Returns contacts of a specific type for a single project
https://api.constructiononline.com/api/v2/Contacts/ProjectID={ProjectID}&types={type}
This endpoint allows users to search through a specific project in their account and only return users of a specific type. Using this endpoint, users can extract company contacts, clients, or subcontractors for a specific project from ConstructionOnline and copy the data into another software platform, or simply store it as a collection or data table.
Requested contact types include Company Contacts, Basic Contacts, ClientLink Users, and TeamLink Users.
Requests
REQUIRED PARAMETERS
ProjectID: integer
- Unique identifier (ID) for the project.
- A full list of your Projects, which will contain their ProjectIDs, can be returned by calling this endpoint. We recommend for users to store these entries in a collection or data table for future reference.
types: string
- Represents a specific type of contact, such as a Company Contact, Basic Contact, TeamLink User, or ClientLink User. Use COMPANY for Company Contacts, BASIC for Basic Contacts, SUBS for TeamLink Users, and CLIENTS for ClientLink Users.
- Types is case sensitive.
Example URL request:
- https://api.constructiononline.com/api/v2/Contacts?ProjectID=1234567&types=SUBS
Example requests in cURL, C#, Python, and JavaScript can be found below:
cURL
# replace {email} with the email address for your ConstructionOnline account
# {password} with your ConstructionOnline password
# {apikey} with your provided API key
# {companyID} with the company ID
curl https://api.constructiononline.com/api/v2/Contacts?ProjectID={ProjectID}&types={type} -u {email}:{password} -H 'APIKey:{apikey}'
C#
/* replace {username} with the email address for your ConstructionOnline account
{password} with your ConstructionOnline password
{apikey} with your provided API key
{ProjectID} with the project's ID
{type} with the desired contact type */
public string GetData(string endpoint) {
string username = "{username}";
string password = "{password}";
string apikey = "{apikey}";
HttpResponseMessage response = null;
HttpClientHandler handler = new HttpClientHandler() { AutomaticDecompression = System.Net.DecompressionMethods.GZip };
using (HttpClient client = new HttpClient(handler)) {
client.Timeout = new TimeSpan(0, 0, 30);
client.BaseAddress = new Uri("http://api.constructiononline.com");
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic",
System.Convert.ToBase64String(System.Text.Encoding.GetEncoding("ISO-8859-1").GetBytes(username + ":" + password)));
client.DefaultRequestHeaders.Add("APIKey", apikey);
client.DefaultRequestHeaders.Add("Accept-Encoding", "gzip");
response = client.GetAsync(endpoint).Result;
}
return response?.Content.ReadAsStringAsync().Result;
}
MessageBox.Show(GetData("api/v2/Contacts?ProjectID={ProjectID}&types={type}"));
Python
#replace {username} with the email address for your ConstructionOnline account
#{password} with your ConstructionOnline password
#{apikey} with your provided API key
#{ProjectID} with the project's ID
#{type} with the desired contact type
import base64, requests, json
apikey = "{apikey}"
username = "{username}"
password = "{password}"
def makeRequest(endpoint):
url = "https://api.constructiononline.com/" + endpoint
userPass = username + ":" + password
headers = {
"APIKey": apikey,
"Accept-Encoding": "gzip, deflate, br",
"Authorization": "Basic " + base64.b64encode(userPass.encode()).decode(),
}
response = requests.get(url, headers=headers)
return json.dumps(json.loads(response.text), indent=2)
#Main Program
print(makeRequest("api/v2/Contacts?ProjectID={ProjectID}&types={type}"))
JavaScript
/* replace {username} with the email address for your ConstructionOnline account
{password} with your ConstructionOnline password
{apikey} with your provided API key
{ProjectID} with the project's ID
{type} with the desired contact type */
username = '{username}';
password = '{password}';
apikey = '{apikey}';
function makeRequest(endpoint) {
auth = btoa('${username}:${password}');
var myHeaders = new Headers();
myHeaders.append("APIKey", apikey);
myHeaders.append("Accept-Encoding", "gzip, deflate, br");
myHeaders.append("Authorization", "Basic ${auth}");
var requestOptions = {
method: 'GET',
headers: myHeaders,
redirect: 'follow'
};
fetch("https://api.constructiononline.com/" + endpoint, requestOptions)
.then(response => response.text())
.then(result => console.log(result))
.catch(error => console.log('error', error));
return response;
};makeRequest("api/v2/Contacts?ProjectID={ProjectID}&types={type}");
Responses
Responses
200: Success
A successful request will return a 200 response with a record of the requested contact(s) in the body, as seen below. Definitions for all returned properties can be found here.
{
"ID": 29,
"FIRSTNAME": "Alice",
"LASTNAME": "Conway",
"EMAIL": "alice@conwayconstruction.com",
"ACCOUNT": "999197",
"LACCESS": "2023-09-21T19:23:10.97",
"LMOD": "2023-04-21T13:51:13.673",
"DISPLAY_NAME": "Alice Conway",
"COMPANY": "Conway Construction",
"ADDRESS": "",
"CITY": "Auburn",
"STATE": "AL",
"ZIP": "36830",
"PHONE": "",
"MOBILE_PHONE": "",
"MOBILE_PROVIDER": "",
"FAX": "",
"LMOD_CON_ID": 29,
"ISCOMPANY": false,
"MIDDLENAME": "",
"WEBSITE": "",
"CREATOR_ID": 29,
"CREATOR_NAME": "",
"TIMEZONE_OFFSET": -5.0,
"AUTO_TIMEZONE": true,
"COMPANY_ID": 4332,
"COMPANY_NAME": "Contronics",
"COUNTRY_SETTING": 1,
"LANGUAGE_SETTING": 1,
"LAT": 32.538900,
"LON": -85.492100,
"COMPANY_PERMISSIONS": 0,
"IS_COMPANY_ADMIN": true,
"OFFLINE_FILES": null,
"FAVORITE_PROJECTS": "1114693,1114695,1367248,1379267,1381613,1383024",
"DATE_FORMAT": 0,
"TIME_FORMAT": 0,
"TIMEZONE_ID": "America/Chicago",
"CONTACT_QUALITY": 0,
"CONTACT_REGION": 0,
"CONTACT_DIVISION": 0,
"CONTACT_OFFICE": 0,
"CONTACT_CATEGORY": 0,
"CONTACT_TRADE": 0,
"FIELD_ID": 0,
"MESSAGE_SIGNATURE": "",
"GENERAL_CALENDAR_COLOR": "#FFA61B"
"IS_LEAD": 0,
"IS_SUB": 0,
"IS_CLIENT": 0
}
404: Error
The server was not able to locate the resource specified in the request. The project ID may have been entered incorrectly or a project with the entered ID does not exist. Alternatively, an unknown contact type may have been requested.
429: Error
The user has surpassed the request rate limit for the hour, day, week, or month.
500: Error
There was an internal server error and the server was unable to complete the request.
Last updated: Dec 21, 2023