Update an employee's National Insurance Number

curl --request PUT \
  --url https://api.sandbox.flowpayroll.ai/v1/employees/{employeeId}/nino \
  --header 'Content-Type: application/json' \
  --header 'X-Auth-Token: <api-key>' \
  --header 'X-Org-Id: <api-key>' \
  --data '
{
  "nationalInsuranceNumber": "AB123456C"
}
'

import requests

url = "https://api.sandbox.flowpayroll.ai/v1/employees/{employeeId}/nino"

payload = { "nationalInsuranceNumber": "AB123456C" }
headers = {
    "X-Auth-Token": "<api-key>",
    "X-Org-Id": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PUT',
  headers: {
    'X-Auth-Token': '<api-key>',
    'X-Org-Id': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({nationalInsuranceNumber: 'AB123456C'})
};

fetch('https://api.sandbox.flowpayroll.ai/v1/employees/{employeeId}/nino', 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.sandbox.flowpayroll.ai/v1/employees/{employeeId}/nino",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'nationalInsuranceNumber' => 'AB123456C'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-Auth-Token: <api-key>",
    "X-Org-Id: <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.sandbox.flowpayroll.ai/v1/employees/{employeeId}/nino"

	payload := strings.NewReader("{\n  \"nationalInsuranceNumber\": \"AB123456C\"\n}")

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

	req.Header.Add("X-Auth-Token", "<api-key>")
	req.Header.Add("X-Org-Id", "<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))

}

HttpResponse<String> response = Unirest.put("https://api.sandbox.flowpayroll.ai/v1/employees/{employeeId}/nino")
  .header("X-Auth-Token", "<api-key>")
  .header("X-Org-Id", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"nationalInsuranceNumber\": \"AB123456C\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.sandbox.flowpayroll.ai/v1/employees/{employeeId}/nino")

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

request = Net::HTTP::Put.new(url)
request["X-Auth-Token"] = '<api-key>'
request["X-Org-Id"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"nationalInsuranceNumber\": \"AB123456C\"\n}"

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

{
  "message": {
    "text": "<string>",
    "token": "<string>",
    "tokenArguments": [
      {
        "name": "<string>",
        "value": "<string>"
      }
    ]
  },
  "content": {
    "data": {
      "name": {
        "firstName": "John",
        "lastName": "Smith",
        "middleName": "Edward",
        "title": "Mr"
      },
      "email": "john.smith@company.com",
      "birthGender": "Male",
      "birthDate": "1985-07-23",
      "hoursWorkedCategory": "Above30Hours",
      "id": "emp_12345",
      "payrollConfigId": "payroll_config_001",
      "starterDetails": {
        "startDate": "2024-01-15",
        "starterDeclaration": "ThisIsMyOnlyJob",
        "alreadySentToHmrcFps": false,
        "secondedDetails": {
          "eEACitizen": true,
          "ePM6": false,
          "stayStatus": "Stay183DaysOrMore"
        }
      },
      "taxCodesPerYear": {
        "2025": [
          {
            "code": "1257L",
            "effectiveDate": "2025-04-06",
            "reason": "HMRC Update",
            "issuedBy": "HMRC",
            "week1Month1": false
          }
        ]
      },
      "niDetails": {
        "categoriesPerYear": {},
        "nationalInsuranceNumber": "QQ123456C"
      },
      "phone": "+447700900123",
      "maritalStatus": "Married",
      "salary": 35000,
      "employeeCode": "EMP001",
      "secondaryEmail": "john.secondary@company.com",
      "address": {
        "line1": "123 Main Street",
        "line2": "Apt 4B",
        "city": "London",
        "county": "Greater London",
        "postcode": "SW1A 1AA",
        "countryCode": "GB"
      },
      "bankAccounts": [
        {
          "accountNumber": "12345678",
          "sortCode": "123456",
          "allocationPercentage": 100,
          "isPrimaryPayrollAccount": true,
          "accountHolderName": "John Smith"
        }
      ],
      "studentDetails": {
        "studentLoanDetails": {
          "loanType": "Plan2",
          "startDate": "2010-09-01",
          "endDate": "2025-07-31"
        },
        "postgraduateLoanDetails": {
          "loanType": "PostgraduateLoan",
          "startDate": "2015-09-01",
          "endDate": "2028-07-31"
        }
      },
      "tags": [
        {
          "name": "FullTime",
          "group": "EmploymentType",
          "value": "FullTime"
        }
      ],
      "previousEmployment": {
        "2026": {
          "grossTaxable": 15000,
          "tax": 3000
        }
      },
      "gender": "Male",
      "secondaryPhone": "+447700900124",
      "passportNumber": "123456789",
      "previousNames": [
        "John Doe"
      ],
      "directorDetails": {
        "directorsNICType": "Annual",
        "appointmentDate": "2024-01-15",
        "endDate": "2025-03-31"
      },
      "isIrregularEmployment": false,
      "isOffPayrollWorker": false,
      "workplaceDetails": {
        "workplaceId": "workplace_001",
        "workplaceName": "Head Office",
        "address": {
          "line1": "123 Main Street",
          "line2": "Apt 4B",
          "city": "London",
          "county": "Greater London",
          "postcode": "SW1A 1AA",
          "countryCode": "GB"
        }
      },
      "workingDays": {
        "standardWorkingDays": {
          "monday": true,
          "tuesday": true,
          "wednesday": true,
          "thursday": true,
          "friday": true,
          "saturday": false,
          "sunday": false
        },
        "shiftPattern": {
          "rotationStartDate": "2024-01-01",
          "shifts": [
            {
              "name": "Morning Shift",
              "workingDays": {
                "monday": true,
                "tuesday": true,
                "wednesday": true,
                "thursday": true,
                "friday": true,
                "saturday": false,
                "sunday": false
              },
              "durationInDays": 5,
              "weekNumber": 1
            },
            {
              "name": "Night Shift",
              "workingDays": {
                "monday": true,
                "tuesday": true,
                "wednesday": true,
                "thursday": true,
                "friday": true,
                "saturday": false,
                "sunday": false
              },
              "durationInDays": 5,
              "weekNumber": 2
            }
          ],
          "patternType": "FourOnFourOff",
          "patternWeeks": 8
        },
        "workingPattern": "Standard",
        "explicitSchedule": {
          "weeks": [
            {
              "weekCommencing": "2026-07-06",
              "workingDays": {
                "monday": true,
                "tuesday": true,
                "wednesday": true,
                "thursday": true,
                "friday": true,
                "saturday": false,
                "sunday": false
              }
            }
          ]
        }
      },
      "partnerDetails": {
        "name": {
          "firstName": "John",
          "lastName": "Smith",
          "middleName": "Edward",
          "title": "Mr"
        },
        "nationalInsuranceNumber": "QQ654321A"
      },
      "department": "Engineering",
      "jobTitle": "Software Engineer",
      "leaverDetails": {
        "leavingDate": "2024-12-31",
        "reason": "Retirement",
        "issuedBy": "Employer",
        "reportedToHmrc": false,
        "finalisedOnPayslip": false
      },
      "earningsToDatePerYear": {},
      "openingBalance": {},
      "openingBalanceDirector": {},
      "directorEarningsToDatePerYear": {},
      "payrollId": "PAY123",
      "createdDate": "2023-01-15T10:00:00Z",
      "createdBy": "admin@company.com",
      "updatedDate": "2023-06-01T12:00:00Z",
      "updatedBy": "hr@company.com"
    },
    "metadata": {
      "dateFormat": "yyyy-MM-dd",
      "dateTimeFormat": "yyyy-MM-ddTHH:mm:ss.fffZ",
      "paginationToken": "<string>"
    }
  },
  "validationIssues": [
    {
      "field": "<string>",
      "reason": "<string>",
      "reasonToken": "<string>",
      "reasonTokenArguments": [
        {
          "name": "<string>",
          "value": "<string>"
        }
      ]
    }
  ],
  "messageToken": "<string>"
}

{
  "message": {
    "text": "<string>",
    "token": "<string>",
    "tokenArguments": [
      {
        "name": "<string>",
        "value": "<string>"
      }
    ]
  },
  "content": {
    "data": {},
    "metadata": {
      "dateFormat": "yyyy-MM-dd",
      "dateTimeFormat": "yyyy-MM-ddTHH:mm:ss.fffZ",
      "paginationToken": "<string>"
    }
  },
  "validationIssues": [
    {
      "field": "<string>",
      "reason": "<string>",
      "reasonToken": "<string>",
      "reasonTokenArguments": [
        {
          "name": "<string>",
          "value": "<string>"
        }
      ]
    }
  ],
  "messageToken": "<string>"
}

{
  "message": {
    "text": "<string>",
    "token": "<string>",
    "tokenArguments": [
      {
        "name": "<string>",
        "value": "<string>"
      }
    ]
  },
  "content": {
    "data": {},
    "metadata": {
      "dateFormat": "yyyy-MM-dd",
      "dateTimeFormat": "yyyy-MM-ddTHH:mm:ss.fffZ",
      "paginationToken": "<string>"
    }
  },
  "validationIssues": [
    {
      "field": "<string>",
      "reason": "<string>",
      "reasonToken": "<string>",
      "reasonTokenArguments": [
        {
          "name": "<string>",
          "value": "<string>"
        }
      ]
    }
  ],
  "messageToken": "<string>"
}

{
  "message": {
    "text": "<string>",
    "token": "<string>",
    "tokenArguments": [
      {
        "name": "<string>",
        "value": "<string>"
      }
    ]
  },
  "content": {
    "data": {},
    "metadata": {
      "dateFormat": "yyyy-MM-dd",
      "dateTimeFormat": "yyyy-MM-ddTHH:mm:ss.fffZ",
      "paginationToken": "<string>"
    }
  },
  "validationIssues": [
    {
      "field": "<string>",
      "reason": "<string>",
      "reasonToken": "<string>",
      "reasonTokenArguments": [
        {
          "name": "<string>",
          "value": "<string>"
        }
      ]
    }
  ],
  "messageToken": "<string>"
}