Initial content

Chapter 15/End of Chapter/part2app/dist/server/api/feathers_adapter.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.FeathersWrapper = void 0;
+class FeathersWrapper {
+    ws;
+    constructor(ws) {
+        this.ws = ws;
+    }
+    get(id) {
+        return this.ws.getOne(id);
+    }
+    find(params) {
+        return this.ws.getMany(params.query);
+    }
+    create(data, params) {
+        return this.ws.store(data);
+    }
+    remove(id, params) {
+        return this.ws.delete(id);
+    }
+    update(id, data, params) {
+        return this.ws.replace(id, data);
+    }
+    patch(id, data, params) {
+        return this.ws.modify(id, data);
+    }
+}
+exports.FeathersWrapper = FeathersWrapper;

Chapter 15/End of Chapter/part2app/dist/server/api/http_adapter.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.createAdapter = void 0;
+const validation_types_1 = require("./validation_types");
+function createAdapter(app, ws, baseUrl) {
+    app.get(baseUrl, async (req, resp) => {
+        try {
+            resp.json(await ws.getMany(req.query));
+            resp.end();
+        }
+        catch (err) {
+            writeErrorResponse(err, resp);
+        }
+    });
+    app.get(`${baseUrl}/:id`, async (req, resp) => {
+        try {
+            const data = await ws.getOne((req.params.id));
+            if (data == undefined) {
+                resp.writeHead(404);
+            }
+            else {
+                resp.json(data);
+            }
+            resp.end();
+        }
+        catch (err) {
+            writeErrorResponse(err, resp);
+        }
+    });
+    app.post(baseUrl, async (req, resp) => {
+        try {
+            const data = await ws.store(req.body);
+            resp.json(data);
+            resp.end();
+        }
+        catch (err) {
+            writeErrorResponse(err, resp);
+        }
+    });
+    app.delete(`${baseUrl}/:id`, async (req, resp) => {
+        try {
+            resp.json(await ws.delete(req.params.id));
+            resp.end();
+        }
+        catch (err) {
+            writeErrorResponse(err, resp);
+        }
+    });
+    app.put(`${baseUrl}/:id`, async (req, resp) => {
+        try {
+            resp.json(await ws.replace(req.params.id, req.body));
+            resp.end();
+        }
+        catch (err) {
+            writeErrorResponse(err, resp);
+        }
+    });
+    app.patch(`${baseUrl}/:id`, async (req, resp) => {
+        try {
+            resp.json(await ws.modify(req.params.id, req.body));
+            resp.end();
+        }
+        catch (err) {
+            writeErrorResponse(err, resp);
+        }
+    });
+    const writeErrorResponse = (err, resp) => {
+        console.error(err);
+        resp.writeHead(err instanceof validation_types_1.ValidationError ? 400 : 500);
+        resp.end();
+    };
+}
+exports.createAdapter = createAdapter;

Chapter 15/End of Chapter/part2app/dist/server/api/index.js

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+"use strict";
+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 (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    __setModuleDefault(result, mod);
+    return result;
+};
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.createApi = void 0;
+const results_api_1 = require("./results_api");
+const validation_adapter_1 = require("./validation_adapter");
+const results_api_validation_1 = require("./results_api_validation");
+const feathers_adapter_1 = require("./feathers_adapter");
+const feathers_1 = require("@feathersjs/feathers");
+const express_1 = __importStar(require("@feathersjs/express"));
+const validation_types_1 = require("./validation_types");
+const auth_1 = require("../auth");
+const passport_1 = __importDefault(require("passport"));
+const createApi = (app) => {
+    const feathersApp = (0, express_1.default)((0, feathers_1.feathers)(), app).configure((0, express_1.rest)());
+    const service = new validation_adapter_1.Validator(new results_api_1.ResultWebService(), results_api_validation_1.ResultWebServiceValidation);
+    feathersApp.use('/api/results', passport_1.default.authenticate("jwt", { session: false }), (req, resp, next) => {
+        req.feathers.user = req.user;
+        req.feathers.authenticated
+            = req.authenticated = req.user !== undefined;
+        next();
+    }, new feathers_adapter_1.FeathersWrapper(service));
+    feathersApp.hooks({
+        error: {
+            all: [(ctx) => {
+                    if (ctx.error instanceof validation_types_1.ValidationError) {
+                        ctx.http = { status: 400 };
+                        ctx.error = undefined;
+                    }
+                }]
+        },
+        before: {
+            create: [(0, auth_1.roleHook)("Users")],
+            remove: [(0, auth_1.roleHook)("Admins")],
+            update: [(0, auth_1.roleHook)("Admins")],
+            patch: [(0, auth_1.roleHook)("Admins")]
+        }
+    });
+};
+exports.createApi = createApi;

Chapter 15/End of Chapter/part2app/dist/server/api/results_api.js

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+"use strict";
+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 (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    __setModuleDefault(result, mod);
+    return result;
+};
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ResultWebService = void 0;
+const data_1 = __importDefault(require("../data"));
+const jsonpatch = __importStar(require("fast-json-patch"));
+const validation_functions_1 = require("./validation_functions");
+const results_api_validation_1 = require("./results_api_validation");
+class ResultWebService {
+    getOne(id) {
+        return data_1.default.getResultById(id);
+    }
+    getMany(query) {
+        if (query.name) {
+            return data_1.default.getResultsByName(query.name, 10);
+        }
+        else {
+            return data_1.default.getAllResults(10);
+        }
+    }
+    async store(data) {
+        const { name, age, years } = data;
+        const nextage = age + years;
+        const id = await data_1.default.saveResult({ id: 0, name, age,
+            years, nextage });
+        return await data_1.default.getResultById(id);
+    }
+    delete(id) {
+        return data_1.default.delete(Number.parseInt(id));
+    }
+    replace(id, data) {
+        const { name, age, years, nextage } = data;
+        const validated = (0, validation_functions_1.validateModel)({ name, age, years, nextage }, results_api_validation_1.ResultModelValidation);
+        return data_1.default.update({ id, ...validated });
+    }
+    async modify(id, data) {
+        const dbData = await this.getOne(id);
+        if (dbData !== undefined) {
+            return await this.replace(id, jsonpatch.applyPatch(dbData, data).newDocument);
+        }
+    }
+}
+exports.ResultWebService = ResultWebService;

Chapter 15/End of Chapter/part2app/dist/server/api/results_api_validation.js

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+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ResultModelValidation = exports.ResultWebServiceValidation = void 0;
+const validator_1 = __importDefault(require("validator"));
+const intValidator = {
+    validation: [val => validator_1.default.isInt(val.toString())],
+    converter: (val) => Number.parseInt(val)
+};
+const partialResultValidator = {
+    name: [(val) => !validator_1.default.isEmpty(val)],
+    age: intValidator,
+    years: intValidator
+};
+exports.ResultWebServiceValidation = {
+    keyValidator: intValidator,
+    store: partialResultValidator,
+    replace: {
+        ...partialResultValidator,
+        nextage: intValidator
+    }
+};
+exports.ResultModelValidation = {
+    propertyRules: { ...partialResultValidator, nextage: intValidator },
+    modelRule: [(m) => m.nextage === m.age + m.years]
+};

Chapter 15/End of Chapter/part2app/dist/server/api/validation_adapter.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Validator = void 0;
+const validation_functions_1 = require("./validation_functions");
+class Validator {
+    ws;
+    validation;
+    constructor(ws, validation) {
+        this.ws = ws;
+        this.validation = validation;
+    }
+    getOne(id) {
+        return this.ws.getOne(this.validateId(id));
+    }
+    getMany(query) {
+        if (this.validation.getMany) {
+            query = (0, validation_functions_1.validate)(query, this.validation.getMany);
+        }
+        return this.ws.getMany(query);
+    }
+    store(data) {
+        if (this.validation.store) {
+            data = (0, validation_functions_1.validate)(data, this.validation.store);
+        }
+        return this.ws.store(data);
+    }
+    delete(id) {
+        return this.ws.delete(this.validateId(id));
+    }
+    replace(id, data) {
+        if (this.validation.replace) {
+            data = (0, validation_functions_1.validate)(data, this.validation.replace);
+        }
+        return this.ws.replace(this.validateId(id), data);
+    }
+    modify(id, data) {
+        if (this.validation.modify) {
+            data = (0, validation_functions_1.validate)(data, this.validation.modify);
+        }
+        return this.ws.modify(this.validateId(id), data);
+    }
+    validateId(val) {
+        return (0, validation_functions_1.validateIdProperty)(val, this.validation);
+    }
+}
+exports.Validator = Validator;

Chapter 15/End of Chapter/part2app/dist/server/api/validation_functions.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.validateModel = exports.validateIdProperty = exports.validate = void 0;
+const validation_types_1 = require("./validation_types");
+function validate(data, reqs) {
+    let validatedData = {};
+    Object.entries(reqs).forEach(([prop, rule]) => {
+        const [valid, value] = applyRule(data[prop], rule);
+        if (valid) {
+            validatedData[prop] = value;
+        }
+        else {
+            throw new validation_types_1.ValidationError(prop, "Validation Error");
+        }
+    });
+    return validatedData;
+}
+exports.validate = validate;
+function applyRule(val, rule) {
+    const required = Array.isArray(rule) ? true : rule.required;
+    const checks = Array.isArray(rule) ? rule : rule.validation;
+    const convert = Array.isArray(rule) ? (v) => v : rule.converter;
+    if (val === null || val == undefined || val === "") {
+        return [required ? false : true, val];
+    }
+    let valid = true;
+    checks.forEach(check => {
+        if (!check(val)) {
+            valid = false;
+        }
+    });
+    return [valid, convert ? convert(val) : val];
+}
+function validateIdProperty(val, v) {
+    if (v.keyValidator) {
+        const [valid, value] = applyRule(val, v.keyValidator);
+        if (valid) {
+            return value;
+        }
+        throw new validation_types_1.ValidationError("ID", "Validation Error");
+    }
+    return val;
+}
+exports.validateIdProperty = validateIdProperty;
+function validateModel(model, rules) {
+    if (rules.propertyRules) {
+        model = validate(model, rules.propertyRules);
+    }
+    if (rules.modelRule) {
+        const [valid, data] = applyRule(model, rules.modelRule);
+        if (valid) {
+            return data;
+        }
+        throw new validation_types_1.ValidationError("Model", "Validation Error");
+    }
+}
+exports.validateModel = validateModel;

Chapter 15/End of Chapter/part2app/dist/server/api/validation_types.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ValidationError = void 0;
+class ValidationError {
+    name;
+    message;
+    constructor(name, message) {
+        this.name = name;
+        this.message = message;
+    }
+    stack;
+    cause;
+}
+exports.ValidationError = ValidationError;