[英]Can I filter an Azure ServiceBusService using node.js SDK?
我在隊列中有數百萬條消息,前一千萬條左右無關緊要。 每條消息都有一個連續的 ActionId,因此理想情況下,任何< 10000000
我都可以忽略或更好地從隊列中刪除。 到目前為止我所擁有的:
let azure = require("azure");
function processMessage(sb, message) {
// Deserialize the JSON body into an object representing the ActionRecorded event
var actionRecorded = JSON.parse(message.body);
console.log(`processing id: ${actionRecorded.ActionId} from ${actionRecorded.ActionTaken.ActionTakenDate}`);
if (actionRecorded.ActionId < 10000000) {
// When done, delete the message from the queue
console.log(`Deleting message: ${message.brokerProperties.MessageId} with ActionId: ${actionRecorded.ActionId}`);
sb.deleteMessage(message, function(deleteError, response) {
if (deleteError) {
console.log("Error deleting message: " + message.brokerProperties.MessageId);
}
});
}
// immediately check for another message
checkForMessages(sb);
}
function checkForMessages(sb) {
// Checking for messages
sb.receiveQueueMessage("my-queue-name", { isPeekLock: true }, function(receiveError, message) {
if (receiveError && receiveError === "No messages to receive") {
console.log("No messages left in queue");
return;
} else if (receiveError) {
console.log("Receive error: " + receiveError);
} else {
processMessage(sb, message);
}
});
}
let connectionString = "Endpoint=sb://<myhub>.servicebus.windows.net/;SharedAccessKeyName=KEYNAME;SharedAccessKey=[mykey]"
let serviceBusService = azure.createServiceBusService(connectionString);
checkForMessages(serviceBusService);
我試過查看withFilter的文檔,但似乎不適用於隊列。
除了上面提到的操作之外,我無權創建或修改底層隊列,因為隊列是由客戶端提供的。
我可以嗎
過濾我從隊列中獲得的結果
如您所見,過濾器作為一項功能僅適用於主題和訂閱。
以某種方式加速隊列處理
如果您要使用@azure/service-bus
包,它是與 Service Bus 一起工作的更新、更快的庫,您可以在 ReceiveAndDelete 模式下接收消息,直到您到達帶有 ActionId 9999999 的消息,關閉該接收器,然后創建一個PeekLock 模式下的新接收器。 有關這些接收模式的更多信息,請參閱https://docs.microsoft.com/en-us/azure/service-bus-messaging/message-transfers-locks-settlement#settling-receive-operations
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.