@nodeswork/kiws/dist/input.js

Koa-based Injectable Web Service

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
require("reflect-metadata");
const _ = require("underscore");
const injection_1 = require("./injection");
exports.INPUT = 'INPUT';
const INPUT_TAGS = ['input', 'provider'];
exports.INPUT_METADATA_KEY = Symbol('kiws:input');
/**
 * InputProvider class decorator will register the middlewares declared in
 * the provider to provide inputs when serving traffic.
 */
function InputProvider(options = {}) {
    const injectable = injection_1.Injectable({
        inputs: true,
        tags: _.union(INPUT_TAGS, options.tags || []),
        meta: options.meta,
    });
    return (constructor) => {
        injectable(constructor);
        constructor.prototype.$generateInputs = $generateInputs;
    };
}
exports.InputProvider = InputProvider;
function InputGenerator(options = {}) {
    return (target, propertyKey, descriptor) => {
        const generators = Reflect.getOwnMetadata(exports.INPUT_METADATA_KEY, target) || [];
        generators.push(_.extend({}, options, {
            provider: target.constructor.name,
            name: propertyKey,
        }));
        Reflect.defineMetadata(exports.INPUT_METADATA_KEY, generators, target);
    };
}
exports.InputGenerator = InputGenerator;
function $generateInputs(ctx) {
    const metadatas = Reflect.getOwnMetadata(exports.INPUT_METADATA_KEY, this.constructor.prototype) || [];
    const inputs = _.map(metadatas, (metadata) => {
        return this[metadata.name](ctx);
    });
    return _.flatten(inputs);
}

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