feat(bare-flow): runtime check that deploy function has been called once

ElonH · May 15, 2020 · 45c4f20 · 45c4f20
1 parent 2d5ebc6
commit 45c4f20
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/app/@dataflow/core/bare-flow.ts b/src/app/@dataflow/core/bare-flow.ts
@@ -7,6 +7,7 @@ export abstract class BareFlow {
 	public abstract prerequest$: Observable<DataFlowNode>;
 	protected abstract request(pre: DataFlowNode): Observable<DataFlowNode>;
 	private bareData$: Observable<DataFlowNode>;
+	private deployed = false;
 	public deploy() {
 		this.bareData$ = this.prerequest$.pipe(
 			switchMap(
@@ -16,8 +17,10 @@ export abstract class BareFlow {
 				}
 			)
 		);
+		this.deployed = true;
 	}
 	public getOutput(): Observable<DataFlowNode> {
+		if (!this.deployed) throw new Error('run deploy before getOutput');
 		return this.bareData$;
 	}
 }