Question

我正在尝试构建一个仅提取特定数据的GET请求，但我在使用OData时遇到了问题。从API中提取的对象如下所示：

    {
    "PostalCode": "48103",
    "FranchiseId": 397,
    "Franchise": {
        "ConceptId": 1,
        "CreatedDateTime": "2015-10-20T18:36:46.353",
        "ModifiedDateTime": "2018-01-26T14:35:33.447",
        "DeletedDateTime": null,
        "DoingBusinessAs": "Appliance.inc",
        "Status": "Active",
        "IsOwned": true,
        "FranchiseeName": "Appliance Inc - Ann Arbor, MI - MLY 1001",
        "LicenseNumber": "ML89023",
        "City": "Ann Arbor",
        "StateAbbr": "MI",
        "PostalCode": "48104",
        "ContactFirstName": "Doug",
        "ContactLastName": "Smith",
        "Country": "United States"
    }
},

我正在执行此GET请求以获取该数据：

#url#&$expand=Franchise&$select=FranchiseId, PostalCode

我正在使用＆amp; $ expand = Franchise，因为我需要＆＃34; FranchiseeName＆＃34;来自特许经营对象，但我不想拉出该对象的其余数据。如何编写请求，因此我只提取三个字段：PostalCode，FranchiseId，FranchiseeName。该对象应如下所示：

{
"PostalCode": "48103",
"FranchiseId": 397,
"FranchiseeName": "Appliance.inc"
}

Answer 1

我认为#url#是您实体的OData URI的占位符，例如http://server/odata/entityName。

以下网址应该可以获得您需要的数据：

http://server/odata/entityName?$select=PostalCode,FranchiseId&$expand=Franchise($select=FranchiseeName)

这应该只返回所需的数据，但仍然具有与完整数据相同的结构，例如：

{
  "PostalCode": "48103",
  "FranchiseId": 397,
  "Franchise": {
    "FranchiseeName": "Appliance.inc"
  }
}

展开并过滤OData

1 个答案: