP entry: sends requests (evidence: `README.md`)
- HTTP entry → Laravel bootstrap: boots application (evidence: `public/index.php`)
- Laravel bootstrap → TRAX framework: loads providers (evidence: `bootstrap/providers.php`)
- xAPI client → xAPI gateway: uses xAPI endpoint (evidence: `README.md`)
- xAPI gateway → Statements: stores statements
- xAPI gateway → Agents: manages agents
- xAPI gateway → Profiles and states: manages profiles
- xAPI gateway → Vocabulary: uses vocabulary
- xAPI gateway → LRS logging: records activity
- Authentication config → User model: configures provider (evidence: `config/auth.php`)