@loopback/rest
Version:
Expose controllers as REST endpoints and route REST API requests to controller methods
102 lines • 3.5 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.builtinParsers = exports.getParserOptions = exports.DEFAULT_LIMIT = exports.invokeBodyParserMiddleware = exports.normalizeParsingError = exports.getContentType = void 0;
const tslib_1 = require("tslib");
const debug_1 = tslib_1.__importDefault(require("debug"));
const debug = (0, debug_1.default)('loopback:rest:body-parser');
/**
* Get the content-type header value from the request
* @param req - Http request
*/
function getContentType(req) {
return req.get('content-type');
}
exports.getContentType = getContentType;
/**
* Normalize parsing errors as `4xx`
* @param err
*/
function normalizeParsingError(err) {
debug('Cannot parse request body %j', err);
if (!err.statusCode || err.statusCode >= 500) {
err.statusCode = 400;
}
return err;
}
exports.normalizeParsingError = normalizeParsingError;
/* eslint-disable @typescript-eslint/no-explicit-any */
/**
* Parse the request body asynchronously
* @param handle - The express middleware handler
* @param request - Http request
*/
function invokeBodyParserMiddleware(handle, request) {
// A hack to fool TypeScript as we don't need `response`
const response = {};
return new Promise((resolve, reject) => {
handle(request, response, err => {
if (err) {
reject(err);
return;
}
resolve(request.body);
});
});
}
exports.invokeBodyParserMiddleware = invokeBodyParserMiddleware;
// Default limit of the body length
exports.DEFAULT_LIMIT = '1mb';
function getParserOptions(type, options) {
const opts = { limit: exports.DEFAULT_LIMIT };
switch (type) {
case 'json':
// Allow */json and */*+json
opts.type = ['*/json', '*/*+json'];
opts.strict = false;
break;
case 'urlencoded':
opts.type = type;
opts.extended = true;
break;
case 'text':
// Set media type to `text/*` to match `text/plain` or `text/html`
opts.type = 'text/*';
break;
case 'raw':
opts.type = ['application/octet-stream', '*/*'];
break;
}
Object.assign(opts, options[type], options);
for (const k of ['json', 'urlencoded', 'text', 'raw']) {
delete opts[k];
}
return opts;
}
exports.getParserOptions = getParserOptions;
var builtinParsers;
(function (builtinParsers) {
builtinParsers.json = Symbol('json');
builtinParsers.urlencoded = Symbol('urlencoded');
builtinParsers.text = Symbol('text');
builtinParsers.raw = Symbol('raw');
builtinParsers.stream = Symbol('stream');
builtinParsers.names = [
builtinParsers.json,
builtinParsers.urlencoded,
builtinParsers.text,
builtinParsers.raw,
builtinParsers.stream,
];
builtinParsers.mapping = {
json: builtinParsers.json,
urlencoded: builtinParsers.urlencoded,
text: builtinParsers.text,
raw: builtinParsers.raw,
stream: builtinParsers.stream,
};
})(builtinParsers || (exports.builtinParsers = builtinParsers = {}));
//# sourceMappingURL=body-parser.helpers.js.map