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+# Integrating FHIRVINE as a Module in FHIRFLARE
+
+## Overview
+
+FHIRFLARE is a Flask-based FHIR Implementation Guide (IG) toolkit for managing and validating FHIR packages. This guide explains how to integrate FHIRVINE—a SMART on FHIR proxy—as a module within FHIRFLARE, enabling OAuth2 authentication and FHIR request proxying directly in the application. This modular approach embeds FHIRVINE’s functionality into FHIRFLARE, avoiding the need for a separate proxy service.
+
+## Prerequisites
+
+- FHIRFLARE repository cloned: `https://github.com/Sudo-JHare/FHIRFLARE-IG-Toolkit`.
+- FHIRVINE repository cloned: `<fhirvine-repository-url>`.
+- Python 3.11 and dependencies installed (`requirements.txt` from both projects).
+- A FHIR server (e.g., `http://hapi.fhir.org/baseR4`).
+
+## Integration Steps
+
+### 1. Prepare FHIRFLARE Structure
+
+Ensure FHIRFLARE’s file structure supports modular integration. It should look like:
+
+```
+FHIRFLARE-IG-Toolkit/
+├── app.py
+├── services.py
+├── templates/
+├── static/
+└── requirements.txt
+```
+
+### 2. Copy FHIRVINE Files into FHIRFLARE
+
+FHIRVINE’s core functionality (OAuth2 proxy, app registration) will be integrated as a Flask Blueprint.
+
+- **Copy Files**:
+
+  - Copy `smart_proxy.py`, `forms.py`, `models.py`, and `app.py` (relevant parts) from FHIRVINE into a new `fhirvine/` directory in FHIRFLARE:
+
+    ```
+    FHIRFLARE-IG-Toolkit/
+    ├── fhirvine/
+    │   ├── smart_proxy.py
+    │   ├── forms.py
+    │   ├── models.py
+    │   └── __init__.py
+    ```
+
+  - Copy FHIRVINE’s templates (e.g., `app_gallery/`, `configure/`, `test_client.html`) into `FHIRFLARE-IG-Toolkit/templates/` while maintaining their folder structure.
+
+- **Add Dependencies**:
+
+  - Add FHIRVINE’s dependencies to `requirements.txt` (e.g., `authlib`, `flasgger`, `flask-sqlalchemy`).
+
+### 3. Modify FHIRVINE Code as a Module
+
+- **Create Blueprint in** `fhirvine/__init__.py`:
+
+  ```python
+  from flask import Blueprint
+  
+  fhirvine_bp = Blueprint('fhirvine', __name__, template_folder='templates')
+  
+  from .smart_proxy import *
+  ```
+
+  This registers FHIRVINE as a Flask Blueprint.
+
+- **Update** `smart_proxy.py`:
+
+  - Replace direct `app.route` decorators with `fhirvine_bp.route`. For example:
+
+    ```python
+    @fhirvine_bp.route('/authorize', methods=['GET', 'POST'])
+    def authorize():
+        # Existing authorization logic
+    ```
+
+### 4. Integrate FHIRVINE Blueprint into FHIRFLARE
+
+- **Update** `app.py` **in FHIRFLARE**:
+
+  - Import and register the FHIRVINE Blueprint:
+
+    ```python
+    from fhirvine import fhirvine_bp
+    from fhirvine.models import database, RegisteredApp, OAuthToken, AuthorizationCode, Configuration
+    from fhirvine.smart_proxy import configure_oauth
+    
+    app = Flask(__name__)
+    app.config.from_mapping(
+        SECRET_KEY='your-secure-random-key',
+        SQLALCHEMY_DATABASE_URI='sqlite:////app/instance/fhirflare.db',
+        SQLALCHEMY_TRACK_MODIFICATIONS=False,
+        FHIR_SERVER_URL='http://hapi.fhir.org/baseR4',
+        PROXY_TIMEOUT=10,
+        TOKEN_DURATION=3600,
+        REFRESH_TOKEN_DURATION=86400,
+        ALLOWED_SCOPES='openid profile launch launch/patient patient/*.read offline_access'
+    )
+    
+    database.init_app(app)
+    configure_oauth(app, db=database, registered_app_model=RegisteredApp, oauth_token_model=OAuthToken, auth_code_model=AuthorizationCode)
+    
+    app.register_blueprint(fhirvine_bp, url_prefix='/fhirvine')
+    ```
+
+### 5. Update FHIRFLARE Templates
+
+- **Add FHIRVINE Links to Navbar**:
+
+  - In `templates/base.html`, add links to FHIRVINE features:
+
+    ```html
+    <li class="nav-item">
+        <a class="nav-link" href="{{ url_for('fhirvine.app_gallery') }}">App Gallery</a>
+    </li>
+    <li class="nav-item">
+        <a class="nav-link" href="{{ url_for('fhirvine.test_client') }}">Test Client</a>
+    </li>
+    ```
+
+### 6. Run and Test
+
+- **Install Dependencies**:
+
+  ```bash
+  pip install -r requirements.txt
+  ```
+
+- **Run FHIRFLARE**:
+
+  ```bash
+  flask db upgrade
+  flask run --host=0.0.0.0 --port=8080
+  ```
+
+- **Access FHIRVINE Features**:
+
+  - App Gallery: `http://localhost:8080/fhirvine/app-gallery`
+  - Test Client: `http://localhost:8080/fhirvine/test-client`
+  - Proxy Requests: Use `/fhirvine/oauth2/proxy/<path>` within FHIRFLARE.
+
+## Using FHIRVINE in FHIRFLARE
+
+- **Register Apps**: Use `/fhirvine/app-gallery` to register SMART apps within FHIRFLARE.
+- **Authenticate**: Use `/fhirvine/oauth2/authorize` for OAuth2 flows.
+- **Proxy FHIR Requests**: FHIRFLARE can now make FHIR requests via `/fhirvine/oauth2/proxy`, leveraging FHIRVINE’s authentication.
+
+## Troubleshooting
+
+- **Route Conflicts**: Ensure no overlapping routes between FHIRFLARE and FHIRVINE.
+- **Database Issues**: Verify `SQLALCHEMY_DATABASE_URI` points to the same database.
+- **Logs**: Check `flask run` logs for errors.
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