fix(trading): pick the best node to connect, slow notificatio, init error

apps/trading/components/bootstrapper/bootstrapper.tsx

@@ -1,63 +1,123 @@
 import type { InMemoryCacheConfig } from '@apollo/client';
 import {
-  AppFailure,
   AppLoader,
   NetworkLoader,
-  NodeFailure,
-  NodeGuard,
   useEnvironment,
+  useNodeSwitcherStore,
 } from '@vegaprotocol/environment';
-import { type ReactNode } from 'react';
+import { useEffect, type ReactNode, useState } from 'react';
 import { Web3Provider } from './web3-provider';
 import { useT } from '../../lib/use-t';
 import { DataLoader } from './data-loader';
 import { WalletProvider } from '@vegaprotocol/wallet-react';
 import { useVegaWalletConfig } from '../../lib/hooks/use-vega-wallet-config';
+import { Trans } from 'react-i18next';
+import { Button, Loader, Splash, VLogo } from '@vegaprotocol/ui-toolkit';
+
+const Failure = ({ reason }: { reason?: ReactNode }) => {
+  const t = useT();
+  const setNodeSwitcher = useNodeSwitcherStore((store) => store.setDialogOpen);
+  return (
+    <Splash>
+      <div className="border border-vega-red m-10 mx-auto w-4/5 max-w-3xl rounded-lg overflow-hidden animate-shake">
+        <div className="bg-vega-red text-white px-2 py-2 flex gap-1 items-center font-alpha calt uppercase">
+          <VLogo className="h-4" />
+          <span className="text-lg">{t('Failed to initialize the app')}</span>
+        </div>
+        <div className="p-4 text-left text-sm">
+          <p className="mb-4">{reason}</p>
+          <div className="text-center">
+            <Button className="border-2" onClick={() => setNodeSwitcher(true)}>
+              {t('Change node')}
+            </Button>
+          </div>
+        </div>
+      </div>
+    </Splash>
+  );
+};
+
+const Loading = () => {
+  const [showSlowNotification, setShowSlowNotification] = useState(false);
+  const t = useT();
+  const setNodeSwitcher = useNodeSwitcherStore((store) => store.setDialogOpen);
+  useEffect(() => {
+    setTimeout(() => {
+      if (!showSlowNotification) setShowSlowNotification(true);
+    }, 5000);
+  }, [showSlowNotification]);
+  return (
+    <Splash>
+      <div className="border border-transparent m-10 mx-auto w-4/5 max-w-3xl rounded-lg overflow-hidden">
+        <div className="mt-11 p-4 text-left text-sm">
+          <Loader />
+          {showSlowNotification && (
+            <>
+              <p className="mt-4 text-center">
+                {t(
+                  "It looks like you're connection is slow, try switching to another node."
+                )}
+              </p>
+              <div className="mt-4 text-center">
+                <Button
+                  className="border-2"
+                  onClick={() => setNodeSwitcher(true)}
+                >
+                  {t('Change node')}
+                </Button>
+              </div>
+            </>
+          )}
+        </div>
+      </div>
+    </Splash>
+  );
+};
 
 export const Bootstrapper = ({ children }: { children: ReactNode }) => {
   const t = useT();
-  const { error, VEGA_URL } = useEnvironment();
+
+  const { error, VEGA_URL } = useEnvironment((state) => ({
+    error: state.error,
+    VEGA_URL: state.VEGA_URL,
+  }));
   const config = useVegaWalletConfig();
 
   if (!config) {
     return <AppLoader />;
   }
 
+  const ERR_DATA_LOADER = (
+    <Trans
+      i18nKey="It appears that the connection to the node <0>{{VEGA_URL}}</0> does not return necessary data, try switching to another node."
+      components={[
+        <span key="vega" className="text-muted">
+          {VEGA_URL}
+        </span>,
+      ]}
+      values={{
+        VEGA_URL,
+      }}
+    />
+  );
+
   return (
     <NetworkLoader
       cache={cacheConfig}
-      skeleton={<AppLoader />}
+      skeleton={<Loading />}
-      failure={
+      failure={<Failure reason={error} />}
-        <AppFailure title={t('Could not initialize app')} error={error} />
-      }
-    >
-      <NodeGuard
-        skeleton={<AppLoader />}
-        failure={
-          <NodeFailure
-            title={t('Node: {{VEGA_URL}} is unsuitable', { VEGA_URL })}
-          />
-        }
     >
       <DataLoader
-          skeleton={<AppLoader />}
+        skeleton={<Loading />}
-          failure={
+        failure={<Failure reason={ERR_DATA_LOADER} />}
-            <AppFailure
-              title={t('Could not load market data or asset data')}
-              error={error}
-            />
-          }
       >
         <Web3Provider
-            skeleton={<AppLoader />}
+          skeleton={<Loading />}
-            failure={
+          failure={<Failure reason={t('Could not configure web3 provider')} />}
-              <AppFailure title={t('Could not configure web3 provider')} />
-            }
         >
           <WalletProvider config={config}>{children}</WalletProvider>
         </Web3Provider>
       </DataLoader>
-      </NodeGuard>
     </NetworkLoader>
   );
 };

libs/environment/src/hooks/use-environment.spec.ts

@@ -34,6 +34,16 @@ const createDefaultMockClient = () => {
             blockHeight: '100',
             vegaTime: new Date().toISOString(),
           },
+          networkParametersConnection: {
+            edges: [
+              {
+                node: {
+                  key: 'something',
+                  value: 123,
+                },
+              },
+            ],
+          },
         },
       }),
     subscribe: () => ({
@@ -183,6 +193,16 @@ describe('useEnvironment', () => {
                   blockHeight: '100',
                   vegaTime: new Date(1).toISOString(),
                 },
+                networkParametersConnection: {
+                  edges: [
+                    {
+                      node: {
+                        key: 'something',
+                        value: 123,
+                      },
+                    },
+                  ],
+                },
               },
             });
           }, wait);
@@ -244,6 +264,16 @@ describe('useEnvironment', () => {
               blockHeight: '100',
               vegaTime: new Date().toISOString(),
             },
+            networkParametersConnection: {
+              edges: [
+                {
+                  node: {
+                    key: 'something',
+                    value: 123,
+                  },
+                },
+              ],
+            },
           },
         }),
       subscribe: () => ({

libs/environment/src/hooks/use-environment.ts

@@ -1,5 +1,5 @@
 import { parse as tomlParse } from 'toml';
-import { isValidUrl, LocalStorage } from '@vegaprotocol/utils';
+import { LocalStorage, isValidUrl } from '@vegaprotocol/utils';
 import { useEffect } from 'react';
 import { create } from 'zustand';
 import { createClient } from '@vegaprotocol/apollo-client';
@@ -22,6 +22,7 @@ import uniq from 'lodash/uniq';
 import orderBy from 'lodash/orderBy';
 import first from 'lodash/first';
 import { canMeasureResponseTime, measureResponseTime } from '../utils/time';
+import compact from 'lodash/compact';
 
 type Client = ReturnType<typeof createClient>;
 type ClientCollection = {
@@ -70,10 +71,19 @@ const fetchConfig = async (url?: string) => {
 };
 
 /**
- * Find a suitable node by running a test query and test
+ * Find a suitable nodes by running a test query and test
  * subscription, against a list of clients, first to resolve wins
  */
-const findNode = async (clients: ClientCollection): Promise<string | null> => {
+const findHealthyNodes = async (nodes: string[]) => {
+  const clients: ClientCollection = {};
+  nodes.forEach((url) => {
+    clients[url] = createClient({
+      url,
+      cacheConfig: undefined,
+      retry: false,
+      connectToDevTools: false,
+    });
+  });
   const tests = Object.entries(clients).map((args) => testNode(...args));
   try {
     const nodes = await Promise.all(tests);
@@ -93,11 +103,10 @@ const findNode = async (clients: ClientCollection): Promise<string | null> => {
       ['desc', 'desc', 'asc']
     );
 
-    const best = first(ordered);
+    return ordered;
-    return best ? best.url : null;
   } catch (err) {
     // All tests rejected, no suitable node found
-    return null;
+    return [];
   }
 };
 
@@ -142,6 +151,15 @@ const testQuery = (
       })
       .then((result) => {
         if (result && !result.error) {
+          const netParams = compact(
+            result.data.networkParametersConnection.edges?.map((n) => n?.node)
+          );
+          if (netParams.length === 0) {
+            // any node that doesn't return the network parameters is considered
+            // failed
+            resolve(false);
+            return;
+          }
           const res = {
             blockHeight: Number(result.data.statistics.blockHeight),
             vegaTime: new Date(result.data.statistics.vegaTime),
@@ -600,35 +618,31 @@ export const useEnvironment = create<EnvStore>()((set, get) => ({
     }
 
     const state = get();
-    const storedUrl = LocalStorage.getItem(STORAGE_KEY);
+
+    let storedUrl = LocalStorage.getItem(STORAGE_KEY);
+    if (!isValidUrl(storedUrl)) {
+      // remove invalid data from local storage
+      LocalStorage.removeItem(STORAGE_KEY);
+      storedUrl = null;
+    }
 
     let nodes: string[] | undefined;
     try {
-      nodes = await fetchConfig(state.VEGA_CONFIG_URL);
+      nodes = uniq(
-      const enrichedNodes = uniq(
+        compact([
-        [...nodes, state.VEGA_URL, storedUrl].filter(Boolean) as string[]
+          // url from local storage
+          storedUrl,
+          // url from state (if set via env var)
+          state.VEGA_URL,
+          // urls from network configuration
+          ...(await fetchConfig(state.VEGA_CONFIG_URL)),
+        ])
       );
-      set({ nodes: enrichedNodes });
+      set({ nodes });
     } catch (err) {
       console.warn(`Could not fetch node config from ${state.VEGA_CONFIG_URL}`);
     }
 
-    // Node url found in localStorage, if its valid attempt to connect
-    if (storedUrl) {
-      if (isValidUrl(storedUrl)) {
-        set({ VEGA_URL: storedUrl, status: 'success' });
-        return;
-      } else {
-        LocalStorage.removeItem(STORAGE_KEY);
-      }
-    }
-
-    // VEGA_URL env var is set and is a valid url no need to proceed
-    if (state.VEGA_URL) {
-      set({ status: 'success' });
-      return;
-    }
-
     // No url found in env vars or localStorage, AND no nodes were found in
     // the config fetched from VEGA_CONFIG_URL, app initialization has failed
     if (!nodes || !nodes.length) {
@@ -639,36 +653,37 @@ export const useEnvironment = create<EnvStore>()((set, get) => ({
       return;
     }
 
-    // Create a map of node urls to client instances
+    const healthyNodes = await findHealthyNodes(nodes);
-    const clients: ClientCollection = {};
-    nodes.forEach((url) => {
-      clients[url] = createClient({
-        url,
-        cacheConfig: undefined,
-        retry: false,
-        connectToDevTools: false,
-      });
-    });
 
-    // Find a suitable node to connect to by attempting a query and a
+    // A requested node is a node to which the app was previously connected
-    // subscription, first to fulfill both will be the resulting url.
+    // or the one set via env variable.
-    const url = await findNode(clients);
+    const requestedNodeUrl = storedUrl || state.VEGA_URL;
 
-    if (url !== null) {
+    const bestNode = first(healthyNodes);
+    const requestedNode = healthyNodes.find(
+      (n) => requestedNodeUrl && n.url === requestedNodeUrl
+    );
+    if (!requestedNode) {
+      // remove unhealthy node url from local storage
+      LocalStorage.removeItem(STORAGE_KEY);
+    }
+    // A node's url (VEGA_URL) is either the requsted node (previously
+    // connected or taken form env variable) or the currently best available
+    // node.
+    const url = requestedNode?.url || bestNode?.url;
+
+    if (url != null) {
       set({
         status: 'success',
         VEGA_URL: url,
       });
       LocalStorage.setItem(STORAGE_KEY, url);
-    }
+    } else {
-    // Every node failed either to make a query or retrieve data from
-    // a subscription
-    else {
       set({
         status: 'failed',
-        error: 'No node found',
+        error: 'No suitable node found',
       });
-      console.warn('No suitable vega node was found');
+      console.warn('No suitable node was found');
     }
   },
 }));

libs/environment/src/utils/NodeCheck.graphql

@@ -1,9 +1,19 @@
 query NodeCheck {
+  # statistics needed to get the most recent node in terms of block height
   statistics {
     chainId
     blockHeight
     vegaTime
   }
+  # net params needed to filter out the nodes that are not suitable
+  networkParametersConnection {
+    edges {
+      node {
+        key
+        value
+      }
+    }
+  }
 }
 
 subscription NodeCheckTimeUpdate {

libs/environment/src/utils/__generated__/NodeCheck.ts

@@ -6,7 +6,7 @@ const defaultOptions = {} as const;
 export type NodeCheckQueryVariables = Types.Exact<{ [key: string]: never; }>;
 
 
-export type NodeCheckQuery = { __typename?: 'Query', statistics: { __typename?: 'Statistics', chainId: string, blockHeight: string, vegaTime: any } };
+export type NodeCheckQuery = { __typename?: 'Query', statistics: { __typename?: 'Statistics', chainId: string, blockHeight: string, vegaTime: any }, networkParametersConnection: { __typename?: 'NetworkParametersConnection', edges?: Array<{ __typename?: 'NetworkParameterEdge', node: { __typename?: 'NetworkParameter', key: string, value: string } } | null> | null } };
 
 export type NodeCheckTimeUpdateSubscriptionVariables = Types.Exact<{ [key: string]: never; }>;
 
@@ -21,6 +21,14 @@ export const NodeCheckDocument = gql`
     blockHeight
     vegaTime
   }
+  networkParametersConnection {
+    edges {
+      node {
+        key
+        value
+      }
+    }
+  }
 }
     `;
 

libs/ui-toolkit/src/components/trading-radio-group/radio-group.tsx

@@ -3,6 +3,8 @@ import * as RadioGroupPrimitive from '@radix-ui/react-radio-group';
 import classNames from 'classnames';
 import type { ReactNode } from 'react';
 import { labelClasses } from '../checkbox';
+import { CopyWithTooltip } from '../copy-with-tooltip';
+import { VegaIcon, VegaIconNames } from '../icon';
 
 export interface TradingRadioGroupProps {
   name?: string;
@@ -86,6 +88,7 @@ export const TradingRadio = ({
     'border-vega-clight-700 dark:border-vega-cdark-700'
   );
   return (
+    <span className="inline-flex gap-2">
       <label className={wrapperClasses} htmlFor={id}>
         <RadioGroupPrimitive.Item
           value={value}
@@ -106,5 +109,15 @@ export const TradingRadio = ({
           {label}
         </span>
       </label>
+      {value && value !== 'custom' && (
+        <span className="text-muted">
+          <CopyWithTooltip text={value}>
+            <button>
+              <VegaIcon name={VegaIconNames.COPY} />
+            </button>
+          </CopyWithTooltip>
+        </span>
+      )}
+    </span>
   );
 };

libs/utils/src/lib/is-valid-url.ts

@@ -1,4 +1,4 @@
-export const isValidUrl = (url?: string) => {
+export const isValidUrl = (url?: string | null) => {
   if (!url) return false;
   try {
     new URL(url);