curl --request PUT \
  --url https://api.everhour.com/tasks/{task_id} \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <api-key>' \
  --data '
{
  "name": "Task Name",
  "section": 1234,
  "labels": [
    "high",
    "bug"
  ],
  "status": "open",
  "color": "#fdb301",
  "dueOn": "2018-03-05",
  "startOn": "2018-03-01",
  "description": "<string>",
  "assignees": [
    {
      "userId": 123,
      "accountId": "<string>"
    }
  ],
  "tags": [
    123
  ],
  "fields": [
    {}
  ],
  "cover": {
    "coverId": 123,
    "coverPick": "recent"
  }
}
'

import requests

url = "https://api.everhour.com/tasks/{task_id}"

payload = {
    "name": "Task Name",
    "section": 1234,
    "labels": ["high", "bug"],
    "status": "open",
    "color": "#fdb301",
    "dueOn": "2018-03-05",
    "startOn": "2018-03-01",
    "description": "<string>",
    "assignees": [
        {
            "userId": 123,
            "accountId": "<string>"
        }
    ],
    "tags": [123],
    "fields": [{}],
    "cover": {
        "coverId": 123,
        "coverPick": "recent"
    }
}
headers = {
    "X-Api-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PUT',
  headers: {'X-Api-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'Task Name',
    section: 1234,
    labels: ['high', 'bug'],
    status: 'open',
    color: '#fdb301',
    dueOn: '2018-03-05',
    startOn: '2018-03-01',
    description: '<string>',
    assignees: [{userId: 123, accountId: '<string>'}],
    tags: [123],
    fields: [{}],
    cover: {coverId: 123, coverPick: 'recent'}
  })
};

fetch('https://api.everhour.com/tasks/{task_id}', 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.everhour.com/tasks/{task_id}",
  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([
    'name' => 'Task Name',
    'section' => 1234,
    'labels' => [
        'high',
        'bug'
    ],
    'status' => 'open',
    'color' => '#fdb301',
    'dueOn' => '2018-03-05',
    'startOn' => '2018-03-01',
    'description' => '<string>',
    'assignees' => [
        [
                'userId' => 123,
                'accountId' => '<string>'
        ]
    ],
    'tags' => [
        123
    ],
    'fields' => [
        [
                
        ]
    ],
    'cover' => [
        'coverId' => 123,
        'coverPick' => 'recent'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-Api-Key: <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.everhour.com/tasks/{task_id}"

	payload := strings.NewReader("{\n  \"name\": \"Task Name\",\n  \"section\": 1234,\n  \"labels\": [\n    \"high\",\n    \"bug\"\n  ],\n  \"status\": \"open\",\n  \"color\": \"#fdb301\",\n  \"dueOn\": \"2018-03-05\",\n  \"startOn\": \"2018-03-01\",\n  \"description\": \"<string>\",\n  \"assignees\": [\n    {\n      \"userId\": 123,\n      \"accountId\": \"<string>\"\n    }\n  ],\n  \"tags\": [\n    123\n  ],\n  \"fields\": [\n    {}\n  ],\n  \"cover\": {\n    \"coverId\": 123,\n    \"coverPick\": \"recent\"\n  }\n}")

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

	req.Header.Add("X-Api-Key", "<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.everhour.com/tasks/{task_id}")
  .header("X-Api-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"Task Name\",\n  \"section\": 1234,\n  \"labels\": [\n    \"high\",\n    \"bug\"\n  ],\n  \"status\": \"open\",\n  \"color\": \"#fdb301\",\n  \"dueOn\": \"2018-03-05\",\n  \"startOn\": \"2018-03-01\",\n  \"description\": \"<string>\",\n  \"assignees\": [\n    {\n      \"userId\": 123,\n      \"accountId\": \"<string>\"\n    }\n  ],\n  \"tags\": [\n    123\n  ],\n  \"fields\": [\n    {}\n  ],\n  \"cover\": {\n    \"coverId\": 123,\n    \"coverPick\": \"recent\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.everhour.com/tasks/{task_id}")

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

request = Net::HTTP::Put.new(url)
request["X-Api-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"Task Name\",\n  \"section\": 1234,\n  \"labels\": [\n    \"high\",\n    \"bug\"\n  ],\n  \"status\": \"open\",\n  \"color\": \"#fdb301\",\n  \"dueOn\": \"2018-03-05\",\n  \"startOn\": \"2018-03-01\",\n  \"description\": \"<string>\",\n  \"assignees\": [\n    {\n      \"userId\": 123,\n      \"accountId\": \"<string>\"\n    }\n  ],\n  \"tags\": [\n    123\n  ],\n  \"fields\": [\n    {}\n  ],\n  \"cover\": {\n    \"coverId\": 123,\n    \"coverPick\": \"recent\"\n  }\n}"

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

{
  "id": "ev:9876543210",
  "name": "Task Name",
  "projects": [
    "ev:1234567890"
  ],
  "section": 1234,
  "labels": [
    "high",
    "bug"
  ],
  "position": 1,
  "description": "<string>",
  "dueAt": "2018-03-05 16:00:00",
  "status": "open",
  "time": {
    "total": 7200,
    "users": {
      "1304": 3600,
      "1543": 3600
    }
  },
  "estimate": {
    "total": 7200,
    "type": "overall",
    "users": {
      "1304": 3600,
      "1543": 3600
    }
  },
  "attributes": {
    "Client": "Everhour",
    "Priority": "high"
  },
  "metrics": {
    "efforts": 42,
    "expenses": 199
  },
  "unbillable": true
}