I am trying to upload pictur from iOS use origin NSUrlsession.
I do not kown why node.js is not work but php works fine.
In node.js
app.post('/user/account/avatar', upload.single('avatar.png'), function (req, res, next) {
// req.file is the `avatar` file
// req.body will hold the text fields, if there were any
console.log(req.file);
console.log(req.files);
console.log('body:', req.body);
})
The console log:
undefined
undefined
body: { '--Boundary-D60C5F57-4786-413C-98B4-9FC89270E1E9\r\nContent-Disposition: form-data; name': '/Users/liyan/Library/Developer/CoreSimulator/Devices/9D529FFD-DB9B-43A3-BA5C-0E4ED346CC00/data/Containers/Data/Application/BCDFF115-EF53-46B7-8FF9-A5A5A87DB046/Documents/avatar.png;filename=avatar.png\r\nContent-Type: image/png\r\n\r\n\r\n--Boundary-D60C5F57-4786-413C-98B4-9FC89270E1E9--\r\n' }
Related
I'm working with React and axios. I'm trying to fetch the response using axios however, unable to understand why I'm getting wrong content-type even though I'm setting it in my backend code.
Code (backend):
router.get(url, async (req, res) => {
// return new Promise(async (resolve, reject) => {
try {
if (file exists) {
var fileContents = Buffer.from(document[0].data, "base64"); //document contains the data from the postgres database
var readStream = new stream.PassThrough();
readStream.end(fileContents);
res.set(
"Content-disposition",
"attachment; filename=" + document[0].fileName
);
res.setHeader("content-type", document[0].fileType);
readStream.pipe(res);
console.log("+++++++++++++++++++");
console.log(res);
console.log("+++++++++++++++++++");
return;
} else {
res.json({
status: 0,
message: "File not found",
});
return;
}
// resolve({ document });
} catch (err) {
console.log(err);
}
});
The above backend code works absolutely fine. I even printed the response to check whether the content-type is setting or not. I'm even providing the output snippet for that as well
However, in the frontend if I try to fetch the response this is what I'm receiving
I'm not sure what's wrong. Why I'm receiving wrong content-type. Even the content length is same for any sort of file which I try to download.
The axios call :
let response = await Axios.get(fileURL, {
responseType: "blob"/"arraybuffer",
Authorization: "Bearer " + token,
});
Response.data output :
Any help will be appreciated!
I was trying to pass my data from mongodb/express to react using componentDidMount() life cycle function but for some reason it doesn't work but instead it gives me this "Uncaught (in promise) SyntaxError: Unexpected token < in JSON at position 0" error.
Here's how I set up my express:
app.get('/movies', function(req, res){
movie.find({}, function(err, allMovies){
if(err){
console.log(err);
} else {
res.send(allMovies);
}
})
});
app.listen(3000, function(){
console.log('App server is listening to 3000');
});
And inside my react file I call the componentDidMount function which is running via webpack at port 8080.
componentDidMount() {
console.log('test')
fetch('/movies')
.then(response => response.json())
.then(movies => this.setState({
movies: movies
}));
}
when i console.log response it returns this https://prnt.sc/iye6kk.
Any idea what am I doing wrong why my data is not passing properly?
In componentDidMount,script is parsing the response to JSON.
.then(response => response.json())
But server is not sending the response in the JSON format.
Send it in json format.
res.json({allMovies}); //ecma6 shorthand property names
Or
res.json({allMovies : allMovies});
I'm working on a project and I'm using a backend sails js, a MongoDB as database and front-end React js.
I have a problem on the upload image.
Here is the code Sails backend and when I test it in PostMan, I got this result (result test PostMan), and the image is not stored in the specified folder but a value containing id and name of file is inserted in MongoDB,
uploadFile: function (req, res) {
var image= req.file('avatar');
image.upload({
adapter: require('skipper-gridfs'),
uri: 'mongodb://localhost:27017/name_db.name_collection',
dirname: '../../assets/images/'
}, function (err, filesUploaded) {
if (err){
return res.header("Access-Control-Allow-Origin", "*");
/*res.negotiate(err);*/res.json(err);
}
else{
return
res.header("Access-Control-Allow-Origin", "*"); res.ok({
files: filesUploaded,
textParams: req.params.all()
});
}
});
},
result test postMan
And here is the Reactjs front-end code
_handleSubmit(e) {
e.preventDefault();
// TODO: do something with -> this.state.file
fetch('http://localhost:1337/uploadPhoto/logos', {
method: 'POST',
body: JSON.stringify({avatar:this.state.file})
})
.then((response) => response.json())
.catch((err) => { console.log(err); });
}
Sails version 0.12,
React version 15.5,
and MongoDB version 3.4.9.
Thanks for your help
There is no dirname parameter for skipper-gridfs adapter because the file won't be stored onto the local file system.
Skipper will store the file into the MongoDB database.
U need to send it as form Data
let formData = new FormData()
console.log(values);
await formData.append('profile_picture',values.profile_picture.rawFile,values.profile_picture)
await fetch('http://localhost:1337/api/moderators',{
body:formData,
method:'POST',
credentials:'include' //If Using Session for react-app instead of JWT token
})
I am sending my data like. I am new to angular. I am not able to access the userDetails in my post request.
Upload.upload({
url: '/api/upload/',
data: {'File': File, 'userDetails': userDetails}
});
Server Code:
userRouter.route('/upload')
.post(function(req, res) {
console.log(req.data);
upload(req, res, function(err) {
if(err) {
res.json({ error_code:1, err_desc:err });
return;
}
res.json({ error_code:0, err_desc:null });
})
});
the field req.data is undefined
I'm new on angularjs too and I had the same problem. I made use of https://github.com/expressjs/node-multiparty to get the data sent from ng-file-upload.
I hope it helps you too.
I'm trying to create a Facebook chatbot with NodeJS, Express, and a Heroku server.
I created my webhook on heroku and had it verified and saved by facebook. I then started adding code that would reply to the incoming messages and I can't seem to get it connected. It keeps saying "Error, wrong validation token" when I try to load my webhook in my browser. And when I try to send my bot a message I get no response. Even though I already had it verified and didn't change the code.
Here is my code:
var express = require('express');
var bodyParser = require('body-parser');
var app = express();
var port = process.env.PORT || 3000;
// body parser middleware
app.use(bodyParser.urlencoded({ extended: true }));
// test route
//app.get('/', function (req, res) { res.status(200).send('Hello world!') });
app.get('/', function (req, res) {
if (req.query['hub.verify_token'] === '8FKU9XWeSjnZN4ae') {
res.send(req.query['hub.challenge']);
}
res.send('Error, wrong validation token');
})
app.post('/', function (req, res) {
messaging_events = req.body.entry[0].messaging;
for (i = 0; i < messaging_events.length; i++) {
event = req.body.entry[0].messaging[i];
sender = event.sender.id;
if (event.message && event.message.text) {
text = event.message.text;
sendTextMessage(sender, "Text received, echo: "+ text.substring(0, 200));
}
}
res.sendStatus(200);
});
// error handler
app.use(function (err, req, res, next) {
console.error(err.stack);
res.status(400).send(err.message);
});
app.listen(port, function () {
console.log('Listening on port ' + port);
});
var token = <myToken>;
function sendTextMessage(sender, text) {
messageData = {
text:text
}
request({
url: 'https://graph.facebook.com/v2.6/me/messages',
qs: {access_token:token},
method: 'POST',
json: {
recipient: {id:sender},
message: messageData,
}
}, function(error, response, body) {
if (error) {
console.log('Error sending message: ', error);
} else if (response.body.error) {
console.log('Error: ', response.body.error);
}
});
}
So I'm confused as to why nothing is happening and why I'm getting that error. I feel like I'm missing a whole step. I am following this tutorial by the way: https://developers.facebook.com/docs/messenger-platform/quickstart
Any help is appreciated. Thanks!
Edit: Here are my heroku logs
Do not post your full access tokens here!
Have you tested the output of the challenge? Since it's just a GET and you know all values you can try it yourself: your-app-domain.com/your-callback-url?hub_mode=subscribe&hub_verify_token=the_token_you_set_in_your_app_config&hub_challenge=ping which sould print 'ping' if everything work fine.
Make sure you add sendStatus(200) to the hub challenge response, too.
You need to subscribe your page to the app first. To do so make a POST request to /your-page-id/subscribed_apps which should return "success". You can make a GET request to the same endpoint afterwards to double check your app is subscribed to your page
You did not mention which events you subscribed to (needs to be message_deliveries, messages, messaging_optins, messaging_postbacks)
Make sure the webhooks tab in your app dashboard now says "complete"
Test again
You are actually using "request" but you are never importing it anywhere. Here's how to fix it:
var request = require("request")
Once you have added that to your index.js or app.js file (basically whatever this file is), make sure you do:
npm install request --save
This should fix it. Unfortunately, Heroku doesn't error out and say that it does not know what "request" is and that's why it was so hard to figure this out in the first place!