Update PocketProvider to newer URL format (#2980).

Author: ricmoo

packages/providers/src.ts/pocket-provider.ts

@@ -1,7 +1,6 @@
 "use strict";
 
-import { Network, Networkish } from "@ethersproject/networks";
-import { getStatic } from "@ethersproject/properties";
+import { Network } from "@ethersproject/networks";
 import { ConnectionInfo } from "@ethersproject/web";
 
 import { Logger } from "@ethersproject/logger";
@@ -10,83 +9,34 @@ const logger = new Logger(version);
 
 import { UrlJsonRpcProvider } from "./url-json-rpc-provider";
 
-// These are load-balancer-based application IDs
-const defaultApplicationIds: Record<string, string> = {
-    homestead: "6004bcd10040261633ade990",
-    ropsten: "6004bd4d0040261633ade991",
-    rinkeby: "6004bda20040261633ade994",
-    goerli: "6004bd860040261633ade992",
-};
+const defaultApplicationId = "62e1ad51b37b8e00394bda3b";
+
 
 export class PocketProvider extends UrlJsonRpcProvider {
     readonly applicationId: string;
     readonly applicationSecretKey: string;
     readonly loadBalancer: boolean;
 
-    constructor(network?: Networkish, apiKey?: any) {
-        // We need a bit of creativity in the constructor because
-        // Pocket uses different default API keys based on the network
-
-        if (apiKey == null) {
-            const n = getStatic<(network: Networkish) => Network>(new.target, "getNetwork")(network);
-            if (n) {
-                const applicationId = defaultApplicationIds[n.name];
-                if (applicationId) {
-                    apiKey = {
-                        applicationId: applicationId,
-                        loadBalancer: true
-                    };
-                }
-            }
-
-            // If there was any issue above, we don't know this network
-            if (apiKey == null) {
-                logger.throwError("unsupported network", Logger.errors.INVALID_ARGUMENT, {
-                    argument: "network",
-                    value: network
-                });
-            }
-
-        }
-
-        super(network, apiKey);
-    }
-
     static getApiKey(apiKey: any): any {
-        // Most API Providers allow null to get the default configuration, but
-        // Pocket requires the network to decide the default provider, so we
-        // rely on hijacking the constructor to add a sensible default for us
-
-        if (apiKey == null) {
-            logger.throwArgumentError("PocketProvider.getApiKey does not support null apiKey", "apiKey", apiKey);
-        }
-
         const apiKeyObj: { applicationId: string, applicationSecretKey: string, loadBalancer: boolean } = {
             applicationId: null,
-            loadBalancer: false,
+            loadBalancer: true,
             applicationSecretKey: null
         };
 
         // Parse applicationId and applicationSecretKey
-        if (typeof (apiKey) === "string") {
+        if (apiKey == null) {
+            apiKeyObj.applicationId = defaultApplicationId;
+
+        } else if (typeof (apiKey) === "string") {
             apiKeyObj.applicationId = apiKey;
 
         } else if (apiKey.applicationSecretKey != null) {
-            logger.assertArgument((typeof (apiKey.applicationId) === "string"),
-                "applicationSecretKey requires an applicationId", "applicationId", apiKey.applicationId);
-            logger.assertArgument((typeof (apiKey.applicationSecretKey) === "string"),
-                "invalid applicationSecretKey", "applicationSecretKey", "[REDACTED]");
-
             apiKeyObj.applicationId = apiKey.applicationId;
             apiKeyObj.applicationSecretKey = apiKey.applicationSecretKey;
-            apiKeyObj.loadBalancer = !!apiKey.loadBalancer;
 
         } else if (apiKey.applicationId) {
-            logger.assertArgument((typeof (apiKey.applicationId) === "string"),
-                "apiKey.applicationId must be a string", "apiKey.applicationId", apiKey.applicationId);
-
             apiKeyObj.applicationId = apiKey.applicationId;
-            apiKeyObj.loadBalancer = !!apiKey.loadBalancer;
 
         } else {
             logger.throwArgumentError("unsupported PocketProvider apiKey", "apiKey", apiKey);
@@ -98,17 +48,26 @@ export class PocketProvider extends UrlJsonRpcProvider {
     static getUrl(network: Network, apiKey: any): ConnectionInfo {
         let host: string = null;
         switch (network ? network.name : "unknown") {
+            case "goerli":
+                host = "eth-goerli.gateway.pokt.network";
+                break;
             case "homestead":
                 host = "eth-mainnet.gateway.pokt.network";
                 break;
-            case "ropsten":
-                host = "eth-ropsten.gateway.pokt.network";
+            case "kovan":
+                host = "poa-kovan.gateway.pokt.network";
+                break;
+            case "matic":
+                host = "poly-mainnet.gateway.pokt.network";
+                break;
+            case "maticmum":
+                host = "polygon-mumbai-rpc.gateway.pokt.network";
                 break;
             case "rinkeby":
                 host = "eth-rinkeby.gateway.pokt.network";
                 break;
-            case "goerli":
-                host = "eth-goerli.gateway.pokt.network";
+            case "ropsten":
+                host = "eth-ropsten.gateway.pokt.network";
                 break;
             default:
                 logger.throwError("unsupported network", Logger.errors.INVALID_ARGUMENT, {
@@ -117,19 +76,9 @@ export class PocketProvider extends UrlJsonRpcProvider {
                 });
         }
 
-        let url = null;
-        if (apiKey.loadBalancer) {
-            url = `https:/\/${ host }/v1/lb/${ apiKey.applicationId }`
-        } else {
-            url = `https:/\/${ host }/v1/${ apiKey.applicationId }`
-        }
-
-        const connection: ConnectionInfo = { url };
-
-        // Initialize empty headers
-        connection.headers = {}
+        const url = `https:/\/${ host }/v1/lb/${ apiKey.applicationId }`
 
-        // Apply application secret key
+        const connection: ConnectionInfo = { headers: { }, url };
         if (apiKey.applicationSecretKey != null) {
             connection.user = "";
             connection.password = apiKey.applicationSecretKey
@@ -139,6 +88,6 @@ export class PocketProvider extends UrlJsonRpcProvider {
     }
 
     isCommunityResource(): boolean {
-        return (this.applicationId === defaultApplicationIds[this.network.name]);
+        return (this.applicationId === defaultApplicationId);
     }
 }