Errors

The status says what happened. A 4xx means the request can't be done as sent, and a 5xx that it is worth trying again.

`200, 201`	It worked. The body is the result.
`204`	It worked, and there is nothing to answer.
`400`	The body isn't valid JSON, a filter is wrong, or a required header is missing.
`401`	The key is missing or unknown.
`402`	The balance doesn't cover the purchase.
`403`	This account can't do this.
`404`	There is no such thing, or no copy of your inventory yet.
`409`	Something changed: the lot sold, the price is new, the deal moved on. Read it again.
`413`	The upload is over the limit.
`422`	A value in the request can't be used.
`429`	Too many requests. Wait for Retry-After.
`502`	A service behind the API is away. Try again in a moment.

Refusals

When there is a reason you can act on, the body names it in code. These codes don't change, so your program can rely on them. Other failures are the status with a line of text, which is for people.

{ "code": "not_enough_money" }

Status	Code	When
400	`bad_address`	The address is not one of Tron's.
400	`bad_image`	A message takes up to 3 screenshots, PNG or JPEG, of up to 8 MB each.
400	`bad_ticket`	A ticket needs a topic and a message of up to 2000 characters.
400	`too_little`	Less than $1.00 goes out.
400	`unknown_coin`	Rockvel does not send this coin in this network.
402	`not_enough_money`	The balance doesn't cover the price.
403	`banned`	This account can't start anything new on Rockvel.
403	`not_your_order`	This deal isn't yours, or this step belongs to the other side.
403	`stall_suspended`	Rockvel has suspended your stall, and only Rockvel can lift it.
404	`no_such_auto_buy`	There is no such auto-buy waiting: it bought all it asked for, was called off, or isn't yours.
404	`no_such_bargain`	There is no such bargain waiting for your answer: it ended, it is the other side's turn, or it isn't yours.
404	`no_such_order`	There is no such deal.
404	`no_such_ticket`	No such ticket of yours.
404	`no_such_withdrawal`	No such withdrawal of yours.
409	`already_listed`	One of the items is already on sale or sold.
409	`already_signed`	The withdrawal is signed already and goes ahead.
409	`buyer_cannot_pay`	The buyer no longer has the money for this price, so the bargain ended.
409	`item_gone`	An item isn't in your inventory copy. Upload a fresh one and try again.
409	`item_unknown`	An item isn't in the catalog yet.
409	`lot_gone`	The lot sold or was taken down.
409	`no_trade_url`	Set your trade link first.
409	`none_match`	No lot matches the price and filters now.
409	`not_refundable`	Your deposits cannot give back this much, or a source would get less than the minimum.
409	`order_moved_on`	The deal moved on and this step no longer applies. Read it again.
409	`own_lot`	This is your own lot.
409	`price_changed`	The seller changed the price. Read the lot and try again.
409	`ticket_closed`	The ticket is closed: open a new one.
409	`too_early`	The seller still has time: wait for buyer_cancels_at.
409	`too_many_auto_buys`	You already have 100 auto-buys waiting. Call one off first.
409	`too_many_bargains`	You already have 100 prices waiting for an answer. Take one back first.
409	`too_many_tickets`	You have as many open tickets as you can.
409	`wait_for_answer`	Wait for support to answer before you write more.
422	`bad_bargain`	The lot takes no bargains, the price isn't below the lot's and within its max_discount, or a counter isn't between the buyer's price and the lot's.
422	`bad_description`	The description is longer than 32 characters, has more than one line or space at its ends.
422	`bad_discount`	The discount is outside 0 to 50 percent.
422	`bad_lot`	The list is empty, a price is outside 3 to 100000000 cents, or a filter is outside its range.
422	`bad_trade_url`	This isn't the trade link of this Steam account.
422	`one_buyer_per_offer`	The deals of one offer must all go to one buyer.
422	`too_many_lots`	More than 100 items in one request.