azure 函数中的 HTTP 补丁

Question

我正在寻找一种在 Azure 函数中实现正确 HTTP 路径的方法。我找到了一些示例，这些示例正在检查每个属性的 null 并将其添加到 PATCH 的实体中。我发现这并不理想，而只是一种解决方法。我为 HTTP 触发函数 (v2) 找到的唯一签名是，

public async Task<IActionResult> Run(
        [HttpTrigger(AuthorizationLevel.Anonymous, "HTTP VERB", Route = "")] HttpRequest req,
     ILogger log)
    {
    }

而不是这个，我需要传递“ JsonPatchDocument ”，客户端将能够传递 PATCH 文档，如下所示，

public async Task<IActionResult> Run(
    [HttpTrigger(AuthorizationLevel.Anonymous, "PATCH", Route = "")] **JsonPatchDocument<Customer> patch**,
 ILogger log)
{
}

public async Task<IActionResult> Run(
        [HttpTrigger(AuthorizationLevel.Anonymous, "HTTP VERB", Route = "")] HttpRequest req,
     ILogger log)
    {
    }

这样我就可以使用“ patch.ApplyTo() ”来路径属性。是否可以在 azure 功能中进行？

Answer 1

我为此找到了解决方案。我无法将“JsonPatchDcument”类型传递给 azure 函数，但我可以将请求正文解析为 JsonPatchDocument，如下所示，

FunctionName("PatchInstitute")]
    public async Task<IActionResult> PatchInstitute(
        [HttpTrigger(AuthorizationLevel.Anonymous, "patch", Route = ApiConstants.BaseRoute + "/institute/{instituteId}")] HttpRequest req,
        ILogger log, [Inject]IInstituteValidator instituteValidator, int instituteId, [Inject] IInstituteProvider instituteProvider)
    {
        try
        {
           //get existing record with Id here
            var instituteDto = instituteProvider.GetInstitueProfileById(instituteId);



            using (StreamReader streamReader = new StreamReader(req.Body))
            {
                var requestBody = await streamReader.ReadToEndAsync();

                //Deserialize bosy to strongly typed JsonPatchDocument
                JsonPatchDocument<InstituteDto> jsonPatchDocument = JsonConvert.DeserializeObject<JsonPatchDocument<InstituteDto>>(requestBody);

                //Apply patch here
                jsonPatchDocument.ApplyTo(instituteDto);

                //Apply the change
                instituteProvider.UpdateInstitute(instituteDto);

            }

            return new OkResult();

        }
        catch (Exception ex)
        {
            log.LogError(ex.ToString());
           // return Generic Exception here
        }
    }

从客户端传递的 JsonPathDocument 如下所示，

FunctionName("PatchInstitute")]
    public async Task<IActionResult> PatchInstitute(
        [HttpTrigger(AuthorizationLevel.Anonymous, "patch", Route = ApiConstants.BaseRoute + "/institute/{instituteId}")] HttpRequest req,
        ILogger log, [Inject]IInstituteValidator instituteValidator, int instituteId, [Inject] IInstituteProvider instituteProvider)
    {
        try
        {
           //get existing record with Id here
            var instituteDto = instituteProvider.GetInstitueProfileById(instituteId);



            using (StreamReader streamReader = new StreamReader(req.Body))
            {
                var requestBody = await streamReader.ReadToEndAsync();

                //Deserialize bosy to strongly typed JsonPatchDocument
                JsonPatchDocument<InstituteDto> jsonPatchDocument = JsonConvert.DeserializeObject<JsonPatchDocument<InstituteDto>>(requestBody);

                //Apply patch here
                jsonPatchDocument.ApplyTo(instituteDto);

                //Apply the change
                instituteProvider.UpdateInstitute(instituteDto);

            }

            return new OkResult();

        }
        catch (Exception ex)
        {
            log.LogError(ex.ToString());
           // return Generic Exception here
        }
    }

在这里你可以传递任何要更新的字段（补丁）