In-Memory-db for json data in nodejs (javascript or typescript ) application
install jsonb-cli then type
jsonb install
or
npm install jsonb-db
import json-db module in a project and instatiate JsonbDb class with db name as parameter
const {JsonbDb} = require("jsonb-db");
const db=new JsonbDb({db:"databaseName"}) ;
Get list of avalable collections in Db
db.collections()
Create empty collection
db.createCollection("collectionName")
create collection with data
db.createCollection("collectionName",data)
rename collection
db.updateCollection("oldcollectionName","oldcollectionName")
delete collection
db.dropCollection("collectionName")
fetch data from selected collection based on search criteria NOTE leave criteria empty if you want to search all data
db.collection("collectionName").find(criteria)
skip numbers of rows while retrieving data
db.collection("collectionName").find(criteria).skip(rowcount)
limit number of output rows
db.collection("collectionName").find(criteria).take(rowcount)
db.collection("collectionName").find(criteria).query fetch data in readable json format
fetch data and output in nice look json format
db.collection("collectionName").find(criteria).pretty()
fetch total number of output can be retrieved for provided criteria
db.collection("collectionName").find(criteria).count()
fetch data and output in tabular form
db.collection("collectionName").find(criteria).table()
Convert response to object
db.collection("collectionName").find(criteria).toObject
insert object into a collection, new collection will be created if not exist
db.collection("collectionName").insert(value)
insert many object into a collection, new collection will be created if not existed
db.collection("collectionName").insertMany(values)
delete items inside a collection based on search criteria
db.collection("collectionName").remove(criteria)
update items in a collection based on search criteria
db.collection("collectionName").update(criteria,value)