curl --request POST \
  --url https://api.ctrl-hub.com/v3/operations/{operation_id}/allocate \
  --header 'Content-Type: application/vnd.api+json' \
  --header 'X-Session-Token: <api-key>' \
  --data '
{
  "data": {
    "type": "operation-allocations",
    "relationships": {
      "work_order": {
        "data": {
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "type": "work-orders"
        }
      }
    }
  }
}
'

import requests

url = "https://api.ctrl-hub.com/v3/operations/{operation_id}/allocate"

payload = { "data": {
        "type": "operation-allocations",
        "relationships": { "work_order": { "data": {
                    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
                    "type": "work-orders"
                } } }
    } }
headers = {
    "X-Session-Token": "<api-key>",
    "Content-Type": "application/vnd.api+json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-Session-Token': '<api-key>', 'Content-Type': 'application/vnd.api+json'},
  body: JSON.stringify({
    data: {
      type: 'operation-allocations',
      relationships: {
        work_order: {data: {id: '3c90c3cc-0d44-4b50-8888-8dd25736052a', type: 'work-orders'}}
      }
    }
  })
};

fetch('https://api.ctrl-hub.com/v3/operations/{operation_id}/allocate', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.ctrl-hub.com/v3/operations/{operation_id}/allocate",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'data' => [
        'type' => 'operation-allocations',
        'relationships' => [
                'work_order' => [
                                'data' => [
                                                                'id' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
                                                                'type' => 'work-orders'
                                ]
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/vnd.api+json",
    "X-Session-Token: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.ctrl-hub.com/v3/operations/{operation_id}/allocate"

	payload := strings.NewReader("{\n  \"data\": {\n    \"type\": \"operation-allocations\",\n    \"relationships\": {\n      \"work_order\": {\n        \"data\": {\n          \"id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n          \"type\": \"work-orders\"\n        }\n      }\n    }\n  }\n}")

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

	req.Header.Add("X-Session-Token", "<api-key>")
	req.Header.Add("Content-Type", "application/vnd.api+json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.ctrl-hub.com/v3/operations/{operation_id}/allocate")
  .header("X-Session-Token", "<api-key>")
  .header("Content-Type", "application/vnd.api+json")
  .body("{\n  \"data\": {\n    \"type\": \"operation-allocations\",\n    \"relationships\": {\n      \"work_order\": {\n        \"data\": {\n          \"id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n          \"type\": \"work-orders\"\n        }\n      }\n    }\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.ctrl-hub.com/v3/operations/{operation_id}/allocate")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["X-Session-Token"] = '<api-key>'
request["Content-Type"] = 'application/vnd.api+json'
request.body = "{\n  \"data\": {\n    \"type\": \"operation-allocations\",\n    \"relationships\": {\n      \"work_order\": {\n        \"data\": {\n          \"id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n          \"type\": \"work-orders\"\n        }\n      }\n    }\n  }\n}"

response = http.request(request)
puts response.read_body

{
  "data": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "type": "operations",
    "attributes": {
      "name": "<string>",
      "status": "done",
      "code": "<string>",
      "description": "<string>",
      "requires_meter_details": false,
      "dates": {
        "scheduled": {
          "start": "2023-11-07T05:31:56Z",
          "end": "2023-11-07T05:31:56Z"
        }
      },
      "labels": [
        {
          "key": "Your label key",
          "value": "Your label value"
        }
      ],
      "requirements": {
        "forms": [
          {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "required": true
          }
        ]
      },
      "done_reason": "aborted"
    },
    "meta": {
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z",
      "counts": {
        "streets": 0,
        "properties": 0,
        "locations": 0
      },
      "related_data": {
        "properties": [
          {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "postcode": "<string>"
          }
        ]
      }
    },
    "relationships": {
      "organisation": {
        "data": {
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "type": "organisations"
        }
      },
      "scheme": {
        "data": {
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "type": "schemes"
        }
      },
      "work_order": {
        "data": {
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "type": "work-orders"
        }
      },
      "appointment": {
        "data": {
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "type": "appointments"
        }
      },
      "permits": {
        "data": [
          {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "type": "permits"
          }
        ]
      },
      "template": {
        "data": {
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "type": "operation-templates"
        }
      },
      "type": {
        "data": {
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "type": "operation-types"
        }
      },
      "teams": {
        "data": [
          {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "type": "teams"
          }
        ]
      },
      "assignees": {
        "data": [
          {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "type": "users"
          }
        ]
      },
      "properties": {
        "data": [
          {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "type": "properties"
          }
        ]
      },
      "locations": {
        "data": [
          {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "type": "locations"
          }
        ]
      },
      "streets": {
        "data": [
          {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "type": "streets"
          }
        ]
      },
      "created_by_user": {
        "data": {
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "type": "users"
        }
      },
      "created_by_service_account": {
        "data": {
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "type": "service-accounts"
        }
      }
    }
  },
  "jsonapi": {
    "version": "1.0"
  },
  "included": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "type": "forms",
      "attributes": {
        "name": "<string>",
        "description": "<string>",
        "status": "draft"
      },
      "meta": {
        "created_at": "2023-11-07T05:31:56Z",
        "updated_at": "2023-11-07T05:31:56Z",
        "modified_at": "2023-11-07T05:31:56Z",
        "counts": {
          "schemas": 0,
          "categories": 0,
          "submissions": 0,
          "submission_versions": 0
        }
      },
      "relationships": {
        "organisation": {
          "data": {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "type": "organisations"
          }
        },
        "categories": {
          "data": [
            {
              "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
              "type": "form-categories"
            }
          ]
        },
        "schemas": {
          "data": [
            {
              "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
              "type": "form-schemas"
            }
          ]
        },
        "author": {
          "data": {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "type": "users"
          }
        },
        "workflow": {
          "data": {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "type": "workflow-definitions"
          }
        },
        "latest_schema": {
          "data": {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "type": "form-schemas"
          }
        },
        "submissions": {
          "data": [
            {
              "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
              "type": "form-submissions"
            }
          ]
        }
      }
    }
  ]
}

{
  "id": "98ca4a78-b66f-4234-9719-aaf832ee6669",
  "status": "400",
  "title": "A validation error was encountered",
  "source": {
    "parameter": "include"
  },
  "meta": {
    "resource": "wrong_value"
  }
}

{
  "id": "05fc9c8d-73b9-4697-9337-57f7a567a48f",
  "status": "401",
  "title": "You are not authorised to access this resource",
  "detail": "In order to access this resource, you need the 'admin' role.",
  "code": "AUTH.001"
}

{
  "id": "7b4c8f12-3e9a-4d5b-8c6f-1a2b3c4d5e6f",
  "status": "404",
  "title": "Resource not found",
  "detail": "The requested resource could not be found or does not exist.",
  "code": "NOT_FOUND.001"
}

{
  "id": "8e2f9a34-b5c6-4d7e-9f8a-2b3c4d5e6f7g",
  "status": "409",
  "title": "Conflict",
  "detail": "The request conflicts with the current state of the resource.",
  "code": "CONFLICT.001"
}

{
  "id": "fe9d9a69-f0a7-4fdc-bb2c-176027f316c5",
  "status": "500",
  "title": "Internal Server Error",
  "detail": "An unexpected error occurred on the server."
}