polly

上周热点回顾（12.31-1.6）

由 我是研究僧i 提交于 2021-02-13 19:00:53
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How I can change configuration of HttpMessageHandler from Polly retry?

由 十年热恋 提交于 2021-02-11 12:40:49
问题 I have the following issue. I have a proxy set. If a request via proxy very slow or has crashed I would like to try again without proxy. For setting proxy I have the following code in the Startup.cs file: services.AddHttpClient<ICheckPackagesService, CheckPackagesService>(x => { x.Timeout = TimeSpan.FromSeconds(10); }).ConfigurePrimaryHttpMessageHandler(() => new SocketsHttpHandler { Proxy = new WebProxy(IpService.GetIp()) }); But I can't imagine what I have to do for sending new one request

How I can change configuration of HttpMessageHandler from Polly retry?

由 一个人想着一个人 提交于 2021-02-11 12:40:10
问题 I have the following issue. I have a proxy set. If a request via proxy very slow or has crashed I would like to try again without proxy. For setting proxy I have the following code in the Startup.cs file: services.AddHttpClient<ICheckPackagesService, CheckPackagesService>(x => { x.Timeout = TimeSpan.FromSeconds(10); }).ConfigurePrimaryHttpMessageHandler(() => new SocketsHttpHandler { Proxy = new WebProxy(IpService.GetIp()) }); But I can't imagine what I have to do for sending new one request

Retry HTTP request from .NET with different proxy server

由 最后都变了- 提交于 2021-01-29 13:25:38
问题 I can issue HTTP requests through a proxy in a .NET app. There are a number of proxy servers I can use and sometimes one or more will go down. How can I have my app retry the HTTP request using a different proxy? I am open to any suggestion and have heard good things about Polly for adding resiliency. 回答1: If you were to use Polly, maybe something like this: public void CallGoogle() { var proxyIndex = 0; var proxies = new List<IWebProxy> { new WebProxy("proxy1.test.com"), new WebProxy("proxy2

Polly CircuitBreakerAsync is not working as I expect

由 早过忘川 提交于 2021-01-27 21:17:17
问题 I'm just trying out the Polly CircuitBreakerAsync and it's not working as I expect. What am I doing wrong here? I expect the code below to complete and say the circuit is still closed. using Polly; using System; using System.Threading.Tasks; public class Program { public static void Main(string[] args) { MainAsync(args).GetAwaiter().GetResult(); } static async Task MainAsync(string[] args) { var circuitBreaker = Policy .Handle<Exception>() .CircuitBreakerAsync( 3, //

Add delay to parallel API call

由 ↘锁芯ラ 提交于 2021-01-27 07:35:04
问题 I'm using Polly to make parallel API calls. The server however can't process more than 25 calls per second and so I'm wondering if there is a way to add a 1s delay after each batch of 25 calls? var policy = Policy .Handle<HttpRequestException>() .RetryAsync(3); foreach (var mediaItem in uploadedMedia) { var mediaRequest = new HttpRequestMessage { *** } async Task<string> func() { var response = await client.SendAsync(mediaRequest); return await response.Content.ReadAsStringAsync(); } tasks

Add delay to parallel API call

由 六眼飞鱼酱① 提交于 2021-01-27 07:33:21
问题 I'm using Polly to make parallel API calls. The server however can't process more than 25 calls per second and so I'm wondering if there is a way to add a 1s delay after each batch of 25 calls? var policy = Policy .Handle<HttpRequestException>() .RetryAsync(3); foreach (var mediaItem in uploadedMedia) { var mediaRequest = new HttpRequestMessage { *** } async Task<string> func() { var response = await client.SendAsync(mediaRequest); return await response.Content.ReadAsStringAsync(); } tasks

Add delay to parallel API call

由 烂漫一生 提交于 2021-01-27 07:28:41
问题 I'm using Polly to make parallel API calls. The server however can't process more than 25 calls per second and so I'm wondering if there is a way to add a 1s delay after each batch of 25 calls? var policy = Policy .Handle<HttpRequestException>() .RetryAsync(3); foreach (var mediaItem in uploadedMedia) { var mediaRequest = new HttpRequestMessage { *** } async Task<string> func() { var response = await client.SendAsync(mediaRequest); return await response.Content.ReadAsStringAsync(); } tasks

二叉树、前序遍历、中序遍历、后序遍历

由 早过忘川 提交于 2021-01-13 21:01:53
一、树 在谈二叉树前先谈下树和图的概念 树：不包含回路的连通无向图（树是一种简单的非线性结构） 树有着 不包含回路 这个特点，所以树就被赋予了很多特性 1、一棵树中任意两个结点有且仅有唯一的一条路径连通 2、一棵树如果有n个结点，那它一定恰好有n-1条边 3、在一棵树中加一条边将会构成一个回路 4、树中有且仅有一个没有前驱的结点称为 根结点 在对树进行讨论的时候将树中的每个点称为结点， 根结点： 没有父结点的结点 叶结点： 没有子结点的结点 内部结点： 一个结点既不是根结点也不是叶结点 每个结点还有深度，比如上图左边的树的4号结点深度是3（深度是指从根结点到这个结点的层数，根结点为第一层） 二、二叉树 基本概念： 二叉树是一种非线性结构，二叉树是递归定义的，其结点有左右子树之分 二叉树的存储结构： 二叉树通常采用链式存储结构，存储结点由数据域和指针域（指针域：左指针域和右指针域）组成，二叉树的链式存储结构也称为二叉链表，对满二叉树和完全二叉树可按层次进行顺序存储 特点： 1、每个结点最多有两颗子树 2、左子树和右子树是有顺序的，次序不能颠倒 3、即使某结点只有一个子树，也要区分左右子树 4、二叉树可为空，空的二叉树没有结点，非空二叉树有且仅有一个根节点 二叉树中有两种特殊的二叉树：满二叉树、完全二叉树 满二叉树： 二叉树中每个内部结点都有存在左子树和右子树

Polly Circuit Breaker handled and unhandled exceptions

由 為{幸葍}努か 提交于 2021-01-07 02:48:32
问题 I want to use Polly to implement a Circuit Breaker pattern. In the docs, there is a description of the Half Open state, and there it says: If a handled exception is received, that exception is rethrown, and the circuit transitions immediately back to open, and remains open again for the configured timespan. If an unhandled exception is received, the circuit remains in half-open. I'm not sure I understand the difference here between handled and unhandled exception. We are describing a case
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