Develop Reference

Send a local file via Axios for debug purposes

I am testing my application, and I want to send a local mp3 file that I have stored in my storage folder.
How can I send this via Axios? Should I convert it to a Blob/File, and if so, how?
Thanks in advance.
This code below is how I tried it, but it didn't work.
const formData = new FormData();
const file = new File('storage/app/audio/debug.mp3', 'test.mp3', {
type: Blob,
lastModified: Date.now()
});
formData.append('data', file);
formData.append('id', urlId[2]);
return Axios.post("http://voice-app.test/api/v1/file", formData, {
headers: {
'Authorization': `Bearer ${localStorage.getItem("Bearer")}`,
}
}).catch((e) => {
console.error(e);
})

AWS S3 update image using pre-signed URL (Axios-PUT Request)

I'm trying to update a local JPG image file into an S3 bucket using the REST PUT request and Axios.
I managed to send the PUT request and to get a positive answer from AWS S3 Service but what it's been upload is not a JPG file but a JSON file.
This is the code that I'm using:
//Create the FormData
var data = new FormData();
data.append('file', fs.createReadStream(image_path));
//Send the file to File-system
console.log("Sending file to S3...");
const axiosResponse = await axios.put(image_signed_url, {
data: data,
headers: { 'Content-Type': 'multipart/form-data' }
}).catch(function(error) {
console.log(JSON.stringify(error));
return null;
});
I have already try to change the headers to {'Content-Type': 'application/octet-stream' } but I obtained the same result.

It did not manage to make AXIOS work in order to upload an image.
The node-fetch module did it sending the image as a binary and specifying the "Content-type".
If I try to the same using AXIOS it the image was always packet into a form-data and the result was JSON file uploaded into the S3 bucket instead of the image.
//Send the file to File-system
console.log("Sending file to S3...");
const resp = await fetch(image_signed_url, {
method: 'PUT',
body: fs.readFileSync(image_path),
headers: {
'Content-Type': 'image/jpeg',
},
}).catch( err => {
console.log(err);
return null;
});

Push File Download on Ajax POST Nodejs Express

On Node Server i have this code . Its basically sending the browser POST data to api server and recieves a file as chunk data and the same data is send back to browser via pipe response . But the issue is the api reponse is correct and i can write the file using nodejs locally but it doesnt push download file in browser
router.post('/MyURLOnNODE', function (req, res) {
var MyJsonData = { some Data };
res.writeHead(200, {'Content-disposition': 'attachment; filename=fileArchive.tgz','Content-Type': 'application/force-download'});
try {
request({
url: 'SomeAPI Url', //URL to hit
method: 'POST',
json: MyJsonData
}).pipe(res);
} catch(e) {
console.log("Pipe error",e);
}
console.log("File Streaming Called ",MyJsonData)
}
);
Client Side Code ...This was an attempt to create a blob and use it on urlObject. but the downloaded file is corrupted when i checked in hex.
$http({
method: 'POST',
url: 'MyURLOnNODE',
data: PostData, //forms user object
headers: {
'Content-Type': 'application/json'
}
})
.then(function (data) {
var response=data.data;
var id = Flash.create('success', "Folder Archieved", 5000);
var a = document.getElementById('arch');
a.href = URL.createObjectURL(new Blob([response]));
a.download = "FolderMe.tgz";
a.type='application/octet-stream '
a.click();
}
So is there any solution to this ? either on NodeJs Side or On browser
Update : https://stackoverflow.com/a/7969061/7078299
This thread says its hard to convert an ajax request to download file. So i need to work on client on using urlobject. But blob isnt working with stream data. How to solve it

You can use a node module called file-saver and use saveAs method provided by it and download the file on the client side.
First npm install file-saver;
You can use it as
import {saveAs} from 'file-saver';
and inside your then block you need to add this line
saveAs(new Blob([response]), <your file name>)
It will auto-download your file.

i fixed the issue by adding a reponseType on Client Side Code. Now the blob and ObjectUrl works correctly
$http({
method: 'POST',
url: 'MyUrl',
data: PostData, //forms user object
headers: {
'Content-Type': 'application/json'
},
responseType: 'arraybuffer'
})
.then(function (response) {
console.log(response);
var headers = response.headers();
var blob = new Blob([response.data],{type:headers['content-type']});
var link = document.createElement('a');
link.href = window.URL.createObjectURL(blob);
link.download = "Archive.tgz";
link.click();
});

axios send image through post

I'm trying to send an image through axios POST request. The request is going through, but the image is not uploading.
Here is my code,
const screenshotPath = path.join(os.tmpdir(), 'screenshot.png');
var bodyFormData = new FormData();
//bodyFormData.append('uploadedFile', screenshotPath);
bodyFormData.append('uploadedFile', fs.createReadStream(screenshotPath));
axios({
method: 'post',
url: url,
data: bodyFormData,
config: {
headers: {
'Content-Type': 'multipart/form-data',
Authorization: 'Bearer ' + token
}
}
})
Is it because of the filename path ?
this is my screenshotPath
C:\Users\oem\AppData\Local\Temp\screenshot.png

You are using createReadStream function from the File System library of Node. But Node is running on server-side and here you are working with a react application which is running on client side.
Please check MDN documentation on how to upload files from front-end applications.

Upload Excel File from React to C# ASP.NET Core backend

I am trying to upload a file from a react front end to a C# backend. I am using drop zone to get the file and then I call an api helper to post the file but I am getting different errors when I try different things. I am unsure exactly what the headers should be and exactly what I should send but I get two distinct errors. If I do not set the content-type I get 415 (Unsupported Media Type) error. If I do specify content type as multipart/form-data I get a 500 internal server error. I get the same error when the content-type is application/json. The url is being past in and I am certain it is correct. I am unsure if the file should be appended as file[0][0] as I have done or as file[0] as it is an array but I believe it should be the first. Any suggestions welcome :) Here is my api post helper code:
export const uploadAdminFile = (file, path, method = 'POST', resource =
config.defaultResource) => {
const url = createUrl(resource, path);
const data = new FormData();
data.append('file', file[0][0]);
data.append('filename', file[0][0].name);
const request = accessToken =>
fetch(
url,
{
method,
mode: 'cors',
withCredentials: true,
processData: false,
headers: {
Accept: 'application/json',
'Content-Type': 'application/json', //'multipart/form-data',
Authorization: `Bearer ${accessToken}`,
},
body: data,
})
.then(res => res.json())
.then(success => console.log('API HELPER: file upload success: ', success)
.catch(err => console.log('API HELPER: error during file upload: ', err)));
return sendRequest(request, resource);
};

Thanks for the help and suggestions, it turned out to be a backend issue but even still I learned a lot in the process. I will post my working code here in case anyone comes across this and finds it useful.
export const uploadAdminFile = (file, path, resource=config.defaultResource) => {
const url = createUrl(resource, path);
const formData = new FormData();
formData.append('file', file[0][0]);
formData.append('filename', file[0][0].name);
const request = accessToken =>
fetch(url,
{
method: 'POST',
headers: {
Accept: 'application/json',
Authorization: `Bearer ${accessToken}`,
},
body: formData,
});
return sendRequest(request, resource);
};
As mentioned, the file name does not need to be sent separately and count be omitted. I am indexing the file this way because I get it from dropzone as an array and I only want a single file (the first one in the array). I hope this helps someone else out and here is a link to the mdn fetch docs (good information) and a good article on using fetch and formData.