'bybit api spot order create nodejs

I'm using bybit api to create an order on the spot market in nodejs. i tried the below code:

var params = {
    api_key: api['key'],
    qty: 30,
    symbol: "EOSUSDT",
    timeInForce: this.bybit_enums["spot"]["time_in_force"]["GTC"],
    timestamp: expires,
    orderType: this.bybit_enums["spot"]["order_type"]["MARKET"],
};

var sign = getSignature(params, api['secret']);
params['sign'] = sign
const result = await axios({method: "post", url: "https://api-testnet.bybit.com/spot/v1/order", data: params});

but it doesn't work and responses me with: "Missing required parameter 'symbol'" which i have in the params. thanks.

based on this: https://bybit-exchange.github.io/docs/testnet/spot/#t-spotordercreate

node.jsapiaxios


Solution 1:[1]

You'll have to use "Content-Type": "application/x-www-form-urlencoded" for this API.

const postParams = new URLSearchParams();
for (const [key, value] of Object.entries(params)) {
  postParams.append(key, value.toString());
}
postParams.append("sign", sign);

const result = await axios.post(
  'https://api-testnet.bybit.com/spot/v1/order',
  postParams,
  {
    headers: {
      "Content-Type": "application/x-www-form-urlencoded",
    },
  }
);

Solution 2:[2]

The first answer is right, the header is required, but when signing, the order of the parameters in the query string matters as well. For the full explanation refer to this post Sign error for bybit using c# when sending post request, specifically these 2 answers https://stackoverflow.com/a/70186674/10253105, https://stackoverflow.com/a/72035877/10253105

Though the question is for C#, the answers are for JS

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Yau Don
Solution 2 David

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