Merge pull request #85 from helium/feat/caching

Add ability to pass cached connection

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@helium/react-native-sdk",
-  "version": "3.0.0",
+  "version": "3.0.2",
   "description": "Helium React Native SDK",
   "main": "lib/commonjs/index.js",
   "module": "lib/module/index.js",

src/Solana/SolanaProvider.tsx

@@ -72,18 +72,21 @@ const SolanaProvider = ({
   heliumWallet,
   cluster,
   rpcEndpoint,
+  connection,
 }: {
   children: ReactNode
   cluster?: 'devnet' | 'testnet' | 'mainnet-beta'
   heliumWallet?: string
-  rpcEndpoint: string
+  rpcEndpoint?: string
+  connection?: web3.Connection
 }) => {
   return (
     <Provider
       value={useSolana({
         cluster,
         heliumWallet,
         rpcEndpoint,
+        connection,
       })}
     >
       {children}

src/Solana/useSolana.tsx

@@ -1,50 +1,49 @@
-import { useCallback, useEffect, useMemo, useState } from 'react'
-import { Buffer } from 'buffer'
+import { AnchorProvider, BN, Program, Wallet } from '@coral-xyz/anchor'
 import Address from '@helium/address'
-import {
-  Connection,
-  PublicKey,
-  VersionedTransaction,
-  AccountInfo,
-  Cluster,
-} from '@solana/web3.js'
 import * as Currency from '@helium/currency-utils'
+import { getBalance } from '@helium/currency-utils'
+import { init as initDc } from '@helium/data-credits-sdk'
+import {
+  entityCreatorKey,
+  init as initHem,
+  iotInfoKey,
+  makerKey,
+  mobileInfoKey,
+  rewardableEntityConfigKey,
+} from '@helium/helium-entity-manager-sdk'
+import { daoKey, init as initHsd, subDaoKey } from '@helium/helium-sub-daos-sdk'
+import * as Hotspot from '@helium/hotspot-utils'
+import { DataCredits } from '@helium/idls/lib/types/data_credits'
+import { HeliumEntityManager } from '@helium/idls/lib/types/helium_entity_manager'
+import { HeliumSubDaos } from '@helium/idls/lib/types/helium_sub_daos'
 import {
   Asset,
-  heliumAddressToSolPublicKey,
+  DC_MINT,
   HNT_MINT,
   IOT_MINT,
   MOBILE_MINT,
+  SearchAssetsOpts,
   getAsset,
+  heliumAddressToSolPublicKey,
   searchAssets,
-  SearchAssetsOpts,
   sendAndConfirmWithRetry,
-  DC_MINT,
 } from '@helium/spl-utils'
-import * as Hotspot from '@helium/hotspot-utils'
-import { init as initHsd, subDaoKey } from '@helium/helium-sub-daos-sdk'
-import { init as initDc } from '@helium/data-credits-sdk'
 import {
   AccountLayout,
-  getAssociatedTokenAddress,
   TOKEN_PROGRAM_ID,
+  getAssociatedTokenAddress,
 } from '@solana/spl-token'
 import {
-  entityCreatorKey,
-  init as initHem,
-  iotInfoKey,
-  makerKey,
-  mobileInfoKey,
-  rewardableEntityConfigKey,
-} from '@helium/helium-entity-manager-sdk'
-import { getBalance } from '@helium/currency-utils'
+  AccountInfo,
+  Cluster,
+  Connection,
+  PublicKey,
+  VersionedTransaction,
+} from '@solana/web3.js'
 import axios from 'axios'
-import { AnchorProvider, Wallet, Program, BN } from '@coral-xyz/anchor'
-import { HeliumEntityManager } from '@helium/idls/lib/types/helium_entity_manager'
-import { HeliumSubDaos } from '@helium/idls/lib/types/helium_sub_daos'
-import { DataCredits } from '@helium/idls/lib/types/data_credits'
-import { daoKey } from '@helium/helium-sub-daos-sdk'
+import { Buffer } from 'buffer'
 import { cellToLatLng } from 'h3-js'
+import { useCallback, useEffect, useMemo, useState } from 'react'
 
 const HOTSPOT_PAGE_LIMIT = 100
 const HOTSPOT_CREATOR_ADDRESS = entityCreatorKey(
@@ -65,14 +64,24 @@ export type HotspotMeta = {
 
 const useSolana = ({
   heliumWallet,
-  rpcEndpoint,
+  rpcEndpoint: rpcEndpointIn,
   cluster: propsCluster = 'devnet',
+  connection: connectionIn,
 }: {
   cluster?: Cluster
   heliumWallet?: string
-  rpcEndpoint: string
+  rpcEndpoint?: string
+  connection?: Connection
 }) => {
-  const connection = useMemo(() => new Connection(rpcEndpoint), [rpcEndpoint])
+  const rpcEndpoint = useMemo(() => {
+    if (!connectionIn && !rpcEndpointIn) {
+      throw new Error('Must provide one of connection, rpcEndpoint')
+    }
+    return (rpcEndpointIn || connectionIn?.rpcEndpoint)!
+  }, [rpcEndpointIn, connectionIn])
+  const connection = useMemo(() => {
+    return connectionIn || new Connection(rpcEndpoint)
+  }, [rpcEndpoint, connectionIn])
   const [dcProgram, setDcProgram] = useState<Program<DataCredits>>()
   const [hemProgram, setHemProgram] = useState<Program<HeliumEntityManager>>()
   const [hsdProgram, setHsdProgram] = useState<Program<HeliumSubDaos>>()
@@ -199,7 +208,7 @@ const useSolana = ({
         owner: wallet,
         recipient,
         connection,
-        url: rpcEndpoint,
+        url: rpcEndpoint!,
       })
     },
     [connection, wallet, rpcEndpoint]