|
| 1 | +const debug = require('debug')('tutorial:farm'); |
| 2 | +const monitor = require('../../lib/monitoring'); |
| 3 | +const ngsiLD = require('../../lib/ngsi-ld'); |
| 4 | +const Context = process.env.IOTA_JSON_LD_CONTEXT || 'http://context/ngsi-context.jsonld'; |
| 5 | +const LinkHeader = '<' + Context + '>; rel="http://www.w3.org/ns/json-ld#context"; type="application/ld+json">'; |
| 6 | + |
| 7 | +async function displayAgriFarm(req, res) { |
| 8 | + debug('displayAgriFarm'); |
| 9 | + // If the user is not authorized, display the main page. |
| 10 | + if (!res.locals.authorized) { |
| 11 | + req.flash('error', 'Access Denied'); |
| 12 | + return res.redirect('/'); |
| 13 | + } |
| 14 | + try { |
| 15 | + monitor('NGSI', 'readEntity ' + req.params.id); |
| 16 | + const farm = await ngsiLD.readEntity( |
| 17 | + req.params.id, |
| 18 | + { options: 'keyValues' }, |
| 19 | + ngsiLD.setHeaders(req.session.access_token, LinkHeader) |
| 20 | + ); |
| 21 | + return res.render('agri-farm', { title: farm.name, farm }); |
| 22 | + } catch (error) { |
| 23 | + const errorDetail = error.error | error; |
| 24 | + debug(errorDetail); |
| 25 | + // If no farm has been found, display an error screen |
| 26 | + return res.render('error', { |
| 27 | + title: `Error: ${errorDetail.title}`, |
| 28 | + message: errorDetail.detail, |
| 29 | + error: { |
| 30 | + stack: errorDetail.title |
| 31 | + } |
| 32 | + }); |
| 33 | + } |
| 34 | +} |
| 35 | + |
| 36 | +module.exports = { |
| 37 | + display: displayAgriFarm |
| 38 | +}; |
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