Monthly Forecast

POST

/bazi/monthly

• Production

Same Sheng-Ke + branch-clash analysis as yearly, but applied to a specific calendar month. Month branch resolved via mid-month jieqi.

Authorizations

• ApiKeyAuth

Code Samples

cURL

curl -X POST https://api.astroway.info/v1/bazi/monthly \
  -H "X-Api-Key: aw_live_..." \
  -H "Content-Type: application/json" \
  -d '{ "natalDate": "1990-05-15", "targetYear": 2026, "targetMonth": 6 }'

Node.js

const res = await fetch('https://api.astroway.info/v1/bazi/monthly', {
  method: 'POST',
  headers: {
    'X-Api-Key': process.env.ASTROWAY_API_KEY,
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    "natalDate": "1990-05-15",
    "targetYear": 2026,
    "targetMonth": 6
  }),
});
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/bazi/monthly',
    headers={'X-Api-Key': os.environ['ASTROWAY_API_KEY'], 'Content-Type': 'application/json'},
    json={
      'natalDate': "1990-05-15",
      'targetYear': 2026,
      'targetMonth': 6
    },
)
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('bazi/monthly', [
    'headers' => ['X-Api-Key' => getenv('ASTROWAY_API_KEY')],
    'json' => [
        'natalDate' => '1990-05-15',
        'targetYear' => 2026,
        'targetMonth' => 6,
    ],
]);
$result = json_decode($r->getBody(), true);
if (!$result['ok']) throw new \RuntimeException($result['error']['message']);
print_r($result['data']);

Request Body ^required

object

Example

{
  "natalDate": "1990-05-15",
  "targetYear": 2026,
  "targetMonth": 6
}

Responses

200

Successful calculation

object

ok

boolean

Example

true

data

object

natalDayMaster

object

targetPillar

object

pillar

string

elementFlow

object

branchInteractions

object

clashes

Array

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"
  }
}