Reduce indexes ignore approvals

Author: moose-code

config.yaml

@@ -9,7 +9,6 @@ field_selection:
 contracts:
   - name: ERC20
     events:
-      - event: "Approval(address indexed owner, address indexed spender, uint256 value)"
       - event: "Transfer(address indexed from, address indexed to, uint256 value)"
 
 chains:

schema.graphql

@@ -7,21 +7,21 @@ enum TransferType {
 type Transfer @index(fields: ["token", ["blockTimestamp", "DESC"]]) {
   id: ID!                    # ${chainId}_${token}_${blockNumber}_${logIndex}
   chainId: Int!
-  token: String! @index
+  token: String!
   blockNumber: Int!
   blockTimestamp: Int!
   logIndex: Int!
   txHash: String! @index
-  from: String! @index
-  to: String! @index
+  from: String!
+  to: String!
   value: BigInt!
   transferType: TransferType!
 }
 
 type Account @index(fields: ["token", ["balance", "DESC"]]) {
   id: ID!                    # ${chainId}-${token}-${address}
-  chainId: Int! @index
-  token: String! @index
+  chainId: Int!
+  token: String!
   address: String! @index
   balance: BigInt!
   totalVolumeIn: BigInt!
@@ -32,25 +32,12 @@ type Account @index(fields: ["token", ["balance", "DESC"]]) {
   firstSeenTimestamp: Int!
   lastActiveBlock: Int!
   lastActiveTimestamp: Int!
-  approvalsGiven: [Approval!]! @derivedFrom(field: "owner")
-  approvalsReceived: [Approval!]! @derivedFrom(field: "spender")
-}
-
-type Approval @index(fields: ["token", "chainId"]) {
-  id: ID!                    # ${chainId}-${token}-${owner}-${spender}
-  chainId: Int! @index
-  token: String! @index
-  amount: BigInt!
-  owner: Account!
-  spender: Account!
-  lastUpdatedBlock: Int!
-  lastUpdatedTimestamp: Int!
 }
 
 type TokenSupply @index(fields: ["chainId", "token"]) {
   id: ID!                    # ${chainId}-${token}-supply
   chainId: Int!
-  token: String! @index
+  token: String!
   totalSupply: BigInt!
   totalMinted: BigInt!
   totalBurned: BigInt!
@@ -65,9 +52,9 @@ type TokenSupply @index(fields: ["chainId", "token"]) {
 
 type HourlySnapshot @index(fields: ["token", ["hourId", "DESC"]]) {
   id: ID!                    # ${chainId}-${token}-${hourId}
-  chainId: Int! @index
-  token: String! @index
-  hourId: Int! @index
+  chainId: Int!
+  token: String!
+  hourId: Int!
   hourStartTimestamp: Int!
   volume: BigInt!
   transferCount: Int!
@@ -83,9 +70,9 @@ type HourlySnapshot @index(fields: ["token", ["hourId", "DESC"]]) {
 
 type DailySnapshot @index(fields: ["token", ["dayId", "DESC"]]) {
   id: ID!                    # ${chainId}-${token}-${dayId}
-  chainId: Int! @index
-  token: String! @index
-  dayId: Int! @index
+  chainId: Int!
+  token: String!
+  dayId: Int!
   dayStartTimestamp: Int!
   dailyVolume: BigInt!
   dailyTransferCount: Int!
@@ -104,9 +91,9 @@ type DailySnapshot @index(fields: ["token", ["dayId", "DESC"]]) {
 
 type WeeklySnapshot @index(fields: ["token", ["weekId", "DESC"]]) {
   id: ID!                    # ${chainId}-${token}-${weekId}
-  chainId: Int! @index
-  token: String! @index
-  weekId: Int! @index
+  chainId: Int!
+  token: String!
+  weekId: Int!
   weekStartTimestamp: Int!
   weeklyVolume: BigInt!
   weeklyTransferCount: Int!
@@ -124,8 +111,8 @@ type WeeklySnapshot @index(fields: ["token", ["weekId", "DESC"]]) {
 
 type CrossTokenDailySnapshot @index(fields: ["chainId", ["dayId", "DESC"]]) {
   id: ID!                    # ${chainId}-${dayId}
-  chainId: Int! @index
-  dayId: Int! @index
+  chainId: Int!
+  dayId: Int!
   dayStartTimestamp: Int!
   totalVolume: BigInt!
   totalTransferCount: Int!
@@ -137,21 +124,21 @@ type CrossTokenDailySnapshot @index(fields: ["chainId", ["dayId", "DESC"]]) {
 type AccountBalanceSnapshot @index(fields: ["account", "token", ["blockTimestamp", "DESC"]]) {
   id: ID!                    # ${chainId}-${token}-${address}-${blockNumber}-${logIndex}
   chainId: Int!
-  token: String! @index
-  account: String! @index
+  token: String!
+  account: String!
   blockNumber: Int!
-  blockTimestamp: Int! @index
+  blockTimestamp: Int!
   balance: BigInt!
   balanceChange: BigInt!
   txHash: String!
 }
 
 type AccountDailyActivity @index(fields: ["account", "token", ["dayId", "DESC"]]) {
   id: ID!                    # ${chainId}-${token}-${address}-${dayId}
-  chainId: Int! @index
-  token: String! @index
-  account: String! @index
-  dayId: Int! @index
+  chainId: Int!
+  token: String!
+  account: String!
+  dayId: Int!
   transferCount: Int!
   volumeIn: BigInt!
   volumeOut: BigInt!

src/handlers/ERC20.ts

@@ -472,60 +472,3 @@ ERC20.Transfer.handler(async ({ event, context }) => {
   }
 });
 
-ERC20.Approval.handler(async ({ event, context }) => {
-  const chainId = event.chainId;
-  const token = event.srcAddress;
-  const owner = event.params.owner;
-  const spender = event.params.spender;
-  const blockNumber = event.block.number;
-  const ts = event.block.timestamp;
-
-  // 1. Ensure owner Account exists
-  const ownerId = getAccountId(chainId, token, owner);
-  await context.Account.getOrCreate({
-    id: ownerId,
-    chainId,
-    token,
-    address: owner,
-    balance: 0n,
-    totalVolumeIn: 0n,
-    totalVolumeOut: 0n,
-    transfersIn: 0,
-    transfersOut: 0,
-    firstSeenBlock: blockNumber,
-    firstSeenTimestamp: ts,
-    lastActiveBlock: blockNumber,
-    lastActiveTimestamp: ts,
-  });
-
-  // 2. Ensure spender Account exists
-  const spenderId = getAccountId(chainId, token, spender);
-  await context.Account.getOrCreate({
-    id: spenderId,
-    chainId,
-    token,
-    address: spender,
-    balance: 0n,
-    totalVolumeIn: 0n,
-    totalVolumeOut: 0n,
-    transfersIn: 0,
-    transfersOut: 0,
-    firstSeenBlock: blockNumber,
-    firstSeenTimestamp: ts,
-    lastActiveBlock: blockNumber,
-    lastActiveTimestamp: ts,
-  });
-
-  // 3. Set/overwrite Approval entity
-  const approvalId = `${chainId}-${token}-${owner}-${spender}`;
-  context.Approval.set({
-    id: approvalId,
-    chainId,
-    token,
-    amount: event.params.value,
-    owner_id: ownerId,
-    spender_id: spenderId,
-    lastUpdatedBlock: blockNumber,
-    lastUpdatedTimestamp: ts,
-  });
-});

src/indexer.test.ts

@@ -296,35 +296,3 @@ describe("Unit: Transfer handler", () => {
   });
 });
 
-describe("Unit: Approval handler", () => {
-  it("Creates approval and ensures both accounts exist", async () => {
-    const mockDb = MockDb.createMockDb();
-    const owner = Addresses.mockAddresses[0]!;
-    const spender = Addresses.mockAddresses[1]!;
-
-    const mockApproval = ERC20.Approval.createMockEvent({
-      owner,
-      spender,
-      value: 1000000n,
-      mockEventData: { srcAddress: USDC_ADDRESS, chainId: MOCK_CHAIN_ID },
-    });
-
-    const result = await ERC20.Approval.processEvent({
-      event: mockApproval,
-      mockDb,
-    });
-
-    const approvalId = `${MOCK_CHAIN_ID}-${USDC_ADDRESS}-${owner}-${spender}`;
-    const approval = result.entities.Approval.get(approvalId);
-    expect(approval).toBeDefined();
-    expect(approval?.amount).toBe(1000000n);
-    expect(approval?.token).toBe(USDC_ADDRESS);
-
-    expect(
-      result.entities.Account.get(`${MOCK_CHAIN_ID}-${USDC_ADDRESS}-${owner}`)
-    ).toBeDefined();
-    expect(
-      result.entities.Account.get(`${MOCK_CHAIN_ID}-${USDC_ADDRESS}-${spender}`)
-    ).toBeDefined();
-  });
-});