I am working with Windows 10 universal app and i want to download a file in that. The file link to Sharepoint server. I have passed token in headr to a web service and then service returned byte array to my WinJS.
Now i want to save the file, how can i do this? I tried several code samples but not working.
var folder = Windows.Storage.ApplicationData.current.localFolder;
folder.createFileAsync("document.docx", Windows.Storage.CreationCollisionOption.replaceExisting).then(function (file) {
return Windows.Storage.FileIO.writeTextAsync(file, result.response);
}).then(function () {
//saved
});
I am using above code and it is creating new file but no content is placed there. Please suggest what to do.
You never open the file for WriteAccess. I have included code from my working app. First do this command
StorageFile ageFile = await local.CreateFileAsync("Age.txt", CreationCollisionOption.FailIfExists);
then do this:
// Get the file.
var ageFile = await local.OpenStreamForWriteAsync("Age.txt",CreationCollisionOption.OpenIfExists);
// Read the data.
using (StreamWriter streamWriter = new StreamWriter(ageFile))
{
streamWriter.WriteLine(cmbAgeGroup.SelectedIndex + ";" + DateTime.Now);
streamWriter.Flush();
}
ageFile.Dispose();
Related
I'm using Azure Cognitive Services for Text to Speech in a web app.
I return the bytes to the browser and it works great, however on the server (or local machine) the speechSynthesizer.SpeakTextAsync(inp) line outputs the audio to the speaker.
Is there a way to turn this off, since this runs on a web server (and even if I ignore it, there's the delay while it outputs audio before sending back the data)
Here's my code ...
var speechConfig = SpeechConfig.FromSubscription(speechKey, speechRegion);
speechConfig.SpeechSynthesisVoiceName = "fa-IR-FaridNeural";
speechConfig.OutputFormat = OutputFormat.Detailed;
using (var speechSynthesizer = new SpeechSynthesizer(speechConfig))
{
// todo - how to disable it saying it here?
var speechSynthesisResult = await speechSynthesizer.SpeakTextAsync(inp);
return Convert.ToBase64String(speechSynthesisResult.AudioData);
}
What you can do is add an audioconfig to the speechSynthesizer.
In this audioconfig object you can specify a file path to a .wav file which already exist on the server.
Whenever you run speaktextasyn instead of a speaker it will redirect the data to the .wav file.
This audio file you can read and perform your logic later.
Just add the following code before creating the speechSynthesizer object.
var audioconfig = AudioConfig.FromWavFileOutput(filepath);
here filepath is a location of the .wav file as a string.
Complete code :
string filepath = "<file path> " ;
var speechConfig = SpeechConfig.FromSubscription(speechKey, speechRegion);
var audioconfig = AudioConfig.FromWavFileOutput(filepath);
speechConfig.SpeechSynthesisVoiceName = "fa-IR-FaridNeural";
speechConfig.OutputFormat = OutputFormat.Detailed;
using (var speechSynthesizer = new SpeechSynthesizer(speechConfig, audioconfig))
{
// todo - how to disable it saying it here?
var speechSynthesisResult = await speechSynthesizer.SpeakTextAsync(inp);
return Convert.ToBase64String(speechSynthesisResult.AudioData);
}
I am using google drive API to download an excel file in my Flutter app but I want to store the downloaded file content response in a File and then do some update operations using excel dart package, below is the given code from reading an xlsx file from a path location.
var file = "Path_to_pre_existing_Excel_File/excel_file.xlsx"; //here I want to store the response from drive api
var bytes = File(file).readAsBytesSync();
var excel = Excel.decodeBytes(bytes);
//Do some logic here
for (var table in excel.tables.keys) {
print(table); //sheet Name
print(excel.tables[table].maxCols);
print(excel.tables[table].maxRows);
for (var row in excel.tables[table].rows) {
print("$row");
}
}
//then saving the excel file
// updating the excel sheet to Drive
updateToDrive(excel,fileId);
I have created all the required auth functions, drive scopes and my download function looks like this :
Future<void> downloadFile() async{
String fileId = '1TOa4VKfZBHZe######WLA4M95nOWp';
final response = await driveApi.files.get(
fileId,
downloadOptions: drive.DownloadOptions.fullMedia
);
print(response);
}
This function is executing correctely and giving Media type response, but I could not able to read this response so that I could store it in a file.
Any help would be truly appreciated, Thanks
I changed my download function to this, as drive.files.get() was returning a Future Object so I changed it to return Future<Media?> by type casting.
String fileId = "19jF3lOVW563LU6m########jXVLNQ7poXY1Z";
drive.Media? response = (await driveApi.files.get(
fileId,
downloadOptions: drive.DownloadOptions.fullMedia
)) as drive.Media?;
Now response is a Media on which we can listen to the sream to store the response in a file.
To do that first we need to get the app directory by path_provider
final String path = (await getApplicationSupportDirectory()).path;
final String fileName = '$path/Output.xlsx';
File file = File(fileName);
Now we want to write the stream of response Stream<List> into our file object which I found from this link
List<int> dataStore = [];
await response!.stream.listen((data) {
print("DataReceived: ${data.length}");
dataStore.insertAll(dataStore.length, data);
}, onDone: () {
print("Task Done");
file.writeAsBytes(dataStore);
OpenFile.open(file.path);
print("File saved at ${file.path}");
}, onError: (error) {
print("Some Error");
});
Now we can do whatever we want to make changes through excel package.
My Azure Web app calls html2pdfrocket with this code:
MemoryStream stream = new MemoryStream(result.Content.ReadAsByteArrayAsync().Result);
System.IO.File.WriteAllText(path, stream.ToString());
But I get back an invalid PDF of just a few bytes. I know the URL I pass to html2pdfrocket is valid because I can paste it into their Website to test it. Do I need to async/await or something else to get all the data before attempting to save it to a folder?
No need to use async/await, the .Result does the thing like await.
A similar error in your code, stream.ToString() only converts the stream object itself to a string, but does not contain the content.
I suggest you use byte[] array instead of stream(I did test with stream, but the saved .pdf file is empty even though the content length is correct).
Try use byte[] array like below, and it works at my side:
using (var client = new HttpClient())
{
var content = new FormUrlEncodedContent(new[]
{
new KeyValuePair<string, string>("apikey","xxxxx"),
new KeyValuePair<string, string>("value", "the url")
});
var result = client.PostAsync("http://api.html2pdfrocket.com/pdf", content).Result;
if (result.IsSuccessStatusCode)
{
// change the path as per your need
System.IO.File.WriteAllBytes(#"d:\temp\0618.pdf", result.Content.ReadAsByteArrayAsync().Result);
}
}
I am able to upload file to azure on specific container but I am not able to find any directory reference from azure documentation for Nodejs.
While using c# and Java we are able to upload on specific directory of container (sub directories)
Nodejs:
var BlobService = azure.createBlobService(storageAccount, accessKey);
BlobService.createBlockBlobFromLocalFile(container, BlobName, FilePath,
function(error, result, response) {
if (error) {
console.log(error)
} else {
console.log("uploaded to azure");
}
}
The above written piece of code works fine as I receive file to specific container..
but I need to upload to directory of container, anyone have encountered this issue before please help. I have found ways in Java but I need to use Nodejs
Thanks a lot
yes, i have tried and find the solution just by adding the directory name append to blobName. when calling the function just call it like below
let subDirecory = "Upload";
let BlobName = subDirecory + "/" + "BlobName"
Since Google is now ending the support for chrome apps. Recently Postman deprecated their chrome app and introduced a native app.
I am in the process of switching from postman chrome app to native app.
How do I copy the history from my chrome app to native app. Sync doesn't work.
There is a option to export data but that doesn't export the history.
Any Ideas?
So while searching for this I came across this post which is very helpful.
Thanks to stephan for sharing this code.
Follow these steps to copy your history from chrome app to native app.
//In Chrome DevTools on the background page of the Postman extension...
//A handy helper method that lets you save data from the console to a file
(function(console){
console.save = function(data, filename){
if(!data) {
console.error('Console.save: No data')
return;
}
if(!filename) filename = 'console.json'
if(typeof data === "object"){
data = JSON.stringify(data, undefined, 4)
}
var blob = new Blob([data], {type: 'text/json'}),
e = document.createEvent('MouseEvents'),
a = document.createElement('a')
a.download = filename
a.href = window.URL.createObjectURL(blob)
a.dataset.downloadurl = ['text/json', a.download, a.href].join(':')
e.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null)
a.dispatchEvent(e)
}
})(console)
//Common error reporting function
function reportError(){
console.error('Oops, something went wrong :-(');
}
//Open the database
var dbReq = indexedDB.open('postman')
dbReq.onerror = reportError;
dbReq.onsuccess = function(){
var db = dbReq.result;
//Query for all the saved requests
var requestReq = db.transaction(["requests"],"readwrite").objectStore('requests').getAll();
requestReq.onerror = reportError;
requestReq.onsuccess = function(){
var requests = requestReq.result;
//Dump them to a file
console.save(JSON.stringify(requests), 'postman-requests-export.json')
console.info('Your existing requests have been exported to a file and downloaded to your computer. You will need to copy the contents of that file for the next part')
};
};
//Switch to standalone app and open the dev console
//Paste the text from the exported file here (overwriting the empty array)
var data = []
//Enter the guid/id of the workspace to import into. Run the script with this value blank if you need some help
// finding this value. Also, be sure you don't end up with extra quotes if you copy/paste the value
var ws = '';
//Common error reporting function
function reportError(){
console.error('Oops, something went wrong :-(');
}
//Open the database
var dbReq = indexedDB.open('postman-app')
dbReq.onerror = reportError;
dbReq.onsuccess = function(){
var db = dbReq.result;
if(!data.length){
console.error('You did not pass in any exported requests so there is nothing for this script to do. Perhaps you forgot to paste your request data?');
return;
}
if(!ws){
var wsReq = db.transaction(["workspace"],"readwrite").objectStore('workspace').getAll();
wsReq.onerror = reportError;
wsReq.onsuccess = function(){
console.error('You did not specify a workspace. Below is a dump of all your workspaces. Grab the guid (ID field) from the workspace you want these requests to show up under and include it at the top of this script');
console.log(wsReq.result);
}
return;
}
data.forEach(function(a){
a.workspace = ws;
db.transaction(["history"],"readwrite").objectStore('history').add(a);
});
console.log('Requests have been imported. Give it a second to finish up and then restart Postman')
}
//Restart Postman
Note :
1.To Use DevTools on your chrome app you will need to enable following flag in
chrome://flags
2.Then just right click and inspect on your chrome postman app.
3.To User DevTools on your native app ctrl+shift+I (view->showDevTools)