This package is a bridge to use the Fula protocols in the react-native. It uses WNFS to create the Merkle dag from files and folders and transfer the DAG using Graphsync to the nodes.
npm install react-native-fula
import { fula } from 'react-native-fula'; // Until the library becomes stable, we suggest importing from github directly
// Creates a new client without creating a filesystem. It is better to call this instead of directly calling init const peerId //returns peerId as string = newClient( identity: string, //privateKey of did identity storePath: string, // leave empty to use the default temp one bloxAddr: string, //leave empty for testing without a backend node exchange: 'noop'|'', //add noop for testing without a backend autoFlush: boolean, //Default to false. Always set to false unless you know what you are doing. explicitly write data to disk after each operation if set to true useRelay: boolean, //default to true. If true it forces the connection through relay refresh: boolean? //forces the fula object to be recreated. default is false )
//Initialize the fula client, which creates the libp2p connection if newClient is not called before, and creates filesystem. Note that input is not an object e.g. init('','','','noop', false) [ peerId, //returns peerId of the created libp2p instance in form of a string of bytes cid, //return the root cid of the WNFS merkle DAG in form of a string private_ref //return the keys needed to decode hte encrypted WNFS tree in form of a string of object ] = await fula.init( identity: string, //bytes of the privateKey of did identity in string format storePath: string, // leave empty to use the default temp one bloxAddr: string, //leave empty for testing without a backend node exchange: 'noop'|'', //add noop for testing without a backend autoFlush: boolean, //Default to false. Always set to false unless you know what you are doing. explicitly write data to disk after each operation if set to true useRelay: boolean, //default to true. If true it forces the connection through relay refresh: boolean? //forces the fula object to be recreated. default is false );
//Creates a Folder const cid //returns the cid of the new root. Note that on every write action the root cid changes. = await fula.mkdir( path: string // This is the Fula path to create a folder and always starts with "root/" and should not start or end with a slash e.g "root/pictures" );
//Write a local file on the device to the Fula tree (upload). It keeps the original file modification date. const cid //returns the cid of the new root. Note that on every write action the root cid changes. = await fula.writeFile( fulaTargetFilename: string, //path to the file on the tree. It should include the filename and extension and start from the "root/". e.g. "root/pictures/cat.jpg" localFilename: string //path to the local file. e.g the file that needs to be uploaded ); //// TODO: This needs to be improved by using stream to not overload the memory for large files
//reads a file on fula tree to a local file on the device (download). It is stream so does not affect memory for large files. const localFilePath //returns the path to the local file and includes the filename = await fula.readFile( fulaTargetFilename: string, //path to the file on the tree. It should include the filename and extension and start from the "root/". e.g. "root/pictures/cat.jpg" localFilename: string //path to the local file. It should include the filename and extension. e.g. "/temp/cat.jpg" );
//shows all files and folders under the specified path on Fula const fileList //returns all the files and folders in a string separated by \n = await fula.ls( path: string, //path to the folder on the tree. It always starts from the "root". e.g. "root" or "root/pictures" ); //// TODO: This needs to be improved by returning an array of files and folders and in chunks to not overload hte memory for large folders
//removes all files and folders at the specified path on Fula const cid //returns the cid of the new root. Note that on every write action the root cid changes. = await fula.rm( path: string, //path to the file or folder on the tree. It always starts from the "root". e.g. "root/pictures" or "root/pictures/cat.jpg" );
//copies the specified file or folder at sourcePath to the filename at targetPath. the path itself(apart from filename) must exist const cid //returns the cid of the new root. Note that on every write action the root cid changes. = await fula.cp( sourcePath: string, //path to the file or folder on the tree. It always starts from the "root". e.g. "root/pictures" or "root/pictures/cat.jpg" targetPath: string, //path to the file or folder on the tree. It always starts from the "root". e.g. "root/pictures2" or "root/pictures2/cat.jpg" );
//moves the specified file or folder at sourcePath to the filename at targetPath. the path itself(apart from filename) must exist const cid //returns the cid of the new root. Note that on every write action the root cid changes. = await fula.mv( sourcePath: string, //path to the file or folder on the tree. It always starts from the "root". e.g. "root/pictures" or "root/pictures/cat.jpg" targetPath: string, //path to the file or folder on the tree. It always starts from the "root". e.g. "root/pictures2" or "root/pictures2/cat.jpg" );
//checks if fula is ready (initialized through newClient or init) const result //returns true if succesful and false if fails = await fula.isReady( filesystemCheck: boolean //Default is true. If true it checks if both WNFS and Fula are ready. If false it only checks fula );
//checks if client can reach server const result //returns true if it can, and false if it cannot = await fula.checkConnection( timeout: number? //default to 20. Maximum time in seconds that checkConnection waits before throwing an error );
//checks if there are any un-synced actions on the client const result //returns true if there are, and false if everything is synced with server = await fula.checkFailedActions( retry: boolean //if true, it tries to sync device with server, if not, it only checks timeout: number? //default to 20. Maximum time in seconds that checkConnection waits before throwing an error );
//lists any cids that are failed to be pushed to backend and only exist on client device const result //returns an array of cids or false if no cid is found = await fula.listFailedActions( cids: string[] //if [], it returns all failed cids, and if provided, it only return the failed cids that are in the array of cids provided as input );
//Gives access to the blox for a specific peerId. This call must be made from the authorizer only. const result //returns true if succesful and false if fails = await fula.setAuth( peerId: string, //peer ID of the app that needs access to the blox allow: boolean, // true to allow and false to remove access );
//shuts down the fula libp2p and datastore await fula.shutdown();
//removes all Fula related data and information (Except the encrypted filesystem) at the specified storage local path const result //returns true if succesful and false if fails = await fula.logout( identity: string, //bytes of the privateKey of did identity in string format storePath: string, // leave empty to use the default temp one );
You can follow the documentation here: https://polkadot.js.org/docs/api/examples/promise/typegen
Alternatively you do the below on a Linux or WSL inside the react-native-fula folder:
curl -H "Content-Type: application/json" -d "{\"id\":\"1\", \"jsonrpc\":\"2.0\", \"method\": \"state_getMetadata\", \"params\":[]}" https://node3.functionyard.fula.network > edgeware.json yarn build:polkadot
Open a cmd or terminal as admin (sudo)
corepack enable
Then cd to the react-native-fula
folder (no need for admin, sudo) and run:
yarn install
to run the example app, run:
yarn example android
Please note the following might not be done in order:
- Initial version with all functions included
- Add WNFS tree encryption key generation from an input (deterministically)
- Improve ead function to use a stream. ( 💯 v1 Release here )
- Connect to backend
- Connect to Blockchain codes using APIs
Name | Description |
---|---|
WNFS for Android | Android build for WNFS rust version |
WNFS for iOS | iOS build for WNFS rust version |
WNFS Build | Android .aar for WNFS |
Fula Build | android .aar file for Fula |
Fx Fotos | Fx Fotos dApp using react-native-fula |
See the contributing guide to learn how to contribute to the repository and the development workflow.
MIT