Question Automatically selling steam items, error 400

[frej4189]

As has also been the case earlier, I am trying to create an automatic steam market seller, however I get error 400 when trying to do so.

I have tried multiple ways, ending up trying to use httpRequestPost from the steamcommunity package

community.httpRequestPost('https://steamcommunity.com/market/sellitem/', {
		form: {
			sessionid: community.getSessionID(),
			appid: item.appid,
			contextid: item.contextid,
			assetid: item.assetid,
			amount: 1,
			price: item.price
		}, 
		headers: {
			'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
			'User-Agent': 'Opera/9.80 (X11; Linux i686; Ubuntu/14.10) Presto/2.12.388 Version/12.16',
			'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
			'Connection': 'keep-alive',
			'Cookie': cookies,
			'Host': 'steamcommunity.com',
			'Accept-Encoding': 'gzip, deflate',
			'Accept-Language': 'en-US,en;q=0.5'
		},
		json: true
		}, (err, response, json) => {
			if(err) {
				console.log(err.toString());
				return;
			}

			console.log(json);

		}, "steamcommunity");

This will return error 400, and I have no clue as to why that is, any suggestions?

[Dr. McKay]

When you're doing things on the market, you need to set the Referer header to an expected value. Also, don't manually set any of those other headers either.

[frej4189]

I set the referer header, still got the error though - how many of those arguments am I supposed to set?

EDIT: Sorry, I specified an invalid price, that was the reason as to why I didn't get it working.

Edited December 17, 2017 by frej4189