Question

我正在使用Firebase REST API来获取我的数据。我正在获取类似

的数据

[ {
  "date_time" : "2018-01-03 03:30:00",
  "domestic" : "0",
  "f_key" : "",
  "id" : 2,
  "international" : "1",
  "league" : "0",
  "match_number" : "One-day practice match",
  "men" : "1",
  "odi" : "1",
  "result" : "Pakistan won by 120 runs",
  "series_name" : "Pakistan tour of New Zealand, 2018",
  "status" : "2",
  "t1_short_name" : "NZ",
  "t20" : "0",
  "t2_short_name" : "PAK",
  "team1" : "New Zealand",
  "team1_flag" : "https://storage.googleapis.com/ce_flags/nz.png",
  "team2" : "Pakistan",
  "team2_flag" : "https://storage.googleapis.com/ce_flags/pak.png",
  "test" : "0",
  "venue" : "Saxton Oval, Nelson",
  "women" : "0"
}, {
  "date_time" : "2018-01-03 03:30:00",
  "domestic" : "0",
  "f_key" : "",
  "id" : 159,
  "international" : "1",
  "league" : "0",
  "match_number" : "One-day practice match",
  "men" : "1",
  "odi" : "1",
  "result" : "Pakistan won by 120 runs",
  "series_name" : "Pakistan tour of New Zealand, 2018",
  "status" : "2",
  "t1_short_name" : "NZ",
  "t20" : "0",
  "t2_short_name" : "PAK",
  "team1" : "New Zealand",
  "team1_flag" : "https://storage.googleapis.com/ce_flags/nz.png",
  "team2" : "Pakistan",
  "team2_flag" : "https://storage.googleapis.com/ce_flags/pak.png",
  "test" : "0",
  "venue" : "Saxton Oval, Nelson",
  "women" : "0"
} ]

但是当我尝试对它们进行分页时，我无法正常使用

https://fir-resttest-4e895.firebaseio.com/Fixtures/All.json?orderBy=%22date_time%22&limitToFirst=2&startAfter=10&print=pretty

我如何在这里使用分页，请帮助我解决这个问题。

谢谢

Answer 1

Firebase数据库查询不像以前那样支持offset参数。

您为startAt传递的值必须是orderBy中具有的属性的类型/格式的值。由于您订购的是date_time，因此startAt的值必须是有效的date_time：

这将为您提供从2018-01-03 03:30:00开始的所有项目。

orderBy="date_time"&limitToFirst=2&startAt="2018-01-03 03:30:00"

还要注意，该参数名为startAt，而不是startAfter。

您的数据集的一些示例：

startAt="2018-06-01 20:30:00"
startAt="2018-06-01"（因此您也可以从子字符串开始）

分页Firebase Rest API

1 个答案: