如何使用Microsoft Graph API下载附件?

时间:2018-09-24 07:30:02

标签: rest office365 microsoft-graph

我可以使用 Microsoft Graph API

获取邮箱和附件的详细信息

样品申请

GET https://outlook.office.com/api/v2.0/me/messages/AAMkAGI2THVSAAA=/attachments?$select=Name

示例响应

状态码:200

{
    "@odata.context": "https://outlook.office.com/api/v2.0/$metadata#Me/Messages('AAMkAGI2THVSAAA%3D')/Attachments(Name)",
    "value": [
        {
            "@odata.type": "#Microsoft.OutlookServices.FileAttachment",
            "@odata.id": "https://outlook.office.com/api/v2.0/Users('ddfcd489-628b-40d7-b48b-57002df800e5@1717622f-1d94-4d0c-9d74-709fad664b77')/Messages('AAMkAGI2THVSAAA=')/Attachments('AAMkAGI2j4kShdM=')",
            "Id": "AAMkAGI2j4kShdM=",
            "Name": "minutes.docx"
        }
    ]
}

我需要使用Microsoft Graph API下载附件的服务。

4 个答案:

答案 0 :(得分:1)

根据您的描述,我假设您要使用MS Graph API下载附件。

根据我的测试,我们可以按照以下步骤下载附件。

第一步,我们应该使用以下API获取附件ID:

GET /me/messages/{id}/attachments

GET /users/{id | userPrincipalName}/messages/{id}/attachments

Step2,我们可以使用以下代码下载附件。

Chilkat.StringBuilder sbSavePath = new Chilkat.StringBuilder();
Debug.WriteLine("name: " + json.StringOf("value[i].name"));
Debug.WriteLine("contentType: " + json.StringOf("value[i].contentType"));
int sizeInBytes = json.IntOf("value[i].size");
Debug.WriteLine("size: " + Convert.ToString(sizeInBytes));

//  Extract the data and save to a file.
sbSavePath.SetString("qa_output/");
sbSavePath.Append(json.StringOf("value[i].name"));

attachData.Clear();
attachData.AppendEncoded(json.StringOf("value[i].contentBytes"),"base64");
attachData.WriteFile(sbSavePath.GetAsString());

//  Get the last-modified date/time and set the output file's last-mod date/time..
lastMod.SetFromTimestamp(json.StringOf("value[i].lastModifiedDateTime"));
fac.SetLastModified(sbSavePath.GetAsString(),lastMod);

有关简单代码的更多详细信息,我们可以参考this document

如果我们使用API​​的Beta版,并且附件是在线文件,我们还可以使用sourceUrl属性下载附件。

这里是a closed issue about how to download attachment。这可能对您有帮助。

答案 1 :(得分:0)

是的,您可以从Microsoft Graph API在本地下载文件。您需要将字节流转换为base64解码数据。这是代码

$curl = curl_init();
curl_setopt_array($curl, array(
  CURLOPT_URL => "https://graph.microsoft.com/v1.0/me/messages/your_message_id/attachments",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => array(
    "Prefer: IdType=\"ImmutableId\"",
    "Authorization: Bearer your_access_token"
  ),
));

$response = json_decode(curl_exec($curl),true);
curl_close($curl);

$fileName = $response['value'][0]['name'];
$contents = base64_decode($response['value'][0]['contentBytes']);

header("Content-type: ".$response['value'][0]['contentType']);
header("Content-Disposition: attachment; filename=" . $fileName);
print $contents;
die;

答案 2 :(得分:0)

使用C#.NET时:

await graphClient.Users["coyote@acme.com"].MailFolders.Inbox.Messages.Request()
                .Expand("attachments").GetAsync();

await graphClient.Me.MailFolders.Inbox.Messages.Request()
                .Expand("attachments").GetAsync();

致谢

答案 3 :(得分:0)

供其他使用python的用户参考,希望能帮助你节省一些时间

import io
import response

url = f"https://graph.microsoft.com/v1.0/me/messages/{email_id}/attachments/{attachment_id}/$value"

payload={}
headers = {
  'Content-Type': 'application/json',
  'SdkVersion': 'postman-graph/v1.0',
  'Authorization': f'Bearer {access_token}'
}

response = requests.request("GET", url, headers=headers, data=payload, allow_redirects=False)

toread = io.BytesIO()
toread.write(response.content)
toread.seek(0)

df = pd.read_excel(toread)
print(df)