https使用httpclient呼叫

发布于 2025-02-04 05:04:01 字数 395 浏览 2 评论 0原文

我收到了一个400不好的请求，试图使用httpclient调用API，但我不确定我缺少什么。

我尝试了浏览器和Postman的终点，但没有任何问题，但是当我尝试使用以下代码时，我会收到400个不好的请求：

using (HttpClient client = new HttpClient())
{
    var result = client.GetAsync("https://api.exchange.coinbase.com/products/ETH-USD/candles?granularity=300&start=2022-03-22&end=2022-03-23").Result;
}

有人可以告诉我，我缺少什么来让这个工作来工作？

原文

I am getting a 400 bad request trying to call an API using HttpClient and I am not exactly sure what I am missing.

I have tried the endpoint from my browser and from Postman and have not had any issues, but when I try to use the following code I get a 400 bad request:

using (HttpClient client = new HttpClient())
{
    var result = client.GetAsync("https://api.exchange.coinbase.com/products/ETH-USD/candles?granularity=300&start=2022-03-22&end=2022-03-23").Result;
}

Would anyone be able to tell me what I am missing to get this to work?

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翻身的咸鱼 2025-02-11 05:04:01

原始代码中的请求返回{“ message”：“需要用户代理标头。”}。如果是这种情况，请添加用户代理标头来解决问题

using System;
using System.Net.Http;
using System.Net.Http.Headers;

using (HttpClient client = new HttpClient())
{   
    client.DefaultRequestHeaders.UserAgent.Add(new ProductInfoHeaderValue(".NET", "6.0"));
    var result = await client.GetAsync("https://api.exchange.coinbase.com/products/ETH-USD/candles?granularity=300&start=2022-03-22&end=2022-03-23");   
    Console.WriteLine(await result.Content.ReadAsStringAsync());
}

The request from the original code returns {"message":"User-Agent header is required."}. If it is the case, add user-agent header to fix the problem

using System;
using System.Net.Http;
using System.Net.Http.Headers;

using (HttpClient client = new HttpClient())
{   
    client.DefaultRequestHeaders.UserAgent.Add(new ProductInfoHeaderValue(".NET", "6.0"));
    var result = await client.GetAsync("https://api.exchange.coinbase.com/products/ETH-USD/candles?granularity=300&start=2022-03-22&end=2022-03-23");   
    Console.WriteLine(await result.Content.ReadAsStringAsync());
}

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