Update polkadot dependencies an fix node connection issue.

Author: 0xslipk

README.md

@@ -83,12 +83,6 @@ Displays log output from custom `polkadot-westend` service.
 
 Displays log output from custom `polkadot-main` service.
 
-## Mempool Explorer API Definition
-
-<p align="center"><img src="./assets/swagger.png"/></p>
-
-You can read more about the API Definition [here](https://mempool.dot.protofire.io/api/v1/api-docs).
-
 ## Contributing
 
 ### Code of Conduct

api/README.md

@@ -0,0 +1,45 @@
+# Polkadot Mempool Explorer API
+
+Mempool Explorer API Definition [api-docs](https://mempool.dot.protofire.io/api/v1/api-docs).
+
+## Environment setup
+
+ - Install [Node.js](https://nodejs.org/)
+   - Recommended method is by using [NVM](https://github.com/creationix/nvm)
+   - Recommended Node.js version is v12
+
+## Demo
+
+[mempool.dot.protofire.io](https://mempool.dot.protofire.io)
+
+## Custom Polkadot Node
+
+In order to track extrinsics lifecycle. We added a new RPC method ([author_trackExtrinsic](https://github.com/protofire/polkadot-mempool-explorer/blob/develop/api/services/polkadot/custom-rpc-methods.js)) on [Substrate core](https://github.com/jarcodallo/substrate/blob/master/client/rpc-api/src/author/mod.rs).
+
+This basically allows someone to subscribe and track status changes in the extrinsics lifecycle, for example movements getting in or out of queues, and everything that matters for us before including those extrinsics in blocks.
+  
+ - Substrate change: [github.com/paritytech/substrate](https://github.com/jarcodallo/substrate/commits/master)
+ - Polkadot dependencies update: [github.com/paritytech/polkadot](https://github.com/jarcodallo/polkadot/commits/master)
+ - Docker image of the polkadot binary: [hub.docker.com/polkadot](https://hub.docker.com/repository/docker/jarcodallo/polkadot)
+
+## Get Started
+
+In the project directory, you can run:
+
+### `npm start`
+
+Runs the NodeJs service in the development mode.\
+Open [localhost:8081/api/v1/api-docs](http://localhost:8084/api/v1/api-docs) to view it in the browser or Postman.
+
+The service will reload if you make edits.
+
+## Mempool Explorer API Definition
+
+<p align="center"><img src="../assets/swagger.png"/></p>
+
+
+## Endpoints
+
+ - `/networks`: Get networks [specs](https://github.com/protofire/polkadot-mempool-explorer/blob/main/api/routes/explorerApiDocumentation.js#L32-L65).
+ - `/networks/:networkId/reset`: Reset the listener for a network id. [specs](https://github.com/protofire/polkadot-mempool-explorer/blob/main/api/routes/explorerApiDocumentation.js#L66-L95).
+ - `/transactions/:networkId`: Get transactions by network id. [specs](https://github.com/protofire/polkadot-mempool-explorer/blob/main/api/routes/explorerApiDocumentation.js#L96-L133).

api/constants/networks.js

@@ -1,34 +1,29 @@
 const DEFAULT_NETWORK = {
   id: 'polkadot',
   name: 'Polkadot',
-  url: 'wss://cc1-1.polkadot.network',
+  url: 'wss://rpc.polkadot.io',
 };
 
 const LIVE_NETWORKS = [
   DEFAULT_NETWORK,
   {
     id: 'kusama',
     name: 'Kusama',
-    url: 'wss://cc3-5.kusama.network',
+    url: 'wss://kusama-rpc.polkadot.io',
   },
 ];
 
 const TEST_NETWORKS = [
-  {
-    id: 'amber',
-    name: 'Amber',
-    url: 'wss://fullnode.amber.centrifuge.io',
-  },
   {
     id: 'westend2',
     name: 'Westend',
     url: 'wss://westend-rpc.polkadot.io',
   },
-  // {
-  //   id: 'rococo',
-  //   name: 'Rococo',
-  //   url: 'wss://rococo-rpc.polkadot.io',
-  // },
+  {
+    id: 'rococo',
+    name: 'Rococo',
+    url: 'wss://rococo-rpc.polkadot.io',
+  },
   // {
   //   id: 'rococo-tick',
   //   name: 'Rococo Tick',

api/env.js

@@ -21,4 +21,7 @@ module.exports = Object.assign({}, variables, {
   CACHE_MAX_AGE: variables.CACHE_MAX_AGE || 3600000 * 24, // Default 24 hours
   NETWORK_MAX_ITEMS: variables.NETWORK_MAX_ITEMS || 50, // Default 50
   DATE_FORMAT: variables.DATE_FORMAT || 'MMM D, YYYY, h:mm:ss A',
+  WS_PROVIDER_RETRIES: variables.WS_PROVIDER_RETRIES || 5, // Default 10 times
+  WS_PROVIDER_RETRY_DELAY: variables.WS_PROVIDER_RETRY_DELAY || 5000, // Default 5 seconds
+  FETCH_PENDING_EXTRINSICS_DELAY: variables.FETCH_PENDING_EXTRINSICS_DELAY || 5000, // Default 5 seconds
 });