fix: mantle graph node url (#1170)

packages/payment-detection/src/thegraph/client.ts

@@ -8,6 +8,12 @@ import { getSdk as getNearSdk } from './generated/graphql-near';
 const HOSTED_THE_GRAPH_URL =
   'https://api.thegraph.com/subgraphs/name/requestnetwork/request-payments-';
 
+const THE_GRAPH_URL_MANTLE_TESTNET =
+  'https://graph.testnet.mantle.xyz/subgraphs/name/requestnetwork/request-payments-mantle-testnet';
+
+const THE_GRAPH_URL_MANTLE =
+  'https://graph.fusionx.finance/subgraphs/name/requestnetwork/request-payments-mantle';
+
 // NB: the GraphQL client is automatically generated based on files present in ./queries,
 // using graphql-codegen.
 // To generate types, run `yarn codegen`, then open the generated files so that the code editor picks up the changes.
@@ -36,5 +42,9 @@ export const defaultGetTheGraphClient = (network: CurrencyTypes.ChainName) => {
     ? undefined
     : NearChains.isChainSupported(network)
     ? getTheGraphNearClient(`${HOSTED_THE_GRAPH_URL}${network.replace('aurora', 'near')}`)
+    : network === 'mantle'
+    ? getTheGraphClient(THE_GRAPH_URL_MANTLE)
+    : network === 'mantle-testnet'
+    ? getTheGraphClient(THE_GRAPH_URL_MANTLE_TESTNET)
     : getTheGraphClient(`${HOSTED_THE_GRAPH_URL}${network}`);
 };