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A helper toolset for building HAL API with express
Features:
_listMeta
when returning arrays of objectsThis is a basis for further concrete implementations such as:
const {AbstractItemHalifier} = require('halifier')
const data = [
{pass: 'ZK872343', name: 'John', eyeColor: 'blue', weight: 70},
{pass: 'ANK34323', name: 'Marry', eyeColor: 'brown', weight: 65},
{pass: 'LP109929', name: 'T1000', eyeColor: 'red', weight: 128}
]
const app = require('express')()
const peopleHalifier = new AbstractItemHalifier(app, {
idFieldName: 'pass',
baseUrl: '/humans',
name: 'human',
listMeta: {
limit: 2 // number of returned objects in one response
}
})
app.get('/humans/:pass', (req, res) => {
const found = data.filter(human => human.pass === req.params.pass)
if (found.length) {
peopleHalifier.halifyItem(found[0])
.then(result => res.json(result))
} else {
res.sendStatus(404)
}
})
app.get('/humans', (req, res) => {
// make a prototype of the response
const responseProto = peopleHalifier.makeProtoFromReq(req)
// provide actual list metadata
responseProto._listMeta.stats = {
total: data.length,
// we want to return only first 2 records,
// the other ones should be accessible via pagination
returned: 2
}
peopleHalifier.halifyList(data.slice(2), responseProto)
.then(result => res.json(result))
})
app.listen(3000)
FAQs
helper toolset for building HAL API with express
We found that halifier demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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