koa-body
Version:
A Koa body parser middleware. Supports multipart, urlencoded and JSON request bodies.
128 lines • 5.8 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
var __exportStar = (this && this.__exportStar) || function(m, exports) {
for (var p in m) if (p !== "default" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.koaBody = koaBody;
const coBody = __importStar(require("co-body"));
const types_js_1 = require("./types.js");
const body_type_util_js_1 = require("./utils/body-type-util.js");
const parse_with_formidable_js_1 = __importDefault(require("./utils/parse-with-formidable.js"));
const patch_util_js_1 = require("./utils/patch-util.js");
const string_method_to_enum_method_js_1 = __importDefault(require("./utils/string-method-to-enum-method.js"));
const throwable_to_error_js_1 = __importDefault(require("./utils/throwable-to-error.js"));
__exportStar(require("./types.js"), exports);
function koaBody(options = {}) {
const validatedOptions = types_js_1.KoaBodyMiddlewareOptionsSchema.parse(options);
const optionsToUse = { ...options, ...validatedOptions };
return async (ctx, next) => {
const isJson = (0, body_type_util_js_1.isJsonBody)(ctx, optionsToUse);
const isText = (0, body_type_util_js_1.isTextBody)(ctx, optionsToUse);
const isUrlencoded = (0, body_type_util_js_1.isUrlencodedBody)(ctx, optionsToUse);
const isMultipart = (0, body_type_util_js_1.isMultipartBody)(ctx, optionsToUse);
const { encoding, jsonStrict, jsonLimit, includeUnparsed, formLimit, textLimit, queryString, formidable, onError, patchNode, patchKoa, } = optionsToUse;
// only parse the body on specifically chosen methods
if (validatedOptions.parsedMethods.includes((0, string_method_to_enum_method_js_1.default)(ctx.method.toUpperCase()))) {
try {
if (isJson) {
const jsonBody = await coBody.json(ctx, {
encoding,
limit: jsonLimit,
strict: jsonStrict,
returnRawBody: includeUnparsed,
});
(0, patch_util_js_1.patchNodeAndKoa)(ctx, jsonBody, {
includeUnparsed,
isMultipart,
patchKoa,
patchNode,
});
}
else if (isUrlencoded) {
const urlEncodedBody = await coBody.form(ctx, {
encoding,
limit: formLimit,
queryString: queryString,
returnRawBody: includeUnparsed,
});
(0, patch_util_js_1.patchNodeAndKoa)(ctx, urlEncodedBody, {
includeUnparsed,
isMultipart,
patchKoa,
patchNode,
});
}
else if (isText) {
const textBody = await coBody.text(ctx, {
encoding,
limit: textLimit,
returnRawBody: includeUnparsed,
});
(0, patch_util_js_1.patchNodeAndKoa)(ctx, textBody, {
includeUnparsed,
isMultipart,
patchKoa,
patchNode,
});
}
else if (isMultipart) {
const multipartBody = await (0, parse_with_formidable_js_1.default)(ctx, formidable || {});
(0, patch_util_js_1.patchNodeAndKoa)(ctx, multipartBody, {
includeUnparsed,
isMultipart,
patchKoa,
patchNode,
});
}
}
catch (parsingError) {
const error = (0, throwable_to_error_js_1.default)(parsingError);
if (typeof onError === 'function') {
onError(error, ctx);
}
else {
throw error;
}
}
}
return next();
};
}
exports.default = koaBody;
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