111 lines
3.5 KiB
TypeScript
111 lines
3.5 KiB
TypeScript
import * as plugins from './typedrequest.plugins';
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import { TypedResponseError } from './typedrequest.classes.typedresponseerror';
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import { TypedRouter } from './typedrequest.classes.typedrouter';
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export type IPostMethod = (
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typedRequestPostObject: plugins.typedRequestInterfaces.ITypedRequest
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) => Promise<plugins.typedRequestInterfaces.ITypedRequest>;
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export type IPostMethodWithTypedRouter = (
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typedRequestPostObject: plugins.typedRequestInterfaces.ITypedRequest
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) => Promise<void> | Promise<plugins.typedRequestInterfaces.ITypedRequest>;
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export class TypedRequest<T extends plugins.typedRequestInterfaces.ITypedRequest> {
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/**
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* this typedrouter allows us to have easy async request response cycles
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*/
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public typedRouterRef: TypedRouter;
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public webrequest = new plugins.webrequest.WebRequest();
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/**
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* in case we post against a url endpoint
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*/
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public urlEndPoint?: string;
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/**
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* in case we post with some other method, ec ipc communication
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*/
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public postMethod?: IPostMethod | IPostMethodWithTypedRouter;
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public method: string;
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// STATIC
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constructor(postEndPointArg: string | IPostMethod, methodArg: T['method']);
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constructor(
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postEndPointArg: string | IPostMethodWithTypedRouter,
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methodArg: T['method'],
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typedrouterRefArg: TypedRouter
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);
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constructor(
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postEndPointArg: string | IPostMethodWithTypedRouter,
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methodArg: T['method'],
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typedrouterRefArg?: TypedRouter
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) {
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if (typeof postEndPointArg === 'string') {
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this.urlEndPoint = postEndPointArg;
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} else {
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this.postMethod = postEndPointArg;
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}
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this.method = methodArg;
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this.typedRouterRef = typedrouterRefArg;
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}
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/**
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* fires the request
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*/
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public async fire(fireArg: T['request']): Promise<T['response']> {
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const payload: plugins.typedRequestInterfaces.ITypedRequest = {
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method: this.method,
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request: fireArg,
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response: null,
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correlation: {
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id: plugins.isounique.uni(),
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phase: 'request',
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},
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};
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let responseBody: plugins.typedRequestInterfaces.ITypedRequest;
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if (this.urlEndPoint) {
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const response = await this.webrequest.postJson(this.urlEndPoint, payload);
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responseBody = response;
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} else {
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let responseInterest: plugins.lik.Interest<
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string,
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plugins.typedRequestInterfaces.ITypedRequest
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>;
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// having a typedrouter allows us to work with async request response cycles.
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if (this.typedRouterRef) {
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responseInterest = await this.typedRouterRef.fireEventInterestMap.addInterest(
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payload.correlation.id,
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payload
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);
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}
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const postMethodReturnValue = await this.postMethod(payload);
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if (responseInterest) {
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responseBody = await responseInterest.interestFullfilled;
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} else if (postMethodReturnValue) {
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responseBody = postMethodReturnValue;
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} else {
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responseBody = payload;
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}
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}
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if (responseBody.error) {
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console.error(
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`Got an error ${responseBody.error.text} with data ${JSON.stringify(
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responseBody.error.data
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)}`
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);
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if (!responseBody.retry) {
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throw new TypedResponseError(responseBody.error.text, responseBody.error.data);
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}
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return null;
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}
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if (responseBody.retry) {
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console.log(`server requested retry for the following reason: ${responseBody.retry.reason}`);
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await plugins.smartdelay.delayFor(responseBody.retry.waitForMs);
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// tslint:disable-next-line: no-return-await
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return await this.fire(fireArg);
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}
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return responseBody.response;
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}
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}
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