Generate Synastry Report (PDF or HTML)

POST

/reports/synastry

• Production

Render a relationship synastry PDF: side-by-side Big Three, full cross-chart aspect table (top 40 major aspects), and per-chart + combined element/modality balance.

Authorizations

• ApiKeyAuth

Code Samples

cURL

curl -X POST https://api.astroway.info/v1/reports/synastry \
  -H "X-Api-Key: aw_live_..." \
  -H "Content-Type: application/json" \
  -d '{ "chart1": { "date": "1990-05-15", "time": "14:30:00", "timezoneOffset": 3, "latitude": 50.45, "longitude": 30.52 }, "chart2": { "date": "1985-11-03", "time": "08:15:00", "timezoneOffset": 2, "latitude": 48.46, "longitude": 35.04 }, "language": "uk" }'

Node.js

const res = await fetch('https://api.astroway.info/v1/reports/synastry', {
  method: 'POST',
  headers: {
    'X-Api-Key': process.env.ASTROWAY_API_KEY,
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    "chart1": {
      "date": "1990-05-15",
      "time": "14:30:00",
      "timezoneOffset": 3,
      "latitude": 50.45,
      "longitude": 30.52
    },
    "chart2": {
      "date": "1985-11-03",
      "time": "08:15:00",
      "timezoneOffset": 2,
      "latitude": 48.46,
      "longitude": 35.04
    },
    "language": "uk"
  }),
});
const { ok, data, error } = await res.json();
if (!ok) throw new Error(error.message);
console.log(data);

Python

import os, requests

r = requests.post(
    'https://api.astroway.info/v1/reports/synastry',
    headers={'X-Api-Key': os.environ['ASTROWAY_API_KEY'], 'Content-Type': 'application/json'},
    json={
      'chart1': {
        'date': "1990-05-15",
        'time': "14:30:00",
        'timezoneOffset': 3,
        'latitude': 50.45,
        'longitude': 30.52
      },
      'chart2': {
        'date': "1985-11-03",
        'time': "08:15:00",
        'timezoneOffset': 2,
        'latitude': 48.46,
        'longitude': 35.04
      },
      'language': "uk"
    },
)
result = r.json()
if not result['ok']:
    raise RuntimeError(result['error']['message'])
print(result['data'])

PHP

<?php
use GuzzleHttp\Client;

$client = new Client(['base_uri' => 'https://api.astroway.info/v1/']);
$r = $client->post('reports/synastry', [
    'headers' => ['X-Api-Key' => getenv('ASTROWAY_API_KEY')],
    'json' => [
        'chart1' => [
            'date' => '1990-05-15',
            'time' => '14:30:00',
            'timezoneOffset' => 3,
            'latitude' => 50.45,
            'longitude' => 30.52,
        ],
        'chart2' => [
            'date' => '1985-11-03',
            'time' => '08:15:00',
            'timezoneOffset' => 2,
            'latitude' => 48.46,
            'longitude' => 35.04,
        ],
        'language' => 'uk',
    ],
]);
$result = json_decode($r->getBody(), true);
if (!$result['ok']) throw new \RuntimeException($result['error']['message']);
print_r($result['data']);

Request Body ^required

object

chart1

required

Birth data for a single natal chart. Required: date (YYYY-MM-DD), time (HH:mm:ss). Defaults to lat/lon/tz=0 if omitted; pass real values for accurate computation.

object

date

required

string

/^\d{4}-\d{2}-\d{2}$/

time

required

string

/^\d{2}:\d{2}:\d{2}$/

timezoneOffset

number

0 nullable

latitude

number

0 nullable

longitude

number

0 nullable

houseSystem

string

default: P

name

string

""

city

string

""

zodiacType

string

Allowed values: tropical sidereal

ayanamsaId

number

nullable

cosmogram

boolean

key

additional properties

nullable

chart2

required

Birth data for a single natal chart. Required: date (YYYY-MM-DD), time (HH:mm:ss). Defaults to lat/lon/tz=0 if omitted; pass real values for accurate computation.

object

date

required

string

/^\d{4}-\d{2}-\d{2}$/

time

required

string

/^\d{2}:\d{2}:\d{2}$/

timezoneOffset

number

0 nullable

latitude

number

0 nullable

longitude

number

0 nullable

houseSystem

string

default: P

name

string

""

city

string

""

zodiacType

string

Allowed values: tropical sidereal

ayanamsaId

number

nullable

cosmogram

boolean

key

additional properties

nullable

language

string

Allowed values: uk en de ru pl es pt hi fr ko it ja id tr nl ro cs vi ar el hu

whitelabel

boolean

Example

{
  "chart1": {
    "date": "1990-05-15",
    "time": "14:30:00",
    "timezoneOffset": 3,
    "latitude": 50.45,
    "longitude": 30.52
  },
  "chart2": {
    "date": "1985-11-03",
    "time": "08:15:00",
    "timezoneOffset": 2,
    "latitude": 48.46,
    "longitude": 35.04
  },
  "language": "uk"
}

Responses

200

Successful calculation

object

ok

boolean

Example

true

data

object

url

string

storage_key

string

byte_length

number

page_count

number

duration_ms

number

expires_at

string

Example

{
  "ok": true,
  "data": {
    "url": "https://api.astroway.info/reports/abc-synastry.pdf",
    "storage_key": "reports/abc-synastry.pdf",
    "byte_length": 138000,
    "page_count": 2,
    "duration_ms": 5800,
    "expires_at": "2026-05-09T07:00:00Z"
  }
}

400

Validation error

Example

{
  "ok": false,
  "error": {
    "code": "INVALID_INPUT",
    "message": "Validation failed: date: Date must be YYYY-MM-DD",
    "details": [
      {
        "path": "date",
        "message": "Date must be YYYY-MM-DD"
      }
    ]
  }
}

401

Missing or invalid API key

Example

{
  "ok": false,
  "error": {
    "code": "INVALID_API_KEY",
    "message": "Invalid API key"
  }
}