Web 如何从F#代码进行外部POST API调用

我想从F#调用外部POST API，F#具有如下多部分表单请求体，那么如何在F#中执行呢

谢谢你阅读这个问题

我尝试了下面的代码，但对我无效

Http.Request
  ( "http://endpoint/for/multipart/data", 
  body = Multipart(
    boundary = "define a custom boundary here", // this is used to separate the items you're streaming
    parts = [
      MultipartItem("formFieldName", "file",IFormFile.OpenReadStream())
    ]


))

---

为此，我将使用和HTTp客户端，在fsharp中，您可以使用各种东西，如或和HTTp客户端包，我建议：

只需创建一个控制台应用程序并添加这个nuget包

 dotnet new console -lang f# -o http-rest-client
 cd http-rest-client
 dotnet add package Http.fs
 dotnet add package Hopac

然后将Program.fs中的代码替换为：

//了解更多关于F#at的信息

然后，您可以运行您的项目：

dotnet run

{
  "args": {},
  "data": "",
  "files": {
    "file": "calimero calimero calimero calimero\n"
  },
  "form": {},
  "headers": {
    "Accept": "application/json",
    "Content-Length": "241",
    "Content-Type": "multipart/form-data; boundary=\"BPj'o/kJ+CaKDQUuOnIaoLq/diChFH\"",
    "Host": "httpbin.org"
  },
  "json": null,
  "origin": "83.53.248.254, 83.53.248.254",
  "url": "https://httpbin.org/post"
}

---

Http.fs包中有许多发送表单的示例，该库设法添加

多部分表单数据所需的heraders

是源代码。如果有人对某个问题感到好奇，那么描述该问题通常是有帮助的。否则，试图回答问题的人必须在黑暗中猜测你的问题是什么。“对我不起作用”是不够的信息。错误消息是什么？我想执行POST调用以将图像保存到blob，但不想等待结果，所以如何从F#code执行POST调用。我在这里尝试了fsharp.github.io/fsharp.Data/library/Http.html，但没有成功。大多数方法都是等待完成post调用的执行以及它的结果，但我不关心post调用的响应

open System.IO
open System.Text
open Hopac
open HttpFs.Client

let multipartRequest =
    Request.createUrl Post "http://httpbin.org/post"
    |> Request.setHeader (Accept "application/json")
    |> Request.body (BodyForm [
        FormFile ("file", ("testfile.txt",
                           ContentType.create("text", "plain"),
                           Binary (File.ReadAllBytes ("./testfile.txt"))
                           ))])
    |> Request.responseAsString
    |> run



[<EntryPoint>]
let main argv =
    printfn "%s" multipartRequest
    0 

➜ cat testfile.txt
calimero calimero calimero calimero

dotnet run

{
  "args": {},
  "data": "",
  "files": {
    "file": "calimero calimero calimero calimero\n"
  },
  "form": {},
  "headers": {
    "Accept": "application/json",
    "Content-Length": "241",
    "Content-Type": "multipart/form-data; boundary=\"BPj'o/kJ+CaKDQUuOnIaoLq/diChFH\"",
    "Host": "httpbin.org"
  },
  "json": null,
  "origin": "83.53.248.254, 83.53.248.254",
  "url": "https://httpbin.org/post"
}