Azure API 請求中的偵錯權限

Azure API 請求中的偵錯權限涉及識別和解決與身份驗證、授權和存取控制相關的問題。

When making API requests to Azure services, ensuring that the appropriate permissions are in place is critical. Without the necessary permissions, requests will fail, and troubleshooting the issue can be challenging. In this article, we will explore a structured approach to debugging permissions in Azure API requests, covering key aspects such as API permissions, Azure Role-Based Access Control (RBAC), access tokens, API request responses, and authentication flow.

向 Azure 服務發出 API 要求時，確保擁有適當的權限至關重要。如果沒有必要的權限，請求將會失敗，解決問題可能會很困難。在本文中，我們將探索一種偵錯 Azure API 請求中的權限的結構化方法，涵蓋 API 權限、Azure 基於角色的存取控制 (RBAC)、存取權杖、API 請求回應和驗證流程等關鍵方面。

1. Check API Permissions in Azure Portal

1.在Azure Portal中檢查API權限

The first step in debugging permissions is to ensure that the API you are trying to access has the required permissions configured. To do this:

偵錯權限的第一步是確保您嘗試存取的 API 已配置所需的權限。為此：

a) Navigate to the Azure portal and select the API service you want to use. For example, if you are making requests to the Azure Storage API, search for "Storage."

a) 導覽至 Azure 入口網站並選擇要使用的 API 服務。例如，如果您要向 Azure 儲存體 API 發出要求，請搜尋「儲存」。

b) In the left-hand menu, click on "API permissions."

b) 在左側選單中，按一下「API 權限」。

c) Here, you will see a list of all the permissions that are configured for the API. Ensure that the permission you need is present in the list. If it is not, you will need to add it. To do this, click on the "+ Add permission" button and select the permission you want to add.

c) 在這裡，您將看到為 API 配置的所有權限的清單。確保您需要的權限存在於清單中。如果沒有，您將需要添加它。為此，請點擊“+ 新增權限”按鈕並選擇您要新增的權限。

2. Check the Azure Role-Based Access Control (RBAC)

2.檢查Azure基於角色的存取控制（RBAC）

Once you have verified the API permissions, the next step is to ensure that the service principal or user has the required roles assigned to access resources. To do this:

驗證 API 權限後，下一步是確保服務主體或使用者俱有分配存取資源所需的角色。為此：

a) Navigate to the Azure portal and select the "Access control (IAM)" blade for the resource you want to access. For example, if you are making requests to the Azure Storage service, search for "Storage account" and select the storage account you want to use.

a) 導覽至 Azure 門戶，然後選擇要存取的資源的「存取控制 (IAM)」側邊欄標籤。例如，如果您要向 Azure 儲存體服務發出要求，請搜尋「儲存帳戶」並選擇要使用的儲存帳戶。

b) In the "Access control (IAM)" blade, you will see a list of all the users, service principals, and roles that have been assigned to the resource. Ensure that the service principal or user that is making the API requests has the required role assigned. If the role is not assigned, you will need to add it. To do this, click on the "Add" button, select the "Role" you want to assign, and then select the "service principal" or "user" you want to assign the role to.

b) 在「存取控制 (IAM)」側邊欄標籤中，您將看到已指派給資源的所有使用者、服務主體和角色的清單。確保發出 API 請求的服務主體或使用者已指派所需的角色。如果未指派該角色，您需要新增它。為此，請按一下“新增”按鈕，選擇要指派的“角色”，然後選擇要指派角色的“服務主體”或“使用者”。

3. Verify the API Request Token

3. 驗證API請求Token

When making API requests, you must include an access token in the request header. This token identifies the service principal or user that is making the request and specifies the permissions that the service principal or user has. To verify the API request token:

發出 API 請求時，您必須在請求標頭中包含存取權杖。此令牌標識發出請求的服務主體或用戶，並指定服務主體或使用者擁有的權限。驗證 API 請求令牌：

a) Ensure that the access token is valid and has not expired.

a) 確保存取令牌有效且未過期。

b) Ensure that the access token has the correct scopes and claims. The scopes define the level of access that the service principal or user has to the API, and the claims define specific properties about the service principal or user. To verify the scopes and claims, you can use a tool like jwt.io to decode the access token and view the payload.

b) 確保存取令牌具有正確的範圍和聲明。範圍定義服務主體或使用者對 API 的存取級別，聲明定義有關服務主體或使用者的特定屬性。若要驗證範圍和聲明，您可以使用 jwt.io 等工具來解碼存取令牌並查看有效負載。

4. Check the API Request Response

4. 檢查API請求回應

If the API request fails, the response message will often provide details on why the request failed. To check the API request response:

如果 API 請求失敗，回應訊息通常會提供有關請求失敗原因的詳細資訊。檢查 API 請求回應：

a) Look for specific error messages in the response. These messages will usually indicate the reason for the failure. For example, if the service principal or user does not have the necessary permissions to perform the requested operation, the response message will typically include an error code like "AuthorizationFailed."

a) 在回應中尋找特定的錯誤訊息。這些訊息通常會指出失敗的原因。例如，如果服務主體或使用者沒有執行要求的操作所需的權限，則回應訊息通常會包含錯誤代碼，例如「AuthorizationFailed」。

b) If the error message does not provide enough information, you can enable detailed logging for your Azure resources to capture more verbose logs. To do this, follow the steps in the next section.

b) 如果錯誤訊息沒有提供足夠的信息，您可以為 Azure 資源啟用詳細日誌記錄以擷取更詳細的日誌。為此，請按照下一節中的步驟操作。

5. Verify Authentication Flow

5. 驗證身分驗證流程

If you are still having trouble debugging the permissions, you should ensure that the authentication process is properly set up. To do this:

如果偵錯權限時仍遇到問題，則應確保正確設定身份驗證過程。為此：

a) Review the documentation for the Azure service you are trying to access to understand the supported authentication methods and any specific requirements.

a) 檢視您嘗試存取的 Azure 服務的文檔，以了解支援的身份驗證方法和任何特定要求。

b) Use a tool like Fiddler to capture and inspect the network traffic between your application and the Azure service. This can help you identify any issues with the authentication flow, such as missing headers or incorrect parameters.

b) 使用 Fiddler 等工具擷取並檢查應用程式與 Azure 服務之間的網路流量。這可以幫助您識別身份驗證流程中的任何問題，例如缺少標頭或不正確的參數。

6. Review API Request Headers

6. 檢查 API 請求標頭

Ensure that the API request has the correct authorization header. The authorization header typically contains the access token or other credentials used to authenticate the request. To review the API request headers:

確保 API 請求具有正確的授權標頭。授權標頭通常包含存取權杖或用於驗證請求的其他憑證。若要查看 API 請求標頭：

a) Use a tool like Fiddler to capture and inspect the network traffic between your application and the Azure service.

a) 使用 Fiddler 等工具擷取並檢查應用程式與 Azure 服務之間的網路流量。

b) Locate the request that failed and expand the "Headers" section to view the request headers.

b) 找到失敗的請求並展開「標頭」部分以查看請求標頭。

c) Ensure that the authorization header is present and contains the correct credentials.

c) 確保授權標頭存在並包含正確的憑證。

7. Enable Detailed Logging

7.啟用詳細日誌記錄

If you are unable to identify the issue by following the steps above, you can enable detailed logging for your Azure resources to capture more verbose logs. This can help you troubleshoot the issue further. To enable detailed logging:

如果您按照上述步驟無法識別問題，您可以為 Azure 資源啟用詳細日誌記錄以擷取更詳細的日誌。這可以幫助您進一步解決問題。若要啟用詳細日誌記錄：