@loopback/rest
Version:
Expose controllers as REST endpoints and route REST API requests to controller methods
65 lines • 2.54 kB
JavaScript
;
// Copyright IBM Corp. and LoopBack contributors 2018,2020. All Rights Reserved.
// Node module: @loopback/rest
// This file is licensed under the MIT License.
// License text available at https://opensource.org/licenses/MIT
Object.defineProperty(exports, "__esModule", { value: true });
exports.SendResponseMiddlewareProvider = exports.SendProvider = void 0;
const tslib_1 = require("tslib");
const core_1 = require("@loopback/core");
const express_1 = require("@loopback/express");
const keys_1 = require("../keys");
const sequence_1 = require("../sequence");
const writer_1 = require("../writer");
/**
* Provides the function that populates the response object with
* the results of the operation.
*
* @returns The handler function that will populate the
* response with operation results.
*/
let SendProvider = class SendProvider {
static value() {
return writer_1.writeResultToResponse;
}
};
exports.SendProvider = SendProvider;
exports.SendProvider = SendProvider = tslib_1.__decorate([
(0, core_1.injectable)({ scope: core_1.BindingScope.SINGLETON })
], SendProvider);
let SendResponseMiddlewareProvider = class SendResponseMiddlewareProvider {
value() {
return async (ctx, next) => {
const send = await ctx.get(keys_1.RestBindings.SequenceActions.SEND);
const reject = await ctx.get(keys_1.RestBindings.SequenceActions.REJECT);
try {
/**
* Invoke downstream middleware to produce the result
*/
const result = await next();
/**
* Write the result to HTTP response
*/
send(ctx.response, result);
}
catch (err) {
/**
* Write the error to HTTP response
*/
reject(ctx, err);
}
};
}
};
exports.SendResponseMiddlewareProvider = SendResponseMiddlewareProvider;
exports.SendResponseMiddlewareProvider = SendResponseMiddlewareProvider = tslib_1.__decorate([
(0, core_1.injectable)((0, express_1.asMiddleware)({
group: sequence_1.RestMiddlewareGroups.SEND_RESPONSE,
downstreamGroups: [
sequence_1.RestMiddlewareGroups.CORS,
sequence_1.RestMiddlewareGroups.INVOKE_METHOD,
],
chain: keys_1.RestTags.REST_MIDDLEWARE_CHAIN,
}), { scope: core_1.BindingScope.SINGLETON })
], SendResponseMiddlewareProvider);
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