по крайней мере, вы будете нуждаться объем: https://www.googleapis.com/auth/drive.metadata.readonly + OAuth (API-Key & Client-ID)
вы можете проверить его по адресу: https://developers.google.com/drive/v3/reference/files/list
в "полях" вход добавить: файлы (iconLink, thumbnailLink)
если вы используете https://apis.google.com/js/api.js, не забудьте добавить домен к API-Key -> HTTP-Referrer & Client-ID -> JavaScript-Source & Forwarding-URI (@https://console.developers.google.com/apis/credentials)
вы можете найти основной образец использования GAPI здесь: https://github.com/google/google-api-javascript-client/blob/51aa25bed4f6c36d8e76fd3b9f7e280ded945c98/samples/loadedDiscovery.html
Я promisified клиенту Gapi немного некоторое время назад, потому что я не любил сочетание обратных вызовов и thenables в методах .. это сработало для меня (предполагая, что api.js уже загружен), но только удерживает в ответе 100 записей файла.
window.gapiPromisified = {
apiKey: 'XXXXXXXXXXX',
clientId: 'XXXXX-XXXXXX.apps.googleusercontent.com'
}
window.gapiPromisified.init = function init() {
return new Promise(resolve => {
gapi.load('client:auth2',() => {
if (!document.getElementById('gapiAuthButton')) {
let authButton = document.createElement('button')
authButton.id = 'gapiAuthButton'
authButton.style.display = 'none'
authButton.style.marginLeft = 'auto'
authButton.style.marginRight = 0
document.body.insertBefore(authButton, document.body.firstChild)
authButton.addEventListener('click',() => {
let GoogleAuth = gapi.auth2.getAuthInstance()
if (GoogleAuth.isSignedIn.get()) {
GoogleAuth.signOut()
} else {
GoogleAuth.signIn()
}
})
}
gapi.client.setApiKey(this.apiKey)
gapi.auth2.init({ client_id: this.clientId })
.then(() => resolve())
})
})
}
window.gapiPromisified.signIn = function signIn() {
return new Promise(resolve => {
let GoogleAuth = gapi.auth2.getAuthInstance()
// Listen for sign-in state changes
GoogleAuth.isSignedIn.listen(isSignedIn => {
let authButton = document.getElementById('gapiAuthButton')
if (isSignedIn) {
authButton.textContent = 'Sign-out'
resolve()
} else {
authButton.textContent = 'Sign-in'
}
})
// Handle the initial sign-in state
let authButton = document.getElementById('gapiAuthButton')
let isSignedIn = GoogleAuth.isSignedIn.get()
authButton.textContent = (isSignedIn) ? 'Sign-out' : 'Sign-in'
document.getElementById('gapiAuthButton').style.display = 'block'
if (isSignedIn) {
resolve()
} else {
GoogleAuth.signIn()
}
})
}
window.gapiPromisified.getReady = function getReady() {
if (!gapi.hasOwnProperty('auth2')) {
return this.init()
.then(() => this.signIn())
} else {
if (gapi.auth2.getAuthInstance().isSignedIn.get()) {
return Promise.resolve()
} else {
return this.signIn()
}
}
}
window.gapiPromisified.getScopes = function getScopes (scopes) {
return new Promise((resolve, reject) => {
let GoogleUser = gapi.auth2.getAuthInstance().currentUser.get()
if (GoogleUser.hasGrantedScopes(scopes)) {
resolve()
} else {
// method returns goog.Thenable
GoogleUser.grant({ 'scope': scopes })
.then(onFulfilled => {
resolve(onFulfilled)
}, onRejected => {
reject(onRejected)
})
}
})
}
window.gapiPromisified.loadAPI = function loadAPI (urlOrObject) {
return new Promise((resolve, reject) => {
// method returns goog.Thenable
gapi.client.load(urlOrObject)
.then(onFulfilled => {
resolve(onFulfilled)
}, onRejected => {
reject(onRejected)
})
})
}
window.gapiPromisified.metadata = function metadata() {
return new Promise((resolve, reject) => {
this.getReady()
.then(() => this.getScopes('https://www.googleapis.com/auth/drive.metadata.readonly'))
.then(() => this.loadAPI('https://www.googleapis.com/discovery/v1/apis/drive/v3/rest'))
.then(() => {
gapi.client.drive.files.list({
fields: 'files(iconLink,thumbnailLink)'
})
.then(onFulfilled => {
resolve(onFulfilled)
}, onRejected => {
reject(onRejected)
})
})
})
}
window.gapiPromisified.metadata()
.then(res => {
res.result.files.forEach(file => {
console.log(file.iconLink)
console.log(file.thumbnailLink)
})
})