Add experimental strategy to resolve erc20 abis

Author: Ferossgp

.changeset/lucky-crabs-float.md

@@ -0,0 +1,5 @@
+---
+'@3loop/transaction-decoder': minor
+---
+
+Add expermiental erc20 abi strategy and change how sql strategy is defined

apps/web/src/lib/decode.ts

@@ -1,25 +1,25 @@
 import { getProvider, RPCProviderLive } from './rpc-provider'
-import { Effect, Layer, ManagedRuntime } from 'effect'
+import { Config, Effect, Layer, ManagedRuntime } from 'effect'
 import {
   DecodedTransaction,
   DecodeResult,
   decodeCalldata as calldataDecoder,
   decodeTransactionByHash,
   EtherscanV2StrategyResolver,
-  FetchTransactionError,
+  ExperimentalErc20AbiStrategyResolver,
   FourByteStrategyResolver,
   OpenchainStrategyResolver,
-  RPCFetchError,
   SourcifyStrategyResolver,
-  UnknownNetwork,
-  UnsupportedEvent,
   AbiStore,
   AbiParams,
   ContractAbiResult,
   ContractMetaStore,
   ContractMetaParams,
   ContractMetaResult,
   PublicClient,
+  ERC20RPCStrategyResolver,
+  NFTRPCStrategyResolver,
+  ProxyRPCStrategyResolver,
 } from '@3loop/transaction-decoder'
 import { SqlAbiStore, SqlContractMetaStore } from '@3loop/transaction-decoder/sql'
 import { Hex } from 'viem'
@@ -29,19 +29,33 @@ import { SqlClient } from '@effect/sql/SqlClient'
 import { ConfigError } from 'effect/ConfigError'
 import { SqlError } from '@effect/sql/SqlError'
 
-const AbiStoreLive = SqlAbiStore.make({
-  default: [
-    EtherscanV2StrategyResolver({
-      apikey: process.env.ETHERSCAN_API_KEY,
-    }),
-    SourcifyStrategyResolver(),
-    OpenchainStrategyResolver(),
-    FourByteStrategyResolver(),
-  ],
-})
+const AbiStoreLive = Layer.unwrapEffect(
+  Effect.gen(function* () {
+    const service = yield* PublicClient
+    const apikey = yield* Config.withDefault(Config.string('ETHERSCAN_API_KEY'), undefined)
+    return SqlAbiStore.make({
+      default: [
+        EtherscanV2StrategyResolver({
+          apikey: apikey,
+        }),
+        ExperimentalErc20AbiStrategyResolver(service),
+        OpenchainStrategyResolver(),
+        SourcifyStrategyResolver(),
+        FourByteStrategyResolver(),
+      ],
+    })
+  }),
+)
 
-const MetaStoreLive = SqlContractMetaStore.make()
+const MetaStoreLive = Layer.unwrapEffect(
+  Effect.gen(function* () {
+    const service = yield* PublicClient
 
+    return SqlContractMetaStore.make({
+      default: [ERC20RPCStrategyResolver(service), NFTRPCStrategyResolver(service), ProxyRPCStrategyResolver(service)],
+    })
+  }),
+)
 const DataLayer = Layer.mergeAll(RPCProviderLive, DatabaseLive)
 const LoadersLayer = Layer.mergeAll(AbiStoreLive, MetaStoreLive)
 const MainLayer = Layer.provideMerge(LoadersLayer, DataLayer) as Layer.Layer<

packages/transaction-decoder/src/abi-strategy/experimental-erc20.ts

@@ -0,0 +1,52 @@
+import * as RequestModel from './request-model.js'
+import { Effect, RequestResolver } from 'effect'
+import { PublicClient } from '../public-client.js'
+import { erc20Abi, getAddress, getContract } from 'viem'
+
+const getLocalFragments = (service: PublicClient, { address, chainID }: RequestModel.GetContractABIStrategy) =>
+  Effect.gen(function* () {
+    const client = yield* service
+      .getPublicClient(chainID)
+      .pipe(
+        Effect.catchAll(() =>
+          Effect.fail(new RequestModel.ResolveStrategyABIError('local-strategy', address, chainID)),
+        ),
+      )
+
+    const inst = getContract({
+      abi: erc20Abi,
+      address: getAddress(address),
+      client: client.client,
+    })
+
+    const decimals = yield* Effect.tryPromise({
+      try: () => inst.read.decimals(),
+      catch: () => new RequestModel.ResolveStrategyABIError('local-strategy', address, chainID),
+    })
+
+    if (decimals != null) {
+      return [
+        {
+          type: 'address',
+          address,
+          chainID,
+          abi: JSON.stringify(erc20Abi),
+        },
+      ] as RequestModel.ContractABI[]
+    }
+
+    return yield* Effect.fail(new RequestModel.ResolveStrategyABIError('local-strategy', address, chainID))
+  })
+
+export const ExperimentalErc20AbiStrategyResolver = (
+  service: PublicClient,
+): RequestModel.ContractAbiResolverStrategy => {
+  return {
+    type: 'address',
+    resolver: RequestResolver.fromEffect((req: RequestModel.GetContractABIStrategy) =>
+      Effect.withSpan(getLocalFragments(service, req), 'AbiStrategy.ExperimentalErc20AbiStrategyResolver', {
+        attributes: { chainID: req.chainID, address: req.address },
+      }),
+    ),
+  }
+}

packages/transaction-decoder/src/abi-strategy/index.ts

@@ -1,6 +1,7 @@
 export * from './blockscout-abi.js'
 export * from './etherscan-abi.js'
 export * from './etherscanv2-abi.js'
+export * from './experimental-erc20.js'
 export * from './fourbyte-abi.js'
 export * from './openchain-abi.js'
 export * from './request-model.js'

packages/transaction-decoder/src/sql/contract-meta-store.ts

@@ -1,24 +1,14 @@
 import { SqlClient } from '@effect/sql'
 import { Effect, Layer } from 'effect'
-import {
-  ContractData,
-  ContractMetaStore,
-  ERC20RPCStrategyResolver,
-  NFTRPCStrategyResolver,
-  ProxyRPCStrategyResolver,
-  PublicClient,
-} from '../effect.js'
+import { ContractData, ContractMetaStore } from '../effect.js'
 
-export const make = () =>
+export const make = (strategies: ContractMetaStore['strategies']) =>
   Layer.effect(
     ContractMetaStore,
     Effect.gen(function* () {
       const sql = yield* SqlClient.SqlClient
-      const publicClient = yield* PublicClient
-
       const table = sql('_loop_decoder_contract_meta_')
 
-      // TODO; add timestamp to the table
       yield* sql`
         CREATE TABLE IF NOT EXISTS ${table} (
           address TEXT NOT NULL,
@@ -37,13 +27,7 @@ export const make = () =>
       )
 
       return ContractMetaStore.of({
-        strategies: {
-          default: [
-            ERC20RPCStrategyResolver(publicClient),
-            NFTRPCStrategyResolver(publicClient),
-            ProxyRPCStrategyResolver(publicClient),
-          ],
-        },
+        strategies,
         set: (key, value) =>
           Effect.gen(function* () {
             if (value.status === 'success') {