HttpClient post call 适用于邮递员,但不适用于 C#
Posted
技术标签:
【中文标题】HttpClient post call 适用于邮递员,但不适用于 C#【英文标题】:HttpClient post call works on postman but not C# 【发布时间】:2020-10-25 04:49:23 【问题描述】:正如标题所说,我的 post-call 可以在 postman 中工作,但不能在 c# 中工作。无论我尝试什么,它都无法在我的 c# 代码中运行。
这是我的代码:
internal async Task<(string, int)> GetJsonFileFromApiCall(string query)
var _client = new HttpClient();
var apiUrl = "https://wf19vv0nsf-dsn.algolia.net/1/indexes/*/queries?x-algolia-agent=Algolia%20for%20vanilla%20javascript%20(lite)%203.27.0%3Binstantsearch.js%202.10.2%3BMagento2%20integration%20(1.12.1)%3BJS%20Helper%202.26.0&x-algolia-application-id=WF19VV0NSF&x-algolia-api-key=MDdmNjA0Mjc1YzRkZjI4MWMwZmQyMDI4MDc5NDY4ZjlkYzJmOTVmMWY5Yjc3MGFkNDRiODA4YjU0MDVlM2Q1YnRhZ0ZpbHRlcnM9";
var load = new Requests = new IndexName = "magento2_tcg_productiondefault_products", Params = $"query=query&hitsPerPage=12&maxValuesPerFacet=8&page=0&highlightPreTag=__ais-highlight__&highlightPostTag=__%2Fais-highlight__&ruleContexts=%5B%22magento_filters%22%2C%22%22%5D&facets=%5B%22mtg_setcode%22%2C%22is_foil%22%2C%22mtg_rarity%22%2C%22sf_colours%22%2C%22sf_types%22%2C%22sf_legalities%22%2C%22price.AUD.default%22%2C%22stock_qty%22%2C%22mtg_cmc%22%5D&numericFilters=%5B%22visibility_search%3D1%22%5D" ;
var message = await _client.PostAsync(apiUrl, GetStringContent(load));
message.EnsureSuccessStatusCode();
var jToken = JObject.Parse(await message.Content.ReadAsStringAsync());
//temp return
return ("", 1);
private static StringContent GetStringContent<T>(T load)
var serializeObject = JsonConvert.SerializeObject(load, new JsonSerializerSettings ContractResolver = new CamelCasePropertyNamesContractResolver() );
return new StringContent(serializeObject, Encoding.UTF8, "application/json");
这是我的邮递员截图:
需要注意的一点是,post 请求在进行 post 调用时会接收表单数据。
【问题讨论】:
httpclient
代码在哪里? headers
设置在哪里? ***.com/help/minimal-reproducible-example
我已经添加了 httpclient 代码。我不太清楚标题设置是什么意思(对此有点新)
对于那些试图帮助你的人来说,“不起作用”也不是很具描述性。
目前的反应是什么?你有例外吗?你得到一个空的回应?我认为该错误是由 URI 的格式化方式引起的。您可能需要使用 HttpUtility.UrlEncode()
来更好地格式化您的 URI
有错误吗?
【参考方案1】:
我认为你应该更改这行代码
var load = new Requests = new IndexName = "magento2_tcg_productiondefault_products", Params = $"query=query&hitsPerPage=12&maxValuesPerFacet=8&page=0&highlightPreTag=__ais-highlight__&highlightPostTag=__%2Fais-highlight__&ruleContexts=%5B%22magento_filters%22%2C%22%22%5D&facets=%5B%22mtg_setcode%22%2C%22is_foil%22%2C%22mtg_rarity%22%2C%22sf_colours%22%2C%22sf_types%22%2C%22sf_legalities%22%2C%22price.AUD.default%22%2C%22stock_qty%22%2C%22mtg_cmc%22%5D&numericFilters=%5B%22visibility_search%3D1%22%5D" ;
到这里:
var load = new Requests = new[] new IndexName = "magento2_tcg_productiondefault_products", Params = $"query=query&hitsPerPage=12&maxValuesPerFacet=8&page=0&highlightPreTag=__ais-highlight__&highlightPostTag=__%2Fais-highlight__&ruleContexts=%5B%22magento_filters%22%2C%22%22%5D&facets=%5B%22mtg_setcode%22%2C%22is_foil%22%2C%22mtg_rarity%22%2C%22sf_colours%22%2C%22sf_types%22%2C%22sf_legalities%22%2C%22price.AUD.default%22%2C%22stock_qty%22%2C%22mtg_cmc%22%5D&numericFilters=%5B%22visibility_search%3D1%22%5D" ;
【讨论】:
抱歉回复晚了,这对您有帮助!【参考方案2】:在您的邮递员请求中,您的 post-body 的 requests
属性是一个数组
"requests": [...]
而在您的 C# 代码中,它是一个对象
var load = new
Requests = new ...
因此服务器可能无法从您的请求中获取所需的数据。将requests
属性创建为List<object>
或object[]
,以便将其序列化为数组
var load = new
Requests = new List<object>new ...
【讨论】:
感谢您的解释,这很有帮助!【参考方案3】:请参阅下面代码中的注释也包括错误..
internal async Task<(string, int)> GetJsonFileFromApiCall(string query)
var _client = new HttpClient();
var apiUrl = "https://wf19vv0nsf-dsn.algolia.net/1/indexes/*/queries?x-algolia-agent=Algolia%20for%20vanilla%20JavaScript%20(lite)%203.27.0%3Binstantsearch.js%202.10.2%3BMagento2%20integration%20(1.12.1)%3BJS%20Helper%202.26.0&x-algolia-application-id=WF19VV0NSF&x-algolia-api-key=MDdmNjA0Mjc1YzRkZjI4MWMwZmQyMDI4MDc5NDY4ZjlkYzJmOTVmMWY5Yjc3MGFkNDRiODA4YjU0MDVlM2Q1YnRhZ0ZpbHRlcnM9";
var load = new
Requests = new
IndexName = "magento2_tcg_productiondefault_products",
Params = $"query=query&hitsPerPage=12&maxValuesPerFacet=8&page=0&highlightPreTag=__ais-highlight__&highlightPostTag=__
%2Fais-highlight__&ruleContexts=%5B%22magento_filters%22%2C%22%22%5D&facets=%5B%22mtg_setcode%22%2C%22is_foil%22%2C%22mtg_
rarity%22%2C%22sf_colours%22%2C%22sf_types%22%2C%22sf_legalities%22%2C%22price.AUD
.default%22%2C%22stock_qty%22%2C%22mtg_cmc%22%5D&numericFilters=%5B%22visibility_search%3D1%22%5D"
;
//insepct this..... im sure this is probably not what you think it is.
//worth double checking
var resultS = GetStringContent(load); //inspect the result value.
var message = await _client.PostAsync(apiUrl, resultS);
message.EnsureSuccessStatusCode();
var jToken = JObject.Parse(await message.Content.ReadAsStringAsync());
//temp return
return ("", 1);
private static StringContent GetStringContent<T>(T load)
var serializeObject = JsonConvert.SerializeObject(load, new JsonSerializerSettings ContractResolver = new CamelCasePropertyNamesContractResolver() );
return new StringContent(serializeObject, Encoding.UTF8, "application/json");
【讨论】:
以上是关于HttpClient post call 适用于邮递员,但不适用于 C#的主要内容,如果未能解决你的问题,请参考以下文章