Dubnium has built-in Express middleware functions to manage Records. Data is never sent to the client without your permission.
Parameters
If tag.key or content.key is omitted, the from value is used.
Parameter
About
Type
Required
tag
First param to set tag info.
Object
tag.from
Part of the req object to get the tag from (e.g. headers or body)
String
tag.key
Key from the from object to get tag from.
String
content
Second param to set content info
Object
content.from
Part of the req object to get the content from (e.g. headers or body)
String
content.key
Key from the from object to get tag from.
String
Methods
Create
app.get('/new', db.middleware.create({ from:"query", key:"tag" }, { from:"query", key:"content" }), (req, res) => {
// Creates a record with the tag and content from the query
})
Get
app.get('/:tag', db.middleware.get({ from:"params", key:"tag" }), (req, res) => {
// Access the record directly from req.record, if it exists
})
DB
app.get('/db', db.middleware.db(), (req, res) => {
// Access the database directly from req.db
})
app.get('/', db.middleware.other('function', ...args), (req, res) => {
res.send(`Ran ${req.db.function} with args ${req.db.args}`)
// req.db['function'] is the requested function
// req.db.function is the name of the requested function
// req.db.args is the requested args
// req.db.result is the result of the function
})
Full Example
middleware.js
const { Dubnium } = require('./v3')
const express = require('express')
const app = express()
const db = new Dubnium('./test_db', 'txt')
const c_m = db.middleware.create({ from:"query", key:"tag" }, { from:"query", key:"content" })
const g_m = db.middleware.get({ from:"params", key:"tag" })
const db_m = db.middleware.db()
app.get('/new', c_m, (req, res) => {
// Creates a record with the tag and content from the query
})
app.get('/:tag', g_m, (req, res) => {
// Access the record directly from req.record, if it exists
})
app.get('/db', db_m, (req, res) => {
// Access the database directly from req.db
})
app.listen(3000, () => {
console.log('Example app listening on port 3000!')
})
