feat: docker compose maybe
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282
node_modules/@sveltejs/kit/src/runtime/server/page/actions.js
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282
node_modules/@sveltejs/kit/src/runtime/server/page/actions.js
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import * as devalue from 'devalue';
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import { error, json } from '../../../exports/index.js';
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import { normalize_error } from '../../../utils/error.js';
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import { is_form_content_type, negotiate } from '../../../utils/http.js';
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import { HttpError, Redirect, ActionFailure } from '../../control.js';
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import { handle_error_and_jsonify } from '../utils.js';
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/** @param {import('@sveltejs/kit').RequestEvent} event */
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export function is_action_json_request(event) {
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const accept = negotiate(event.request.headers.get('accept') ?? '*/*', [
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'application/json',
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'text/html'
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]);
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return accept === 'application/json' && event.request.method === 'POST';
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}
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/**
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* @param {import('@sveltejs/kit').RequestEvent} event
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* @param {import('types').SSROptions} options
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* @param {import('types').SSRNode['server'] | undefined} server
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*/
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export async function handle_action_json_request(event, options, server) {
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const actions = server?.actions;
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if (!actions) {
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// TODO should this be a different error altogether?
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const no_actions_error = error(405, 'POST method not allowed. No actions exist for this page');
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return action_json(
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{
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type: 'error',
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error: await handle_error_and_jsonify(event, options, no_actions_error)
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},
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{
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status: no_actions_error.status,
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headers: {
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// https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/405
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// "The server must generate an Allow header field in a 405 status code response"
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allow: 'GET'
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}
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}
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);
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}
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check_named_default_separate(actions);
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try {
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const data = await call_action(event, actions);
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if (__SVELTEKIT_DEV__) {
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validate_action_return(data);
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}
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if (data instanceof ActionFailure) {
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return action_json({
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type: 'failure',
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status: data.status,
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// @ts-expect-error we assign a string to what is supposed to be an object. That's ok
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// because we don't use the object outside, and this way we have better code navigation
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// through knowing where the related interface is used.
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data: stringify_action_response(data.data, /** @type {string} */ (event.route.id))
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});
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} else {
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return action_json({
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type: 'success',
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status: data ? 200 : 204,
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// @ts-expect-error see comment above
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data: stringify_action_response(data, /** @type {string} */ (event.route.id))
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});
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}
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} catch (e) {
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const err = normalize_error(e);
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if (err instanceof Redirect) {
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return action_json_redirect(err);
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}
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return action_json(
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{
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type: 'error',
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error: await handle_error_and_jsonify(event, options, check_incorrect_fail_use(err))
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},
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{
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status: err instanceof HttpError ? err.status : 500
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}
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);
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}
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}
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/**
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* @param {HttpError | Error} error
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*/
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function check_incorrect_fail_use(error) {
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return error instanceof ActionFailure
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? new Error('Cannot "throw fail()". Use "return fail()"')
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: error;
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}
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/**
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* @param {import('@sveltejs/kit').Redirect} redirect
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*/
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export function action_json_redirect(redirect) {
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return action_json({
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type: 'redirect',
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status: redirect.status,
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location: redirect.location
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});
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}
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/**
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* @param {import('@sveltejs/kit').ActionResult} data
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* @param {ResponseInit} [init]
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*/
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function action_json(data, init) {
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return json(data, init);
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}
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/**
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* @param {import('@sveltejs/kit').RequestEvent} event
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*/
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export function is_action_request(event) {
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return event.request.method === 'POST';
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}
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/**
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* @param {import('@sveltejs/kit').RequestEvent} event
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* @param {import('types').SSRNode['server'] | undefined} server
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* @returns {Promise<import('@sveltejs/kit').ActionResult>}
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*/
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export async function handle_action_request(event, server) {
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const actions = server?.actions;
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if (!actions) {
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// TODO should this be a different error altogether?
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event.setHeaders({
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// https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/405
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// "The server must generate an Allow header field in a 405 status code response"
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allow: 'GET'
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});
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return {
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type: 'error',
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error: error(405, 'POST method not allowed. No actions exist for this page')
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};
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}
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check_named_default_separate(actions);
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try {
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const data = await call_action(event, actions);
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if (__SVELTEKIT_DEV__) {
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validate_action_return(data);
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}
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if (data instanceof ActionFailure) {
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return {
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type: 'failure',
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status: data.status,
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data: data.data
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};
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} else {
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return {
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type: 'success',
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status: 200,
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// @ts-expect-error this will be removed upon serialization, so `undefined` is the same as omission
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data
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};
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}
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} catch (e) {
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const err = normalize_error(e);
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if (err instanceof Redirect) {
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return {
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type: 'redirect',
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status: err.status,
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location: err.location
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};
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}
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return {
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type: 'error',
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error: check_incorrect_fail_use(err)
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};
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}
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}
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/**
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* @param {import('@sveltejs/kit').Actions} actions
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*/
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function check_named_default_separate(actions) {
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if (actions.default && Object.keys(actions).length > 1) {
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throw new Error(
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'When using named actions, the default action cannot be used. See the docs for more info: https://kit.svelte.dev/docs/form-actions#named-actions'
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);
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}
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}
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/**
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* @param {import('@sveltejs/kit').RequestEvent} event
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* @param {NonNullable<import('types').SSRNode['server']['actions']>} actions
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* @throws {Redirect | ActionFailure | HttpError | Error}
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*/
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async function call_action(event, actions) {
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const url = new URL(event.request.url);
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let name = 'default';
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for (const param of url.searchParams) {
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if (param[0].startsWith('/')) {
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name = param[0].slice(1);
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if (name === 'default') {
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throw new Error('Cannot use reserved action name "default"');
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}
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break;
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}
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}
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const action = actions[name];
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if (!action) {
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throw new Error(`No action with name '${name}' found`);
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}
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if (!is_form_content_type(event.request)) {
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throw new Error(
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`Actions expect form-encoded data (received ${event.request.headers.get('content-type')})`
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);
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}
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return action(event);
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}
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/** @param {any} data */
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function validate_action_return(data) {
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if (data instanceof Redirect) {
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throw new Error('Cannot `return redirect(...)` — use `throw redirect(...)` instead');
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}
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if (data instanceof HttpError) {
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throw new Error(
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'Cannot `return error(...)` — use `throw error(...)` or `return fail(...)` instead'
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);
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}
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}
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/**
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* Try to `devalue.uneval` the data object, and if it fails, return a proper Error with context
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* @param {any} data
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* @param {string} route_id
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*/
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export function uneval_action_response(data, route_id) {
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return try_deserialize(data, devalue.uneval, route_id);
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}
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/**
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* Try to `devalue.stringify` the data object, and if it fails, return a proper Error with context
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* @param {any} data
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* @param {string} route_id
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*/
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function stringify_action_response(data, route_id) {
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return try_deserialize(data, devalue.stringify, route_id);
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}
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/**
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* @param {any} data
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* @param {(data: any) => string} fn
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* @param {string} route_id
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*/
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function try_deserialize(data, fn, route_id) {
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try {
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return fn(data);
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} catch (e) {
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// If we're here, the data could not be serialized with devalue
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const error = /** @type {any} */ (e);
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if ('path' in error) {
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let message = `Data returned from action inside ${route_id} is not serializable: ${error.message}`;
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if (error.path !== '') message += ` (data.${error.path})`;
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throw new Error(message);
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}
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throw error;
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}
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}
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