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// Copyright (C) 2023 Vaughn Nugent
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
import { useAxios } from "@vnuge/vnlib.browser";
import { Method } from "axios";
export interface EndpointDefinition {
readonly method: Method
path(request?: any): string
onRequest: (request?: any) => Promise<any>
onResponse: (response: any, request?: any) => Promise<any>
}
export interface EndpointDefinitionReg<T extends string> extends EndpointDefinition {
readonly id: T
}
export const initEndponts = () => {
const endpoints = new Map<string, EndpointDefinition>();
const registerEndpoint = <T extends string>(def: EndpointDefinitionReg<T>) => {
//Store the handler by its id
endpoints.set(def.id, def);
return def;
}
const getEndpoint = <T extends string>(id: T): EndpointDefinition | undefined => {
return endpoints.get(id);
}
const execRequest = async <T>(id: string, request?: any): Promise<T> => {
const endpoint = getEndpoint(id);
if (!endpoint) {
throw new Error(`Endpoint ${id} not found`);
}
//Compute the path from the request
const path = endpoint.path(request);
//Execute the request handler
const req = await endpoint.onRequest(request);
//Get axios
const axios = useAxios(null);
//Exec the request
const { data } = await axios({ method: endpoint.method, url: path, data: req });
//exec the response handler and return its result
return await endpoint.onResponse(data, request);
}
return {
registerEndpoint,
getEndpoint,
execRequest
}
}
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