I like my data how I like my turkeys. Stuffd. 🦃
Create lots of random data, nested or relational (or both) and do whatever you want with it. Output the JSON, manipulate it in TS/JS land, or pipe each object into your database (both objectMode and standard stream suppported)!
cosnt{Stuffd,Context}=require('stuffd');// Create Typescript-like enums with explicit integers!constModuleType=Stuffd.createEnum({SleepingQuarters:0,DiningRoom:1,RecRoom:2,Agricultural:3,MedicalBay:4,Engineering:5,FitnessCenter:6,ResearchStation:7,NavigationStation:8,WeaponsBay:9,ShieldRoom:10,CargoBay:11});// Create Typescript-like enums with implicit integers!constModuleSize=Stuffd.createEnum(['Small','Medium','Large']);// Create custom, re-usable attributes!constpersonName=(c)=>`${c.first()}${c.last()}`;constManufacturer=Stuffd.create('Manufacturer').key('id',id=>id.guid()).prop('name',n=>n.pick(['Rocketdyne','Areojet','Boeing','Lockheed','SpaceX','Kerbal'])).prop('operatingSince',os=>os.date(newDate('01/01/1950'),newDate())).prop('ceo',c=>c.custom(c=>`${c.first()}${c.last()}`)).prop('founder',f=>f.custom(personName)).build();constEngine=Stuffd.create('Engine').prop('model',m=>m.str(/[A-Z]{1,3}-\d{1,3}[DXS]{0,1}/)).prop('year',y=>y.integer(1967,2020)).prop('thrust',t=>t.float(1,5,12)).prop('mass',m=>m.float(3,200,2000)).prop('manufacturer',m=>m.type(Manufacturer)).toString(function(){return`${this.manufacturer.name}${this.model} (${this.year})`;}).build();constModule=Stuffd.create('Module').prop('type',t=>t.enum(ModuleType,String)).prop('size',s=>s.enum(ModuleSize,Number)).prop('operational',op=>op.bool(3/4)).prop('mass',m=>m.float(3,200,5000)).toString(function(){return`[${ModuleSize[this.size]}]${this.type}${this.operational ?'' :' (undergoing maintenance)'}`;}).build();constSpaceship=Stuffd.create('Spaceship').prop('name',n=>n.str(/((Ares|Athena|Hermes|Icarus|Jupiter|Odyssey|Orion|Daedalus|Falcon|[A-Z]Wing)[XXIIVVCD]{2,3})/)).prop('captain',m=>m.custom(personName)).prop('primaryEngines',pe=>pe.type(Engine)).prop('primaryEngineCount',pec=>pec.integer(1,5)).prop('secondaryEngines',se=>se.type(Engine)).prop('secondaryEngineCount',sec=>sec.integer(0,20)).prop('modules',m=>m.list(Module,3,8)).prop('hullMass',m=>m.float(3,5000,20000)).getter('totalThrust',function(){lettotal=(this.primaryEngines.thrust*this.primaryEngineCount)+(this.secondaryEngines.thrust*this.secondaryEngineCount);returnMath.round(total*10)/10;}).getter('totalMass',function(){lettotal=this.hullMass;total+=this.primaryEngines.mass*this.primaryEngineCount;total+=this.secondaryEngines.mass*this.secondaryEngineCount;this.modules.forEach((m)=>total+=m.mass);returnMath.round(total);}).toString(function(){letstr=[this.name+':'];str.push(` Crew:`);str.push(`${this.captain}`);str.push(` Engines:`);str.push(`${this.primaryEngineCount}x${this.primaryEngines}`);if(this.secondaryEngineCount>0)str.push(`${this.secondaryEngineCount}x${this.secondaryEngines}`);str.push(` Modules:`);str.push(' '+this.modules.map((m)=>m.toString()).join(EOL+' '));str.push(` Stats:`);str.push(` Total Thrust:${this.totalThrust} tons`);str.push(` Total Mass:${this.totalMass} kg`);returnstr.join(EOL);}).build();// Optionally provide a seed (same seed + same operations = same result)constctx=newContext(2187);constfleet=ctx.create(Spaceship,3);console.log(fleet.map(ship=>ship.toString()).join(''));// Prints out ALL the ship details...import{Stuffd,Context}from'stuffd';import{Key,Guid,Custom,Range,Str,Ref,Integer,Float}from'stuffd/decorators';@Stuffd()classStudent{ @Key() @Guid()id:string; @Custom(c=>`${c.first()}${c.last()}`)name:string; @Range(newDate('01/01/1950'),newDate('12/31/2010'))dateOfBirth:Date; @Str(/\(\d{3}\)\d{3}-\d{4}/)phone:string;}@Stuffd()classTeacher{ @Key() @Guid()id:string; @Custom(c=>`${c.first()}${c.last()}`)name:string;}@Stuffd()classClass{ @Str(/[A-Z]{2}-\d{4}-[a-e]/)id:string; @Ref(Teacher)teacherId:string; @Integer(1,9)period:number;}@Stuffd()classGrade{ @Ref(Student)studentId:string; @Ref(Class,'id')classId:string; @Float(1,60,100)grade:number;}constctx=newContext(246);// Create array of 50 students...conststudents=ctx.create(Student,50);// [...]constteachers=ctx.create(Teacher,3);// [...]// Create array of 5 classes referencing a teacher's id from the 3 in that list...constclasses=ctx.using({'teacherId':teachers}).create(Class,5);// [...]// Create array of grades, using the 3 classes above for the classId and making one for each student.constgrades=ctx.using({'classId':classes}).cross({'studentId':students}).create(Grade);// [...]constisStudent=students[0]instanceofStudent;// true// Get an object with all the instances created...constallData=ctx.data();// { "Student": [...], "Teacher": [...], etc. }constallJson=ctx.json(true);// Formatted// '{ "Student": [...], "Teacher": [...], etc. }'// Pipe the data somewhere!ctx.stream().pipe(myDbInserter);// { "type": "Student", "value": { ... }}// Pipe the JSON somewhere!ctx.stream().pipe(myFileInserter);// (same as above but 1 per line)
