如何查询所有现有字段的元数据 [英] How to query metadata for all existing fields

问题描述

我们希望使客户端能够发布到以下端点:

We want to enable the client to post to an endpoint such as:

    [Route("Account", Name = "CreateAccount", Order = 1)]
    [HttpPost]
    public Account CreateAccount([FromBody] Account account)
    {
        var newAccount = _accountService.CreateAccountEntity(account);
        return newAccount;
    }

我们知道可以做到:

We know that this can be done:

POST [Organization URI]/api/data/v8.2/accounts HTTP/1.1
Content-Type: application/json; charset=utf-8
OData-MaxVersion: 4.0
OData-Version: 4.0
Accept: application/json

{
    "name": "Sample Account",
    "creditonhold": false,
    "address1_latitude": 47.639583,
    "description": "This is the description of the sample account",
    "revenue": 5000000,
    "accountcategorycode": 1
}

我们如何向消费者公开每个帖子/put的要求?

用不同的措辞表述，如果我需要使用CRM 2016提供的Web API更新自定义或基本实体上的记录，我如何知道创建或更新实体需要哪些字段?

修改: 我已经尝试过Hank的方法，但是并没有在实体上返回任何元数据:

I've attempted Hank's approach, and this didn't return any metadata on the entity:

推荐答案

您可以使用WebApi端点查询Dynamics 365元数据，如

You can query the Dynamics 365 metadata using the WebApi endpoint, as shown in the SDK.

例如，要检索account实体的所有属性(包括需求级别):

For example, to retrieve all the attributes (which includes the requirement level) for account entity:

GET [Organization URI]/api/data/v8.2/EntityDefinitions(LogicalName='account')/Attributes HTTP/1.1
OData-MaxVersion: 4.0
OData-Version: 4.0
Accept: application/json
Content-Type: application/json; charset=utf-8

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