Start a session
curl --request POST \
--url http://localhost:3000/api/sessions/start \
--header 'Content-Type: application/json' \
--cookie __Host-argus-session= \
--data '
{
"type": "ROLEPLAY",
"notes": "Evening patrol session"
}
'import requests
url = "http://localhost:3000/api/sessions/start"
payload = {
"type": "ROLEPLAY",
"notes": "Evening patrol session"
}
headers = {
"cookie": "__Host-argus-session=",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {cookie: '__Host-argus-session=', 'Content-Type': 'application/json'},
body: JSON.stringify({type: 'ROLEPLAY', notes: 'Evening patrol session'})
};
fetch('http://localhost:3000/api/sessions/start', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_PORT => "3000",
CURLOPT_URL => "http://localhost:3000/api/sessions/start",
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([
'type' => 'ROLEPLAY',
'notes' => 'Evening patrol session'
]),
CURLOPT_COOKIE => "__Host-argus-session=",
CURLOPT_HTTPHEADER => [
"Content-Type: application/json"
],
]);
$response = curl_exec($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 := "http://localhost:3000/api/sessions/start"
payload := strings.NewReader("{\n \"type\": \"ROLEPLAY\",\n \"notes\": \"Evening patrol session\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("cookie", "__Host-argus-session=")
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.post("http://localhost:3000/api/sessions/start")
.header("cookie", "__Host-argus-session=")
.header("Content-Type", "application/json")
.body("{\n \"type\": \"ROLEPLAY\",\n \"notes\": \"Evening patrol session\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("http://localhost:3000/api/sessions/start")
http = Net::HTTP.new(url.host, url.port)
request = Net::HTTP::Post.new(url)
request["cookie"] = '__Host-argus-session='
request["Content-Type"] = 'application/json'
request.body = "{\n \"type\": \"ROLEPLAY\",\n \"notes\": \"Evening patrol session\"\n}"
response = http.request(request)
puts response.read_body{
"data": {
"id": "cmg5y2ses0005l508ses00001",
"hostId": "cmg5x1k2a0000l508a1b2c3d4",
"coHostId": null,
"type": "ROLEPLAY",
"notes": "Evening patrol session",
"startedAt": "2026-10-06T19:30:00.000Z",
"endedAt": null,
"status": "ACTIVE"
}
}{
"error": {
"code": "HOST_REQUIRED",
"message": "Service requests must specify hostId."
},
"requestId": "3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70"
}{
"error": {
"code": "UNAUTHENTICATED",
"message": "Sign in to continue."
},
"requestId": "3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70"
}{
"error": {
"code": "FORBIDDEN",
"message": "Permission required: sessions.manage."
},
"requestId": "3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70"
}{
"error": {
"code": "STAFF_INACTIVE",
"message": "The specified user is not active staff."
},
"requestId": "3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70"
}{
"error": {
"code": "RATE_LIMITED",
"message": "Too many requests."
},
"requestId": "3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70"
}{
"error": {
"code": "INTERNAL_ERROR",
"message": "The request could not be completed."
},
"requestId": "3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70"
}Sessions
Start a session
Permission: sessions.manage.
Access: Browser session, or a service credential holding the permission as a scope.
Starts the operational session and records attendance for the host and co-host. Only one session can be active. The host defaults to the caller; a service credential must name hostId. Host and co-host must be different, active staff. Audited as session.started.
POST
/
sessions
/
start
Start a session
curl --request POST \
--url http://localhost:3000/api/sessions/start \
--header 'Content-Type: application/json' \
--cookie __Host-argus-session= \
--data '
{
"type": "ROLEPLAY",
"notes": "Evening patrol session"
}
'import requests
url = "http://localhost:3000/api/sessions/start"
payload = {
"type": "ROLEPLAY",
"notes": "Evening patrol session"
}
headers = {
"cookie": "__Host-argus-session=",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {cookie: '__Host-argus-session=', 'Content-Type': 'application/json'},
body: JSON.stringify({type: 'ROLEPLAY', notes: 'Evening patrol session'})
};
fetch('http://localhost:3000/api/sessions/start', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_PORT => "3000",
CURLOPT_URL => "http://localhost:3000/api/sessions/start",
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([
'type' => 'ROLEPLAY',
'notes' => 'Evening patrol session'
]),
CURLOPT_COOKIE => "__Host-argus-session=",
CURLOPT_HTTPHEADER => [
"Content-Type: application/json"
],
]);
$response = curl_exec($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 := "http://localhost:3000/api/sessions/start"
payload := strings.NewReader("{\n \"type\": \"ROLEPLAY\",\n \"notes\": \"Evening patrol session\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("cookie", "__Host-argus-session=")
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.post("http://localhost:3000/api/sessions/start")
.header("cookie", "__Host-argus-session=")
.header("Content-Type", "application/json")
.body("{\n \"type\": \"ROLEPLAY\",\n \"notes\": \"Evening patrol session\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("http://localhost:3000/api/sessions/start")
http = Net::HTTP.new(url.host, url.port)
request = Net::HTTP::Post.new(url)
request["cookie"] = '__Host-argus-session='
request["Content-Type"] = 'application/json'
request.body = "{\n \"type\": \"ROLEPLAY\",\n \"notes\": \"Evening patrol session\"\n}"
response = http.request(request)
puts response.read_body{
"data": {
"id": "cmg5y2ses0005l508ses00001",
"hostId": "cmg5x1k2a0000l508a1b2c3d4",
"coHostId": null,
"type": "ROLEPLAY",
"notes": "Evening patrol session",
"startedAt": "2026-10-06T19:30:00.000Z",
"endedAt": null,
"status": "ACTIVE"
}
}{
"error": {
"code": "HOST_REQUIRED",
"message": "Service requests must specify hostId."
},
"requestId": "3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70"
}{
"error": {
"code": "UNAUTHENTICATED",
"message": "Sign in to continue."
},
"requestId": "3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70"
}{
"error": {
"code": "FORBIDDEN",
"message": "Permission required: sessions.manage."
},
"requestId": "3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70"
}{
"error": {
"code": "STAFF_INACTIVE",
"message": "The specified user is not active staff."
},
"requestId": "3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70"
}{
"error": {
"code": "RATE_LIMITED",
"message": "Too many requests."
},
"requestId": "3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70"
}{
"error": {
"code": "INTERNAL_ERROR",
"message": "The request could not be completed."
},
"requestId": "3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70"
}Authorizations
sessionCookieserviceCredential
The opaque session cookie set by Discord sign-in. Named argus-session outside production. HttpOnly, so scripts cannot read it; same-origin requests send it automatically. Requests other than GET must also carry an Origin header equal to the application's own origin.
Body
application/json
Argus record identifier.
Required string length:
1 - 64Pattern:
^[a-zA-Z0-9_-]+$Argus record identifier.
Required string length:
1 - 64Pattern:
^[a-zA-Z0-9_-]+$Available options:
ROLEPLAY, TRAINING, EVENT Maximum string length:
2000Response
Created.
Show child attributes
Show child attributes