GridFS + NodeJS从mongoDB检索图像并以html显示

Question

我从mongoDB中获得了带有图像的以下JSON，但我不知道如何显示它：

{
    $lookup: {
        from: "users",
        localField: "users",
        foreignField: "_id",
        as: "users"
    }
}

fs.chunks:

{
        "_id" : ObjectId("542e684a8a1cec178a172673"),
        "n" : 1,
        "data" : BinData(0,"2N6DSSfbCN/LLacNDYrJUQDEZgimMUwFpQGoJP0RU19Bi4PM82DjrUnKhE/P9v7P8ZveD1oDpFBM0iml9NE3WQmAvYFoG+nhD73Jm4N9b4LpylaAN5Ef+gVdgGSTAfSUwOikXoVick5pSQCkRmTCU5NT9VVfjHdAx74/ZhFRj+TIRjzlAhzkACBElzgMwGCo7tX+FYrpQLJ5KRmXiwFFwsNtHHzXiK1eu+CG1FumhGpA/qdG8CdDgD1xUHEcerMGO/eLGR9ML7ni/VjXxWzqp2j5DG2/WuKNv7xd3Kz/vr0MctJhuaBIl35YrKhdLnzqDa0uDa6bm4jz+eNyAI2hQbayGo4kVPFe8W7wFpY7qfBvnB9kbocxfZSdADDUNwYaydpT8lIcKEN9XfQJOYZvHp0El"),
        "files_id" : ObjectId("542e684a8a1cec178a172671")
}