destination(req, file, cb) {
        cb(null, FileSystemManager.getFilesDirectoryPath());
      }
@api {get} /config Config
@apiName Config
@apiGroup Helper

@apiDescription Get config.json content loaded by Opendatacam

@apiSuccessExample {json} Success Response:
{
        "OPENDATACAM_VERSION": "3.0.2",
        "PATH_TO_YOLO_DARKNET": "/darknet",
        "VIDEO_INPUT": "TO_REPLACE_VIDEO_INPUT",
        "NEURAL_NETWORK": "TO_REPLACE_NEURAL_NETWORK",
        "VIDEO_INPUTS_PARAMS": {
          "file": "opendatacam_videos/demo.mp4",
          "usbcam": "v4l2src device=/dev/video0 ! video/x-raw, framerate=30/1, width=640, height=360 ! videoconvert ! appsink",
          "experimental_raspberrycam_docker": "v4l2src device=/dev/video2 ! video/x-raw, framerate=30/1, width=640, height=360 ! videoconvert ! appsink",
          "raspberrycam_no_docker": "nvarguscamerasrc ! video/x-raw(memory:NVMM),width=1280, height=720, framerate=30/1, format=NV12 ! nvvidconv ! video/x-raw, format=BGRx, width=640, height=360 ! videoconvert ! video/x-raw, format=BGR ! appsink",
          "remote_cam": "YOUR IP CAM STREAM (can be .m3u8, MJPEG ...), anything supported by opencv"
        },
        "VALID_CLASSES": [
          "*"
        ],
        "DISPLAY_CLASSES": [
          {
            "class": "bicycle",
            "icon": "1F6B2.svg"
          },
          {
            "class": "person",
            "icon": "1F6B6.svg"
          },
          {
            "class": "truck",
            "icon": "1F69B.svg"
          },
          {
            "class": "motorbike",
            "icon": "1F6F5.svg"
          },
          {
            "class": "car",
            "icon": "1F697.svg"
          },
          {
            "class": "bus",
            "icon": "1F68C.svg"
          }
        ],
        "PATHFINDER_COLORS": [
          "#1f77b4",
          "#ff7f0e",
          "#2ca02c",
          "#d62728",
          "#9467bd",
          "#8c564b",
          "#e377c2",
          "#7f7f7f",
          "#bcbd22",
          "#17becf"
        ],
        "COUNTER_COLORS": {
          "yellow": "#FFE700",
          "turquoise": "#A3FFF4",
          "green": "#a0f17f",
          "purple": "#d070f0",
          "red": "#AB4435"
        },
        "NEURAL_NETWORK_PARAMS": {
          "yolov4": {
            "data": "cfg/coco.data",
            "cfg": "cfg/yolov4-416x416.cfg",
            "weights": "yolov4.weights"
          },
          "yolov4-tiny": {
            "data": "cfg/coco.data",
            "cfg": "cfg/yolov4-tiny.cfg",
            "weights": "yolov4-tiny.weights"
          }
        },
        "TRACKER_ACCURACY_DISPLAY": {
          "nbFrameBuffer": 300,
          "settings": {
            "radius": 3.1,
            "blur": 6.2,
            "step": 0.1,
            "gradient": {
              "1": "red",
              "0.4": "orange"
            },
            "canvasResolutionFactor": 0.1
          }
        },
        "MONGODB_URL": "mongodb://127.0.0.1:27017"
      }