cerebrate/webroot/js/api-helper.js

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/** AJAXApi class providing helpers to perform AJAX request */
class AJAXApi {
static genericRequestHeaders = {
'X-Requested-With': 'XMLHttpRequest'
};
static genericRequestConfigGET = {
headers: new Headers(Object.assign({}, AJAXApi.genericRequestHeaders))
}
static genericRequestConfigPOST = {
headers: new Headers(Object.assign({}, AJAXApi.genericRequestHeaders)),
redirect: 'manual',
method: 'POST',
}
static genericRequestConfigGETJSON = {
headers: new Headers(Object.assign({}, AJAXApi.genericRequestHeaders, {Accept: 'application/json'}))
}
/**
* @namespace
* @property {boolean} provideFeedback - Should a toast be used to provide feedback upon request fulfillment
* @property {(jQuery|string)} statusNode - The node on which the loading overlay should be placed (OverlayFactory.node)
* @property {Object} statusNodeOverlayConfig - The configuration (OverlayFactory.options) of the overlay applied on the status node
* @property {Object} errorToastOptions - The options supported by Toaster#defaultOptions
* @property {Object} successToastOptions - The options supported by Toaster#defaultOptions
*/
static defaultOptions = {
provideFeedback: true,
statusNode: false,
statusNodeOverlayConfig: {},
errorToastOptions: {
delay: 10000
},
successToastOptions: {
},
}
options = {}
loadingOverlay = false
/**
* Instantiate an AJAXApi object.
* @param {Object} options - The options supported by AJAXApi#defaultOptions
*/
constructor(options) {
this.mergeOptions(AJAXApi.defaultOptions)
this.mergeOptions(options)
}
/**
* Based on the current configuration, provide feedback to the user via toast, console or do not
* @param {Object} toastOptions - The options supported by Toaster#defaultOptions
* @param {boolean} isError - If true and toast feedback is disable, write the feedback in the console
* @param {boolean} skip - If true, skip the feedback regardless of the configuration
*/
provideFeedback(toastOptions, isError=false, skip=false) {
const alteredToastOptions = Object.assign(
{},
isError ? AJAXApi.defaultOptions.errorToastOptions : AJAXApi.defaultOptions.successToastOptions,
toastOptions
)
if (!skip) {
if (this.options.provideFeedback) {
UI.toast(alteredToastOptions)
} else {
if (isError) {
console.error(alteredToastOptions.body)
}
}
}
}
provideSuccessFeedback(response, toastOptions, skip=false) {
let alteredToastOptions = Object.assign(
{
'variant': 'success'
},
AJAXApi.defaultOptions.successToastOptions,
toastOptions
)
alteredToastOptions.body = response.message
if (!skip && this.options.provideFeedback) {
UI.toast(alteredToastOptions)
}
}
provideFailureFeedback(response, toastOptions, skip=false) {
let alteredToastOptions = Object.assign(
{
'variant': 'danger'
},
AJAXApi.defaultOptions.errorToastOptions,
toastOptions
)
if (response.message && response.errors) {
if (Array.isArray(response.errors)) {
alteredToastOptions.title = response.message
alteredToastOptions.body = response.errors.join(', ')
} else if (typeof response.errors === 'string') {
alteredToastOptions.title = response.message
alteredToastOptions.body = response.errors
} else {
alteredToastOptions.title = 'There has been a problem with the operation'
alteredToastOptions.body = response.message
}
} else {
alteredToastOptions.title = 'There has been a problem with the operation'
alteredToastOptions.body = response.message
}
if (!skip && this.options.provideFeedback) {
UI.toast(alteredToastOptions)
console.warn(alteredToastOptions.body)
}
}
/**
* Merge newOptions configuration into the current object
* @param {Object} The options supported by AJAXApi#defaultOptions
*/
mergeOptions(newOptions) {
this.options = Object.assign({}, this.options, newOptions)
}
/**
*
* @param {FormData} formData - The data of a form
* @param {Object} dataToMerge - Data to be merge into formData
* @return {FormData} The form data merged with the additional dataToMerge data
*/
static mergeFormData(formData, dataToMerge) {
for (const [fieldName, value] of Object.entries(dataToMerge)) {
formData.set(fieldName, value)
}
return formData
}
/**
* @param {string} url - The URL to fetch
* @param {Object} [options={}] - The options supported by AJAXApi#defaultOptions
* @return {Promise<string>} Promise object resolving to the fetched HTML
*/
static async quickFetchURL(url, options={}) {
const constAlteredOptions = Object.assign({}, {provideFeedback: false}, options)
const tmpApi = new AJAXApi(constAlteredOptions)
return tmpApi.fetchURL(url, constAlteredOptions.skipRequestHooks)
}
/**
* @param {string} url - The URL to fetch
* @param {Object} [options={}] - The options supported by AJAXApi#defaultOptions
* @return {Promise<Object>} Promise object resolving to the fetched HTML
*/
static async quickFetchJSON(url, options={}) {
const constAlteredOptions = Object.assign({}, {provideFeedback: false}, options)
const tmpApi = new AJAXApi(constAlteredOptions)
return tmpApi.fetchJSON(url, constAlteredOptions.skipRequestHooks)
}
/**
* @param {string} url - The URL to fetch
* @param {Object} [options={}] - The options supported by AJAXApi#defaultOptions
* @return {Promise<HTMLFormElement>} Promise object resolving to the fetched form
*/
static async quickFetchForm(url, options={}) {
const constAlteredOptions = Object.assign({}, {provideFeedback: false}, options)
const tmpApi = new AJAXApi(constAlteredOptions)
return tmpApi.fetchForm(url, constAlteredOptions.skipRequestHooks)
}
/**
* @param {HTMLFormElement} form - The form to be posted
* @param {Object} [dataToMerge={}] - Additional data to be integrated or modified in the form
* @param {Object} [options={}] - The options supported by AJAXApi#defaultOptions
* @return {Promise<Object>} Promise object resolving to the result of the POST operation
*/
static async quickPostForm(form, dataToMerge={}, options={}) {
const constAlteredOptions = Object.assign({}, {}, options)
const tmpApi = new AJAXApi(constAlteredOptions)
return tmpApi.postForm(form, dataToMerge, constAlteredOptions.skipRequestHooks)
}
/**
* @param {string} url - The URL to on which to execute the POST
* @param {Object} [data={}] - The data to be posted
* @param {Object} [options={}] - The options supported by AJAXApi#defaultOptions
* @return {Promise<Object>} Promise object resolving to the result of the POST operation
*/
static async quickPostData(url, data={}, options={}) {
const constAlteredOptions = Object.assign({}, {}, options)
const tmpApi = new AJAXApi(constAlteredOptions)
return tmpApi.postData(url, data, constAlteredOptions.skipRequestHooks)
}
/**
* @param {string} url - The URL from which to fetch the form
* @param {Object} [dataToMerge={}] - Additional data to be integrated or modified in the form
* @param {Object} [options={}] - The options supported by AJAXApi#defaultOptions
* @return {Promise<Object>} Promise object resolving to the result of the POST operation
*/
static async quickFetchAndPostForm(url, dataToMerge={}, options={}) {
const constAlteredOptions = Object.assign({}, {}, options)
const tmpApi = new AJAXApi(constAlteredOptions)
return tmpApi.fetchAndPostForm(url, dataToMerge, constAlteredOptions.skipRequestHooks, constAlteredOptions.skipFeedback)
}
/**
* @param {string} url - The URL to fetch
* @param {boolean} [skipRequestHooks=false] - If true, default request hooks will be skipped
* @param {boolean} [skipFeedback=false] - Pass this value to the AJAXApi.provideFeedback function
* @return {Promise<string>} Promise object resolving to the fetched HTML
*/
async fetchURL(url, skipRequestHooks=false, skipFeedback=false) {
if (!skipRequestHooks) {
this.beforeRequest()
}
let toReturn
try {
const response = await fetch(url, AJAXApi.genericRequestConfigGET);
if (!response.ok) {
throw new Error(`Network response was not ok. \`${response.statusText}\``)
}
const dataHtml = await response.text();
this.provideSuccessFeedback({message: 'URL fetched'}, {}, skipFeedback)
toReturn = dataHtml;
} catch (error) {
this.provideFailureFeedback(error, {}, skipFeedback)
toReturn = Promise.reject(error);
} finally {
if (!skipRequestHooks) {
this.afterRequest()
}
}
return toReturn
}
/**
* @param {string} url - The URL to fetch
* @param {boolean} [skipRequestHooks=false] - If true, default request hooks will be skipped
* @param {boolean} [skipFeedback=false] - Pass this value to the AJAXApi.provideFeedback function
* @return {Promise<string>} Promise object resolving to the fetched JSON
*/
async fetchJSON(url, skipRequestHooks=false, skipFeedback=false) {
if (!skipRequestHooks) {
this.beforeRequest()
}
let toReturn
try {
const response = await fetch(url, AJAXApi.genericRequestConfigGETJSON);
if (!response.ok) {
throw new Error(`Network response was not ok. \`${response.statusText}\``)
}
const dataJson = await response.json();
this.provideSuccessFeedback({message: 'JSON fetched'}, {}, skipFeedback)
toReturn = dataJson;
} catch (error) {
this.provideFailureFeedback(error, {}, skipFeedback)
toReturn = Promise.reject(error);
} finally {
if (!skipRequestHooks) {
this.afterRequest()
}
}
return toReturn
}
/**
* @param {string} url - The URL to fetch
* @param {boolean} [skipRequestHooks=false] - If true, default request hooks will be skipped
* @param {boolean} [skipFeedback=false] - Pass this value to the AJAXApi.provideFeedback function
* @return {Promise<HTMLFormElement>} Promise object resolving to the fetched HTML
*/
async fetchForm(url, skipRequestHooks=false, skipFeedback=false) {
if (!skipRequestHooks) {
this.beforeRequest()
}
let toReturn
try {
const response = await fetch(url, AJAXApi.genericRequestConfigGET);
if (!response.ok) {
throw new Error(`Network response was not ok. \`${response.statusText}\``)
}
const formHtml = await response.text();
let tmpNode = document.createElement("div");
tmpNode.innerHTML = formHtml;
let form = tmpNode.getElementsByTagName('form');
if (form.length == 0) {
throw new Error('The server did not return a form element')
}
toReturn = form[0];
} catch (error) {
this.provideFailureFeedback(error, {}, skipFeedback)
toReturn = Promise.reject(error);
} finally {
if (!skipRequestHooks) {
this.afterRequest()
}
}
return toReturn
}
/**
* @param {string} url - The URL to fetch
* @param {Object} dataToPost - data to be posted
* @param {boolean} [skipRequestHooks=false] - If true, default request hooks will be skipped
* @param {boolean} [skipFeedback=false] - Pass this value to the AJAXApi.provideFeedback function
* @return {Promise<string>} Promise object resolving to the result of the POST
*/
async postData(url, dataToPost, skipRequestHooks=false, skipFeedback=false) {
if (!skipRequestHooks) {
this.beforeRequest()
}
let toReturn
try {
let formData = new FormData()
formData = AJAXApi.mergeFormData(formData, dataToPost)
let requestConfig = AJAXApi.genericRequestConfigPOST
requestConfig.headers.append('AUTHORIZATION', '~HACKY-HACK~')
let options = {
...requestConfig,
body: formData,
};
const response = await fetch(url, options);
if (!response.ok) {
throw new Error(`Network response was not ok. \`${response.statusText}\``)
}
const data = await response.json()
if (data.success) {
this.provideFeedback({
variant: 'success',
body: data.message
}, false, skipFeedback);
this.provideSuccessFeedback(data, {}, skipFeedback)
toReturn = data;
} else {
this.provideFailureFeedback(data, {}, skipFeedback)
toReturn = Promise.reject(data.errors);
}
} catch (error) {
this.provideFeedback({
variant: 'danger',
title: 'There has been a problem with the operation',
body: error.message
}, true, skipFeedback);
toReturn = Promise.reject(error);
} finally {
if (!skipRequestHooks) {
this.afterRequest()
}
}
return toReturn
}
/**
* @param {HTMLFormElement} form - The form to be posted
* @param {Object} [dataToMerge={}] - Additional data to be integrated or modified in the form
* @param {boolean} [skipRequestHooks=false] - If true, default request hooks will be skipped
* @param {boolean} [skipFeedback=false] - Pass this value to the AJAXApi.provideFeedback function
* @return {Promise<Object>} Promise object resolving to the result of the POST operation
*/
async postForm(form, dataToMerge={}, skipRequestHooks=false, skipFeedback=false) {
if (!skipRequestHooks) {
this.beforeRequest()
}
if (form === undefined || form.nodeName !== 'FORM') {
throw new Error(`Form argument must be a valid HTMLFormELement.`)
}
let toReturn
let feedbackShown = false
try {
try {
let formData = new FormData(form)
formData = AJAXApi.mergeFormData(formData, dataToMerge)
let requestConfig = AJAXApi.genericRequestConfigPOST
let options = {
...requestConfig,
body: formData,
};
const response = await fetch(form.action, options);
if (!response.ok) {
throw new Error(`Network response was not ok. \`${response.statusText}\``)
}
const clonedResponse = response.clone()
try {
const data = await response.json()
if (data.success) {
this.provideSuccessFeedback(data, {}, skipFeedback)
toReturn = data;
} else {
this.provideFailureFeedback(data, {}, false)
feedbackShown = true
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this.injectFormValidationFeedback(form, data.errors)
toReturn = Promise.reject(data.errors);
}
} catch (error) {
this.provideFeedback({
variant: 'danger',
title: 'There has been a problem with the operation',
body: error.message
}, true, feedbackShown);
toReturn = Promise.reject(error);
}
} catch (error) {
this.provideFeedback({
variant: 'danger',
title: 'There has been a problem with the operation',
body: error.message
}, true, feedbackShown);
toReturn = Promise.reject(error);
}
} catch (error) {
toReturn = Promise.reject(error);
} finally {
if (!skipRequestHooks) {
this.afterRequest()
}
}
return toReturn
}
/**
* @param {string} url - The URL from which to fetch the form
* @param {Object} [dataToMerge={}] - Additional data to be integrated or modified in the form
* @param {boolean} [skipRequestHooks=false] - If true, default request hooks will be skipped
* @return {Promise<Object>} Promise object resolving to the result of the POST operation
*/
async fetchAndPostForm(url, dataToMerge={}, skipRequestHooks=false, skipFeedback=false) {
if (!skipRequestHooks) {
this.beforeRequest()
}
let toReturn
try {
const form = await this.fetchForm(url, true, true);
toReturn = await this.postForm(form, dataToMerge, true, skipFeedback)
} catch (error) {
toReturn = Promise.reject(error);
} finally {
if (!skipRequestHooks) {
this.afterRequest()
}
}
return toReturn
}
/**
* @param {HTMLFormElement} form - The form form which the POST operation is coming from
* @param {Object} [validationErrors={}] - Validation errors reported by the server
*/
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injectFormValidationFeedback(form, validationErrors) {
const formHelper = new FormValidationHelper(form)
formHelper.injectValidationErrors(validationErrors)
}
/** Based on the configuration, show the loading overlay */
beforeRequest() {
if (this.options.statusNode !== false) {
this.toggleLoading(true)
}
}
/** Based on the configuration, hide the loading overlay */
afterRequest() {
if (this.options.statusNode !== false) {
this.toggleLoading(false)
}
}
/** Show or hide the loading overlay */
toggleLoading(loading) {
if (this.loadingOverlay === false) {
this.loadingOverlay = new OverlayFactory(this.options.statusNode, this.options.statusNodeOverlayConfig);
}
if (loading) {
this.loadingOverlay.show()
} else {
this.loadingOverlay.hide()
}
}
}