import requests
import json

url = "https://api.swep.net/calculateSinglePhase"

payload = json.dumps({
  "inputs": {
    "calculationMethod": "Design",
    "selectedFluidSide1": {
      "fluidId": 53,
      "isGas": False,
      "inputValue": None
    },
    "selectedFluidSide2": {
      "fluidId": 53,
      "isGas": False,
      "inputValue": None
    },
    "coCurrent": False,
    "selectedHeatExchangers": [
      {
        "heatExchangerInputType": "Parent",
        "id": 1
      }
    ],
    "heatLoad": {
      "amount": 1500,
      "unit": "HeatLoadUnit.Kilowatt"
    },
    "inletTemperatureSide1": {
      "amount": 80,
      "unit": "TemperatureUnit.DegreeCelsius"
    },
    "inletTemperatureSide2": {
      "amount": 20,
      "unit": "TemperatureUnit.DegreeCelsius"
    },
    "outletTemperatureSide1": {
      "amount": 40,
      "unit": "TemperatureUnit.DegreeCelsius"
    },
    "outletTemperatureSide2": {
      "amount": 50,
      "unit": "TemperatureUnit.DegreeCelsius"
    },
    "flowSide1": None,
    "flowSide2": None,
    "maxPressureDropSide1": {
      "amount": 20000,
      "unit": "PressureUnit.Pascal"
    },
    "maxPressureDropSide2": {
      "amount": 20000,
      "unit": "PressureUnit.Pascal"
    },
    "numberOfPasses": None,
    "numberOfPlates": None,
    "numberOfPlatesStack1": None,
    "numberOfPlatesStack2": None,
    "oversurface": None,
    "portSwitch": True,
    "autoperformance": False
  }
})
headers = {
  'X-API-KEY': '2b26ba08333ea08a5763a81ccd993213082bda45fdebba1240b270e24e29834058433a880ed1f9a5dcebc4f40f2f698a',
  'Content-Type': 'application/json'
}

response = requests.request("POST", url, headers=headers, data=payload)

print(response.text)