企企云ERP OpenAPI接口--.Net Core Aws Sigv4 快速编码_aws signature version 4

引入AwsSignatureVersion4

1、构造ImmutableCredentials

企企是使用了最简单的accesskey和sercretKey

2、构造StringContent

注意在企企的接口中add，put请求的参数是在body中

get请求的参数是在header中（）

在构造公共头的时候需要注意：

只需要增加Access-Key-Id和Open-Id，没有必要增加X-Amz-Date和Authorization（AwsSignatureVersion4内部已经做了计算）

注意：参数中content的结构。在下面的例子中post，put请求传进来的是json字符串，格式参考不同请求接口。Get中的由于body中没有参数，直接设置未string.Empty.

3、构造HttpClient,由于使用了Abp框架自己的代码是Injet的HttpClient

4、发送请求，读取返回结果

以Get请求为例(get请求做了修正)

   public async Task<string> GetQueueInfoAsync()

        {

           

            var credentials = new ImmutableCredentials(accessKey, secretKey, null);
           

            //构造URL
            var url = qqhubHost + queuePath;

            _httpClient.DefaultRequestHeaders.Add("Access-Key-Id", accessKey);
            _httpClient.DefaultRequestHeaders.Add("Open-Id", openId);
            _httpClient.DefaultRequestHeaders.Add("ContentType","application /json");

           //发送请求，_httpClient是injet的HttpClient实例
           var response = await _httpClient.GetAsync(url, regionName, serviceName, credentials); 
          
            response.EnsureSuccessStatusCode();
            var resultContent = await response.Content.ReadAsStringAsync();
            return resultContent;

        }

以Post请求为例

   public async Task<string> AddAsync(string content)

        {

            var jsonContent = new

            {

                json = content

            };

            var credentials = new ImmutableCredentials(accessKey, secretKey, null);

            var httpcontent = new StringContent(JsonConvert.SerializeObject(jsonContent));

            httpcontent.Headers.ContentType = new MediaTypeHeaderValue("application/json");

            //内部自动加了X-Amz-Date和Authorization，这里没有必要加了,以下同此，不再赘述。

            httpcontent.Headers.Add("Access-Key-Id", accessKey);

            httpcontent.Headers.Add("Open-Id", openId);

            var response = await _httpClient.PostAsync(qqhubHost + addPath, httpcontent, regionName, serviceName, credentials);

            response.EnsureSuccessStatusCode();

            return await response.Content.ReadAsStringAsync();

        }

以put请求为例

  public async Task<string> UpdateAsync(string content)

        {

            var jsonContent = new

            {

                json = content

            };

            var credentials = new ImmutableCredentials(accessKey, secretKey, null);

            var httpcontent = new StringContent(JsonConvert.SerializeObject(jsonContent));

            httpcontent.Headers.ContentType = new MediaTypeHeaderValue("application/json");

            httpcontent.Headers.Add("Access-Key-Id", accessKey);

            httpcontent.Headers.Add("Open-Id", openId);

            var response = await _httpClient.PutAsync(qqhubHost + updatePath, httpcontent, regionName, serviceName, credentials);

            response.EnsureSuccessStatusCode();

            return await response.Content.ReadAsStringAsync();

        }

5、已经测试过的接口

1、根据code获取openId接口路径

2、List接口

6、注意

    1、首先和企企联系获取accessKey和sercretKey

       2、使用code模式获取openId：

https://openapi.77hub.com/auth/openid?requestId={requestId}&accessKeyId={accessKey}&grantType=code&redirectUrl={redirectUrl}。

根据闫老师和暴老师的建议，code模式下redirectUrl可以随意写，返回时在地址栏可以看到code和requestId，比normal方便。

       3、根据code获取openId

       参考https://openapi.77hub.com/doc/description.html，3.1.2接口