Zoho Projects API Documentation
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Task Dependency

This module covers operations related to task dependencies within Zoho Projects. Use this API to add, retrieve, update, or delete task dependencies.

Add Task Dependency

Create a dependency between two tasks in a project.

POST

/api/v3/portal/[PORTAL_ID]/projects/[PROJECT_ID]/tasks/dependency

OAuth Scope:

ZohoProjects.tasks.READ

Path Parameters

Param Name
Data Type
Description

Body Parameters

Param Name
Data Type
Description

Request Example

Request Example
  • cURL
  • Deluge
  • Node.js
  • Ruby
  • PHP
  • Python
  • C
  • C#
  • C++
  • Clojure
  • Go
  • HTTP
  • Java
  • JS Fetch
  • JSON
  • Kotlin
  • Objective-C
  • OCaml
  • PowerShell
  • R
  • Swift

curl -X POST \
'https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency' \
-H 'Authorization: Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa' \
-H 'Content-Type: application/json' \
-d '{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}'

url = "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency";
params = Map();
params.put("predecessor_task", {"id":"4000000062005"});
params.put("successor_task", {"id":"4000000062005"});
params.put("dependency_type", "FS");
params.put("link_type", "0");
params.put("lag", {"value":"2","type":"days"});
response = invokeUrl
[
    url: url
    type: POST
    parameters: params.toString()
    connection: "projects"
];
info response;

const https = require('https');
const url = new URL('https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency');

const payload = JSON.stringify({"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}});

const options = {
  hostname: url.hostname,
  path: url.pathname + url.search,
  method: 'POST',
  headers: {
    'Authorization': 'Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa',
    'Content-Type': 'application/json',
    'Content-Length': Buffer.byteLength(payload)
  }
};

const req = https.request(options, (res) => {
  let data = '';
  res.on('data', (chunk) => { data += chunk; });
  res.on('end', () => { console.log(JSON.parse(data)); });
});

req.on('error', (err) => { console.error(err); });
req.write(payload);
req.end();

require 'net/http'
require 'uri'
require 'json'

url = URI("https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa"
request["Content-Type"] = "application/json"
request.body = '{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}'

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

<?php
$url = "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency";

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => $url,
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => '{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}',
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
curl_close($curl);

echo $response;

import requests

url = "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency"

headers = {
    "Authorization": "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa",
    "Content-Type": "application/json",
}

payload = '{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}'

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

print(response.json())

#include <stdio.h>
#include <string.h>
#include <curl/curl.h>

int main(void) {
    CURL *curl = curl_easy_init();
    if (curl) {
        struct curl_slist *headers = NULL;
        headers = curl_slist_append(headers, "Authorization: Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa");
        headers = curl_slist_append(headers, "Content-Type: application/json");

        curl_easy_setopt(curl, CURLOPT_URL, "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency");
        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
        curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "POST");
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}");

        CURLcode res = curl_easy_perform(curl);
        if (res != CURLE_OK)
            fprintf(stderr, "curl failed: %s\n", curl_easy_strerror(res));

        curl_slist_free_all(headers);
        curl_easy_cleanup(curl);
    }
    return 0;
}

using System.Net.Http;
using System.Text;
using System.Web;

var client = new HttpClient();
client.DefaultRequestHeaders.Add("Authorization", "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa");

var request = new HttpRequestMessage(HttpMethod.Post, "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency");
request.Content = new StringContent(
    @"{""predecessor_task"":{""id"":""4000000062005""},""successor_task"":{""id"":""4000000062005""},""dependency_type"":""FS"",""link_type"":""0"",""lag"":{""value"":""2"",""type"":""days""}}",
    Encoding.UTF8,
    "application/json"
);

var response = await client.SendAsync(request);
var body = await response.Content.ReadAsStringAsync();
Console.WriteLine(body);

#include <iostream>
#include <string>
#include <curl/curl.h>

static size_t WriteCallback(void* contents, size_t size, size_t nmemb, std::string* output) {
    output->append((char*)contents, size * nmemb);
    return size * nmemb;
}

int main() {
    CURL* curl = curl_easy_init();
    if (curl) {
        std::string response;
        struct curl_slist* headers = NULL;
        headers = curl_slist_append(headers, "Authorization: Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa");
        headers = curl_slist_append(headers, "Content-Type: application/json");

        curl_easy_setopt(curl, CURLOPT_URL, "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency");
        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
        curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "POST");
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteCallback);
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &response);
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}");

        CURLcode res = curl_easy_perform(curl);
        if (res == CURLE_OK)
            std::cout << response << std::endl;
        else
            std::cerr << curl_easy_strerror(res) << std::endl;

        curl_slist_free_all(headers);
        curl_easy_cleanup(curl);
    }
    return 0;
}

(require '[clj-http.client :as client])

(def response
  (client/post "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency"
    {:headers {"Authorization" "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa"
                "Content-Type" "application/json"}
     :body "{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}"
     :as :json}))

(println (:body response))

package main

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

func main() {
    payload := strings.NewReader("{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}")
    req, _ := http.NewRequest("POST", "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency", payload)
    req.Header.Add("Authorization", "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa")
    req.Header.Add("Content-Type", "application/json")

    resp, _ := http.DefaultClient.Do(req)
    defer resp.Body.Close()
    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}

POST https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency HTTP/1.1
Host: https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency
Authorization: Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa
Content-Type: application/json

{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}

HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();

SSLContext sslContext = SSLContext.getDefault();
SSLConnectionSocketFactory sslConnectionSocketFactory = new SSLConnectionSocketFactory(sslContext, NoopHostnameVerifier.INSTANCE);
CloseableHttpClient httpclient = httpClientBuilder.setSSLSocketFactory(sslConnectionSocketFactory).build();

URIBuilder uriBuilder = new URIBuilder("https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency");
HttpUriRequest requestObj = new HttpPost(uriBuilder.build());
requestObj.addHeader("Authorization", "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa");

HttpEntityEnclosingRequestBase requestBase = (HttpEntityEnclosingRequestBase) requestObj;
String requestBody = "{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}";
requestBase.setEntity(new StringEntity(requestBody, HTTP.UTF_8));

HttpResponse response = httpclient.execute(requestObj);

HttpEntity responseEntity = response.getEntity();
Object responseObject = EntityUtils.toString(responseEntity);
String responseString = responseObject.toString();

const url = 'https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency';

const options = {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}})
};

fetch(url, options)
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error(error));

{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}
import java.net.HttpURLConnection
import java.net.URL
import okhttp3.HttpUrl.Companion.toHttpUrl

fun main() {
    val url = URL("https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency")
    val conn = url.openConnection() as HttpURLConnection
    conn.requestMethod = "POST"
    conn.setRequestProperty("Authorization", "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa")
    conn.setRequestProperty("Content-Type", "application/json")
    conn.doOutput = true
    conn.outputStream.bufferedWriter().use { it.write("""{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}""") }

    val response = conn.inputStream.bufferedReader().readText()
    println(response)
}

NSURL *url = [NSURL URLWithString:@"https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:@"POST"];
[request setValue:@"Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa" forHTTPHeaderField:@"Authorization"];
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
NSData *body = [@"{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}" dataUsingEncoding:NSUTF8StringEncoding];
[request setHTTPBody:body];

NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *task = [session dataTaskWithRequest:request
    completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
        NSString *result = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
        NSLog(@"%@", result);
}];
[task resume];

open Lwt
open Cohttp_lwt_unix

let () =
  let uri = Uri.of_string "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency" in
  let headers = Cohttp.Header.init ()
    |> fun h -> Cohttp.Header.add h "Authorization" "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa"
    |> fun h -> Cohttp.Header.add h "Content-Type" "application/json"
  in
  let body = Cohttp_lwt.Body.of_string {json|{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}|json} in
  Lwt_main.run (
    Client.post ~headers ~body uri >>= fun (_, body) ->
    Cohttp_lwt.Body.to_string body >|= fun s ->
    print_endline s)

$headers = @{
    "Authorization" = "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa"
    "Content-Type" = "application/json"
}

$body = @'
{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}
'@

$response = Invoke-RestMethod -Uri "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency" -Method POST -Headers $headers -Body $body

$response | ConvertTo-Json

library(httr)

url <- "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency"

response <- POST(
  url,
  add_headers(Authorization = "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa"),
  content_type_json(),
  body = "{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}"
)

content(response, "text")

import Foundation

let url = URL(string: "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa", forHTTPHeaderField: "Authorization")
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.httpBody = """
{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}
""".data(using: .utf8)

let semaphore = DispatchSemaphore(value: 0)
let task = URLSession.shared.dataTask(with: request) { data, response, error in
    if let data = data, let result = String(data: data, encoding: .utf8) {
        print(result)
    }
    semaphore.signal()
}
task.resume()
semaphore.wait()

Sample Input

Content-Type: application/json
{ "predecessor_task" : { "id" : "4000000062005" }, "successor_task" : { "id" : "4000000062005" }, "dependency_type" : "FS", "link_type" : "0", "lag" : { "value" : "2", "type" : "days" } }

Sample Response

200{ "predecessor_task" : { "id" : 5000000025251 }, "lag" : { "type" : "hrs", "value" : "1.5" }, "dependency_type" : "FF", "successor_task" : { "id" : 5000000025361 } }

Delete Dependency

Remove a task dependency between tasks in a project.

DELETE

/api/v3/portal/[PORTAL_ID]/projects/[PROJECT_ID]/tasks/dependency

OAuth Scope:

ZohoProjects.tasks.READ

Path Parameters

Param Name
Data Type
Description

Body Parameters

Param Name
Data Type
Description

Request Example

Request Example
  • cURL
  • Deluge
  • Node.js
  • Ruby
  • PHP
  • Python
  • C
  • C#
  • C++
  • Clojure
  • Go
  • HTTP
  • Java
  • JS Fetch
  • JSON
  • Kotlin
  • Objective-C
  • OCaml
  • PowerShell
  • R
  • Swift

curl -X DELETE \
'https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency' \
-H 'Authorization: Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa' \
-H 'Content-Type: application/json' \
-d '{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}'

url = "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency";
params = Map();
params.put("predecessor_task", {"id":"4000000062005"});
params.put("successor_task", {"id":"4000000062005"});
params.put("dependency_type", "FS");
params.put("link_type", "0");
params.put("lag", {"value":"2","type":"days"});
response = invokeUrl
[
    url: url
    type: DELETE
    parameters: params.toString()
    connection: "projects"
];
info response;

const https = require('https');
const url = new URL('https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency');

const payload = JSON.stringify({"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}});

const options = {
  hostname: url.hostname,
  path: url.pathname + url.search,
  method: 'DELETE',
  headers: {
    'Authorization': 'Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa',
    'Content-Type': 'application/json',
    'Content-Length': Buffer.byteLength(payload)
  }
};

const req = https.request(options, (res) => {
  let data = '';
  res.on('data', (chunk) => { data += chunk; });
  res.on('end', () => { console.log(JSON.parse(data)); });
});

req.on('error', (err) => { console.error(err); });
req.write(payload);
req.end();

require 'net/http'
require 'uri'
require 'json'

url = URI("https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency")

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

request = Net::HTTP::Delete.new(url)
request["Authorization"] = "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa"
request["Content-Type"] = "application/json"
request.body = '{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}'

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

<?php
$url = "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency";

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => $url,
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_CUSTOMREQUEST => "DELETE",
  CURLOPT_POSTFIELDS => '{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}',
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
curl_close($curl);

echo $response;

import requests

url = "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency"

headers = {
    "Authorization": "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa",
    "Content-Type": "application/json",
}

payload = '{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}'

response = requests.delete(url, headers=headers, data=payload)

print(response.json())

#include <stdio.h>
#include <string.h>
#include <curl/curl.h>

int main(void) {
    CURL *curl = curl_easy_init();
    if (curl) {
        struct curl_slist *headers = NULL;
        headers = curl_slist_append(headers, "Authorization: Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa");
        headers = curl_slist_append(headers, "Content-Type: application/json");

        curl_easy_setopt(curl, CURLOPT_URL, "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency");
        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
        curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE");
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}");

        CURLcode res = curl_easy_perform(curl);
        if (res != CURLE_OK)
            fprintf(stderr, "curl failed: %s\n", curl_easy_strerror(res));

        curl_slist_free_all(headers);
        curl_easy_cleanup(curl);
    }
    return 0;
}

using System.Net.Http;
using System.Text;
using System.Web;

var client = new HttpClient();
client.DefaultRequestHeaders.Add("Authorization", "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa");

var request = new HttpRequestMessage(HttpMethod.Delete, "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency");
request.Content = new StringContent(
    @"{""predecessor_task"":{""id"":""4000000062005""},""successor_task"":{""id"":""4000000062005""},""dependency_type"":""FS"",""link_type"":""0"",""lag"":{""value"":""2"",""type"":""days""}}",
    Encoding.UTF8,
    "application/json"
);

var response = await client.SendAsync(request);
var body = await response.Content.ReadAsStringAsync();
Console.WriteLine(body);

#include <iostream>
#include <string>
#include <curl/curl.h>

static size_t WriteCallback(void* contents, size_t size, size_t nmemb, std::string* output) {
    output->append((char*)contents, size * nmemb);
    return size * nmemb;
}

int main() {
    CURL* curl = curl_easy_init();
    if (curl) {
        std::string response;
        struct curl_slist* headers = NULL;
        headers = curl_slist_append(headers, "Authorization: Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa");
        headers = curl_slist_append(headers, "Content-Type: application/json");

        curl_easy_setopt(curl, CURLOPT_URL, "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency");
        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
        curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE");
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteCallback);
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &response);
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}");

        CURLcode res = curl_easy_perform(curl);
        if (res == CURLE_OK)
            std::cout << response << std::endl;
        else
            std::cerr << curl_easy_strerror(res) << std::endl;

        curl_slist_free_all(headers);
        curl_easy_cleanup(curl);
    }
    return 0;
}

(require '[clj-http.client :as client])

(def response
  (client/delete "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency"
    {:headers {"Authorization" "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa"
                "Content-Type" "application/json"}
     :body "{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}"
     :as :json}))

(println (:body response))

package main

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

func main() {
    payload := strings.NewReader("{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}")
    req, _ := http.NewRequest("DELETE", "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency", payload)
    req.Header.Add("Authorization", "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa")
    req.Header.Add("Content-Type", "application/json")

    resp, _ := http.DefaultClient.Do(req)
    defer resp.Body.Close()
    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}

DELETE https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency HTTP/1.1
Host: https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency
Authorization: Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa
Content-Type: application/json

{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}

HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();

SSLContext sslContext = SSLContext.getDefault();
SSLConnectionSocketFactory sslConnectionSocketFactory = new SSLConnectionSocketFactory(sslContext, NoopHostnameVerifier.INSTANCE);
CloseableHttpClient httpclient = httpClientBuilder.setSSLSocketFactory(sslConnectionSocketFactory).build();

URIBuilder uriBuilder = new URIBuilder("https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency");
HttpUriRequest requestObj = new HttpDelete(uriBuilder.build());
requestObj.addHeader("Authorization", "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa");

HttpResponse response = httpclient.execute(requestObj);

HttpEntity responseEntity = response.getEntity();
Object responseObject = EntityUtils.toString(responseEntity);
String responseString = responseObject.toString();

const url = 'https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency';

const options = {
  method: 'DELETE',
  headers: {
    'Authorization': 'Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}})
};

fetch(url, options)
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error(error));

{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}
import java.net.HttpURLConnection
import java.net.URL
import okhttp3.HttpUrl.Companion.toHttpUrl

fun main() {
    val url = URL("https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency")
    val conn = url.openConnection() as HttpURLConnection
    conn.requestMethod = "DELETE"
    conn.setRequestProperty("Authorization", "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa")
    conn.setRequestProperty("Content-Type", "application/json")
    conn.doOutput = true
    conn.outputStream.bufferedWriter().use { it.write("""{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}""") }

    val response = conn.inputStream.bufferedReader().readText()
    println(response)
}

NSURL *url = [NSURL URLWithString:@"https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:@"DELETE"];
[request setValue:@"Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa" forHTTPHeaderField:@"Authorization"];
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
NSData *body = [@"{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}" dataUsingEncoding:NSUTF8StringEncoding];
[request setHTTPBody:body];

NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *task = [session dataTaskWithRequest:request
    completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
        NSString *result = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
        NSLog(@"%@", result);
}];
[task resume];

open Lwt
open Cohttp_lwt_unix

let () =
  let uri = Uri.of_string "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency" in
  let headers = Cohttp.Header.init ()
    |> fun h -> Cohttp.Header.add h "Authorization" "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa"
    |> fun h -> Cohttp.Header.add h "Content-Type" "application/json"
  in
  let body = Cohttp_lwt.Body.of_string {json|{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}|json} in
  Lwt_main.run (
    Client.delete ~headers ~body uri >>= fun (_, body) ->
    Cohttp_lwt.Body.to_string body >|= fun s ->
    print_endline s)

$headers = @{
    "Authorization" = "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa"
    "Content-Type" = "application/json"
}

$body = @'
{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}
'@

$response = Invoke-RestMethod -Uri "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency" -Method DELETE -Headers $headers -Body $body

$response | ConvertTo-Json

library(httr)

url <- "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency"

response <- DELETE(
  url,
  add_headers(Authorization = "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa"),
  content_type_json(),
  body = "{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}"
)

content(response, "text")

import Foundation

let url = URL(string: "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency")!
var request = URLRequest(url: url)
request.httpMethod = "DELETE"
request.setValue("Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa", forHTTPHeaderField: "Authorization")
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.httpBody = """
{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}
""".data(using: .utf8)

let semaphore = DispatchSemaphore(value: 0)
let task = URLSession.shared.dataTask(with: request) { data, response, error in
    if let data = data, let result = String(data: data, encoding: .utf8) {
        print(result)
    }
    semaphore.signal()
}
task.resume()
semaphore.wait()

Sample Input

Content-Type: application/json
{ "predecessor_task" : { "id" : "4000000062005" }, "successor_task" : { "id" : "4000000062005" }, "dependency_type" : "FS", "link_type" : "0", "lag" : { "value" : "2", "type" : "days" } }

Sample Response

200

Update Dependency

Modify the dependency between tasks in a project.

PATCH

/api/v3/portal/[PORTAL_ID]/projects/[PROJECT_ID]/tasks/dependency

OAuth Scope:

ZohoProjects.tasks.READ

Path Parameters

Param Name
Data Type
Description

Body Parameters

Param Name
Data Type
Description

Request Example

Request Example
  • cURL
  • Deluge
  • Node.js
  • Ruby
  • PHP
  • Python
  • C
  • C#
  • C++
  • Clojure
  • Go
  • HTTP
  • Java
  • JS Fetch
  • JSON
  • Kotlin
  • Objective-C
  • OCaml
  • PowerShell
  • R
  • Swift

curl -X PATCH \
'https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency' \
-H 'Authorization: Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa' \
-H 'Content-Type: application/json' \
-d '{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}'

url = "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency";
params = Map();
params.put("predecessor_task", {"id":"4000000062005"});
params.put("successor_task", {"id":"4000000062005"});
params.put("dependency_type", "FS");
params.put("link_type", "0");
params.put("lag", {"value":"2","type":"days"});
response = invokeUrl
[
    url: url
    type: PATCH
    parameters: params.toString()
    connection: "projects"
];
info response;

const https = require('https');
const url = new URL('https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency');

const payload = JSON.stringify({"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}});

const options = {
  hostname: url.hostname,
  path: url.pathname + url.search,
  method: 'PATCH',
  headers: {
    'Authorization': 'Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa',
    'Content-Type': 'application/json',
    'Content-Length': Buffer.byteLength(payload)
  }
};

const req = https.request(options, (res) => {
  let data = '';
  res.on('data', (chunk) => { data += chunk; });
  res.on('end', () => { console.log(JSON.parse(data)); });
});

req.on('error', (err) => { console.error(err); });
req.write(payload);
req.end();

require 'net/http'
require 'uri'
require 'json'

url = URI("https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency")

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

request = Net::HTTP::Patch.new(url)
request["Authorization"] = "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa"
request["Content-Type"] = "application/json"
request.body = '{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}'

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

<?php
$url = "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency";

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => $url,
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => '{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}',
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
curl_close($curl);

echo $response;

import requests

url = "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency"

headers = {
    "Authorization": "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa",
    "Content-Type": "application/json",
}

payload = '{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}'

response = requests.patch(url, headers=headers, data=payload)

print(response.json())

#include <stdio.h>
#include <string.h>
#include <curl/curl.h>

int main(void) {
    CURL *curl = curl_easy_init();
    if (curl) {
        struct curl_slist *headers = NULL;
        headers = curl_slist_append(headers, "Authorization: Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa");
        headers = curl_slist_append(headers, "Content-Type: application/json");

        curl_easy_setopt(curl, CURLOPT_URL, "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency");
        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
        curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PATCH");
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}");

        CURLcode res = curl_easy_perform(curl);
        if (res != CURLE_OK)
            fprintf(stderr, "curl failed: %s\n", curl_easy_strerror(res));

        curl_slist_free_all(headers);
        curl_easy_cleanup(curl);
    }
    return 0;
}

using System.Net.Http;
using System.Text;
using System.Web;

var client = new HttpClient();
client.DefaultRequestHeaders.Add("Authorization", "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa");

var request = new HttpRequestMessage(HttpMethod.Patch, "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency");
request.Content = new StringContent(
    @"{""predecessor_task"":{""id"":""4000000062005""},""successor_task"":{""id"":""4000000062005""},""dependency_type"":""FS"",""link_type"":""0"",""lag"":{""value"":""2"",""type"":""days""}}",
    Encoding.UTF8,
    "application/json"
);

var response = await client.SendAsync(request);
var body = await response.Content.ReadAsStringAsync();
Console.WriteLine(body);

#include <iostream>
#include <string>
#include <curl/curl.h>

static size_t WriteCallback(void* contents, size_t size, size_t nmemb, std::string* output) {
    output->append((char*)contents, size * nmemb);
    return size * nmemb;
}

int main() {
    CURL* curl = curl_easy_init();
    if (curl) {
        std::string response;
        struct curl_slist* headers = NULL;
        headers = curl_slist_append(headers, "Authorization: Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa");
        headers = curl_slist_append(headers, "Content-Type: application/json");

        curl_easy_setopt(curl, CURLOPT_URL, "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency");
        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
        curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PATCH");
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteCallback);
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &response);
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}");

        CURLcode res = curl_easy_perform(curl);
        if (res == CURLE_OK)
            std::cout << response << std::endl;
        else
            std::cerr << curl_easy_strerror(res) << std::endl;

        curl_slist_free_all(headers);
        curl_easy_cleanup(curl);
    }
    return 0;
}

(require '[clj-http.client :as client])

(def response
  (client/patch "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency"
    {:headers {"Authorization" "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa"
                "Content-Type" "application/json"}
     :body "{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}"
     :as :json}))

(println (:body response))

package main

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

func main() {
    payload := strings.NewReader("{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}")
    req, _ := http.NewRequest("PATCH", "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency", payload)
    req.Header.Add("Authorization", "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa")
    req.Header.Add("Content-Type", "application/json")

    resp, _ := http.DefaultClient.Do(req)
    defer resp.Body.Close()
    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}

PATCH https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency HTTP/1.1
Host: https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency
Authorization: Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa
Content-Type: application/json

{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}

HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();

SSLContext sslContext = SSLContext.getDefault();
SSLConnectionSocketFactory sslConnectionSocketFactory = new SSLConnectionSocketFactory(sslContext, NoopHostnameVerifier.INSTANCE);
CloseableHttpClient httpclient = httpClientBuilder.setSSLSocketFactory(sslConnectionSocketFactory).build();

URIBuilder uriBuilder = new URIBuilder("https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency");
HttpUriRequest requestObj = new HttpPatch(uriBuilder.build());
requestObj.addHeader("Authorization", "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa");

HttpEntityEnclosingRequestBase requestBase = (HttpEntityEnclosingRequestBase) requestObj;
String requestBody = "{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}";
requestBase.setEntity(new StringEntity(requestBody, HTTP.UTF_8));

HttpResponse response = httpclient.execute(requestObj);

HttpEntity responseEntity = response.getEntity();
Object responseObject = EntityUtils.toString(responseEntity);
String responseString = responseObject.toString();

const url = 'https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency';

const options = {
  method: 'PATCH',
  headers: {
    'Authorization': 'Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}})
};

fetch(url, options)
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error(error));

{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}
import java.net.HttpURLConnection
import java.net.URL
import okhttp3.HttpUrl.Companion.toHttpUrl

fun main() {
    val url = URL("https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency")
    val conn = url.openConnection() as HttpURLConnection
    conn.requestMethod = "PATCH"
    conn.setRequestProperty("Authorization", "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa")
    conn.setRequestProperty("Content-Type", "application/json")
    conn.doOutput = true
    conn.outputStream.bufferedWriter().use { it.write("""{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}""") }

    val response = conn.inputStream.bufferedReader().readText()
    println(response)
}

NSURL *url = [NSURL URLWithString:@"https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:@"PATCH"];
[request setValue:@"Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa" forHTTPHeaderField:@"Authorization"];
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
NSData *body = [@"{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}" dataUsingEncoding:NSUTF8StringEncoding];
[request setHTTPBody:body];

NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *task = [session dataTaskWithRequest:request
    completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
        NSString *result = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
        NSLog(@"%@", result);
}];
[task resume];

open Lwt
open Cohttp_lwt_unix

let () =
  let uri = Uri.of_string "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency" in
  let headers = Cohttp.Header.init ()
    |> fun h -> Cohttp.Header.add h "Authorization" "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa"
    |> fun h -> Cohttp.Header.add h "Content-Type" "application/json"
  in
  let body = Cohttp_lwt.Body.of_string {json|{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}|json} in
  Lwt_main.run (
    Client.patch ~headers ~body uri >>= fun (_, body) ->
    Cohttp_lwt.Body.to_string body >|= fun s ->
    print_endline s)

$headers = @{
    "Authorization" = "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa"
    "Content-Type" = "application/json"
}

$body = @'
{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}
'@

$response = Invoke-RestMethod -Uri "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency" -Method PATCH -Headers $headers -Body $body

$response | ConvertTo-Json

library(httr)

url <- "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency"

response <- PATCH(
  url,
  add_headers(Authorization = "Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa"),
  content_type_json(),
  body = "{\"predecessor_task\":{\"id\":\"4000000062005\"},\"successor_task\":{\"id\":\"4000000062005\"},\"dependency_type\":\"FS\",\"link_type\":\"0\",\"lag\":{\"value\":\"2\",\"type\":\"days\"}}"
)

content(response, "text")

import Foundation

let url = URL(string: "https://projects.zoho.com/api/v3/portal/[PORTAL_ID]/projects/23806000097545166/tasks/dependency")!
var request = URLRequest(url: url)
request.httpMethod = "PATCH"
request.setValue("Bearer 1000.03xxxxxxxxxxxxxxxxxa5317.dxxxxxxxxxxxxxxxxxfa", forHTTPHeaderField: "Authorization")
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.httpBody = """
{"predecessor_task":{"id":"4000000062005"},"successor_task":{"id":"4000000062005"},"dependency_type":"FS","link_type":"0","lag":{"value":"2","type":"days"}}
""".data(using: .utf8)

let semaphore = DispatchSemaphore(value: 0)
let task = URLSession.shared.dataTask(with: request) { data, response, error in
    if let data = data, let result = String(data: data, encoding: .utf8) {
        print(result)
    }
    semaphore.signal()
}
task.resume()
semaphore.wait()

Sample Input

Content-Type: application/json
{ "predecessor_task" : { "id" : "4000000062005" }, "successor_task" : { "id" : "4000000062005" }, "dependency_type" : "FS", "link_type" : "0", "lag" : { "value" : "2", "type" : "days" } }

Sample Response

200{ "predecessor_task" : { "id" : 5000000025251 }, "lag" : { "type" : "hrs", "value" : "1.75" }, "dependency_type" : "SS", "successor_task" : { "id" : 5000000025361 } }
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