Stefanie Doll
2433d8d1fc
* Docs: Fixed keyring examples * Docs: Added Rx examples * [Docs] Added timeout to showcase unsubscribe method in ApiPromise * [Docs] Added timeout to showcase unsubscribe method in ApiPromise * [Docs] Added comments to read_storage example * [Docs] Renamed "transfer_dots' to a more generic 'make_transfer' since it's not only DOT's * [Docs] ApiRx examples for simple_connect, listen_to_blocks (incl. unsubscribe), listen_to_balance_change and read_storage * [Docs] changed back keyring import syntax to require * [Docs] Removed provider from read storage example * [Docs] ApiRx "make transfer" example * [Docs] ApiRx "system events" example * [Docs] ApiRx "transfer events" example * [Docs] Removed unused utility functions import * [Docs] ApiRx 'upgrade chain' example * [Docs] removed generated html files * [Docs] Ficed wrong Readme of listen to blocks example * [Docs added missing import] * [Docs] Removed unsubscribe() example from 'listen to blocks' * [Docs] Added Unsubscribe example for ApiPromise and ApiRx * [Docs] Added links to summary * [Docs] Removed duplicate info/comment from 04_unsubscribe * [Docs] Fixed wording * [Docs] Log actual transaction status in "make_transfer" * [Docs] Changed author name * [Docs] Log actual transaction status in "make_transfer" * [Docs] changed headline of make_transfer example README's * [Docs] changed status.value to status.asFinalised * [Docs] Removed auto-generated html * [Docs] Changed all occurances of status.value.toHex() to status.asFinalised.toHex() * [Docs] Remove call to nonce observable from signAndSend examples * [Docs] Use RxJs' zip() operator instead of 'await Promise.all()' * [Docs] Remove call to nonce observable from 'upgrade_chain' example * [Docs] Changed author * [Docs] Changed wording of balance change example * [Docs] smaller code-review fixes * [Docs] Fix Rx read_storage example * [Docs] use pairwise together with startWith in the Rx balance_change example * [Docs] Wording & little less code * [Docs] Added whitespace * [Docs] Use switchMap instead fo subscribe inside subscribe syntax * [Docs] Fixed import syntax for RxJs examples * [Docs] removed provider * [Docs] WIP read storage make-over * [Docs] update Rx read_storage * [Docs] Read storage example with piped switchMap() * [Docs] Turn null into observable * [Docs] Read storage example added 2nd version using tap() * [Docs] fixed name typo * [Docs] removed tap() example
60 lines
2.1 KiB
JavaScript
60 lines
2.1 KiB
JavaScript
// Import the API & Provider and some utility functions
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const { ApiRx } = require('@polkadot/api');
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const { WsProvider } = require('@polkadot/rpc-provider');
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// import the test keyring (already has dev keys for Alice, Bob, Charlie, Eve & Ferdie)
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const testKeyring = require('@polkadot/keyring/testing');
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const fs = require('fs');
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async function main () {
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// Initialise the provider to connect to the local node
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const provider = new WsProvider('ws://127.0.0.1:9944');
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// Create the API and wait until ready (optional provider passed through)
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const api = await ApiRx.create(provider).toPromise();
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// retrieve the upgrade key from the chain state
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const adminId = await api.query.sudo.key().toPromise();
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// find the actual keypair in the keyring (if this is an changed value, the key
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// needs to be added to the keyring before - this assumes we have defaults, i.e.
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// Alice as the key - and this already exists on the test keyring)
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const keyring = testKeyring.default();
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const adminPair = keyring.getPair(adminId.toString());
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// retrieve the runtime to upgrade to
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const code = fs.readFileSync('./test.wasm').toString('hex');
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const proposal = api.tx.consensus.setCode(`0x${code}`);
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console.log(`Upgrading chain runtime from ${adminId}`);
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api.tx.sudo
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// preform the actual chain upgrade via the sudo module
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.sudo(proposal)
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// sign and send the proposal
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.signAndSend(adminPair)
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// subscribe to overall result
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.subscribe(({ events = [], status, type }) => {
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// Log transfer events
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console.log('Proposal status:', type);
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if (type === 'Finalised') {
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console.error('You have just upgraded your chain');
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console.log('Completed at block hash', status.asFinalised.toHex());
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console.log('Events:');
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// Log system events once the chain update is finalised
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events.forEach(({ phase, event: { data, method, section } }) => {
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console.log('\t', phase.toString(), `: ${section}.${method}`, data.toString());
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});
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process.exit(0);
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}
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});
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}
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main().catch((error) => {
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console.error(error);
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process.exit(-1);
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});
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