Invoke subgraph handler in watcher event processing (#34)

* Invoke subgraph handler in watcher event processing

* Fix error when invoking subgraph handler

* Parse events using event signature specified in subgraph yaml

* Use contract abi to parse event params

* Invoke event handler based on event signature

* Fill event with block and transaction data

* Comment missing fields in block and transaction data

packages/graph-node/test/subgraph/example1/abis/Example1.json

@@ -10,14 +10,27 @@
       },
       {
         "indexed": false,
-        "internalType": "uint256",
+        "internalType": "uint8",
         "name": "param2",
-        "type": "uint256"
+        "type": "uint8"
       }
     ],
     "name": "Test",
     "type": "event"
   },
+  {
+    "inputs": [],
+    "name": "emitEvent",
+    "outputs": [
+      {
+        "internalType": "bool",
+        "name": "",
+        "type": "bool"
+      }
+    ],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
   {
     "inputs": [],
     "name": "getMethod",

packages/graph-node/test/subgraph/example1/generated/Example1/Example1.ts

@@ -27,8 +27,8 @@ export class Test__Params {
     return this._event.parameters[0].value.toString();
   }
 
-  get param2(): BigInt {
-    return this._event.parameters[1].value.toBigInt();
+  get param2(): i32 {
+    return this._event.parameters[1].value.toI32();
   }
 }
 
@@ -37,6 +37,21 @@ export class Example1 extends ethereum.SmartContract {
     return new Example1("Example1", address);
   }
 
+  emitEvent(): boolean {
+    let result = super.call("emitEvent", "emitEvent():(bool)", []);
+
+    return result[0].toBoolean();
+  }
+
+  try_emitEvent(): ethereum.CallResult<boolean> {
+    let result = super.tryCall("emitEvent", "emitEvent():(bool)", []);
+    if (result.reverted) {
+      return new ethereum.CallResult();
+    }
+    let value = result.value;
+    return ethereum.CallResult.fromValue(value[0].toBoolean());
+  }
+
   getMethod(): string {
     let result = super.call("getMethod", "getMethod():(string)", []);
 
@@ -52,3 +67,33 @@ export class Example1 extends ethereum.SmartContract {
     return ethereum.CallResult.fromValue(value[0].toString());
   }
 }
+
+export class EmitEventCall extends ethereum.Call {
+  get inputs(): EmitEventCall__Inputs {
+    return new EmitEventCall__Inputs(this);
+  }
+
+  get outputs(): EmitEventCall__Outputs {
+    return new EmitEventCall__Outputs(this);
+  }
+}
+
+export class EmitEventCall__Inputs {
+  _call: EmitEventCall;
+
+  constructor(call: EmitEventCall) {
+    this._call = call;
+  }
+}
+
+export class EmitEventCall__Outputs {
+  _call: EmitEventCall;
+
+  constructor(call: EmitEventCall) {
+    this._call = call;
+  }
+
+  get value0(): boolean {
+    return this._call.outputValues[0].value.toBoolean();
+  }
+}

packages/graph-node/test/subgraph/example1/generated/export.ts

@@ -6,21 +6,19 @@ import {
   BigInt,
   ethereum,
   Address,
-  Bytes
+  ByteArray,
+  Bytes,
+  Entity
 } from '@graphprotocol/graph-ts';
 
-import {
-  Test
-} from './Example1/Example1';
-
 export {
   BigDecimal,
   BigInt,
 
   ethereum,
+  Entity,
 
   Address,
-  Bytes,
-
-  Test
+  ByteArray,
+  Bytes
 }

packages/graph-node/test/subgraph/example1/generated/schema.ts

@@ -19,7 +19,7 @@ export class ExampleEntity extends Entity {
 
     this.set("count", Value.fromBigInt(BigInt.zero()));
     this.set("param1", Value.fromString(""));
-    this.set("param2", Value.fromBigInt(BigInt.zero()));
+    this.set("param2", Value.fromI32(0));
   }
 
   save(): void {
@@ -66,12 +66,12 @@ export class ExampleEntity extends Entity {
     this.set("param1", Value.fromString(value));
   }
 
-  get param2(): BigInt {
+  get param2(): i32 {
     let value = this.get("param2");
-    return value!.toBigInt();
+    return value!.toI32();
   }
 
-  set param2(value: BigInt) {
-    this.set("param2", Value.fromBigInt(value));
+  set param2(value: i32) {
+    this.set("param2", Value.fromI32(value));
   }
 }

packages/graph-node/test/subgraph/example1/package.json

@@ -10,7 +10,7 @@
     "deploy-local": "graph deploy --node http://localhost:8020/ --ipfs http://localhost:5001 example1"
   },
   "dependencies": {
-    "@graphprotocol/graph-cli": "ssh://git@github.com:vulcanize/graph-cli.git#graph-watcher-v0.22.1",
-    "@graphprotocol/graph-ts": "0.22.0"
+    "@graphprotocol/graph-cli": "ssh://git@github.com:vulcanize/graph-cli.git#ng-add-exports",
+    "@graphprotocol/graph-ts": "^0.22.1"
   }
 }

packages/graph-node/test/subgraph/example1/schema.graphql

@@ -2,5 +2,5 @@ type ExampleEntity @entity {
   id: ID!
   count: BigInt!
   param1: String! # string
-  param2: BigInt! # uint256
+  param2: Int! # uint8
 }

packages/graph-node/test/subgraph/example1/src/mapping.ts

@@ -10,6 +10,7 @@ export function handleTest (event: Test): void {
   log.debug('event.address: {}', [event.address.toHexString()]);
   log.debug('event.params.param1: {}', [event.params.param1]);
   log.debug('event.params.param2: {}', [event.params.param2.toString()]);
+  log.debug('event.block.hash: {}', [event.block.hash.toHexString()]);
 
   // Entities can be loaded from the store using a string ID; this ID
   // needs to be unique across all entities of the same type

packages/graph-node/test/subgraph/example1/subgraph.yaml

@@ -6,7 +6,7 @@ dataSources:
     name: Example1
     network: mainnet
     source:
-      address: "0x3ebd8bb51fF52aDAc490117B31F5F137BB125A9D"
+      address: "0x4Ab7aE18973491Df21d6103dfA55170fdB2CCC98"
       abi: Example1
     mapping:
       kind: ethereum/events
@@ -18,6 +18,6 @@ dataSources:
         - name: Example1
           file: ./abis/Example1.json
       eventHandlers:
-        - event: Test(string,uint256)
+        - event: Test(string,uint8)
           handler: handleTest
       file: ./src/mapping.ts

packages/graph-node/test/subgraph/example1/yarn.lock

@@ -23,9 +23,9 @@
     chalk "^2.0.0"
     js-tokens "^4.0.0"
 
-"@graphprotocol/graph-cli@ssh://git@github.com:vulcanize/graph-cli.git#graph-watcher-v0.22.1":
+"@graphprotocol/graph-cli@ssh://git@github.com:vulcanize/graph-cli.git#ng-add-exports":
   version "0.22.1"
-  resolved "ssh://git@github.com:vulcanize/graph-cli.git#4241570e91578a0128deccc518d52eca00bd587c"
+  resolved "ssh://git@github.com:vulcanize/graph-cli.git#d70ae40a7517a666f550b25a0fa4ae0d3758e7d0"
   dependencies:
     assemblyscript "0.19.10"
     binary-install-raw "0.0.13"
@@ -51,10 +51,10 @@
     which "2.0.2"
     yaml "^1.5.1"
 
-"@graphprotocol/graph-ts@0.22.0":
-  version "0.22.0"
-  resolved "https://registry.yarnpkg.com/@graphprotocol/graph-ts/-/graph-ts-0.22.0.tgz#5280513d1c8a162077f82ce7f9a492bb5783d6f4"
-  integrity sha512-kJIBL73xBxj0+NJdRABukAtcrc3Mb8jt31s0tCLPe6c57rQXEf7KR9oYrFdzE1ZsJCP6j+MX+A2+sj1Pj3aJtQ==
+"@graphprotocol/graph-ts@^0.22.1":
+  version "0.22.1"
+  resolved "https://registry.yarnpkg.com/@graphprotocol/graph-ts/-/graph-ts-0.22.1.tgz#3189b2495b33497280f617316cce68074d48e236"
+  integrity sha512-T5xrHN0tHJwd7ZnSTLhk5hAL3rCIp6rJ40kBCrETnv1mfK9hVyoojJK6VtBQXTbLsYtKe4SYjjD0cdOsAR9QiA==
   dependencies:
     assemblyscript "0.19.10"