move template helpers

Author: antho1404

concat.ts

@@ -0,0 +1,22 @@
+import { OperationVariables } from '@apollo/client'
+
+export function concatToQuery<T = any>(
+  key: Exclude<keyof T, '__typename'>,
+): (
+  previousQueryResult: any,
+  options: { fetchMoreResult?: any; variables?: OperationVariables },
+) => any {
+  return (previousQueryResult, { fetchMoreResult }) => {
+    if (!fetchMoreResult) return previousQueryResult
+    return {
+      ...fetchMoreResult,
+      [key]: {
+        ...fetchMoreResult[key],
+        nodes: [
+          ...(previousQueryResult[key].nodes || []),
+          ...(fetchMoreResult[key].nodes || []),
+        ],
+      },
+    }
+  }
+}