80 lines
2.8 KiB
TypeScript
80 lines
2.8 KiB
TypeScript
import { TypedRouter } from './typedrequest.classes.typedrouter.js';
|
|
import * as plugins from './typedrequest.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;
|
|
}
|
|
}
|