c# - Azure函数从站点获取json并将其传递给

Question

我正在尝试将数据从链接 A 传递到 azure 函数，该函数只需要从链接 A 获取数据并自行返回该数据。

所以我从 A 获取 Json 数据，该数据由 API 提供。现在，我有一个 azure 函数，我需要从 A 获取数据并返回 req.CreateResponse(HttpStatusCode.OK)，其中包含来自 A< 的数据。这需要在 B 上可见(完全相同)，而 B 这是我的 Azure 网址...

如何做到这一点？

我尝试执行await req.Content.ReadAsStringAsync()，但这没有任何作用..

所以，我的函数应用程序现在看起来像这样:

[FunctionName("CreateRadioAPI")]
        public static async Task<HttpResponseMessage> CreateRadioAPIAsync([HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = "v1/radio/stats/info")]HttpRequestMessage req, TraceWriter log)
        {
            try
            {
                //dynamic body = await req.Content.ReadAsStringAsync();

                return req.CreateResponse(HttpStatusCode.OK);
            }
            catch (Exception ex)
            {
                log.Error("An error occured: ", ex);
                return req.CreateResponse(HttpStatusCode.InternalServerError);
            }
        }

在这里，我想从另一个链接返回数据，如下所示:

{
    "data": {
        "listeners": 65,
        "song": "Ofenbach - Katchi (Ofenbach vs. Nick Waterhouse)",
        "live_dj": ".-RRxd-.",
        "mini_rooster": [],
        "song_history": [
            {
                "playedat": 1512154754,
                "title": "Ofenbach - Katchi (Ofenbach vs. Nick Waterhouse)",
                "metadata": {
                    "tit2": "Ofenbach - Katchi (Ofenbach vs. Nick Waterhouse)"
                }
            },
            {
                "playedat": 1512154548,
                "title": "Cam'ron - Hey Ma",
                "metadata": {
                    "tit2": "Cam'ron - Hey Ma"
                }
            },
            {
                "playedat": 1512154335,
                "title": "San Holo - I Still See Your Face",
                "metadata": {
                    "tit2": "San Holo - I Still See Your Face"
                }
            },
            {
                "playedat": 1512151761,
                "title": "Sunnieday Mixtape Dyna (5)",
                "metadata": {
                    "tit2": "Sunnieday Mixtape Dyna (5)"
                }
            },
            {
                "playedat": 1512151162,
                "title": "Merk & Kremont - Sad Story (Out Of Luck)",
                "metadata": {
                    "tit2": "Merk & Kremont - Sad Story (Out Of Luck)"
                }
            },
            {
                "playedat": 1512150866,
                "title": "Martin Garrix - So Far Away",
                "metadata": {
                    "tit2": "Martin Garrix - So Far Away"
                }
            },
            {
                "playedat": 1512150701,
                "title": "John de Sohn - Hum With Me",
                "metadata": {
                    "tit2": "John de Sohn - Hum With Me"
                }
            },
            {
                "playedat": 1512150345,
                "title": "Zak Abel - All I Ever Do (Is Say Goodbye)",
                "metadata": {
                    "tit2": "Zak Abel - All I Ever Do (Is Say Goodbye)"
                }
            },
            {
                "playedat": 1512150139,
                "title": "Dua Lipa - New rules",
                "metadata": {
                    "tit2": "Dua Lipa - New rules"
                }
            },
            {
                "playedat": 1512149995,
                "title": "Garmiani - Fogo",
                "metadata": {
                    "tit2": "Garmiani - Fogo"
                }
            }
        ]
    }
}

Answer 1

我想你想要这样的东西:

private static HttpClient client = new HttpClient();

[FunctionName("CreateRadioAPI")]
public static async Task<HttpResponseMessage> CreateRadioAPIAsync([HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = "v1/radio/stats/info")]HttpRequestMessage req, TraceWriter log)
{
    try
    {
        var responseFromA = await client.GetAsync("https://yoursite.com/a.json");
        var body = await responseFromA.Content.ReadAsStringAsync();
        var response = req.CreateResponse(HttpStatusCode.OK);
        response.Content = new StringContent(body, Encoding.UTF8, "application/json");
        return response;
    }
    catch (Exception ex)
    {
        log.Error("An error occured: ", ex);
        return req.CreateResponse(HttpStatusCode.InternalServerError);
    }
}