如何在 Suave 用户态中存储数据?

How do I store data in Suave userstate?

我有一个处理 OAuth 回调请求的 Web 部件。

从 API 获取访问令牌和用户 ID 后,我想将其存储在会话状态中。但是当读取后续请求的会话时,我只看到 "Suave.Auth" 键的值。

这是我的 OAuth 回调 Web 部件:

path "/oauth" >=> context (fun ctx ->
        let req = ctx.request
        match (req.queryParam "code", req.queryParam "error") with
        | Choice1Of2 code, _ ->
            let id = completeOAuth code
            Authentication.authenticated Session false
            >=> Writers.setUserData "user-id" id
            >=> Redirection.redirect "/view"
        | _, Choice1Of2 error -> RequestErrors.UNAUTHORIZED error)

如何确保 "user-id" 值在这个请求之后的其他请求的会话中?

Writers.setUserData 将数据存储在仅在请求期间存在的映射中。

要跨请求存储数据,您需要像这样使用 statefulForSession

let app = 
  statefulForSession >=> context (fun x ->
    match HttpContext.state x with
    | None ->
      // restarted server without keeping the key; set key manually?
      let msg = "Server Key, Cookie Serialiser reset, or Cookie Data Corrupt, "
      + "if you refresh the browser page, you'll have gotten a new cookie."
      OK msg
    | Some store ->
      match store.get "counter" with
      | Some y ->
        store.set "counter" (y + 1) >=> OK (sprintf "Hello %d time(s)" (y + 1))
      | None ->
        store.set "counter" 1 >=> OK "First time")