@appium/storage-plugin

Appium plugin for server-side file storage

This plugin adds the ability to create a dedicated storage space on the server side, which can be managed from the client side. This can be useful for files like application packages. Only one storage may exist per server process, shared by all testing sessions.

[!WARNING] This plugin is designed to be used with servers deployed in private networks. Consider validating the setup with your security department if you want to enable this plugin at a public Appium server deployment.

Installation

appium plugin install storage

Usage

Like all plugins, this plugin must be explicitly activated when launching the Appium server:

appium --use-plugins=storage

Once the plugin is running, you can call its endpoints (see API section) to manage the storage space. These endpoints can be invoked even without an active Appium session.

By default, the plugin creates a new temporary folder where it manages uploaded files.

Storing a File

The procedure for storing a local file on the Appium server is as follows:

• Calculate the SHA1 hash of the source file
• Decide the name of the destination file in the server storage (it can be the same as the original file name)
• Send a POST request to the /storage/add endpoint, which will return the events and stream websocket paths
• Connect to both web sockets
• Start listening for messages on the events web socket. Each message there is a JSON object wrapped to a string. The message must be either {"value": {"success": true, "name":"app.ipa","sha1":"ccc963411b2621335657963322890305ebe96186"}} to notify about a successful file upload, or {"value": {"error": "<error signature>", "message": "<error message>", "traceback": "<server traceback>"}} to notify about any exceptions during the upload process.
• Start reading the source file into small chunks. The recommended size of a single chunk is 64 KB.
• After each chunk is retrieved, pass it to the stream web socket.
• After the last chunk upload is completed, either close the stream web socket to explicitly notify the server about the upload completion, or wait until the success event is delivered from the events web socket as soon as file hashes successfully match. The server must always deliver either a success or a failure event via the events web socket as described above.

It is also possible to upload multiple files in parallel (up to 20 jobs are supported). Only flat files hierarchies are supported in the storage, no subfolders are allowed. If a file with the same name already exists in the storage, it will be overridden with the new one. If a folder with the same name already exists in the storage, an error will be thrown.

API

Refer to the Appium documentation.

The plugin also supports several environment variables for further customization.

Examples

Check integration tests for a working WebdriverIO example.

License

Apache-2.0