[SDK-CORE|SUBGRAPH] ERC20x peripherals

packages/ethereum-contracts/contracts/mocks/CFAv1NFTMock.sol

@@ -36,7 +36,6 @@ contract ConstantOutflowNFTMock is ConstantOutflowNFT {
     function mockOwnerOf(uint256 _tokenId) public view returns (address) {
         return _ownerOf(_tokenId);
     }
-
     /// @dev This exposes the _tokenApprovals storage without the requireMinted call
     function mockGetApproved(uint256 _tokenId) public view returns (address) {
         return _tokenApprovals[_tokenId];
@@ -70,7 +69,6 @@ contract ConstantInflowNFTMock is ConstantInflowNFT {
     ) public view returns (FlowNFTData memory flowData) {
         return flowDataByTokenId(_tokenId);
     }
-
     /// @dev This exposes the _tokenApprovals storage without the requireMinted call
     function mockGetApproved(uint256 _tokenId) public view returns (address) {
         return _tokenApprovals[_tokenId];

packages/ethereum-contracts/contracts/superfluid/FlowNFTBase.sol

@@ -423,7 +423,6 @@ abstract contract FlowNFTBase is UUPSProxiable, IFlowNFTBase {
     ) internal virtual {
         _transfer(from, to, tokenId);
     }
-
     /// @dev Deletes the tokenApprovals for `tokenId`
     /// @param tokenId the token id whose approvals we're clearing
     function _burn(uint256 tokenId) internal virtual {

packages/ethereum-contracts/dev-scripts/run-deploy-contracts-and-token.js

@@ -1,10 +1,28 @@
 const fs = require("fs");
+const {ethers} = require("hardhat");
+const superTokenFactoryArtifact = require("@superfluid-finance/ethereum-contracts/build/hardhat/contracts/superfluid/SuperTokenFactory.sol/SuperTokenFactory.json");
+const superTokenArtifact = require("@superfluid-finance/ethereum-contracts/build/hardhat/contracts/superfluid/SuperToken.sol/SuperToken.json");
 const {deployContractsAndToken} = require("./deploy-contracts-and-token");
 
 deployContractsAndToken()
     .then(async ({deployer, tokenDeploymentOutput}) => {
         const frameworkAddresses = await deployer.getFramework();
 
+        const superTokenFactory = await ethers.getContractAt(
+            superTokenFactoryArtifact.abi,
+            frameworkAddresses.superTokenFactory
+        );
+        const superTokenLogicAddress =
+            await superTokenFactory.getSuperTokenLogic();
+        const superTokenLogic = await ethers.getContractAt(
+            superTokenArtifact.abi,
+            superTokenLogicAddress
+        );
+        const constantOutflowNFTAddress =
+            await superTokenLogic.CONSTANT_OUTFLOW_NFT();
+        const constantInflowNFTAddress =
+            await superTokenLogic.CONSTANT_INFLOW_NFT();
+
         const deploymentOutput = {
             network: "mainnet",
             testNetwork: "hardhat",
@@ -17,6 +35,8 @@ deployContractsAndToken()
             nativeAssetSuperTokenAddress:
                 tokenDeploymentOutput.nativeAssetSuperTokenData
                     .nativeAssetSuperTokenAddress,
+            constantOutflowNFTAddress,
+            constantInflowNFTAddress,
         };
 
         // create json output

packages/sdk-core/CHANGELOG.md

@@ -5,6 +5,9 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## [Unreleased]
 
+### Added
+- Support for `ConstantOutflowNFT` and `ConstantInflowNFT` functions
+
 ## [0.6.9] - 2023-09-11
 
 ### Added

packages/sdk-core/src/ConstantInflowNFT.ts

@@ -0,0 +1,18 @@
+import { ethers } from "ethers";
+
+import FlowNFTBase from "./FlowNFTBase";
+import {
+    ConstantInflowNFT__factory,
+    IConstantInflowNFT,
+} from "./typechain-types";
+
+export default class ConstantInflowNFT extends FlowNFTBase {
+    override readonly contract: IConstantInflowNFT;
+    constructor(address: string) {
+        super(address);
+        this.contract = new ethers.Contract(
+            address,
+            ConstantInflowNFT__factory.abi
+        ) as IConstantInflowNFT;
+    }
+}

packages/sdk-core/src/ConstantOutflowNFT.ts

@@ -0,0 +1,18 @@
+import { ethers } from "ethers";
+
+import FlowNFTBase from "./FlowNFTBase";
+import {
+    ConstantOutflowNFT__factory,
+    IConstantOutflowNFT,
+} from "./typechain-types";
+
+export default class ConstantOutflowNFT extends FlowNFTBase {
+    override readonly contract: IConstantOutflowNFT;
+    constructor(address: string) {
+        super(address);
+        this.contract = new ethers.Contract(
+            address,
+            ConstantOutflowNFT__factory.abi
+        ) as IConstantOutflowNFT;
+    }
+}

packages/sdk-core/src/ERC20Token.ts

@@ -2,7 +2,13 @@ import { ethers } from "ethers";
 
 import Operation from "./Operation";
 import { SFError } from "./SFError";
-import { IBaseSuperTokenParams, ITransferFromParams } from "./interfaces";
+import {
+    ERC20AllowanceParams,
+    ERC20BalanceOfParams,
+    IBaseSuperTokenParams,
+    ITransferFromParams,
+    ProviderOrSigner,
+} from "./interfaces";
 import { IERC20Metadata, IERC20Metadata__factory } from "./typechain-types";
 import { normalizeAddress } from "./utils";
 
@@ -32,11 +38,7 @@ export default class ERC20Token {
         owner,
         spender,
         providerOrSigner,
-    }: {
-        owner: string;
-        spender: string;
-        providerOrSigner: ethers.providers.Provider | ethers.Signer;
-    }): Promise<string> => {
+    }: ERC20AllowanceParams): Promise<string> => {
         const normalizedOwner = normalizeAddress(owner);
         const normalizedSpender = normalizeAddress(spender);
         try {
@@ -62,10 +64,7 @@ export default class ERC20Token {
     balanceOf = async ({
         account,
         providerOrSigner,
-    }: {
-        account: string;
-        providerOrSigner: ethers.providers.Provider | ethers.Signer;
-    }): Promise<string> => {
+    }: ERC20BalanceOfParams): Promise<string> => {
         try {
             const normalizedAccount = normalizeAddress(account);
             const balanceOf = await this.contract
@@ -89,7 +88,7 @@ export default class ERC20Token {
     name = async ({
         providerOrSigner,
     }: {
-        providerOrSigner: ethers.providers.Provider | ethers.Signer;
+        providerOrSigner: ProviderOrSigner;
     }): Promise<string> => {
         try {
             const name = await this.contract.connect(providerOrSigner).name();
@@ -111,7 +110,7 @@ export default class ERC20Token {
     symbol = async ({
         providerOrSigner,
     }: {
-        providerOrSigner: ethers.providers.Provider | ethers.Signer;
+        providerOrSigner: ProviderOrSigner;
     }): Promise<string> => {
         try {
             const symbol = await this.contract
@@ -135,7 +134,7 @@ export default class ERC20Token {
     totalSupply = async ({
         providerOrSigner,
     }: {
-        providerOrSigner: ethers.providers.Provider | ethers.Signer;
+        providerOrSigner: ProviderOrSigner;
     }): Promise<string> => {
         try {
             const totalSupply = await this.contract