MEXC Swap, Error Code: 7002

When trying to create a swap order on MEXC Global exchange, I’m facing an issue where im getting this error code: 7002, with the message “Position mode mis match”

const exchange = new ccxt['mexc']({
  apiKey,
  secret,
});
exchange.options.defaultType = 'swap';
await exchange.createOrder('XRP_USDT', 5, 3, 10, undefined, {
openType: 1, leverage: 15,
})

This is Error Output

{"success":false,"code":7002,"message":"Position mode mis match"} {"name":"ExchangeError","stack":"ExchangeError: mexc {\"success\":false,\"code\":7002,\"message\":\"Position mode mis match\"}\n    at mexc.handleErrors (C:\\Users\\fahad.Hussain\\VS Code Projects\\binance-scraper-bot\\backend\\node_modules\\ccxt\\js\\mexc.js:2316:19)\n    at C:\\Users\\fahad.Hussain\\VS Code Projects\\binance-scraper-bot\\backend\\node_modules\\ccxt\\js\\base\\Exchange.js:716:51\n    at processTicksAndRejections (internal/process/task_queues.js:93:5)\n    at async timeout (C:\\Users\\fahad.Hussain\\VS Code Projects\\binance-scraper-bot\\backend\\node_modules\\ccxt\\js\\base\\functions\\time.js:203:20)\n    at async mexc.createSwapOrder (C:\\Users\\fahad.Hussain\\VS Code Projects\\binance-scraper-bot\\backend\\node_modules\\ccxt\\js\\mexc.js:1820:26)\n    at async mexc.createOrder (C:\\Users\\fahad.Hussain\\VS Code Projects\\binance-scraper-bot\\backend\\node_modules\\ccxt\\js\\mexc.js:1721:20)\n    at async placeOrder (C:\\Users\\fahad.Hussain\\VS Code Projects\\binance-scraper-bot\\backend\\src\\services\\exchange.service.js:121:19)\n    at async Trader.buy (C:\\Users\\fahad.Hussain\\VS Code Projects\\binance-scraper-bot\\backend\\src\\services\\scraper.service.js:218:27)","timestamp":"2022-03-23 23:56:23"}

This is Verbose output

fetch Request:
 mexc POST https://contract.mexc.com/api/v1/private/order/submit
RequestHeaders:
 {
  ApiKey: 'apiKey',
  'Request-Time': '1648065383488',
  'Content-Type': 'application/json',
  Signature: 'signature'
}
RequestBody:
 {"symbol":"XRP_USDT","vol":10,"side":3,"type":5,"openType":1,"leverage":15}

handleRestResponse:
 mexc POST https://contract.mexc.com/api/v1/private/order/submit 200 OK
ResponseHeaders:
 {
  'Cache-Control': 'max-age=0, no-cache, no-store',
  Connection: 'keep-alive',
  'Content-Encoding': 'gzip',
  'Content-Length': '88',
  'Content-Type': 'application/json',
  Date: 'Wed, 23 Mar 2022 19:56:23 GMT',
  Expires: 'Wed, 23 Mar 2022 19:56:23 GMT',
  Pragma: 'no-cache',
  'Server-Timing': 'cdn-cache; desc=MISS, edge; dur=296, origin; dur=37',
  Vary: 'Accept-Encoding'
}
ResponseBody:
 {"success":false,"code":7002,"message":"Position mode mis match"}

Could you please help out with this bug?

[Dan-krm]

Could you please help out with this bug?

I’ve opened a PR that should fix the issue you’re having with createOrder. For mexc you can also call createSwapOrder directly instead of createOrder and it should work properly in the meantime.

[fahad-here]

Hey @Dan-krm, thanks for the heads up. But it looks like it was due to the position mode on MEXC Global itself.

As you can see in the picture attached. When selecting the ‘One-way Mode’ it was giving me the position mismatch error. When I switched to the Hedged mode, it all worked smoothly.