<!-- بسم الله الرحمن الرحيم   -->

**Lambda Exporter — AWS Lambda Functions Export Utility**  

This script exports all AWS Lambda functions (code and configuration) from your account to a local directory, for backup, migration, or auditing.

---

**Requirements**  
- Python 3.7+  
- `boto3`  
- AWS credentials configured (via CLI, environment variables, or IAM role)  

Install:  
```bash
pip install boto3
```

---

**Usage**  

1. **Default (uses default AWS profile and region `us-east-1`)**  
   ```python
   exporter = LambdaExporter()
   exporter.export_all_functions()
   ```

2. **Custom profile and region**  
   ```python
   exporter = LambdaExporter(profile_name='my-profile', region_name='eu-west-1')
   exporter.export_all_functions(base_dir='backups')
   ```

3. **Run directly**  
   Save as `lambda_exporter.py` and run:  
   ```bash
   python lambda_exporter.py
   ```

---

**Output Structure**  
```
lambda_export/
└── export_YYYYMMDD_HHMMSS/
    ├── FunctionName1/
    │   ├── configuration.json
    │   └── [extracted source files...]
    ├── FunctionName2/
    │   ├── configuration.json
    │   └── function_code.bin   # if not a ZIP
    └── export_summary.json
```

- ZIP-based functions are fully extracted.  
- `configuration.json` contains runtime, memory, timeout, env vars, role, etc.  
- `export_summary.json` logs total functions and success count.

---

**Required IAM Permissions**  
```json
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "lambda:ListFunctions",
        "lambda:GetFunction",
        "lambda:GetFunctionConfiguration"
      ],
      "Resource": "*"
    }
  ]
}
```

---

**Important Notes**  
- The script is read-only — it does not modify any AWS resources.  
- Environment variables (including secrets) are included in `configuration.json`. Handle exports securely and avoid committing them to version control.  
- Pre-signed download URLs are used immediately, so expiration is not an issue for typical function sizes.

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