“Réponse du grepper” Réponses codées

Convertir JSON en Excel en javascript

//HTML
<button onclick="exportToCsv()">export to CSV</button>

// Javascript
var Results = [
  ["Col1", "Col2", "Col3", "Col4"],
  ["Data", 50, 100, 500],
  ["Data", -100, 20, 100],
];

exportToCsv = function() {
  var CsvString = "";
  Results.forEach(function(RowItem, RowIndex) {
    RowItem.forEach(function(ColItem, ColIndex) {
      CsvString += ColItem + ',';
    });
    CsvString += "\r\n";
  });
  CsvString = "data:application/csv," + encodeURIComponent(CsvString);
 var x = document.createElement("A");
 x.setAttribute("href", CsvString );
 x.setAttribute("download","somedata.csv");
 document.body.appendChild(x);
 x.click();
}
Light Lark

Comment utiliser Ajouter une réponse Grepper (a)

decrypt file xml file
Prickly Petrel

Réponse du grepper

//working with node express many times we find cors issue even though we have installed cors package modules 
//this is the working example using with socket io 

var app = require('express')();
var http = require('http').createServer(app);
var io = require('socket.io')(http,{
	cors:{
		origin:"http://localhost:3000",
		methods: ["GET","POST"],
		allowedHeaders: [""],
		credentials: true
	}
});
const cors = require('cors');

// creating web socket
io.on('connection',(socket)=>{
	console.log('User Online');

	socket.on('canvas-data',(data)=>{
		socket.broadcast.emit('canvas-data',data);
	})
})

// const app= express();
app.use(cors());


var server_port = process.env.YOUR_PORT || process.env.PORT || 5000;
http.listen(server_port,() =>{
	console.log("Started on : "+server_port);
})
// const PORT = 3001;
// app.use(cors());


// app.get("/", (req, res)=>{
// 	res.send("hell of code");
// });

// app.listen(PORT, ()=>{
// 	console.log(`Server running on port ${server_port}`);
// })
Anish Mandal

Réponse du grepper

echo    >>   .txt
Markable Undead

Comment ajouter une réponse Grepper

Hi All if you are getting this error:

error: Error [firebase_auth/internal-error] {"error":{"code":400,"message":"API key not valid. Please pass a valid API key.","errors":[{"message":"API key not valid. Please pass a valid API key.","domain":"global","reason":"badRequest"}],"status":"INVALID_ARGUMENT","details":[{"@type":"type.googleapis.com/google.rpc.ErrorInfo","reason":"API_KEY_INVALID","domain":"googleapis.com","metadata":{"service":"identitytoolkit.googleapis.com"}}]}}


this means you are trying to run app on web chrome and in your flutter app this is not configure so follow below steps:

 1. Go to https://console.firebase
 2. Select your project name i.e. "E-Commerce App"
 3. Select Add App option from dashboard select platform (flutter/android/ios/web) from this select flutter
 4. Add Firebase to your Flutter app this screen will open then select next
 5. From any directory, run this command:"dart pub global activate flutterfire_cli"
 6. Then, at the root of your Flutter project directory, run this command:"flutterfire configure --project=eshop-a44ca"
 7. After "flutterfire configure" check npm

add this in main.dart file: 
await Firebase.initializeApp(
		 options: DefaultFirebaseOptions.currentPlatform,
	 );

 8. Run this command in your project directory npm install -g firebase-tools
9.Again run this command ""flutterfire configure --project=eshop-a44ca" you will see below screen [firebase options file created in lib folder]


 9. now you can sign up/register user successfully 
 10. [user created on firestore database ]


  [1]: https://i.stack.imgur.com/NBiDz.png
Glorious Grebe

Téléchargement des données JSON sur S3 Bodet dans le nœud JS

var AWS = require('aws-sdk');
AWS.config.update({ region: 'us-east-1' });
var s3 = new AWS.S3();

var obj = {
    firstname: "Navjot",
    lastname: "Dhanawat"
};

var buf = Buffer.from(JSON.stringify(obj));

var data = {
    Bucket: 'bucket-name',
    Key: 'filename.json',
    Body: buf,
    ContentEncoding: 'base64',
    ContentType: 'application/json',
    ACL: 'public-read'
};

s3.upload(data, function (err, data) {
    if (err) {
        console.log(err);
        console.log('Error uploading data: ', data);
    } else {
        console.log('succesfully uploaded!!!');
    }
});

// IMPORTANT !!!!

// real node js route for POST request
// S3 Upload Test Starts
// const express = require('express');
var AWS = require('aws-sdk');
// for s3 data from create-project
var data;
var buf;
var s3

AWS.config.update({
    accessKeyId: "AKIA2IHT2A4BSEINFZWC",
    secretAccessKey: "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",
    region: 'us-east-2'
});
s3 = new AWS.S3();

// Define POST route
router.post('/test-upload', (request, response) => {
    buf = Buffer.from(JSON.stringify(request.body)); 
    data = {
        ACL: 'public-read',
        Bucket: "chunkupload",
        Key: `uploadtest/${Date.now().toString()}`,
        Body: buf,
        ContentEncoding: 'base64',
        ContentType: 'application/json',
    };
    s3.upload(data, function (err, data) {
        if (err) {
            console.log(err);
            console.log('Error uploading data: ', data);
        } else {
            console.log('succesfully uploaded!!!');
            response.json({"upload":"successful"});
        }
    });
    
});




// S3 Upload Test Ends
Light Lark

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