1 files changed, 16 insertions, 0 deletions
diff --git a/packages/pipeline/src/utils/transformers/big_number.ts b/packages/pipeline/src/utils/transformers/big_number.ts
new file mode 100644
index 000000000..5f2e4d565
--- /dev/null
+++ b/packages/pipeline/src/utils/transformers/big_number.ts
@@ -0,0 +1,16 @@
+import { BigNumber } from '@0x/utils';
+import { ValueTransformer } from 'typeorm/decorator/options/ValueTransformer';
+
+export class BigNumberTransformer implements ValueTransformer {
+    // tslint:disable-next-line:prefer-function-over-method
+    public to(value: BigNumber | null): string | null {
+        return value === null ? null : value.toString();
+    }
+
+    // tslint:disable-next-line:prefer-function-over-method
+    public from(value: string | null): BigNumber | null {
+        return value === null ? null : new BigNumber(value);
+    }
+}
+
+export const bigNumberTransformer = new BigNumberTransformer();