Merge pull request #134 from kosssi/version

feat: Add cozyVersion parameter to remove '/status/' request (offline) 🛀

docs/README.md

@@ -119,11 +119,13 @@ It does not return a value.
  * `cozyURL`: absolute url of the cozy stack
  * `disablePromises`: boolean to make function that returns promise used with a classical "callback as last argument" (default value is *false*)
  * `oauth`: an object with the OAuth parameters, see [OAuth](./oauth.md) for details
+ * `version`: the version of Cozy (2 or 3), it's optional, by default with a request to the server it can deduce automatically the version. (To be specified for an offline mode)
 
 ```javascript
 cozy.client.init({
  cozyURL: 'http://cozy.tools:8080',
  disablePromises: false,
+ version: 3,
  oauth: {
  clientParams: {/*...*/},
  scopes: ["io.cozy.files:GET"],

src/index.js

@@ -141,7 +141,7 @@ class Client {
  this._authstate = AuthNone
  this._authcreds = null
  this._storage = null
- this._version = null
+ this._version = options.version || null
  this._offline = null
 
  const token = options.token
@@ -235,17 +235,20 @@ class Client {
 
  isV2 () {
  if (!this._version) {
- this._version = retry(() => fetch(`${this._url}/status/`), 3)()
+ return retry(() => fetch(`${this._url}/status/`), 3)()
  .then((res) => {
  if (!res.ok) {
  throw new Error('Could not fetch cozy status')
  } else {
  return res.json()
  }
  })
- .then((status) => status.datasystem !== undefined)
+ .then((status) => {
+ this._version = status.datasystem !== undefined ? 2 : 3
+ return this.isV2()
+ })
  }
- return this._version
+ return Promise.resolve(this._version === 2)
  }
 }