# Prashna: number to sign

`POST https://api.astroway.info/v1/vedic/prashna/number`

A querent's number read as a sign. `system` navamsa108 (default): 1-108 as the navamsas from 0 Aries, the sign and its navamsa. ashtamangala: the three-digit Prasna Marga number (digits 1-8) with each digit's planet and parity and the tithi, nakshatra, weekday, rasi and bhuta from its remainders. Numbers above 108 point at /vedic/kp/horary (KP 1-249).

Group: Vedic. Auth: `X-Api-Key` header. Operation ID: `vedic_prashna_number`.

## Parameters

| Name | In | Required | Type | Description |
|---|---|---|---|---|
| `fields` | query | no | string | Comma-separated dotted paths, relative to `data`, to keep in the response. A path is applied to every element of an array, so `planets.name` means the name of each planet. Paths that match nothing come back in `_fields_unmatched`; a list where nothing matches at all is a 400, because an empty object would be a confident wrong answer. |
| `precision` | query | no | integer | Round every non-integer number in the response to this many decimal places. Integers are left alone, because an id is not a measurement. Ecliptic longitudes ship with fourteen decimals by default; 2 is about a tenth of an arcminute. |
| `Idempotency-Key` | header | no | string | Unique per logical operation, kept across retries. For 24 hours from the first request, a repeat with the same key, method, path, body and query string returns the stored response with `Idempotent-Replayed: true` and costs 0 credits. The same key with a different body or query string is a 409 `IDEMPOTENCY_KEY_REUSED`; a repeat while the first is still running is a 409 `IDEMPOTENCY_IN_PROGRESS`. Only 2xx responses are kept. See /idempotency/. |

## Request body

| Field | Type | Required | Description |
|---|---|---|---|
| `system` | "navamsa108" \| "ashtamangala" | no | navamsa108 (default): a number 1-108 read as the navamsas of the zodiac from 0 Aries. ashtamangala: the three-digit Prasna Marga number, each digit 1-8. KP numbers 1-249 are /v1/vedic/kp/horary. |
| `number` | integer | yes |  |

```json
{
  "system": "navamsa108",
  "number": 45
}
```

## Responses

| Status | Meaning |
|---|---|
| 200 | Successful calculation |
| 400 | Validation error |
| 401 | Missing or invalid API key |

### Success fields, under `data`

| Field | Type | Required | Description |
|---|---|---|---|
| `system` | string | no |  |
| `number` | number | no |  |
| `sign` | number | no |  |
| `signName` | string | no |  |
| `navamsaInSign` | number | no |  |
| `navamsaSign` | number | no |  |
| `navamsaSignName` | string | no |  |
| `span` | object | no |  |
| `span.start` | number | no |  |
| `span.end` | number | no |  |
| `arudha` | string | no |  |
| `kpNumbers` | string | no |  |
| `sources` | object | no |  |
| `sources.navamsa108` | object | no |  |

## Example

```bash
curl -X POST https://api.astroway.info/v1/vedic/prashna/number \
  -H "X-Api-Key: aw_live_..." \
  -H "Content-Type: application/json" \
  -d '{ "system": "navamsa108", "number": 45 }'
```

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Rendered from https://api.astroway.info/v1/openapi.json. HTML page: https://api.astroway.info/docs/api/operations/vedic_prashna_number/