pinafore/routes/_utils/ajax.js
Nolan Lawson 2d5714a2ea
simplify ajax.js implementation (#157)
* simplify ajax.js implementation

* fix typo
2018-04-17 22:08:15 -07:00

103 lines
2.6 KiB
JavaScript

const TIMEOUT = process.browser ? 60000 : 120000
function fetchWithTimeout (url, options) {
return new Promise((resolve, reject) => {
fetch(url, options).then(resolve, reject)
setTimeout(() => reject(new Error(`Timed out after ${TIMEOUT / 1000} seconds`)), TIMEOUT)
})
}
function makeOpts (method, headers) {
return {
method,
headers: Object.assign(headers || {}, {
'Accept': 'application/json'
})
}
}
async function throwErrorIfInvalidResponse (response) {
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, options, timeout) {
let fetchFunc = timeout ? fetchWithTimeout : fetch
let response = await fetchFunc(url, options)
return throwErrorIfInvalidResponse(response)
}
async function _putOrPost (url, body, headers, timeout, method) {
let opts = makeOpts(method, headers)
if (body) {
if (body instanceof FormData) {
opts.body = body
} else {
opts.body = JSON.stringify(body)
opts.headers['Content-Type'] = 'application/json'
}
}
return _fetch(url, opts, timeout)
}
async function _post (url, body, headers, timeout) {
return _putOrPost(url, body, headers, timeout, 'POST')
}
async function _put (url, body, headers, timeout) {
return _putOrPost(url, body, headers, timeout, 'PUT')
}
async function _get (url, headers, timeout) {
return _fetch(url, makeOpts('GET', headers), timeout)
}
async function _delete (url, headers, timeout) {
return _fetch(url, makeOpts('DELETE', headers), timeout)
}
export async function put (url, body, headers) {
return _put(url, body, headers, false)
}
export async function putWithTimeout (url, body, headers) {
return _put(url, body, headers, true)
}
export async function post (url, body, headers) {
return _post(url, body, headers, false)
}
export async function postWithTimeout (url, body, headers) {
return _post(url, body, headers, true)
}
export async function getWithTimeout (url, headers) {
return _get(url, headers, true)
}
export async function get (url, headers) {
return _get(url, headers, false)
}
export async function deleteWithTimeout (url, headers) {
return _delete(url, headers, true)
}
export function paramsString (paramsObject) {
let res = ''
Object.keys(paramsObject).forEach((key, i) => {
if (i > 0) {
res += '&'
}
res += encodeURIComponent(key) + '=' + encodeURIComponent(paramsObject[key])
})
return res
}