我们如何测试使用天蓝色持久功能的rest api端点？

问题描述

我们有一个使用Azure函数获取结果的终点。有时我们几乎立即获得结果，有时我们在10或20 s之后获得结果。

我想知道是否有更好的方法可以使用邮递员来测试这些端点，或者您是否使用另一种工具来测试依赖于持久功能的端点。此解决方案行之有效，但始终不可靠。

statusCode = responseCode.code;
var result = JSON.parse(responseBody);

var maxnumberOfTries = 24;
var sleepBetweenTries = 5000;

if (!pm.environment.get("collection_tries")) {
    pm.environment.set("collection_tries",1);
}

console.log(result);
tests["Status code is 200"] = statusCode == environment["status_OK"];

if (result.abc.length == 0) {
    if (pm.environment.get("collection_tries") <= maxnumberOfTries && statusCode == 200) {
        var tries = parseInt(pm.environment.get("collection_tries"),10);
        pm.environment.set("collection_tries",tries + 1);
        setTimeout(function () { },sleepBetweenTries);
        postman.setNextRequest(pm.info.requestId);
    }
    else {
        pm.environment.unset("collection_tries");
        console.log("Exceeded all attempts to check ABC");
        tests["ABC exist"] = false;
    }
} else {
    pm.environment.unset("collection_tries");
    tests["ABC exist"] = true;
    
    var abcid = result._id;

解决方法

当您在http触发的函数中开始编排时，内置的持久函数http响应具有以下输出：

HTTP/1.1 202 Accepted
Connection: close
Date: Wed,26 Aug 2020 07:43:55 GMT
Content-Type: application/json; charset=utf-8
Server: Kestrel
Content-Length: 958
Location: http://localhost:7071/runtime/webhooks/durabletask/instances/a30d3b1b203e4135b302204b99c989b3?taskHub=DurableDemo&connection=Storage&code=4X/ekkGia/Ng07GHcwLz9CKLClggXjdKKZQ0hQC6pifxteBWvA19jg==
Retry-After: 10

{
  "id": "a30d3b1b203e4135b302204b99c989b3","statusQueryGetUri": "http://localhost:7071/runtime/webhooks/durabletask/instances/a30d3b1b203e4135b302204b99c989b3?taskHub=DurableDemo&connection=Storage&code=4X/ekkGia/Ng07GHcwLz9CKLClggXjdKKZQ0hQC6pifxteBWvA19jg==","sendEventPostUri": "http://localhost:7071/runtime/webhooks/durabletask/instances/a30d3b1b203e4135b302204b99c989b3/raiseEvent/{eventName}?taskHub=DurableDemo&connection=Storage&code=4X/ekkGia/Ng07GHcwLz9CKLClggXjdKKZQ0hQC6pifxteBWvA19jg==","terminatePostUri": "http://localhost:7071/runtime/webhooks/durabletask/instances/a30d3b1b203e4135b302204b99c989b3/terminate?reason={text}&taskHub=DurableDemo&connection=Storage&code=4X/ekkGia/Ng07GHcwLz9CKLClggXjdKKZQ0hQC6pifxteBWvA19jg==","purgeHistoryDeleteUri": "http://localhost:7071/runtime/webhooks/durabletask/instances/a30d3b1b203e4135b302204b99c989b3?taskHub=DurableDemo&connection=Storage&code=4X/ekkGia/Ng07GHcwLz9CKLClggXjdKKZQ0hQC6pifxteBWvA19jg=="
}

然后，您轮询 Location 标头中提到的端点（或 statusQueryGetUri 属性的值），并应用重试中提到的等待时间-后标题。获得实际结果200响应后，请检查 runtimeStatus 属性（如果该属性标记为 Completed （或 Failed 等））。 >

此解决方案与您现有的解决方案没有太大不同。但是您正在使用DF的更多内置功能。

api api azure-durable-functions postman postman-collection-runner