@gabliam/koa/src/koa-interceptor.js

Gabliam plugin for add koa

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.UseKoaInterceptors = exports.toInterceptor = exports.isValidInterceptor = void 0;
const core_1 = require("@gabliam/core");
const web_core_1 = require("@gabliam/web-core");
/**
 * Test if target is a valid interceptor
 * @param target any
 */
const isValidInterceptor = (target) => {
    const meta = Reflect.getOwnMetadata(web_core_1.METADATA_KEY.specialInterceptor, target.constructor || target);
    return meta === undefined || meta === 'koa';
};
exports.isValidInterceptor = isValidInterceptor;
/**
 * KoaInterceptor decorator
 * class is an koa interceptor.
 * Must return koaRouter middleware
 */
const KoaInterceptor = () => (target) => {
    Reflect.defineMetadata(web_core_1.METADATA_KEY.specialInterceptor, 'koa', target);
};
/**
 * Convert a Koa router middleware to a gabliam interceptor
 */
const toInterceptor = (mid) => {
    const clazz = class {
        async intercept(context, next) {
            const ctx = context.state.context;
            // eslint-disable-next-line @typescript-eslint/return-await
            return await mid(ctx, next);
        }
    };
    (0, web_core_1.Context)()(clazz.prototype, 'intercept', 0);
    (0, web_core_1.Next)()(clazz.prototype, 'intercept', 1);
    (0, core_1.Service)()(clazz);
    KoaInterceptor()(clazz);
    // metadata
    Reflect.defineMetadata('design:type', Function, clazz.prototype, 'intercept');
    Reflect.defineMetadata('design:paramtypes', [Function, Function], clazz.prototype, 'intercept');
    Reflect.defineMetadata('design:returntype', Promise, clazz.prototype, 'intercept');
    return clazz;
};
exports.toInterceptor = toInterceptor;
/**
 * Alias for evict to use: UseInterceptors(toInterceptor(koaMid))
 */
const UseKoaInterceptors = (...mids) => (0, web_core_1.UseInterceptors)(...mids.map((m) => (0, exports.toInterceptor)(m)));
exports.UseKoaInterceptors = UseKoaInterceptors;