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server.js
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server.js
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const express = require('express')
const cors = require('cors')
const bodyParser = require('body-parser')
const neutrium = require('@neutrium/thermo.eos.iapws97')
const app = express()
app.use(cors())
app.use(bodyParser.urlencoded({ extended: false }))
app.use(bodyParser.json())
app.use(function (error, req, res, next) {
if(error instanceof SyntaxError){
return res.status(500).send({
'success': false,
'message':'Invalid Data',
'data': null,
});
} else {
next()
}
})
let EoS = new neutrium.IAPWS97_EoS()
app.post('/iapws97_PT', (req, res) => {
return callSolve(res, {p: req.body.p, t: req.body.t })
})
app.post('/iapws97_PH', (req, res) => {
return callSolve(res, {p: req.body.p, h: req.body.h })
})
app.post('/iapws97_PS', (req, res) => {
return callSolve(res, {p: req.body.p, s: req.body.s })
})
app.post('/iapws97_HS', (req, res) => {
return callSolve(res, {h: req.body.h, s: req.body.s })
})
app.use(function(req, res, next) {
res.status(501)
res.json({
'success': false,
'message':'Invalid Request',
'data': null,
})
next()
})
app.listen(3000, () => {
console.log('Server started on port 3000')
})
function callSolve(res, inputs) {
/*
var p = 3000000;
var t = 300;
var h = 1500;
var s = 3.4;
*/
try {
let solved = EoS.solve(inputs)
return res.status(200).send({
success: true,
message: '',
data: solved
})
} catch (error) {
console.log(error)
return res.status(400).send({
success: false,
message: 'Wrong params or Input valves are outside the range of the IAPWS97 correlations',
data: null
})
}
}