Astrology API TypeScript SDK

Type-safe Node.js client for the Astrology API v3.0.0. The package ships as an ESM build, exposes a modular architecture with dedicated sub-clients per endpoint family, and enforces 100 % test coverage. Publish-ready as @procoders/astrology-api-client.

Highlights

• Axios-powered HTTP layer with retry/backoff, header normalization, and response unwrapping
• Strong TypeScript types generated from the local OpenAPI spec (docs-openapi.json)
• Exhaustive runtime validation via src/utils/validators.ts to prevent invalid API calls
• Rich category coverage: data, charts, horoscopes, analysis, astrocartography, insights, SVG, enhanced traditional analytics, and more
• Debug-friendly logging pipeline with configurable logger and opt-in verbosity

Installation

npm install @procoders/astrology-api-client

Usage

ES Modules

import { AstrologyClient } from '@procoders/astrology-api-client';

CommonJS

const { AstrologyClient } = require('@procoders/astrology-api-client');

Environment Variables

Variable	Required	Description
ASTROLOGY_API_BASE_URL	optional	Override for the default https://api.astrology-api.io endpoint
ASTROLOGY_DEBUG	optional	Set to true to enable debug logging
RUN_ASTROLOGY_EXAMPLE	optional	Set to true to execute examples/usage.ts

Client Architecture

import { AstrologyClient } from '@procoders/astrology-api-client';

const client = new AstrologyClient({
  apiKey: 'your-api-key-here', // optional for public endpoints
  baseUrl: process.env.ASTROLOGY_API_BASE_URL ?? 'https://api.astrology-api.io',
  retry: { attempts: 2, delayMs: 250 },
  debug: process.env.ASTROLOGY_DEBUG === 'true',
});

// Category sub-clients
client.data.getPositions(...);
client.charts.getNatalChart(...);
client.analysis.getNatalReport(...);
client.horoscope.getPersonalDailyHoroscope(...);
client.insights.relationship.getCompatibility(...);
client.svg.getNatalChartSvg(...);
client.enhanced.getGlobalAnalysis(...);

Sub-client	Path prefix	Sample methods
data	/api/v3/data	getPositions, getGlobalPositions, getLunarMetrics
charts	/api/v3/charts	getNatalChart, getTransitChart, getSolarReturnChart
horoscope	/api/v3/horoscope	getPersonalDailyHoroscope, getSignWeeklyHoroscopeText
analysis	/api/v3/analysis	getSynastryReport, getCompatibilityAnalysis, getProgressionReport
glossary	/api/v3/glossary	getCities, getActivePoints, getHouseSystems
astrocartography	/api/v3/astrocartography	getLines, getMap, getRelocationChart
chinese	/api/v3/chinese	getBaZi, getYearlyForecast, getCompatibility
eclipses	/api/v3/eclipses	getUpcoming, getNatalCheck, getInterpretation
lunar	/api/v3/lunar	getCalendar, getPhases, getVoidOfCourse
numerology	/api/v3/numerology	getCoreNumbers, getComprehensiveReport, getCompatibility
tarot	/api/v3/tarot	drawCards, getTreeOfLife, getTimingAnalysis
traditional	/api/v3/traditional	getAnalysis, getAnnualProfection, getLots
fixedStars	/api/v3/fixed-stars	getPositions, getConjunctions, getReport
insights	/api/v3/insights	relationship/pet/wellness/financial/business suites
svg	/api/v3/svg	getNatalChartSvg, getSynastryChartSvg, getTransitChartSvg
enhanced	/api/v3/enhanced*	getGlobalAnalysis, getPersonalAnalysis, chart variants

Each category client inherits from a shared base that enforces the API prefix contract and provides a consistent buildUrl helper, so request construction stays uniform across the SDK.

Category Examples

// Data: planetary positions
const subject = {
  name: 'Demo User',
  birth_data: {
    year: 1990,
    month: 5,
    day: 11,
    hour: 18,
    minute: 15,
    city: 'London',
    country_code: 'GB',
  },
};
const subjectA = subject;
const subjectB = { ...subject, name: 'Partner' };

const positions = await client.data.getPositions({ subject });

// Charts: natal chart SVG export
const natalSvg = await client.svg.getNatalChartSvg({ subject, svg_options: { theme: 'dark' } });

// Analysis: synastry report
const synastry = await client.analysis.getSynastryReport({ subject1: subjectA, subject2: subjectB });

// Horoscope: personalized daily forecast
const daily = await client.horoscope.getPersonalDailyHoroscope({ subject });

// Insights: relationship compatibility
const compatibility = await client.insights.relationship.getCompatibility({ subjects: [subjectA, subjectB] });

// Enhanced: global traditional analysis
const global = await client.enhanced.getGlobalAnalysis({
  options: { house_system: 'W', zodiac_type: 'Tropic', active_points: ['Sun', 'Moon', 'Mercury'], precision: 3 },
  orbs: { major_aspects_deg: 2 },
});

See examples/usage.ts for a full script that conditionally runs when RUN_ASTROLOGY_EXAMPLE=true.

Debug Logging

Pass debug: true and optionally supply a custom logger function. Setting ASTROLOGY_DEBUG=true enables the same behaviour globally. The client logs request metadata, retry attempts, and responses (status and url).

Testing & Linting

npm run lint            # ESLint with @typescript-eslint + Prettier
npm run test            # Vitest watch mode
npm run test:coverage   # Vitest with V8 coverage (enforced at 100 %)
npm run build           # tsup build emitting ESM (.js) + CJS (.cjs)

Project Structure

├── src/
│   ├── categories/              # Modular sub-clients per API family
│   ├── client.ts                # Root client wiring sub-clients & interceptors
│   ├── errors/AstrologyError.ts # Custom error hierarchy
│   ├── types/                   # Generated and hand-written typings
│   └── utils/validators.ts      # Runtime payload guards
├── tests/unit/                  # Vitest suites with axios-mock-adapter
├── examples/usage.ts            # Usage example (guarded by env flag)
├── docs-openapi.json            # Cached OpenAPI specification
└── README.md

Publishing Checklist

1. Ensure npm run test:coverage passes with 100 % coverage.
2. Run npm run build and review the emitted dist/ bundle.
3. Update version, changelog, and documentation as needed.

License

Released under the MIT License. See LICENSE for details.