| parameter | whether | explain |
|---|---|---|
| depositCoinCode | Yes | eg：ETH When this field has values, fromChainId and fromTokenAddress do not need to be filled in |
| fromChainId | When there are values for 'fromChainId' and 'fromTokenAddress', there is no need to fill in 'depositCoinCode' | eg：1 Fill in the chain ID here。 |
| fromTokenAddress | When there are values for 'fromChainId' and 'fromTokenAddress', there is no need to fill in 'depositCoinCode' | eg：0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee。 Please fill in the currency contract address here. If it is the main currency of the chain, please fill in '0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee' |
| receiveCoinCode | Yes | eg：BTC When this field has values,'toChainId' and 'toTokenAddress' do not need to be filled in |
| toChainId | When there are values for 'toChainId' and 'toTokenAddress', there is no need to fill in 'receiveCoinCode' | eg: 56 Fill in the chain ID here。 |
| toTokenAddress | When there are values for 'toChainId' and 'toTokenAddress', there is no need to fill in 'receiveCoinCode' | eg: 0x55d398326f99059ff775485246999027b3197955 Please fill in the currency contract address here. If it is the main currency of the chain, please fill in '0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee' |
| depositCoinAmt | Yes | eg：0.01 |
| receiveCoinAmr | Yes | Expected acceptance |
| destinationAddr | Yes | "Eg: 18orDLFMp3fGoy5Uk93LDGTGbxWEm7b7FY If there are memos, please separate them with # after placing them in the address, for example: 18orDLFMp3fGoy5Uk93LDGTGbxWEm7b7FY # 1927632" |
| refundAddr | Yes | "Eg: 18orDLFMp3fGoy5Uk93LDGTGbxWEm7b7FY If there are memos, please tell them to put them in the address and separate them with #, for example: 18orDLFMp3fGoy5Uk93LDGTGbxWEm7b7FY # 1927632" |
| equipmentNo | Yes | Device Unique ID (Serial Number). If unavailable, please fill in the coin refund address. This field is required when querying order status or order history, and must correspond to the current query. |
| sourceType | Yes | Enter only ANDROID, IOS, or H5, depending on your application. This field is utilized in the query order status and query order records interfaces. |
| sourceFlag | Yes | It is used to identify which platform created the order. It needs to be set through negotiation with us |
| slippage | No | slippage (System default is 0.05) Decimal number 0.01 = 1% |
| fixedRate | No | Place order using fixed exchange rate (the received quantity will not change after placing the order) (Y/N) |
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New equipment manual number (reference), Lang language: CN, EN
| ### **Request Parameter Precautions** | Parameter | Explanation | | -------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | depositCoinAmt | After users create an order, must send depositCoinAmt to the order address. | | receiveCoinAmt | `receiveCoinAmt = depositCoinAmt * instantRate` the rate is obtained through the getBaseInfo port, this value is used to record the market price when the order is submitted, precision is maintained to 6 decimal places | | equipmentNo | Environment number, this can be used to check numbers associted with all of the order's information, please do not disclose | | sourceFlag | Used to indicate which platform's order, the paramater isn't necesary the same sources originally indicated after the project's product comes online | | developerId | Used to record the project's related order data, the project can use this paramater to express what the order is part of a particular user or is used to record its own system's order number, or another record number serial number; after the order is created, the parameter value will be returned (SWFT does not support checking order information through this paramater) | #### 6.Postman example 