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webhook.js
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webhook.js
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const express = require('express');
const bodyParser = require('body-parser');
require('dotenv').config({ path: './.env' });
const doc = require('./utils/document');
const app = express();
const port = parseInt(process.env.PORT, 10) || 3000;
const our_bank_acc = process.env.BANK_ACC || '150342342340';
const trycatch = fn => data => {
try { return fn(data); } catch (e) { return doc.createMessage('error', 'Something went wrong ' + e); }
};
const floatValue = v => parseFloat( v.normalized_value );
const validate = trycatch(payload => {
const { content } = payload.annotation;
const schemaIds = [ 'amount_total_tax', 'tax_detail_tax', 'account_num' ];
const data = doc.extract( content, schemaIds );
const amount = data.values('amount_total_tax')
.map( floatValue )
.reduce( (res, dp) => res + dp, 0 );
const detailSum = data.values('tax_detail_tax')
.map( floatValue )
.reduce( (res, dp) => res + dp, 0 );
const messages = [];
if( amount !== detailSum ) {
messages.push(doc.createMessage( 'warning', 'Tax checksum failed', data.idOf('amount_total_tax')));
}
const accCheck = data.verify(['account_num'], 'Missing');
if( accCheck.length > 0 ) {
messages.push(accCheck);
} else {
const accountNum = data.firstValue('account_num');
if (accountNum !== our_bank_acc) {
messages.push(doc.createMessage('error', 'Bank account mismatch', data.idOf('account_num')));
}
}
return messages;
});
app.use(bodyParser.json());
app.post('/check_vat_amounts', (request, response) => {
const validationResult = validate( request.body );
response.json( { messages: validationResult } );
});
app.listen(port, () => {
// eslint-disable-next-line no-console
console.log(`> Ready on port: ${port}`);
});
module.exports = app;