Azure函数CosmosDB查询序列化

时间:2017-06-09 09:05:31

标签: linq azure azure-cosmosdb azure-functions

在使用Azure函数和DocumentClient序列化linq查询期间,我遇到了一个问题。查询不使用我的POCO的JsonProperty属性。

linq查询返回{{"query":"SELECT * FROM root WHERE (root[\"ObjectType\"] = \"Campaign\") "}}而不是{{"query":"SELECT * FROM root WHERE (root[\"objectType\"] = \"Campaign\") "}} linq查询和POCO

var query = client.CreateDocumentQuery<Obj>(UriFactory.CreateDocumentCollectionUri("db", "col"))
                            .Where(d => d.ObjectType == "MyObj")
                            .AsEnumerable();
public class Obj
{
   [Newtonsoft.Json.JsonProperty("objectType")]
   public string ObjectType { get; set; }
}

azure函数是使用azure-functions-core-tools启动的预编译函数。

我的开发环境是:

  • VS 2017
  • azure-functions-core-tools(最新)
  • Net 4.6.1
  • DocumentDB SDK:1.14.0
  • Newtonsoft:10.0.0

相同的代码在iisexpress中运行时效果很好。

感谢您的帮助!

1 个答案:

答案 0 :(得分:1)

我不能重复这一点。有这个功能

public static class HttpTriggerCSharp
{
    [FunctionName("HttpTriggerCSharp")]
    public static async Task<HttpResponseMessage> Run([HttpTrigger()] HttpRequestMessage req, TraceWriter log)
    {
        var client = new DocumentClient(new Uri("https://example.com"), string.Empty);
        var query = client.CreateDocumentQuery<Obj>(UriFactory.CreateDocumentCollectionUri("db", "col"))
                        .Where(d => d.ObjectType == "MyObj")
                        .ToString();
        log.Info(query);
        return req.CreateResponse(HttpStatusCode.OK, "OK");
    }
}

public class Obj
{
    [Newtonsoft.Json.JsonProperty("objectType")]
    public string ObjectType { get; set; }
}

正确打印{"query":"SELECT * FROM root WHERE (root[\"objectType\"] = \"MyObj\") "}

你能试试吗?

这些是我csproj

中的所有软件包
<PackageReference Include="Microsoft.Azure.DocumentDB" Version="1.14.1" />
<PackageReference Include="Microsoft.Azure.WebJobs" Version="2.1.0-beta1" />
<PackageReference Include="Microsoft.Azure.WebJobs.Extensions.Http" Version="1.0.0-beta1" />
<PackageReference Include="Microsoft.NET.Sdk.Functions" Version="1.0.0-alpha5" />