curl --request POST \
  --url https://app.nex.ai/api/developers/v1/relationships \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "type": "one_to_many",
  "entity_definition_1_id": "123",
  "entity_definition_2_id": "456",
  "entity_1_to_2_predicate": "has",
  "entity_2_to_1_predicate": "belongs to"
}
'

import requests

url = "https://app.nex.ai/api/developers/v1/relationships"

payload = {
    "type": "one_to_many",
    "entity_definition_1_id": "123",
    "entity_definition_2_id": "456",
    "entity_1_to_2_predicate": "has",
    "entity_2_to_1_predicate": "belongs to"
}
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    type: 'one_to_many',
    entity_definition_1_id: '123',
    entity_definition_2_id: '456',
    entity_1_to_2_predicate: 'has',
    entity_2_to_1_predicate: 'belongs to'
  })
};

fetch('https://app.nex.ai/api/developers/v1/relationships', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://app.nex.ai/api/developers/v1/relationships"

	payload := strings.NewReader("{\n  \"type\": \"one_to_many\",\n  \"entity_definition_1_id\": \"123\",\n  \"entity_definition_2_id\": \"456\",\n  \"entity_1_to_2_predicate\": \"has\",\n  \"entity_2_to_1_predicate\": \"belongs to\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

{
  "id": "789",
  "type": "one_to_many",
  "entity_definition_1_id": "123",
  "entity_definition_2_id": "456",
  "entity_1_to_2_predicate": "has",
  "entity_2_to_1_predicate": "belongs to",
  "created_at": "2024-01-15T10:00:00Z"
}

{
  "code": 123,
  "message": "<string>"
}

{
  "code": 123,
  "message": "<string>"
}

{
  "code": 123,
  "message": "<string>"
}