问题描述

我正在尝试使用 Azure Functions httpTrigger 调用从我的数据库中删除一个项目.

I am trying to use an Azure Functions httpTrigger call to delete an item from my database.

import { CosmosClient,  } from '@azure/cosmos'

const httpTrigger: AzureFunction = async function (context: Context, req: HttpRequest): Promise<void> {
    const client = new CosmosClient(process.env.cosmosDB)
    const database = client.database('testDB');
    const container = database.container('workers');
    const item = container.item('28a31558-ff8c-40c3-a7e8-1e8904c5ff72', '/id')
    console.log(await item.delete())
}

我什至尝试将值硬编码到代码中(如您所见)，但我总是会收到 404 not found 错误:

I even tried to hardcode the values into the code (as you can see) but I will always get 404 not found error:

Executed 'Functions.worker-delete' (Failed, Id=81ab43cf-a223-48af-89e1-a15676346ef0)
System.Private.CoreLib: Exception while executing function: Functions.worker-delete. System.Private.CoreLib: Result: Failure
Exception: Error: Entity with the specified id does not exist in the system., 
RequestStartTime: 2020-05-11T12:30:44.4010890Z, RequestEndTime: 2020-05-11T12:30:44.4010890Z,  Number of regions attempted:1
ResponseTime: 2020-05-11T12:30:44.4010890Z, StoreResult: StorePhysicalAddress: xxx, LSN: 769914, GlobalCommittedLsn: 769914, PartitionKeyRangeId: 0, IsValid: True, StatusCode: 404, SubStatusCode: 0, RequestCharge: 1.24, ItemLSN: -1, SessionToken: -1#769914, UsingLocalLSN: False, TransportException: null, ResourceType: Document, OperationType: Delete
, Microsoft.Azure.Documents.Common/2.10.0
Stack: Error: Entity with the specified id does not exist in the system., 
RequestStartTime: 2020-05-11T12:30:44.4010890Z, RequestEndTime: 2020-05-11T12:30:44.4010890Z,  Number of regions attempted:1
ResponseTime: 2020-05-11T12:30:44.4010890Z, StoreResult: StorePhysicalAddress: xxx, LSN: 769914, GlobalCommittedLsn: 769914, PartitionKeyRangeId: 0, IsValid: True, StatusCode: 404, SubStatusCode: 0, RequestCharge: 1.24, ItemLSN: -1, SessionToken: -1#769914, UsingLocalLSN: False, TransportException: null, ResourceType: Document, OperationType: Delete
, Microsoft.Azure.Documents.Common/2.10.0
    at xxx/node_modules/@azure/cosmos/dist/index.js:6973:39
    at Generator.next (<anonymous>)
    at fulfilled (xxx/node_modules/tslib/tslib.js:110:62)
    at process._tickCallback (internal/process/next_tick.js:68:7).

我检查了三次:

• 连接字符串
• 数据库名称
• 容器名称
• 项目 ID
• 分区

推荐答案

通过container.item()获取文档时，两个参数分别为:

When retrieving a document via container.item(), the two parameters are:

• 文档编号
• 分区键

第二个参数(分区键)需要是分区键的值.在您的示例中，您使用的是分区键的 path，因此它正在检查/id"的分区键值:

The 2nd parameter (partition key) needs to be the value of the partition key. In your example, you had the path to the partition key instead, so it's checking for a partition key value of "/id":

const item = container.item('28a31558-ff8c-40c3-a7e8-1e8904c5ff72', '/id')

这需要改成:

const item = container.item('28a31558-ff8c-40c3-a7e8-1e8904c5ff72', '<partition-key-value')

这篇关于无法从 CosmosDB 中删除项目的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！