如何使用VBA调用Microsoft Graph API？

Question

问题

是否可以使用 VBA 代码调用 Microsoft Graph API？

如果是，如何处理O365授权？我看到很多主题都说要在 Microsoft Azure 中创建应用程序来获取令牌，但令我惊讶的是我必须为了简单的本地使用而这样做。

我尝试过的

发现 Microsoft Graph 后，我在 Graph Explorer 中尝试了此 API https://graph.microsoft.com/v1.0/planner/tasks

我能够在计划器中创建任务！

因此，在我看来，可以从直接在 Outlook 中执行的 VBA 代码调用此 API。

我在 Outlook 中创建了这个宏：

Sub TaskPlannerCreation()

    Dim PlannerService As New MSXML2.XMLHTTP60
    Dim sData As Variant

    sData = " { ""  ""planId"": ""K9Zv2QHm1U-GSAhd-PTGZfdFeOn"",""bucketId"": ""b6NVNiEIQkGZeBBzn7kWqJvAGvvs"",""title"": ""Outlook task"" } "

    With PlannerService
        .Open "POST", "https://graph.microsoft.com/v1.0/planner/tasks", False
        .setRequestHeader "Content-Type", "application/json"
        .setRequestHeader "Accept", "application/json"
        .setRequestHeader "User-Agent", "xx"
        .Send (sData)

我有一个授权错误

错误代码 401

2020 年 3 月 12 日更新： 找到在调用 Graph Explorer 时获取 Graph Api 令牌分析 URL 的解决方案（对我来说非常适合）：

Function GetToken()

    Dim xml As New MSXML2.XMLHTTP60
    Dim doc As MSHTML.HTMLDocument
    Dim urltoken As String

'copy paste the URL you see when calling Microsoft Graph Explorer and add prompt + domain_hint parameters
    urltoken = "https://login.microsoftonline.com/common/oauth2/v2.0/authorize?response_mode=form_post&nonce=graph_explorer&mkt=fr-FR&client_id={clientid}&response_type=token&scope=openid profile User.ReadWrite User.ReadBasic.All Sites.ReadWrite.All Contacts.ReadWrite People.Read Notes.ReadWrite.All Tasks.ReadWrite Mail.ReadWrite Files.ReadWrite.All Calendars.ReadWrite&prompt=none&domain_hint=organizations"

    xml.Open "GET", urltoken, False

    xml.Send

    If xml.readyState = 4 And xml.Status = 200 Then
        Set doc = New MSHTML.HTMLDocument
        doc.Body.innerHTML = xml.responseText

        GetToken = doc.getElementsByName("access_token")(0).Value

        sSuccess = True
    Else
         MsgBox "Error" & vbNewLine & "Ready state: " & xml.readyState & _
         vbNewLine & "HTTP request status: " & xml.Status
         sSuccess = False
    End If

    Set xml = Nothing

End Function

因此使用 VBA 调用 Graph API 是可能的:)

Answer 1

因此，您显示的代码仅部分正确。这是我发现实际有效的方法。（这是您提供的，因为我实际上找到了一个 Json 解析器，它比 innerHTML 方法更好地处理数据，我还必须使用不同版本的 MSXML，因为您引用的版本不适合我。）

Function GetToken()
    Dim xml As New MSXML2.XMLHTTP60
    Dim doc As MSHTML.HTMLDocument
    Dim urltoken As String

    'copy paste the URL you see when calling Microsoft Graph Explorer and add prompt + domain_hint parameters
    urltoken = "https://login.microsoftonline.com/{tenent id}/oauth2/v2.0/token"

    xml.Open "POST", urltoken, False

    xml.Send("client_id={clientid}&scope=https://graph.microsoft.com/.default&grant_type=client_credentials&client_secret=(cleint secret}")

    If xml.readyState = 4 And xml.Status = 200 Then
        Set doc = New MSHTML.HTMLDocument
        doc.Body.innerHTML = xml.responseText

        GetToken = doc.getElementsByName("access_token")(0).Value

        sSuccess = True
    Else
         MsgBox "Error" & vbNewLine & "Ready state: " & xml.readyState & _
         vbNewLine & "HTTP request status: " & xml.Status
         sSuccess = False
    End If

    Set xml = Nothing
End Function