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[英]Uploading image to Multer on Node JS server from Xamarin C# app
[英]Uploading a Revit file to Autodesk Forge OSS by Multer on a Node JS server with C# .NET HTTPClient
我有一個node.js
服務器,使用Forge 的 Autodesk forge Node.js SDK 。 為了上傳 object,我使用了 uploadObject()方法和multer中間件,就像這里所說的那樣。 代碼是這樣的:
router.post(
'/objects',
multer({ dest: 'uploads/' }).single('fileToUpload'),
XAuth,
async (req, res, next) => {
fs.readFile(req.file.path, async (err, data) => {
if (err) {
next(err);
}
try {
req.setTimeout(0);
await new ObjectsApi().uploadObject(
req.body.bucketKey,
req.file.originalname,
data.length,
data,
{},
req.oauth_client,
req.oauth_token
);
res.status(200).end();
} catch (err) {
next(err);
}
});
}
);
就像這里所說的那樣,我可以像這樣用Ajax將這個 api 稱為(我使用了input
html 元素來獲取文件):
var file = input.files[0];
var formData = new FormData();
formData.append('fileToUpload', file);
formData.append('bucketKey', bucketKey.toLowerCase());
$.ajax({
url: '/api/forge/oss/objects',
headers: {
'x-auth': token,
},
type: 'POST',
data: formData,
processData: false,
contentType: false,
success: function (data) {
console.log('success: Object has been uploaded');
},
error: function (err) {
console.log(err);
},
});
我通過創建 C# Revit 插件來上傳 Revit model 來執行相同的過程。 我的意思是我如何才能擁有類似於 C# 中的FormData()
的 object。 我已經通過HttpClient
和MultipartFormDataContent
嘗試了以下代碼:
using (MultipartFormDataContent httpContent = new MultipartFormDataContent())
{
Stream file = new FileStream(App.Path, FileMode.Open);
httpContent.Add(new StringContent(bucketKey.ToLower()), "bucketKey");
httpContent.Add(new StreamContent(file), "fileToUpload");
using (var httpClient = new HttpClient { BaseAddress = App.Uri })
{
httpClient.DefaultRequestHeaders.Add("x-auth", App.Token);
using (var httpResponse = await httpClient.PostAsync("/api/forge/oss/objects", httpContent))
{
if (httpResponse.IsSuccessStatusCode)
{
TaskDialog.Show("Upload", "success: Object has been uploaded");
}
}
}
}
但是我在服務器中收到MulterError: Field value too long
錯誤和500: 'Internal Server Error
response to my Revit plugin。
感謝Xiaodong Liang ,我像下面這樣編輯了我的代碼,它對我有用。
using (MultipartFormDataContent httpContent = new MultipartFormDataContent())
{
byte[] byteArray = File.ReadAllBytes(App.Path);
Stream stream = new MemoryStream(byteArray);
StreamContent streamContent = new StreamContent(stream);
streamContent.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
httpContent.Add(streamContent, "fileToUpload");
httpContent.Add(new StringContent(bucketKey.ToLower()), "bucketKey");
using (var httpClient = new HttpClient { BaseAddress = App.Uri })
{
httpClient.DefaultRequestHeaders.Add("x-auth", App.Token);
using (var httpResponse = await httpClient.PostAsync("/api/forge/oss/objects", httpContent))
{
if (httpResponse.IsSuccessStatusCode)
{
TaskDialog.Show("Upload", "success: Object has been uploaded");
}
}
}
}
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