如何使用Akka HTTP表示表单数据请求？

本文介绍了如何使用Akka HTTP表示表单数据请求？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我想为 Facebook API创建一个表单数据http请求使用Akka HTTP。在curl中，请求示例看起来像：

I want to create a form-data http request to Facebook API using Akka HTTP. In curl, the request example looks like:

curl \ -X POST \ "graph-video.facebook/v2.3/1533641336884006/videos" \ -F "access_token=XXXXXXX" \ -F "upload_phase=transfer" \ -F "start_offset=0" \ -F "upload_session_id=1564747013773438" \ -F "video_file_chunk=@chunk1.mp4"

所以我为请求有效载荷表示创建了以下模型：

So I created a following model for a request payload representation:

case class FBSingleChunkUpload(accessToken: String, sessionId: String, from: Long, to: Long, file: File) //file is always ~1Mb

然后我要使用：

Http().cachedHostConnectionPoolHttps[String]("graph-video.facebook")

但是我不知道如何将 FBSingleChunkUpload 转换为正确的 HttpRequest ： （

But I don't know how to convert FBSingleChunkUpload to the correct HttpRequest :(

能否给我一个提示，如何代表使用Akka HTTP这样的请求？

Can you give me a hint, how to represent a such type of requests using Akka HTTP?

推荐答案

有一个 FormData 实体类型

val fBSingleChunkUpload = ??? HttpRequest(method = HttpMethods.POST, entity = FormData(("accessToken", fBSingleChunkUpload.accessToken), ...).toEntity)

此外，您还可以检查文件是否与 Multipart.FormData

Additionally for the file you could check if it works with Multipart.FormData

val fileFormPart = Multipart.FormData .BodyPart("name", HttpEntity(MediaTypes.`application/octet-stream`, file.length(), FileIO.fromPath(file.toPath))) val otherPart = Multipart.FormData.BodyPart.Strict("accessToken", "the token") val entity = Multipart.FormData(otherPart, fileFormPart).toEntity