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Header is not defined [closed]

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I ran into a problem when trying to do a fetch response in Javascript. I am getting an error "ReferenceError ReferenceError: headers is not defined" evertime I try to run it I get the same error. I am trying to submit a form with contact information I will not add that on here since it is long. Here is the Javascript code I don't know where in the code it is not defining the header.
const thisForm = document.getElementById('myForm');
thisForm.addEventListener('submit', async function(e) {
e.preventDefault();
let headers = new fetch.Headers();
headers.set('Authorization', 'Basic can\'t put this on here');
const response = await fetch("url", {
method: 'POST',
headers: {
headers,
body: JSON.stringify(Object.fromEntries(formData))
}
})
.then(response => response.json())
.then(json => console.log(result));
});
<form id=myForm><button>submit</button></form>
I have tried to add let headers = new fetch.Headers(); That did not work I am pretty sure I wrote everything else correctly

fetch() just doesn't send JSON object [closed]

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Closed 4 months ago.
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I send JSON object using fetch() this way:
async testPost(){
const url = 'https://untitled-0clyb6aowq2u.runkit.sh';
var payload = { "test" : 1 };
const settings = {
method: 'POST',
headers: {
Accept: 'application/json',
'Content-Type': 'application/json',
body: JSON.stringify(payload)
}
};
try {
const resp = await fetch(url, settings);
const data = await resp.json();
if(data.ok != 1){
console.log('FATAL ERROR PIZDEC: ');
console.log(data);
return { ok: 0, error: data};
}
console.log('Success:' + data.success);
return;
}
catch (e) {
return { ok: 0, error: e };
}
}
Server always gets the request, but there's just an empty object in the body. I've tried:
To use runkit as a server [fail]
To use express on localhost as a server [fail]
Check endpoints with the same request made from Postman. It works, postman sends normal json {"test" : 1}, it is printed in server console. So I conclude that the problem is on the client's side.
Check all the headers and CORS policy [doesn't help]
Use different approaches to send request: jQuerry.ajax(), XHR, construct Request() manually. [fail]
Why can the body just disappear?
I don't believe my question is a duplicate of this.

You shouldn't put body inside headers, see example on MDN here.

res.redirect is not a function - express.js [closed]

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Closed 8 months ago.
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I am new to Express.js and am trying to create a URL shortener.
When the user naviagtes to domain.com/r/ I query the DB for the param and get the actual URL.
I use res.redirect to try to redirect to their stored URL but it fails with 'res.redirect is not a function'.
Please see the snippet below:
router.get('/r/:shortUrl', function(req, res) {
connectDatabase.then(
checkDatabase(req.params.shortUrl)
.then( res => {
console.log('checkdatdabase res => ' + res); //res = 'https://www.google.com'
res.redirect(res); //TypeError: res.redirect is not a function
})
.catch(e => {
//executed due to above error
console.error(e);
res.redirect(307, '/home');
})
)
});
Any advice would be much appreciated as this is a learning project for me.

You have two variables named res.
One, passed to the callback you pass to get() is a response object which has a redirect method.
The other is the resolved value of checkDatabase and is not a response object.
The latter has shadowed the former so you can't access it any more.
Use unique names for your variables to avoid this problem.
I recommend using a linter. ESLint can catch this kind of problem with the no-shadow rule.

datdabaseRes and res should be different variable name. Otherwise res has the respose object of database connection in the scope you are trying to use it.
router.get('/r/:shortUrl', function(req, res) {
connectDatabase.then(
checkDatabase(req.params.shortUrl)
.then( datdabaseRes => {
console.log('checkdatdabase res => ' + datdabaseRes); //res = 'https://www.google.com'
res.redirect(datdabaseRes); //TypeError: res.redirect is not a function
})
.catch(e => {
//executed due to above error
console.error(e);
res.redirect(307, '/home');
})
)
});

Returned JSON properties are not string in my node.js express app [closed]

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Closed 7 years ago.
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For my node.js express app, I'm using Request module to request data over REST API.
This is my request implementation in app.js
var request = require('request')
request.post('https://getpocket.com/v3/get', {
headers: {'content-type':'application/json'},
body: JSON.stringify({
consumer_key:'...',
access_token:'...',
contentType:'article',
sort:'title'
})
}, function (err, res, body) {
console.log(JSON.parse(body))
})
And I'm getting JSON response as the following
{ status: 1,
complete: 1,
list:
{ '890245271':
{ item_id: '890245271',
resolved_id: '890245271',
given_url: 'http://davidwalsh.name/open-graph-data-nodejs',
given_title: 'Get Open Graph Data with Node.js',
... }
},
error: null,
search_meta: { search_type: 'normal' },
since: 1444630917 }
The problem is that this is invalid JSON as JSON properties need to be string. What am I missing here?

You're parsing the JSON:
console.log(JSON.parse(body))
// Here ----^^^^^^^^^^^^^^^^
So what you're seeing is the console.log representation of the JavaScript object resulting from parsing the JSON.
If you want to see the JSON instead, just don't parse:
console.log(body);

Streaming app.net's public stream with node js [closed]

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Closed 4 years ago.
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I'm new to this streaming/http long living connection stuff.
This is what I got so far:
var accessToken = require('./config.js').accessToken
, https = require('https')
;
var req = https.request({
host: 'alpha-api.app.net',
path: '/stream/0/posts/stream/global',
port: 443,
method: 'GET',
headers: {
'Authorization': 'Bearer ' + accessToken,
}}).on('response', function(response) {
response.on('data', function(chunk) {
console.log(chunk);
})
});
req.end();
req.on('error', function(e) {
console.error(e);
})
I was expecting this to run as long as possible and fetching updates as they drop in. But It turns out this terminates after a couple of seconds.
What am I missing?

Streams are not yet implemented in App.net see https://github.com/appdotnet/api-spec/blob/master/resources/streams.md
The API call you're making is only for the 20 most recent posts in the global stream: https://github.com/appdotnet/api-spec/blob/master/resources/posts.md#retrieve-the-global-stream