fix(core): update

2024-05-30 19:01:39 +02:00
parent 4449c82611
commit 489fa237b9
11 changed files with 31 additions and 19 deletions
--- a/ts/classes.typedtarget.ts
+++ b/ts/classes.typedtarget.ts
@@ -0,0 +1,81 @@
+import { TypedRouter } from './classes.typedrouter.js';
+import * as plugins from './plugins.js';
+
+export type IPostMethod = (
+  typedRequestPostObject: plugins.typedRequestInterfaces.ITypedRequest
+) => Promise<plugins.typedRequestInterfaces.ITypedRequest>;
+
+/**
+ * this is an alternative to a post url supplied in `new Typedrequest(new TypedTarget(...), 'someMethodName')`
+ * enables the use of custom post functions
+ * used for things like broadcast channels
+ * e.g. @designestate/dees-comms
+ * the main difference here is, that the response comes back async and is routed by interest through typedrouter
+ */
+export type IPostMethodWithTypedRouter = (
+  typedRequestPostObject: plugins.typedRequestInterfaces.ITypedRequest
+) => Promise<void> | Promise<plugins.typedRequestInterfaces.ITypedRequest>;
+
+export interface ITypedTargetConstructorOptions {
+  url?: string;
+  postMethod?: IPostMethod;
+  /**
+   * a post method that does not return the answer
+   */
+  postMethodWithTypedRouter?: IPostMethodWithTypedRouter;
+  /**
+   * this typedrouter allows us to have easy async request response cycles
+   */
+  typedRouterRef?: TypedRouter;
+}
+
+/**
+ * a typed target defines a target for requests
+ */
+export class TypedTarget {
+  url: string;
+  type: 'rest' | 'socket';
+  options: ITypedTargetConstructorOptions;
+
+  constructor(optionsArg: ITypedTargetConstructorOptions) {
+    if (optionsArg.postMethodWithTypedRouter && !optionsArg.typedRouterRef) {
+      throw new Error('you have to specify a typedrouter when using postmethod with typedrouter');
+    }
+    this.options = optionsArg;
+  }
+
+  /**
+   * wether calls to this target are bound to the request/response cycle
+   * if false, always delivers response as result of a call
+   * if true, delivers response in a separate call
+   * can only be async when type is 'socket'
+   */
+  public isAsync: boolean;
+
+  public async post<T extends plugins.typedRequestInterfaces.ITypedRequest>(
+    payloadArg: T
+  ): Promise<T> {
+    let responseInterest: plugins.lik.Interest<
+      string,
+      plugins.typedRequestInterfaces.ITypedRequest
+    >;
+    // having a typedrouter allows us to work with async request response cycles.
+    if (this.options.typedRouterRef) {
+      responseInterest = await this.options.typedRouterRef.fireEventInterestMap.addInterest(
+        payloadArg.correlation.id,
+        payloadArg
+      );
+    }
+    const postMethod = this.options.postMethod || this.options.postMethodWithTypedRouter;
+    const postMethodReturnValue = await postMethod(payloadArg);
+    let responseBody: T;
+    if (responseInterest) {
+      responseBody = (await responseInterest.interestFullfilled) as T;
+    } else if (postMethodReturnValue) {
+      responseBody = postMethodReturnValue as T;
+    } else {
+      responseBody = payloadArg;
+    }
+    return responseBody;
+  }
+}