curl --request POST \
--url https://api.widgetic.com/v1/compositions/{id}/content/validate \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--header 'Idempotency-Key: <idempotency-key>' \
--data '{}'import requests
url = "https://api.widgetic.com/v1/compositions/{id}/content/validate"
payload = {}
headers = {
"Idempotency-Key": "<idempotency-key>",
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {
'Idempotency-Key': '<idempotency-key>',
Authorization: 'Bearer <token>',
'Content-Type': 'application/json'
},
body: JSON.stringify({})
};
fetch('https://api.widgetic.com/v1/compositions/{id}/content/validate', 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.widgetic.com/v1/compositions/{id}/content/validate",
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([
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json",
"Idempotency-Key: <idempotency-key>"
],
]);
$response = curl_exec($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.widgetic.com/v1/compositions/{id}/content/validate"
payload := strings.NewReader("{}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Idempotency-Key", "<idempotency-key>")
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.widgetic.com/v1/compositions/{id}/content/validate")
.header("Idempotency-Key", "<idempotency-key>")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.widgetic.com/v1/compositions/{id}/content/validate")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Idempotency-Key"] = '<idempotency-key>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{}"
response = http.request(request)
puts response.read_body{
"success": true,
"data": {
"valid": true,
"errors": [
{
"path": "content.items[2].caption",
"message": "caption takes text, got a number",
"expected": "text",
"actual": "a number"
}
],
"warnings": [
{
"path": "content.items[2].caption",
"message": "caption takes text, got a number",
"expected": "text",
"actual": "a number"
}
],
"sanitizedContent": {}
},
"meta": {
"page": 1,
"size": 20,
"total": 135,
"limit": 20,
"offset": 0,
"hasNextPage": true,
"hasPreviousPage": false,
"nextCursor": "<string>",
"warnings": [
"<string>"
]
}
}{
"success": false,
"message": "<string>",
"error": {
"code": "RESOURCE_NOT_FOUND",
"message": "Composition not found",
"timestamp": "2026-10-15T10:00:00.000Z",
"param": "name",
"docUrl": "<string>",
"suggestedAction": "<string>",
"retryAfter": 60,
"details": {},
"correlationId": "req_123e4567-e89b-12d3-a456-426614174000"
}
}{
"success": false,
"message": "<string>",
"error": {
"code": "RESOURCE_NOT_FOUND",
"message": "Composition not found",
"timestamp": "2026-10-15T10:00:00.000Z",
"param": "name",
"docUrl": "<string>",
"suggestedAction": "<string>",
"retryAfter": 60,
"details": {},
"correlationId": "req_123e4567-e89b-12d3-a456-426614174000"
}
}{
"success": false,
"message": "<string>",
"error": {
"code": "RESOURCE_NOT_FOUND",
"message": "Composition not found",
"timestamp": "2026-10-15T10:00:00.000Z",
"param": "name",
"docUrl": "<string>",
"suggestedAction": "<string>",
"retryAfter": 60,
"details": {},
"correlationId": "req_123e4567-e89b-12d3-a456-426614174000"
}
}Validate Content
Checks content against the composition’s widget schema without saving it. Send what a content update (PUT /compositions/{id}/content) would store, { "design": {...}, "content": {...} }, or the widget’s values alone. Each value is checked by the kind of field the widget declares for it: text, a number within the limits of its slider, true or false, one of the choices of a dropdown, a color, a font, the address of an image, a date. The items of the widget’s list are checked the same way, and their number against the limits of the list. A value that cannot be what the field holds, or a number outside its range, is an error and valid is false. Text longer than the field takes, a number or true/false sent as text, and a name the widget has no field for are warnings, and valid stays true. The design is not checked here. Nothing is saved and nothing in the body is changed.
curl --request POST \
--url https://api.widgetic.com/v1/compositions/{id}/content/validate \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--header 'Idempotency-Key: <idempotency-key>' \
--data '{}'import requests
url = "https://api.widgetic.com/v1/compositions/{id}/content/validate"
payload = {}
headers = {
"Idempotency-Key": "<idempotency-key>",
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {
'Idempotency-Key': '<idempotency-key>',
Authorization: 'Bearer <token>',
'Content-Type': 'application/json'
},
body: JSON.stringify({})
};
fetch('https://api.widgetic.com/v1/compositions/{id}/content/validate', 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.widgetic.com/v1/compositions/{id}/content/validate",
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([
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json",
"Idempotency-Key: <idempotency-key>"
],
]);
$response = curl_exec($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.widgetic.com/v1/compositions/{id}/content/validate"
payload := strings.NewReader("{}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Idempotency-Key", "<idempotency-key>")
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.widgetic.com/v1/compositions/{id}/content/validate")
.header("Idempotency-Key", "<idempotency-key>")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.widgetic.com/v1/compositions/{id}/content/validate")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Idempotency-Key"] = '<idempotency-key>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{}"
response = http.request(request)
puts response.read_body{
"success": true,
"data": {
"valid": true,
"errors": [
{
"path": "content.items[2].caption",
"message": "caption takes text, got a number",
"expected": "text",
"actual": "a number"
}
],
"warnings": [
{
"path": "content.items[2].caption",
"message": "caption takes text, got a number",
"expected": "text",
"actual": "a number"
}
],
"sanitizedContent": {}
},
"meta": {
"page": 1,
"size": 20,
"total": 135,
"limit": 20,
"offset": 0,
"hasNextPage": true,
"hasPreviousPage": false,
"nextCursor": "<string>",
"warnings": [
"<string>"
]
}
}{
"success": false,
"message": "<string>",
"error": {
"code": "RESOURCE_NOT_FOUND",
"message": "Composition not found",
"timestamp": "2026-10-15T10:00:00.000Z",
"param": "name",
"docUrl": "<string>",
"suggestedAction": "<string>",
"retryAfter": 60,
"details": {},
"correlationId": "req_123e4567-e89b-12d3-a456-426614174000"
}
}{
"success": false,
"message": "<string>",
"error": {
"code": "RESOURCE_NOT_FOUND",
"message": "Composition not found",
"timestamp": "2026-10-15T10:00:00.000Z",
"param": "name",
"docUrl": "<string>",
"suggestedAction": "<string>",
"retryAfter": 60,
"details": {},
"correlationId": "req_123e4567-e89b-12d3-a456-426614174000"
}
}{
"success": false,
"message": "<string>",
"error": {
"code": "RESOURCE_NOT_FOUND",
"message": "Composition not found",
"timestamp": "2026-10-15T10:00:00.000Z",
"param": "name",
"docUrl": "<string>",
"suggestedAction": "<string>",
"retryAfter": 60,
"details": {},
"correlationId": "req_123e4567-e89b-12d3-a456-426614174000"
}
}Authorizations
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Headers
Required: a call without it is refused with 400. A key of your own that names this one request; a UUID is ideal. It is 8 to 50 characters of letters, digits, - and _. Send the same key again when you retry (after a timeout, a dropped connection or a 5xx) and the call is carried out once: the retry gets the first answer back, marked X-Idempotency-Cached: true. The same key with a different body is refused with 422, and a retry that arrives while the first call is still running with 409 (see Retry-After).
8 - 50^[a-zA-Z0-9_-]{8,50}$"9b2d6f0a-3c41-4e5a-8d77-1f2e3a4b5c6d"
The id Widgetic gave the managed user (POST /managed-users). Makes this call for one of your managed users, so that a mistake in your own code cannot reach another customer's work. Send this header, or the other one, never both. Left out, the call works on your whole account, as it always has. With it, the call reaches only that user's compositions and workflows: a list shows only theirs, a composition or a workflow the call makes is filed under them, and one of another user, or one that does not exist, answers 404 (the same answer, so the call cannot be used to find out what another customer has). A managed user that is not yours answers 404 with MANAGED_USER_NOT_FOUND. An empty, repeated or malformed header is 400 with MANAGED_USER_SCOPE_INVALID; an empty header is never read as no header. A call that is about the whole account, such as the list of your managed users, is refused with 403 and MANAGED_USER_SCOPE_ROUTE_NOT_AVAILABLE: send it without the header. Only your API key can send it. The header is a limit the call asks for: whoever holds the key can leave it out, so for a credential that a customer's browser holds, use an editor session. An Idempotency-Key is kept apart for each managed user.
"3f2b8c1e-7a4d-4e0b-9c55-2d1a6b7e8f90"
Your own id for the managed user (its externalId), when you do not keep Widgetic's. Makes this call for one of your managed users, so that a mistake in your own code cannot reach another customer's work. Send this header, or the other one, never both. Left out, the call works on your whole account, as it always has. With it, the call reaches only that user's compositions and workflows: a list shows only theirs, a composition or a workflow the call makes is filed under them, and one of another user, or one that does not exist, answers 404 (the same answer, so the call cannot be used to find out what another customer has). A managed user that is not yours answers 404 with MANAGED_USER_NOT_FOUND. An empty, repeated or malformed header is 400 with MANAGED_USER_SCOPE_INVALID; an empty header is never read as no header. A call that is about the whole account, such as the list of your managed users, is refused with 403 and MANAGED_USER_SCOPE_ROUTE_NOT_AVAILABLE: send it without the header. Only your API key can send it. The header is a limit the call asks for: whoever holds the key can leave it out, so for a credential that a customer's browser holds, use an editor session. An Idempotency-Key is kept apart for each managed user.
1 - 255"customer-1042"
Path Parameters
ID of the composition
Body
The content to check, as a content update stores it: { "design": {...}, "content": {...} }, or the widget's values alone.
Response
The check ran; valid says whether the content passed it.