@defihelper/provider-keeper

ProviderKeeper

• Overview
• Getting Started

Overview

ProviderKeeper implements a Signature Provider for Signer protocol library.

Getting Started

Library installation

To install Signer and ProviderKeeper libraries use

npm i @waves/signer @waves/provider-keeper

Library initialization

Add library initialization to your app.

Please note, that the Keeper extension API may not be ready on the page yet, so you should execute the asynchronous signer.setProvider(keeper) using await.

• For Testnet:

  import { Signer } from '@waves/signer';
  import { ProviderKeeper } from '@waves/provider-keeper';
  
  const signer = new Signer({
      // Specify URL of the node on Testnet
      NODE_URL: 'https://nodes-testnet.wavesnodes.com'
  });
  const authData = {
      data: 'server generated string',
  }
  const keeper = new ProviderKeeper(authData);
  await signer.setProvider(keeper);

• For Mainnet:

  import { Signer } from '@waves/signer';
  import { ProviderKeeper } from '@waves/provider-keeper';
  
  const signer = new Signer();
  const authData = {
      data: 'server generated string',
  }
  const keeper = new ProviderKeeper(authData);
  await signer.setProvider(keeper);

Basic example

Now your application is ready to work with Waves Platform. Let's test it by implementing basic functionality.

For example, we could try to authenticate user and transfer funds:

const user = await signer.login();
const [transfer] = await signer
  .transfer({
      recipient: '3Myqjf1D44wR8Vko4Tr5CwSzRNo2Vg9S7u7',
      amount: 100000,  // equals to 0.001 WAVES
      assetId: null,   // equals to WAVES
  })
  .broadcast();

Or invoke some dApp:

const [invoke] = await signer
  .invoke({
      dApp: '3Fb641A9hWy63K18KsBJwns64McmdEATgJd',
      fee: 1000000,
      payment: [{
          assetId: '73pu8pHFNpj9tmWuYjqnZ962tXzJvLGX86dxjZxGYhoK',
          amount: 7,
      }],
      call: {
          function: 'foo',
          args: [
              { type: 'integer', value: 1 },
              { type: 'binary', value: 'base64:AAA=' },
              { type: 'string', value: 'foo' }
          ],
      },
  })
  .broadcast();

For more examples see Signer documentation.

How to build

npm ci
npm run build