curl --request POST \
--url https://app.sideshift.app/api/oauth/v1/messages \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"creatorId": "user_creator123",
"content": "Hi! Following up on the campaign."
}
'import requests
url = "https://app.sideshift.app/api/oauth/v1/messages"
payload = {
"creatorId": "user_creator123",
"content": "Hi! Following up on the campaign."
}
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({creatorId: 'user_creator123', content: 'Hi! Following up on the campaign.'})
};
fetch('https://app.sideshift.app/api/oauth/v1/messages', 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://app.sideshift.app/api/oauth/v1/messages",
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([
'creatorId' => 'user_creator123',
'content' => 'Hi! Following up on the campaign.'
]),
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://app.sideshift.app/api/oauth/v1/messages"
payload := strings.NewReader("{\n \"creatorId\": \"user_creator123\",\n \"content\": \"Hi! Following up on the campaign.\"\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://app.sideshift.app/api/oauth/v1/messages")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"creatorId\": \"user_creator123\",\n \"content\": \"Hi! Following up on the campaign.\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://app.sideshift.app/api/oauth/v1/messages")
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 \"creatorId\": \"user_creator123\",\n \"content\": \"Hi! Following up on the campaign.\"\n}"
response = http.request(request)
puts response.read_body{
"data": {
"messageId": "<string>",
"conversationId": "<string>",
"externalMessageId": "<unknown>",
"delivered": true,
"timestamp": "<unknown>"
}
}{
"error": {
"code": "invalid_request",
"message": "name is required",
"requestId": "req_..."
}
}{
"error": {
"code": "unauthorized",
"message": "Missing bearer access token",
"requestId": "req_..."
}
}{
"error": {
"code": "subscription_required",
"message": "The company does not have an active subscription",
"requestId": "req_..."
}
}{
"error": {
"code": "forbidden",
"message": "payouts:write is not available for sandbox (test-mode) grants",
"requestId": "req_..."
}
}{
"error": {
"code": "not_found",
"message": "Resource not found",
"requestId": "req_..."
}
}{
"error": {
"code": "rate_limited",
"message": "Rate limit exceeded",
"requestId": "req_..."
}
}Send a message
Send a DM as the token tenant. messages:write, sandbox-rejected (fires a real DM, best-effort, and persists to Firestore). Provide conversationId to post into an existing conversation or creatorId to start/continue a creator DM. Returns the new message’s id + conversation.
curl --request POST \
--url https://app.sideshift.app/api/oauth/v1/messages \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"creatorId": "user_creator123",
"content": "Hi! Following up on the campaign."
}
'import requests
url = "https://app.sideshift.app/api/oauth/v1/messages"
payload = {
"creatorId": "user_creator123",
"content": "Hi! Following up on the campaign."
}
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({creatorId: 'user_creator123', content: 'Hi! Following up on the campaign.'})
};
fetch('https://app.sideshift.app/api/oauth/v1/messages', 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://app.sideshift.app/api/oauth/v1/messages",
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([
'creatorId' => 'user_creator123',
'content' => 'Hi! Following up on the campaign.'
]),
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://app.sideshift.app/api/oauth/v1/messages"
payload := strings.NewReader("{\n \"creatorId\": \"user_creator123\",\n \"content\": \"Hi! Following up on the campaign.\"\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://app.sideshift.app/api/oauth/v1/messages")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"creatorId\": \"user_creator123\",\n \"content\": \"Hi! Following up on the campaign.\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://app.sideshift.app/api/oauth/v1/messages")
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 \"creatorId\": \"user_creator123\",\n \"content\": \"Hi! Following up on the campaign.\"\n}"
response = http.request(request)
puts response.read_body{
"data": {
"messageId": "<string>",
"conversationId": "<string>",
"externalMessageId": "<unknown>",
"delivered": true,
"timestamp": "<unknown>"
}
}{
"error": {
"code": "invalid_request",
"message": "name is required",
"requestId": "req_..."
}
}{
"error": {
"code": "unauthorized",
"message": "Missing bearer access token",
"requestId": "req_..."
}
}{
"error": {
"code": "subscription_required",
"message": "The company does not have an active subscription",
"requestId": "req_..."
}
}{
"error": {
"code": "forbidden",
"message": "payouts:write is not available for sandbox (test-mode) grants",
"requestId": "req_..."
}
}{
"error": {
"code": "not_found",
"message": "Resource not found",
"requestId": "req_..."
}
}{
"error": {
"code": "rate_limited",
"message": "Rate limit exceeded",
"requestId": "req_..."
}
}Authorizations
OAuth 2.1 authorization code + PKCE (S256). Tokens are tenant-bound (company_id) and scoped. Discover endpoints via /.well-known/oauth-authorization-server.
Headers
Client-chosen key; replaying the same key + body returns the original response, a different body returns 409.
Body
Send a DM as the company. Provide conversationId to post into an existing conversation, or creatorId to start/continue a DM with a creator (exactly one is required). content is the message text. attachment_ids optionally attaches previously-uploaded files to the delivered message.
Response
The message was sent.
Show child attributes
Show child attributes