{
  "endpoints": {
    "/": "GET - API information",
    "/api/extract-dscert": "POST - Extract dsCert and validate data integrity",
    "/api/health": "GET - Health check"
  },
  "service": "CCCD dsCert Extraction and Validation API",
  "usage": {
    "content_type": "application/json",
    "input_format": {
      "dg1": "Base64 encoded DG1 data",
      "dg13": "Base64 encoded DG13 data (optional)",
      "dg14": "Base64 encoded DG14 data (optional)",
      "dg15": "Base64 encoded DG15 data (optional)",
      "dg2": "Base64 encoded DG2 data",
      "sod": "Base64 encoded SOD data"
    },
    "method": "POST",
    "output_format": {
      "data_preservation": "Data integrity and preservation status",
      "dscert_base64": "Base64 content only (no PEM headers)",
      "dscert_txt": "Full PEM format certificate",
      "integrity_report": "Detailed validation results"
    },
    "url": "/api/extract-dscert"
  },
  "version": "1.0"
}