117 lines
3.0 KiB
JavaScript
117 lines
3.0 KiB
JavaScript
/**
|
||
* 统一请求封装：自动拼接 baseURL、携带 token、处理 401
|
||
* 使用前需已执行 App()，否则 getApp() 在 require 时可能未就绪，这里在请求时再取 app
|
||
*/
|
||
function getAppSafe() {
|
||
try {
|
||
return getApp()
|
||
} catch (e) {
|
||
return null
|
||
}
|
||
}
|
||
|
||
function getToken() {
|
||
const app = getAppSafe()
|
||
return (app && app.globalData && app.globalData.token) || tt.getStorageSync('token') || ''
|
||
}
|
||
|
||
function getApiBase() {
|
||
const app = getAppSafe()
|
||
return (app && app.globalData && app.globalData.apiBase) || ''
|
||
}
|
||
|
||
/**
|
||
* 清除登录态（401 或主动退出时调用）
|
||
*/
|
||
function clearLoginState() {
|
||
const app = getAppSafe()
|
||
if (app && app.globalData) {
|
||
app.globalData.token = null
|
||
app.globalData.userInfo = null
|
||
app.globalData.openId = null
|
||
}
|
||
try {
|
||
tt.removeStorageSync('token')
|
||
tt.removeStorageSync('userInfo')
|
||
} catch (e) {}
|
||
}
|
||
|
||
/**
|
||
* 发起请求
|
||
* @param {Object} options - 同 tt.request，url 可为相对路径（自动加 apiBase）
|
||
* @param {boolean} options.needAuth - 是否尝试携带 Authorization（有 token 则带上），默认 true
|
||
* @param {boolean} options.optionalAuth - needAuth 为 false 时仍可在有 token 时附带 Bearer
|
||
* @param {boolean} options.allow401 - 401 且本次请求已带 Authorization 时是否清除登录态，默认 true
|
||
*/
|
||
function request(options) {
|
||
const apiBase = getApiBase()
|
||
const url = options.url
|
||
const fullUrl = url.startsWith('http') ? url : `${apiBase.replace(/\/$/, '')}${url.startsWith('/') ? '' : '/'}${url}`
|
||
const needAuth = options.needAuth !== false
|
||
const optionalAuth = options.optionalAuth === true
|
||
const allow401 = options.allow401 !== false
|
||
|
||
const header = {
|
||
'Content-Type': 'application/json',
|
||
...(options.header || {})
|
||
}
|
||
if (needAuth) {
|
||
const token = getToken()
|
||
if (token) header['Authorization'] = `Bearer ${token}`
|
||
} else if (optionalAuth) {
|
||
const token = getToken()
|
||
if (token) header['Authorization'] = `Bearer ${token}`
|
||
}
|
||
|
||
const authHeaderSent = !!header['Authorization']
|
||
|
||
const success = options.success
|
||
const fail = options.fail
|
||
const complete = options.complete
|
||
|
||
return tt.request({
|
||
...options,
|
||
url: fullUrl,
|
||
header,
|
||
success(res) {
|
||
if (res.statusCode === 401 && allow401 && authHeaderSent) {
|
||
clearLoginState()
|
||
}
|
||
if (success) success(res)
|
||
},
|
||
fail(err) {
|
||
if (fail) fail(err)
|
||
},
|
||
complete(res) {
|
||
if (complete) complete(res)
|
||
}
|
||
})
|
||
}
|
||
|
||
/**
|
||
* Promise 版 request，便于 async/await
|
||
*/
|
||
function requestPromise(options) {
|
||
return new Promise((resolve, reject) => {
|
||
request({
|
||
...options,
|
||
success(res) {
|
||
if (res.statusCode >= 200 && res.statusCode < 300) {
|
||
resolve(res)
|
||
} else {
|
||
reject(new Error(res.data && res.data.message ? res.data.message : '请求失败'))
|
||
}
|
||
},
|
||
fail: reject
|
||
})
|
||
})
|
||
}
|
||
|
||
module.exports = {
|
||
request,
|
||
requestPromise,
|
||
getToken,
|
||
getApiBase,
|
||
clearLoginState
|
||
}
|