Firebase函数使用nodejs搜索查询实时数据库

This is my database

这是我的数据库

"Users" : {
        "2rnWA7TF11gSWxec7MsCA5iRhjw1" : {
          "favoriteCount" : 1,
          "interest" : [ "dogs", "cats", "technology" ],
          "speciality" : [ "Swift" ],
        },
        "3Id9oX0ZOEM00XJlnR07gGrHs762" : {
          "favoriteCount" : 7,
          "interest" : [ "dogs", "cats", "Asp.NET MVC", "JavaScript" ],
          "speciality" : [ "Microsoft Technologys" ],

      }
"Users" : {