@senacor/azure-function-middleware/dist/validation/requestBodyValidation.js

Middleware for azure functions to handle authentication, authorization, error handling and logging

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.requestBodyValidation = requestBodyValidation;
const error_1 = require("../error");
const middleware_1 = require("../middleware");
function requestBodyValidation(schema, options) {
    var _a, _b, _c;
    const shouldThrowOnValidationError = (_a = options === null || options === void 0 ? void 0 : options.shouldThrowOnValidationError) !== null && _a !== void 0 ? _a : true;
    const transformErrorMessage = (_b = options === null || options === void 0 ? void 0 : options.transformErrorMessage) !== null && _b !== void 0 ? _b : ((message) => ({ message }));
    const printInputOnValidationError = (_c = options === null || options === void 0 ? void 0 : options.printInputOnValidationError) !== null && _c !== void 0 ? _c : true;
    return (req, context, result) => __awaiter(this, void 0, void 0, function* () {
        if ((0, middleware_1.isErrorResult)(result)) {
            context.info('Skipping request body validation because the result is faulty');
            return;
        }
        const requestBody = yield req
            .clone()
            .json()
            .catch((error) => {
            context.error('Error during request body validation:', error);
            if (error instanceof SyntaxError || (error === null || error === void 0 ? void 0 : error.name) === 'SyntaxError') {
                throw new error_1.ApplicationError('Request body contains invalid json', 400, {
                    message: 'Request body contains invalid json',
                });
            }
            throw new error_1.ApplicationError('Internal server error', 500, { message: 'Internal server error' });
        });
        const validationResult = schema.validate(requestBody, options === null || options === void 0 ? void 0 : options.joiValidationOptions);
        if (validationResult.error) {
            context.error('Request body did not match the given schema:', JSON.stringify(validationResult.error));
            if (printInputOnValidationError) {
                context.info('Invalid request body:', JSON.stringify(requestBody));
            }
            if (shouldThrowOnValidationError) {
                throw new error_1.ApplicationError('Request body validation error', 400, transformErrorMessage(validationResult.error.message));
            }
        }
        else {
            context.info('Request body is valid');
        }
    });
}