[beta] Backports (#6497)

* Fix slow balances (#6471)

* Update token updates

* Update token info fetching

* Update logger

* Minor fixes to updates and notifications for balances

* Use Pubsub

* Fix timeout.

* Use pubsub for status.

* Fix signer subscription.

* Process tokens in chunks.

* Fix tokens loaded by chunks

* Linting

* Dispatch tokens asap

* Fix chunks processing.

* Better filter options

* Parallel log fetching.

* Fix signer polling.

* Fix initial block query.

* Token balances updates : the right(er) way

* Better tokens info fetching

* Fixes in token data fetching

* Only fetch what's needed (tokens)

* Fix linting issues

* Revert "Transaction permissioning (#6441)"

This reverts commit eed0e8b03a.

* Revert "Revert "Transaction permissioning (#6441)""

This reverts commit 8f96415e58dde652e5828706eb2639d43416f448.

* Update wasm-tests.

* Fixing balances fetching

* Fix requests tracking in UI

* Fix request watching

* Update the Logger

* PR Grumbles Fixes

* PR Grumbles fixes

* Linting...

* eth_call returns output of contract creations (#6420)

* eth_call returns output of contract creations

* Fix parameters order.

* Save outputs for light client as well.

* Don't accept transactions above block gas limit.

* Expose health status over RPC (#6274)

* Node-health to a separate crate.

* Initialize node_health outside of dapps.

* Expose health over RPC.

* Bring back 412 and fix JS.

* Add health to workspace and tests.

* Fix compilation without default features.

* Fix borked merge.

* Revert to generics to avoid virtual calls.

* Fix node-health tests.

* Add missing trailing comma.

* Fixing/removing failing JS tests.

* do not activate genesis epoch in immediate transition validator contract (#6349)

* Fix memory tracing.

* Add test to cover that.

* ensure balances of constructor accounts are kept

* test balance of spec-constructed account is kept

js/src/api/pubsub/pubsub.js

@@ -16,6 +16,7 @@
 
 import Eth from './eth';
 import Parity from './parity';
+import Signer from './signer';
 import Net from './net';
 
 import { isFunction } from '../util/types';
@@ -29,6 +30,7 @@ export default class Pubsub {
     this._eth = new Eth(transport);
     this._net = new Net(transport);
     this._parity = new Parity(transport);
+    this._signer = new Signer(transport);
   }
 
   get net () {
@@ -43,8 +45,35 @@ export default class Pubsub {
     return this._parity;
   }
 
+  get signer () {
+    return this._signer;
+  }
+
   unsubscribe (subscriptionIds) {
     // subscriptions are namespace independent. Thus we can simply removeListener from any.
     return this._parity.removeListener(subscriptionIds);
   }
+
+  subscribeAndGetResult (f, callback) {
+    return new Promise((resolve, reject) => {
+      let isFirst = true;
+      let onSubscription = (error, data) => {
+        const p1 = error ? Promise.reject(error) : Promise.resolve(data);
+        const p2 = p1.then(callback);
+
+        if (isFirst) {
+          isFirst = false;
+          p2
+            .then(resolve)
+            .catch(reject);
+        }
+      };
+
+      try {
+        f.call(this, onSubscription).catch(reject);
+      } catch (err) {
+        reject(err);
+      }
+    });
+  }
 }