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import { CallWebhook, Node } from '../../store/flow-definition';
import { generateUUID, createSuccessFailureRouter } from '../../utils';
import { html } from 'lit';
import { resultNameField } from './shared';
import { renderClamped, renderHighlightedText } from '../utils';
// Default headers as {key, value} arrays (format used by key-value editor)
const defaultGetHeaders = [{ key: 'Accept', value: 'application/json' }];
const defaultPostHeaders = [
{ key: 'Accept', value: 'application/json' },
{ key: 'Content-Type', value: 'application/json' }
];
function headersMatchDefaults(headers: any[]): boolean {
if (!headers || headers.length === 0) return true;
const filtered = headers.filter(
(h: any) => (h.key || h.name || '') !== '' || (h.value || '') !== ''
);
if (filtered.length === 0) return true;
for (const defaults of [defaultGetHeaders, defaultPostHeaders]) {
if (
filtered.length === defaults.length &&
filtered.every(
(h: any, i: number) =>
(h.key || h.name) === defaults[i].key && h.value === defaults[i].value
)
) {
return true;
}
}
return false;
}
function getDefaultHeaders(method: string): { key: string; value: string }[] {
if (method === 'POST' || method === 'PUT' || method === 'PATCH') {
return defaultPostHeaders.map((h) => ({ ...h }));
}
return defaultGetHeaders.map((h) => ({ ...h }));
}
// Default headers as Record format (for toFormData, before processFormDataForEditing converts them)
function getDefaultHeadersRecord(method: string): Record<string, string> {
if (method === 'POST' || method === 'PUT' || method === 'PATCH') {
return { Accept: 'application/json', 'Content-Type': 'application/json' };
}
return { Accept: 'application/json' };
}
const defaultPost = `@(json(object(
"contact", object(
"uuid", contact.uuid,
"name", contact.name,
"urn", contact.urn
),
"flow", object(
"uuid", run.flow.uuid,
"name", run.flow.name
),
"results", foreach_value(results, extract_object, "value", "category")
)))`;
export const split_by_webhook: NodeConfig = {
type: 'split_by_webhook',
name: 'Call Webhook',
group: ACTION_GROUPS.services,
flowTypes: [FlowTypes.VOICE, FlowTypes.MESSAGE, FlowTypes.BACKGROUND],
showAsAction: true,
form: {
method: {
type: 'select',
required: true,
options: ['GET', 'POST', 'PUT', 'DELETE', 'HEAD', 'PATCH'],
maxWidth: '120px',
searchable: false
},
url: {
type: 'text',
required: true,
evaluated: true,
maxLength: 8192,
placeholder: 'https://example.com/webhook'
},
headers: {
type: 'key-value',
sortable: true,
keyPlaceholder: 'Header name',
valuePlaceholder: 'Header value',
maxItems: 100,
keyMaxLength: 100,
valueMaxLength: 8192,
minRows: 0,
dependsOn: ['method'],
computeValue: (
values: Record<string, any>,
currentValue: any,
_originalValues?: Record<string, any>
) => {
const method =
Array.isArray(values.method) && values.method.length > 0
? values.method[0].value || values.method[0].name
: values.method;
if (headersMatchDefaults(currentValue)) {
return getDefaultHeaders(method);
}
return currentValue;
}
},
result_name: resultNameField,
body: {
type: 'textarea',
evaluated: true,
maxLength: 20000,
placeholder: 'Request body content (JSON, XML, etc.)',
minHeight: 200,
dependsOn: ['method'],
computeValue: (
values: Record<string, any>,
currentValue: any,
originalValues?: Record<string, any>
) => {
// Check if method is POST (handle both string and select object formats)
const method =
Array.isArray(values.method) && values.method.length > 0
? values.method[0].value || values.method[0].name
: values.method;
if (method === 'POST') {
// For POST, provide the template if body is empty or was never set by user
if (!currentValue || currentValue.trim() === '') {
return defaultPost;
}
} else {
// For non-POST methods, clear the body if it was auto-generated or empty
// Check if the original body was empty (user never specified a body)
const originalBody = originalValues?.body || '';
const isOriginallyEmpty = !originalBody || originalBody.trim() === '';
// Clear if: originally empty, contains default template, or is currently empty
if (
isOriginallyEmpty ||
!currentValue ||
currentValue.trim() === '' ||
currentValue.trim() === defaultPost.trim()
) {
return '';
}
}
return currentValue; // Keep existing value if user has customized it
}
}
},
layout: [
{ type: 'row', items: ['method', 'url'] },
{
type: 'accordion',
sections: [
{
label: 'Headers',
collapsed: true,
getValueCount: (formData: FormData) => {
return formData.headers?.length || 0;
},
items: ['headers']
},
{
label: 'Body',
collapsed: true,
getValueCount: (formData: FormData) => {
return !!(
formData.body &&
formData.body.trim() !== '' &&
formData.body !== defaultPost
);
},
items: ['body']
}
]
},
'result_name'
],
render: (node: Node) => {
const callWebhookAction = node.actions?.find(
(action) => action.type === 'call_webhook'
) as CallWebhook;
const url = callWebhookAction?.url || 'Configure webhook';
return html` <div class="body">
${renderClamped(renderHighlightedText(url, true), url)}
</div>`;
},
toFormData: (node: Node) => {
// Extract data from the existing node structure
const callWebhookAction = node.actions?.find(
(action) => action.type === 'call_webhook'
) as any;
return {
uuid: node.uuid,
method: callWebhookAction?.method || 'GET',
url: callWebhookAction?.url || '',
headers:
callWebhookAction?.headers ||
getDefaultHeadersRecord(callWebhookAction?.method || 'GET'),
body: callWebhookAction?.body || '',
// Legacy webhooks store result_name on the action; modern ones store it
// on the router. Prefer the action so legacy nodes round-trip correctly.
result_name:
callWebhookAction?.result_name || node.router?.result_name || ''
};
},
fromFormData: (formData: FormData, originalNode: Node): Node => {
// Get method selection
const methodSelection =
Array.isArray(formData.method) && formData.method.length > 0
? formData.method[0]
: { value: 'GET', name: 'GET' };
// Find existing call_webhook action to preserve its UUID
const existingCallWebhookAction = originalNode.actions?.find(
(action) => action.type === 'call_webhook'
) as CallWebhook | undefined;
const callWebhookUuid = existingCallWebhookAction?.uuid || generateUUID();
// Legacy webhooks keep the result_name on the action rather than the
// router. Detect them by the presence of result_name on the existing
// action so they continue to round-trip in their original format instead
// of being silently migrated (which would change how results are
// referenced downstream of the flow).
const isLegacyResultName = !!existingCallWebhookAction?.result_name;
const trimmedResultName = formData.result_name?.trim() || '';
// Create call_webhook action
const callWebhookAction: CallWebhook = {
type: 'call_webhook',
uuid: callWebhookUuid,
method: methodSelection.value,
url: formData.url || '',
headers: formData.headers || [],
body: formData.body || ''
};
// Preserve the legacy placement: result_name stays on the action.
if (isLegacyResultName && trimmedResultName !== '') {
callWebhookAction.result_name = trimmedResultName;
}
// Create categories and exits for Success and Failure
const existingCategories = originalNode.router?.categories || [];
const existingExits = originalNode.exits || [];
const existingCases = originalNode.router?.cases || [];
const { router, exits } = createSuccessFailureRouter(
// default() guards against @webhook being null (e.g. the call was
// skipped because the request exceeded the engine's size limit) which
// would otherwise produce lookup errors when the router evaluates
'@(default(webhook.status, 0))',
{
type: 'has_number_between',
arguments: ['200', '299']
},
existingCategories,
existingExits,
existingCases
);
// Build final router with result_name
const finalRouter: any = {
...router
};
// Modern webhooks store result_name on the router. For legacy webhooks the
// result_name lives on the action (set above), so we leave it off the
// router to avoid storing it in both places.
if (!isLegacyResultName && trimmedResultName !== '') {
finalRouter.result_name = trimmedResultName;
}
// Return the complete node
return {
uuid: originalNode.uuid,
actions: [callWebhookAction],
router: finalRouter,
exits: exits
};
},
// Localization support for categories
localizable: 'categories',
nonTranslatableCategories: 'all'
};
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