skill-025

name	skill-025
description	Type mapping reference for OpenAPI formats to TypeScript core types

Core Type Mapping Guide

Overview

This guide provides the mapping between OpenAPI string formats and their corresponding TypeScript type classes for use in Tasks 5, 7, 8, and 9.

🚨 Critical Usage Rules

• Task 5: Use these mappings when creating OpenAPI specifications - set the correct format field
• Task 7: Use these mappings in data transformation and validation
• Task 8 & 9: Use these mappings for type assertions in tests (e.g., instanceof Email, instanceof UUID)
• String Conversion: All types support .toString() method and template literal interpolation
• Import Sources: Import types from the specified packages, not from Node.js built-ins

AWS Types (@zerobias-org/types-amazon-js)

String Format	TypeScript Type	Usage Example
arn	Arn	toEnum(Arn, value) or new Arn(value)
awsPartition	AwsPartition	toEnum(AwsPartition, value)
awsService	AwsService	toEnum(AwsService, value)
awsImageId	AwsImageId	toEnum(AwsImageId, value)
awsAccessPolicy	AwsAccessPolicy	new AwsAccessPolicy(value)
awsAccessPolicyStatement	AwsAccessPolicyStatement	new AwsAccessPolicyStatement(value)
awsAccessPolicyStatementCondition	AwsAccessPolicyStatementCondition	new AwsAccessPolicyStatementCondition(value)
awsAccessPolicyStatementEffect	AwsAccessPolicyStatementEffect	toEnum(AwsAccessPolicyStatementEffect, value)
awsAccessPolicyStatementOperator	AwsAccessPolicyStatementOperator	toEnum(AwsAccessPolicyStatementOperator, value)

Microsoft Azure Types (@zerobias-org/types-microsoft-js)

String Format	TypeScript Type	Usage Example
azureVmSize	AzureVmSize	toEnum(AzureVmSize, value)
azureResourceProvider	AzureResourceProvider	toEnum(AzureResourceProvider, value)
azureResource	AzureResource	new AzureResource(value)
azureResourceInfo	AzureResourceInfo	new AzureResourceInfo(value)
azureResourceType	AzureResourceType	toEnum(AzureResourceType, value)
azureResourcePlan	AzureResourcePlan	new AzureResourcePlan(value)
azureResourceSku	AzureResourceSku	new AzureResourceSku(value)
azureResourceSkuTier	AzureResourceSkuTier	toEnum(AzureResourceSkuTier, value)
azureResourceIdentity	AzureResourceIdentity	new AzureResourceIdentity(value)
azureResourceIdentityType	AzureResourceIdentityType	toEnum(AzureResourceIdentityType, value)

Google Cloud Types (@zerobias-org/types-google-js)

String Format	TypeScript Type	Usage Example
gcpAccessPolicy	GcpAccessPolicy	new GcpAccessPolicy(value)
gcpAccessPolicyAuditConfig	GcpAccessPolicyAuditConfig	new GcpAccessPolicyAuditConfig(value)
gcpAccessPolicyAuditLogConfig	GcpAccessPolicyAuditLogConfig	new GcpAccessPolicyAuditLogConfig(value)
gcpAccessPolicyAuditLogConfigType	GcpAccessPolicyAuditLogConfigType	toEnum(GcpAccessPolicyAuditLogConfigType, value)
gcpAccessPolicyBinding	GcpAccessPolicyBinding	new GcpAccessPolicyBinding(value)
gcpAccessPolicyBindingCondition	GcpAccessPolicyBindingCondition	new GcpAccessPolicyBindingCondition(value)
gcpAccessPolicyVersion	GcpAccessPolicyVersion	toEnum(GcpAccessPolicyVersion, value)

Core Types (@zerobias-org/types-core-js)

Binary/Encoding

String Format	TypeScript Type	Usage Example
byte	Byte	new Byte(value)
b64	Byte	new Byte(value)
base64	Byte	new Byte(value)

Networking

String Format	TypeScript Type	Usage Example
cidr	Cidr	new Cidr(value)
ipAddress	IpAddress	new IpAddress(value)
ip	IpAddress	new IpAddress(value)
ipv4	IpAddress	new IpAddress(value)
ipv6	IpAddress	new IpAddress(value)
mac	MacAddress	new MacAddress(value)
macaddr	MacAddress	new MacAddress(value)
macAddress	MacAddress	new MacAddress(value)
hostname	Hostname	new Hostname(value)

Date/Time

String Format	TypeScript Type	Usage Example
date-time	Date	new Date(value)
time	Date	new Date(value)
timestamp	Date	new Date(value)
date	Date	new Date(value)
duration	Duration	new Duration(value)

Numeric

String Format	TypeScript Type	Usage Example
double	number	Number(value)
float	number	Number(value)
int32	number	Number(value)
int64	number	Number(value)
integer	number	Number(value)

Communication/Identity

String Format	TypeScript Type	Usage Example
email	Email	new Email(value)
phoneNumber	PhoneNumber	new PhoneNumber(value)
phone	PhoneNumber	new PhoneNumber(value)
url	URL	new URL(value)
uri	URL	new URL(value)

Identifiers

String Format	TypeScript Type	Usage Example
uuid	UUID	new UUID(value)
guid	UUID	new UUID(value)
objectId	ObjectId	new ObjectId(value)

Security

String Format	TypeScript Type	Usage Example
password	string	Direct string usage
secret	string	Direct string usage
token	string	Direct string usage
apiKey	string	Direct string usage

Geographic

String Format	TypeScript Type	Usage Example
latitude	Latitude	new Latitude(value)
longitude	Longitude	new Longitude(value)
geoPoint	GeoPoint	new GeoPoint(lat, lon)
country	Country	toEnum(Country, value)
countryCode	Country	toEnum(Country, value)
language	Language	toEnum(Language, value)
languageCode	Language	toEnum(Language, value)
currency	Currency	toEnum(Currency, value)
currencyCode	Currency	toEnum(Currency, value)

File/Media

String Format	TypeScript Type	Usage Example
mimeType	MimeType	toEnum(MimeType, value)
fileExtension	FileExtension	toEnum(FileExtension, value)
path	Path	new Path(value)
filePath	Path	new Path(value)

Business/Domain

String Format	TypeScript Type	Usage Example
ssn	Ssn	new Ssn(value)
tin	Tin	new Tin(value)
iban	Iban	new Iban(value)
creditCard	CreditCard	new CreditCard(value)
postalCode	PostalCode	new PostalCode(value)
zipCode	PostalCode	new PostalCode(value)

Complete Type Mapping Reference Table

Consolidated Quick Reference

Format	Package	Type	Constructor Pattern
uuid	@zerobias-org/types-core-js	UUID	map(UUID, value)
email	@zerobias-org/types-core-js	Email	map(Email, value)
url	@zerobias-org/types-core-js	URL	map(URL, value)
date-time	Native	Date	map(Date, value)
ipAddress	@zerobias-org/types-core-js	IpAddress	map(IpAddress, value)
phoneNumber	@zerobias-org/types-core-js	PhoneNumber	map(PhoneNumber, value)
arn	@zerobias-org/types-amazon-js	Arn	map(Arn, value)
cidr	@zerobias-org/types-core-js	Cidr	map(Cidr, value)
duration	@zerobias-org/types-core-js	Duration	map(Duration, value)
base64	@zerobias-org/types-core-js	Byte	map(Byte, value)

Usage Patterns by Task

Task 5: OpenAPI Specification

# Use format field to specify type
properties:
  id:
    type: string
    format: uuid  # → Will generate UUID type
  email:
    type: string
    format: email  # → Will generate Email type
  createdAt:
    type: string
    format: date-time  # → Will generate Date type

Task 7: Implementation (Mappers)

import { map, toEnum } from '@zerobias-org/util-hub-module-utils';
import { UUID, Email, URL } from '@zerobias-org/types-core-js';  // NEVER from Node.js!

export function toUserInfo(raw: any): UserInfo {
  return {
    id: map(UUID, raw.id),
    email: map(Email, raw.email),
    website: map(URL, raw.website_url),
    createdAt: map(Date, raw.created_at),
    status: toEnum(StatusEnum, raw.status)
  };
}

Task 8 & 9: Testing

import { UUID, Email } from '@zerobias-org/types-core-js';

it('should return user with correct types', () => {
  const user = await getUser('123');

  expect(user.id).to.be.instanceof(UUID);
  expect(user.email).to.be.instanceof(Email);
  expect(user.createdAt).to.be.instanceof(Date);
});

String Conversion Support

All custom types support string conversion:

const email = new Email('[e-mail]');

// Direct toString()
const emailString = email.toString();  // "[e-mail]"

// Template literal (automatic conversion)
const message = `User email: ${email}`;  // "User email: [e-mail]"

// JSON serialization
JSON.stringify({ email });  // {"email":"[e-mail]"}

Package Import Requirements

Required Dependencies

{
  "dependencies": {
    "@zerobias-org/types-core-js": "*",
    "@zerobias-org/util-hub-module-utils": "*"
  },
  "devDependencies": {
    "@zerobias-org/types-amazon-js": "*",  // If using AWS
    "@zerobias-org/types-microsoft-js": "*",  // If using Azure
    "@zerobias-org/types-google-js": "*"  // If using GCP
  }
}

Common Mistakes to Avoid

❌ WRONG - Using Node.js built-ins

import { URL } from 'url';  // WRONG!
import { URL } from 'node:url';  // WRONG!

✅ CORRECT - Using core types

import { URL } from '@zerobias-org/types-core-js';  // CORRECT!

❌ WRONG - Direct enum instantiation

const status = new StatusEnum('active');  // WRONG - constructor is private!

✅ CORRECT - Using toEnum

const status = toEnum(StatusEnum, 'active');  // CORRECT!

❌ WRONG - Manual type conversion

const uuid = raw.id as UUID;  // WRONG - no validation!

✅ CORRECT - Using map function

const uuid = map(UUID, raw.id);  // CORRECT - validates and converts!

Priority Rules

1. Always use core types over native JavaScript types when available
2. Import from correct package - never from Node.js built-ins
3. Use map() for type conversion - provides validation
4. Use toEnum() for enums - never instantiate directly
5. All types support .toString() - use for string conversion

String Format	TypeScript Type	Usage Example
email	Email	new Email(value)
phoneNumber	PhoneNumber	new PhoneNumber(value)
phone	PhoneNumber	new PhoneNumber(value)

Web/Protocol

String Format	TypeScript Type	Usage Example
url	URL	new URL(value)
uri	URL	new URL(value)
uuid	UUID	new UUID(value)
mimeType	MimeType	new MimeType(value)

Versioning

String Format	TypeScript Type	Usage Example
semver	Semver	new Semver(value)
versionRange	VersionRange	new VersionRange(value)

Misc

String Format	TypeScript Type	Usage Example
nmtoken	Nmtoken	new Nmtoken(value)
password	string	String(value)

Usage Patterns

Task 5: OpenAPI Specification

properties:
  email_address:
    type: string
    format: email  # Maps to Email type
  website_url:
    type: string
    format: url    # Maps to URL type
  user_id:
    type: string
    format: uuid   # Maps to UUID type

Task 7: Data Transformation

import { Email, URL, UUID } from '@zerobias-org/types-core-js';
import { map } from '@zerobias-org/util-hub-module-utils';

function mapUser(raw: any): User {
  return {
    id: map(UUID, raw.user_id),
    email: map(Email, raw.email_address),
    website: map(URL, raw.website_url)
  };
}

Task 8 & 9: Test Assertions

import { Email, URL, UUID } from '@zerobias-org/types-core-js';

// Test assertions
expect(user.id).to.be.instanceof(UUID);
expect(user.email).to.be.instanceof(Email);
expect(user.website).to.be.instanceof(URL);

String Conversion Examples

// All types support toString() and template literals
const email = new Email('[e-mail]');
const emailString = email.toString();
const message = `User email: ${email}`;

const uuid = new UUID('123e4567-e89b-12d3-a456-426614174000');
const uuidString = uuid.toString();
const log = `Processing user ${uuid}`;

Package Import Requirements

🚨 CRITICAL: Always import from the specified packages:

// Core types - ALWAYS import from @zerobias-org/types-core-js
import { URL, UUID, Email, IpAddress } from '@zerobias-org/types-core-js';

// AWS types
import { Arn, AwsService } from '@zerobias-org/types-amazon-js';

// Azure types  
import { AzureVmSize, AzureResource } from '@zerobias-org/types-microsoft-js';

// Google Cloud types
import { GcpAccessPolicy } from '@zerobias-org/types-google-js';

// NEVER import URL from Node.js built-ins
// ❌ import { URL } from 'url';  // WRONG
// ✅ import { URL } from '@zerobias-org/types-core-js';  // CORRECT

Validation and Error Handling

All typed values can be validated and will throw appropriate errors for invalid formats:

try {
  const email = new Email('invalid-email');  // Throws validation error
} catch (error) {
  // Handle validation error
}

// Safe validation with try-catch in mappers
function safeMapEmail(raw: string): Email | null {
  try {
    return new Email(raw);
  } catch {
    return null;  // Or handle as appropriate for your use case
  }
}