Mass Cancel Prediction Orders

Mass cancel prediction orders

curl --request POST \
  --url https://api.tradearies.dev/v1/predictions/orders/mass-cancels \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "accountId": "ACCOUNT-0001",
  "symbol": "HORC_1126_Republican"
}
'

import requests

url = "https://api.tradearies.dev/v1/predictions/orders/mass-cancels"

payload = {
    "accountId": "ACCOUNT-0001",
    "symbol": "HORC_1126_Republican"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({accountId: 'ACCOUNT-0001', symbol: 'HORC_1126_Republican'})
};

fetch('https://api.tradearies.dev/v1/predictions/orders/mass-cancels', 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.tradearies.dev/v1/predictions/orders/mass-cancels",
  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([
    'accountId' => 'ACCOUNT-0001',
    'symbol' => 'HORC_1126_Republican'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "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 := "https://api.tradearies.dev/v1/predictions/orders/mass-cancels"

	payload := strings.NewReader("{\n  \"accountId\": \"ACCOUNT-0001\",\n  \"symbol\": \"HORC_1126_Republican\"\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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("https://api.tradearies.dev/v1/predictions/orders/mass-cancels")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"accountId\": \"ACCOUNT-0001\",\n  \"symbol\": \"HORC_1126_Republican\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.tradearies.dev/v1/predictions/orders/mass-cancels")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"accountId\": \"ACCOUNT-0001\",\n  \"symbol\": \"HORC_1126_Republican\"\n}"

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

{
  "success": true,
  "data": {
    "accountId": "<string>",
    "answeredAt": "2023-11-07T05:31:56Z",
    "createdAt": "2023-11-07T05:31:56Z",
    "massCancelId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "outcome": "<string>",
    "rejectReason": "not_supported",
    "rejectText": "<string>",
    "requestType": "all",
    "requestedBy": "<string>",
    "sentAt": "2023-11-07T05:31:56Z",
    "status": "pending",
    "symbol": "<string>",
    "totalAffectedOrders": "<string>"
  }
}

POST

predictions

orders

mass-cancels

Mass cancel prediction orders

curl --request POST \
  --url https://api.tradearies.dev/v1/predictions/orders/mass-cancels \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "accountId": "ACCOUNT-0001",
  "symbol": "HORC_1126_Republican"
}
'

import requests

url = "https://api.tradearies.dev/v1/predictions/orders/mass-cancels"

payload = {
    "accountId": "ACCOUNT-0001",
    "symbol": "HORC_1126_Republican"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({accountId: 'ACCOUNT-0001', symbol: 'HORC_1126_Republican'})
};

fetch('https://api.tradearies.dev/v1/predictions/orders/mass-cancels', 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.tradearies.dev/v1/predictions/orders/mass-cancels",
  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([
    'accountId' => 'ACCOUNT-0001',
    'symbol' => 'HORC_1126_Republican'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "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 := "https://api.tradearies.dev/v1/predictions/orders/mass-cancels"

	payload := strings.NewReader("{\n  \"accountId\": \"ACCOUNT-0001\",\n  \"symbol\": \"HORC_1126_Republican\"\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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("https://api.tradearies.dev/v1/predictions/orders/mass-cancels")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"accountId\": \"ACCOUNT-0001\",\n  \"symbol\": \"HORC_1126_Republican\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.tradearies.dev/v1/predictions/orders/mass-cancels")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"accountId\": \"ACCOUNT-0001\",\n  \"symbol\": \"HORC_1126_Republican\"\n}"

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

{
  "success": true,
  "data": {
    "accountId": "<string>",
    "answeredAt": "2023-11-07T05:31:56Z",
    "createdAt": "2023-11-07T05:31:56Z",
    "massCancelId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "outcome": "<string>",
    "rejectReason": "not_supported",
    "rejectText": "<string>",
    "requestType": "all",
    "requestedBy": "<string>",
    "sentAt": "2023-11-07T05:31:56Z",
    "status": "pending",
    "symbol": "<string>",
    "totalAffectedOrders": "<string>"
  }
}

This endpoint is in closed beta. It is available only to accounts enrolled in the beta, and only on staging (https://api.tradearies.dev). Request and response shapes may change before general availability.

Overview

A mass cancel is one request to the venue. The endpoint returns 202 Accepted with the request, normally in status pending. A 202 does not mean any order is canceled. The venue then does two things:

It answers the request. The request’s status becomes accepted or rejected, with rejectReason and rejectText when refused. Read it with Get Prediction Mass Cancel.
It cancels each matching order separately. Each one arrives as an ordinary order update with state canceled, on the order stream and in List Prediction Orders. The order’s canceled event carries the request’s massCancelId.

Orders that fill before the venue reaches them are not canceled.

Request

{
  "accountId": "ACCOUNT-0001",
  "symbol": "HORC_1126_Republican",
  "outcome": "YES"
}

Field	Notes
`accountId`	Required. The account whose working orders to cancel. You are recorded as the user who asked.
`symbol`	Optional. Cancel only orders in this contract. Omit it to cancel every working order on the account.
`outcome`	Optional, `YES` or `NO`. Cancel only that outcome’s orders. Requires `symbol`.

Response

{
  "success": true,
  "data": {
    "massCancelId": "0192f3a4-7a1b-7c2d-8e3f-456789abcdef",
    "accountId": "ACCOUNT-0001",
    "requestedBy": "user-1",
    "requestType": "by_security",
    "symbol": "HORC_1126_Republican",
    "outcome": "YES",
    "status": "pending",
    "createdAt": "2026-10-18T14:00:00Z",
    "sentAt": "2026-10-18T14:00:00Z"
  }
}

status is one of:

`status`	Meaning
`pending`	Sent. The venue has not answered yet.
`accepted`	The venue took the request. `totalAffectedOrders` is its count, when it gives one.
`rejected`	The venue refused. `rejectReason` is `not_supported`, `unknown_security`, `other` or `business_reject`.
`not_sent`	Nothing reached the venue, and nothing was canceled.

Example

curl -X POST "https://api.tradearies.dev/v1/predictions/orders/mass-cancels" \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"accountId":"ACCOUNT-0001"}'

Errors

Status	`code`	Meaning
`400`	`INVALID_ORDER`	`accountId` is missing, `outcome` was sent without `symbol`, or `outcome` is not `YES` or `NO`.
`400`	`EMPTY_BODY`, `INVALID_JSON`, `UNKNOWN_FIELD`	Missing body, malformed JSON, or a field the endpoint does not accept.
`401`	—	Missing or invalid credentials.
`429`	`ORDER_ENTRY_AT_CAPACITY`	Order entry is at capacity. Nothing was sent; retry shortly.
`503`	`ORDER_ENTRY_UNAVAILABLE`	Order entry is not accepting requests. Nothing was sent.
`504`	`REQUEST_OUTCOME_UNKNOWN`	The request may have reached the venue. Check your orders before sending it again.

Authorizations

Authorization

string

header

required

OAuth2 Bearer token: obtain an access token from the token endpoint and send it in the Authorization header.

Body

application/json

Unknown fields are rejected with 400.

accountId

string

required

The account whose working orders to cancel.

Example:

"ACCOUNT-0001"

outcome

enum<string>

Cancel only this outcome's orders. Requires symbol.

Available options:

YES,

NO

symbol

string

Cancel only orders in this contract. Omit to cancel every working order on the account.

Example:

"HORC_1126_Republican"

Response

Mass cancel sent. The venue has not answered yet.

Standard success envelope used by all success responses. data is endpoint-specific.

success

boolean

required

Example:

true

data

object

A mass cancel request and whether the venue accepted it. It does not list the orders canceled: each arrives as an order update.

Show child attributes

Historical Data

Reference Data

Live Data

Orders

Mass Cancel Prediction Orders

Overview

Request

Response

Example

Errors

Authorizations

Body

Response

​Overview

​Request

​Response

​Example

​Errors

Authorizations

Body

Response

Overview

Request

Response

Example

Errors