Implement scraping and parsing exchange cancel events

2 files changed, 35 insertions, 3 deletions

diff --git a/packages/pipeline/src/entities/ExchangeCancelEvent.ts b/packages/pipeline/src/entities/ExchangeCancelEvent.ts
new file mode 100644
index 000000000..8e21518d3
--- /dev/null
+++ b/packages/pipeline/src/entities/ExchangeCancelEvent.ts
@@ -0,0 +1,32 @@
+import { BaseEntity, Column, Entity, PrimaryColumn } from 'typeorm';
+
+import { AssetType } from '../types';
+
+@Entity()
+export class ExchangeCancelEvent extends BaseEntity {
+    @PrimaryColumn() public logIndex!: number;
+
+    @Column() public address!: string;
+    @Column() public rawData!: string;
+    @Column() public blockNumber!: number;
+
+    @Column() public makerAddress!: string;
+    @Column({ nullable: true, type: String })
+    public takerAddress!: string;
+    @Column() public feeRecepientAddress!: string;
+    @Column() public senderAddress!: string;
+    @Column() public orderHash!: string;
+    @Column() public rawMakerAssetData!: string;
+    @Column() public makerAssetType!: AssetType;
+    @Column() public makerAssetProxyId!: string;
+    @Column() public makerTokenAddress!: string;
+    @Column({ nullable: true, type: String })
+    public makerTokenId!: string | null;
+    @Column() public rawTakerAssetData!: string;
+    @Column() public takerAssetType!: AssetType;
+    @Column() public takerAssetProxyId!: string;
+    @Column() public takerTokenAddress!: string;
+    @Column({ nullable: true, type: String })
+    public takerTokenId!: string | null;
+    // TODO(albrow): Include topics?
+}
diff --git a/packages/pipeline/src/entities/ExchangeFillEvent.ts b/packages/pipeline/src/entities/ExchangeFillEvent.ts
index a7e817240..e66bd64e3 100644
--- a/packages/pipeline/src/entities/ExchangeFillEvent.ts
+++ b/packages/pipeline/src/entities/ExchangeFillEvent.ts
@@ -1,6 +1,6 @@
 import { BaseEntity, Column, Entity, PrimaryColumn } from 'typeorm';
 
-export type ExchangeFillEventAssetType = 'erc20' | 'erc721';
+import { AssetType } from '../types';
 
 @Entity()
 export class ExchangeFillEvent extends BaseEntity {
@@ -20,13 +20,13 @@ export class ExchangeFillEvent extends BaseEntity {
     @Column() public takerFeePaid!: string;
     @Column() public orderHash!: string;
     @Column() public rawMakerAssetData!: string;
-    @Column() public makerAssetType!: ExchangeFillEventAssetType;
+    @Column() public makerAssetType!: AssetType;
     @Column() public makerAssetProxyId!: string;
     @Column() public makerTokenAddress!: string;
     @Column({ nullable: true, type: String })
     public makerTokenId!: string | null;
     @Column() public rawTakerAssetData!: string;
-    @Column() public takerAssetType!: ExchangeFillEventAssetType;
+    @Column() public takerAssetType!: AssetType;
     @Column() public takerAssetProxyId!: string;
     @Column() public takerTokenAddress!: string;
     @Column({ nullable: true, type: String })