pinafore/routes/_utils/ajax.js

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export const DEFAULT_TIMEOUT = 20000
export const MEDIA_WRITE_TIMEOUT = 90000 // media uploads can take awhile
export const WRITE_TIMEOUT = 45000 // allow more time if the user did a write action
function fetchWithTimeout (url, fetchOptions, timeout) {
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return new Promise((resolve, reject) => {
fetch(url, fetchOptions).then(resolve, reject)
setTimeout(() => reject(new Error(`Timed out after ${timeout / 1000} seconds`)), timeout)
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})
}
function makeFetchOptions (method, headers) {
return {
method,
headers: Object.assign(headers || {}, {
'Accept': 'application/json'
})
}
}
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async function throwErrorIfInvalidResponse (response) {
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let json = await response.json()
if (response.status >= 200 && response.status < 300) {
return json
}
if (json && json.error) {
throw new Error(response.status + ': ' + json.error)
}
throw new Error('Request failed: ' + response.status)
}
async function _fetch (url, fetchOptions, options) {
let response
if (options && options.timeout) {
response = await fetchWithTimeout(url, fetchOptions, options.timeout)
} else {
response = await fetch(url, fetchOptions)
}
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return throwErrorIfInvalidResponse(response)
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}
async function _putOrPost (method, url, body, headers, options) {
let fetchOptions = makeFetchOptions(method, headers)
if (body) {
if (body instanceof FormData) {
fetchOptions.body = body
} else {
fetchOptions.body = JSON.stringify(body)
fetchOptions.headers['Content-Type'] = 'application/json'
}
}
return _fetch(url, fetchOptions, options)
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}
export async function put (url, body, headers, options) {
return _putOrPost('PUT', url, body, headers, options)
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}
export async function post (url, body, headers, options) {
return _putOrPost('POST', url, body, headers, options)
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}
export async function get (url, headers, options) {
return _fetch(url, makeFetchOptions('GET', headers), options)
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}
export async function del (url, headers, options) {
return _fetch(url, makeFetchOptions('DELETE', headers), options)
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}
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export function paramsString (paramsObject) {
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let res = ''
Object.keys(paramsObject).forEach((key, i) => {
if (i > 0) {
res += '&'
}
res += encodeURIComponent(key) + '=' + encodeURIComponent(paramsObject[key])
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})
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return res
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}