Move to libs

libs/angular/src/directives/api-action.directive.ts

@@ -0,0 +1,49 @@
+import { Directive, ElementRef, Input, OnChanges } from "@angular/core";
+
+import { LogService } from "jslib-common/abstractions/log.service";
+import { ErrorResponse } from "jslib-common/models/response/errorResponse";
+
+import { ValidationService } from "../services/validation.service";
+
+/**
+ * Provides error handling, in particular for any error returned by the server in an api call.
+ * Attach it to a <form> element and provide the name of the class property that will hold the api call promise.
+ * e.g. <form [appApiAction]="this.formPromise">
+ * Any errors/rejections that occur will be intercepted and displayed as error toasts.
+ */
+@Directive({
+  selector: "[appApiAction]",
+})
+export class ApiActionDirective implements OnChanges {
+  @Input() appApiAction: Promise<any>;
+
+  constructor(
+    private el: ElementRef,
+    private validationService: ValidationService,
+    private logService: LogService
+  ) {}
+
+  ngOnChanges(changes: any) {
+    if (this.appApiAction == null || this.appApiAction.then == null) {
+      return;
+    }
+
+    this.el.nativeElement.loading = true;
+
+    this.appApiAction.then(
+      (response: any) => {
+        this.el.nativeElement.loading = false;
+      },
+      (e: any) => {
+        this.el.nativeElement.loading = false;
+
+        if ((e as ErrorResponse).captchaRequired) {
+          this.logService.error("Captcha required error response: " + e.getSingleMessage());
+          return;
+        }
+        this.logService?.error(`Received API exception: ${e}`);
+        this.validationService.showError(e);
+      }
+    );
+  }
+}