[英]Add Azure Service Bus Rules via HTTP
我正在更改代碼從Azure Service Bus訂閱接收消息的方式。
以前我使用的是SDK類,現在我更改為http REST調用。
為了創建訂閱規則並為此規則設置過濾器,我總是收到http 400作為返回值。
我創建身體的方式似乎不正確:
var rule = $"https://{serviceBusNamespace}.servicebus.windows.net/{topicPath}/subscriptions/{subscriptionName}/rules/{ruleName}";
var content = new StringContent(@"<RuleDescription xmlns:i=""http://www.w3.org/2001/XMLSchema-instance"" xmlns=""http://schemas.microsoft.com/netservices/2010/10/servicebus/connect"">
< Filter i: type = ""SqlFilter"" >
< SqlExpression > type = 'REPLY' AND username = 'blabla@contoso.com' </ SqlExpression >
</ Filter >
</ RuleDescription >
", Encoding.UTF8, "application/xml");
var requestResponse = await _httpClient.PutAsync(rule, content, new System.Threading.CancellationToken());
我還設置了以下標題:
_httpClient.DefaultRequestHeaders.Add("Authorization", _token);
_httpClient.DefaultRequestHeaders.Add("ContentType", "application/atom+xml");
_httpClient.DefaultRequestHeaders.Add("Accept", "application/atom+xml");
關於缺少什么的任何想法?
根據錯誤信息,這意味着請求參數錯誤。 我不熟悉所提到的api,如果可能的話,您可以共享鏈接。
但是我建議您可以使用“ 規則-創建或更新” 。 這對我們來說很容易使用。 有關服務總線API的更多信息,請參閱此文檔 。
PUT https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ServiceBus/namespaces/{namespaceName}/topics/{topicName}/subscriptions/{subscriptionName}/rules/{ruleName}?api-version=2017-04-01
我也為此做一個演示。
1)獲取訪問令牌
private static async Task<string> GetToken(string tenantId, string clientId, string secretKey)
{
var context = new AuthenticationContext("https://login.windows.net/" + tenantId);
ClientCredential clientCredential = new ClientCredential(clientId, secretKey);
var tokenResponse = await context.AcquireTokenAsync("https://management.azure.com/", clientCredential);
var accessToken = tokenResponse.AccessToken;
return accessToken;
}
2)有關如何獲取tenantId,clientId和密鑰的信息,請參考本教程 。 並且不要忘記分配應用程序角色。
var tenantId = "tenantId";
var clientId = "clientId";
var secretkey = "sercret Key";
var subscriptionId = "subscription Id";
var resurceGroup = "resourceGroup";
var nameSpace = "servicebus namespace";
var topicName = "topicName";
var subscription = "service subscription name";
var ruleName = "rule name";
var token = GetToken(tenantId,clientId,secretkey).Result;
using (var httpClient = new HttpClient())
{
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token);
httpClient.DefaultRequestHeaders.Accept.Add( new MediaTypeWithQualityHeaderValue("application/json"));
var body = "{\"properties\": { \"filterType\": \"SqlFilter\"},\"sqlExpression\": { \"sqlExpression\": \"myproperty=test\"}}";
HttpContent content = new StringContent(body);
var url = $"https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resurceGroup}/providers/Microsoft.ServiceBus/namespaces/{nameSpace}/topics/{topicName}/subscriptions/{subscription}/rules/{ruleName}?api-version=2017-04-01";
var response = httpClient.PutAsync(url, content).Result;
}
測試結果
更新 :
我創建身體的方式似乎不正確:
是的,你是對的。 根據您提到的API文檔 ,我們可以知道主體為xml格式。 但是您的xml代碼字符串不是xml格式,因此可以在線使用xml驗證程序。 字符<
/ >
和標記之間不應有空格。 例如, < Filter i: type = ""SqlFilter"">
應為<Filter i: type = ""SqlFilter"">
但這是經典的Rest API。
我們不再定期更新此內容。 檢查Microsoft產品生命周期,以獲取有關如何支持此產品,服務,技術或API的信息。
我建議您可以使用Azure管理API,我們也可以使用api獲取訪問令牌。
public static string GenerateAccessToken(string resource, string tenantId, string clientId,string secretKey)
{
var url = $"https://login.microsoftonline.com/{tenantId}/oauth2/token";
var body = $"grant_type=client_credentials&client_id={clientId}&client_secret={secretKey}&resource={resource}";
HttpClient client = new HttpClient
{
BaseAddress = new Uri(url)
};
StringContent content = new StringContent(body);
content.Headers.ContentType = new MediaTypeHeaderValue("application/x-www-form-urlencoded");
var result = client.PostAsync(url, content).Result;
var json = JObject.Parse (result.Content.ReadAsStringAsync().Result);
return json["access_token"].ToString();
}
如果您仍然想使用經典api ,那么我還將進行演示。 請嘗試以下代碼。
1.獲取代碼
public static string GetSasToken(string resourceUri, string keyName, string key, TimeSpan ttl)
{
var expiry = GetExpiry(ttl);
string stringToSign = HttpUtility.UrlEncode(resourceUri) + "\n" + expiry;
HMACSHA256 hmac = new HMACSHA256(Encoding.UTF8.GetBytes(key));
var signature = Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(stringToSign)));
var sasToken = string.Format(CultureInfo.InvariantCulture, "SharedAccessSignature sr={0}&sig={1}&se={2}&skn={3}",
HttpUtility.UrlEncode(resourceUri), HttpUtility.UrlEncode(signature), expiry, keyName);
return sasToken;
}
private static string GetExpiry(TimeSpan ttl)
{
TimeSpan expirySinceEpoch = DateTime.UtcNow - new DateTime(1970, 1, 1) + ttl;
return Convert.ToString((int)expirySinceEpoch.TotalSeconds);
}
2.使用c#代碼創建規則。
var serviceBusNamespace = "serviceBusNameSpace";
var topicPath = "topicPath";
var subscriptionName = "subscription name";
var ruleName = "testrule2"; // rule name
var sharedAccessKeyName = "xxxSharedAccessKey",
var key = "xxxxxxM2Xf8uTRcphtbY=";
var queueUrl = $"https://{serviceBusNamespace}.servicebus.windows.net/{topicPath}/subscriptions/{subscriptionName}/rules/{ruleName}";
var token = GetSasToken(queueUrl, sharedAccessKeyName,key ,TimeSpan.FromDays(1));
var body = @"<entry xmlns=""http://www.w3.org/2005/Atom"">
<content type =""application/xml"" >
<RuleDescription xmlns:i=""http://www.w3.org/2001/XMLSchema-instance"" xmlns=""http://schemas.microsoft.com/netservices/2010/10/servicebus/connect"">
<Filter i:type=""SqlFilter"">
<SqlExpression> type = 'REPLY' AND username = 'blabla@contoso.com' </SqlExpression>
</Filter>
</RuleDescription>
</content>
</entry>";
var length = body.Length.ToString();
var content = new StringContent(body, Encoding.UTF8, "application/xml");
var _httpClient = new HttpClient();
_httpClient.DefaultRequestHeaders.Add("Authorization", token);
_httpClient.DefaultRequestHeaders.Add("ContentType", "application/atom+xml");
_httpClient.DefaultRequestHeaders.Add("Accept", "application/atom+xml");
content.Headers.Add("Content-Length", length);
var requestResponse = _httpClient.PutAsync(queueUrl, content, new System.Threading.CancellationToken()).Result;
測試結果:
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