First commit

.gitignore

@@ -0,0 +1,4 @@
+.env
+dist
+node_modules
+persist

package.json

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+{
+  "name": "simple-review-server",
+  "version": "1.0.0",
+  "description": "",
+  "main": "./dist/main.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "build": "tsc -p .",
+    "start": "node ./dist/main.js"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "prettier": "^3.3.3",
+    "typescript": "^5.5.4"
+  },
+  "dependencies": {
+    "@types/node": "^22.3.0",
+    "chalk": "4.1.0",
+    "dotenv": "^16.4.5",
+    "yup": "^1.4.0"
+  }
+}

pnpm-lock.yaml

@@ -0,0 +1,120 @@
+lockfileVersion: '6.0'
+
+settings:
+  autoInstallPeers: true
+  excludeLinksFromLockfile: false
+
+dependencies:
+  '@types/node':
+    specifier: ^22.3.0
+    version: 22.3.0
+  chalk:
+    specifier: 4.1.0
+    version: 4.1.0
+  dotenv:
+    specifier: ^16.4.5
+    version: 16.4.5
+  yup:
+    specifier: ^1.4.0
+    version: 1.4.0
+
+devDependencies:
+  prettier:
+    specifier: ^3.3.3
+    version: 3.3.3
+  typescript:
+    specifier: ^5.5.4
+    version: 5.5.4
+
+packages:
+
+  /@types/node@22.3.0:
+    resolution: {integrity: sha512-nrWpWVaDZuaVc5X84xJ0vNrLvomM205oQyLsRt7OHNZbSHslcWsvgFR7O7hire2ZonjLrWBbedmotmIlJDVd6g==}
+    dependencies:
+      undici-types: 6.18.2
+    dev: false
+
+  /ansi-styles@4.3.0:
+    resolution: {integrity: sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==}
+    engines: {node: '>=8'}
+    dependencies:
+      color-convert: 2.0.1
+    dev: false
+
+  /chalk@4.1.0:
+    resolution: {integrity: sha512-qwx12AxXe2Q5xQ43Ac//I6v5aXTipYrSESdOgzrN+9XjgEpyjpKuvSGaN4qE93f7TQTlerQQ8S+EQ0EyDoVL1A==}
+    engines: {node: '>=10'}
+    dependencies:
+      ansi-styles: 4.3.0
+      supports-color: 7.2.0
+    dev: false
+
+  /color-convert@2.0.1:
+    resolution: {integrity: sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==}
+    engines: {node: '>=7.0.0'}
+    dependencies:
+      color-name: 1.1.4
+    dev: false
+
+  /color-name@1.1.4:
+    resolution: {integrity: sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==}
+    dev: false
+
+  /dotenv@16.4.5:
+    resolution: {integrity: sha512-ZmdL2rui+eB2YwhsWzjInR8LldtZHGDoQ1ugH85ppHKwpUHL7j7rN0Ti9NCnGiQbhaZ11FpR+7ao1dNsmduNUg==}
+    engines: {node: '>=12'}
+    dev: false
+
+  /has-flag@4.0.0:
+    resolution: {integrity: sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==}
+    engines: {node: '>=8'}
+    dev: false
+
+  /prettier@3.3.3:
+    resolution: {integrity: sha512-i2tDNA0O5IrMO757lfrdQZCc2jPNDVntV0m/+4whiDfWaTKfMNgR7Qz0NAeGz/nRqF4m5/6CLzbP4/liHt12Ew==}
+    engines: {node: '>=14'}
+    hasBin: true
+    dev: true
+
+  /property-expr@2.0.6:
+    resolution: {integrity: sha512-SVtmxhRE/CGkn3eZY1T6pC8Nln6Fr/lu1mKSgRud0eC73whjGfoAogbn78LkD8aFL0zz3bAFerKSnOl7NlErBA==}
+    dev: false
+
+  /supports-color@7.2.0:
+    resolution: {integrity: sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==}
+    engines: {node: '>=8'}
+    dependencies:
+      has-flag: 4.0.0
+    dev: false
+
+  /tiny-case@1.0.3:
+    resolution: {integrity: sha512-Eet/eeMhkO6TX8mnUteS9zgPbUMQa4I6Kkp5ORiBD5476/m+PIRiumP5tmh5ioJpH7k51Kehawy2UDfsnxxY8Q==}
+    dev: false
+
+  /toposort@2.0.2:
+    resolution: {integrity: sha512-0a5EOkAUp8D4moMi2W8ZF8jcga7BgZd91O/yabJCFY8az+XSzeGyTKs0Aoo897iV1Nj6guFq8orWDS96z91oGg==}
+    dev: false
+
+  /type-fest@2.19.0:
+    resolution: {integrity: sha512-RAH822pAdBgcNMAfWnCBU3CFZcfZ/i1eZjwFU/dsLKumyuuP3niueg2UAukXYF0E2AAoc82ZSSf9J0WQBinzHA==}
+    engines: {node: '>=12.20'}
+    dev: false
+
+  /typescript@5.5.4:
+    resolution: {integrity: sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==}
+    engines: {node: '>=14.17'}
+    hasBin: true
+    dev: true
+
+  /undici-types@6.18.2:
+    resolution: {integrity: sha512-5ruQbENj95yDYJNS3TvcaxPMshV7aizdv/hWYjGIKoANWKjhWNBsr2YEuYZKodQulB1b8l7ILOuDQep3afowQQ==}
+    dev: false
+
+  /yup@1.4.0:
+    resolution: {integrity: sha512-wPbgkJRCqIf+OHyiTBQoJiP5PFuAXaWiJK6AmYkzQAh5/c2K9hzSApBZG5wV9KoKSePF7sAxmNSvh/13YHkFDg==}
+    dependencies:
+      property-expr: 2.0.6
+      tiny-case: 1.0.3
+      toposort: 2.0.2
+      type-fest: 2.19.0
+    dev: false

src/environment.d.ts

@@ -0,0 +1,9 @@
+declare global {
+  namespace NodeJS {
+    interface ProcessEnv {
+      PORT: string;
+    }
+  }
+}
+
+export {};

src/main.ts

@@ -0,0 +1,69 @@
+import chalk from "chalk";
+import fs from "fs";
+import http from "http";
+import dotenv from "dotenv";
+import { Review, reviewSchema } from "./types";
+import { checkFile } from "./utils";
+import { dir } from "./utils";
+dotenv.config();
+
+const origin = chalk.bold(chalk.yellow("main.js: "));
+const port = +process.env.PORT ?? 8080;
+const contentType = { "Content-Type": "application/json" };
+const fileName = dir + "data.json";
+
+http
+  .createServer((req, res) => {
+    const isPost = req.method === "POST";
+
+    req.on("data", async (chunk) => {
+      let data: Review[] = checkFile("data.json", "utf8");
+      let temp: any;
+
+      try {
+        temp = JSON.parse(chunk);
+      } catch (err) {
+        console.error(origin + "Chunk is not valid JSON");
+        return;
+      }
+
+      await reviewSchema
+        .validate(temp)
+        .then((valid) => {
+          req.on("end", () => {
+            console.log(
+              origin + `${chalk.green(req.headers["user-agent"])} sent:`,
+              valid,
+            );
+
+            data.push(valid);
+            fs.writeFileSync(fileName, JSON.stringify(data, null, 2));
+
+            res.writeHead(200, contentType);
+            res.write("OK");
+            res.end();
+          });
+        })
+        .catch((error) => {
+          console.error(error);
+
+          res.writeHead(415, contentType);
+          res.write(JSON.stringify({ error: "Invalid content type." }));
+          res.end();
+        });
+    });
+
+    req.on("end", () => {
+      if (!isPost) {
+        console.log(
+          origin + `${chalk.green(req.headers["user-agent"])} sent no body.`,
+        );
+        res.writeHead(415, contentType);
+        res.write(JSON.stringify({ error: "Invalid content type." }));
+        res.end();
+      }
+    });
+  })
+  .listen(port || 8080);
+
+console.log(origin + `Server started on port ${chalk.green(port)}`);

src/types/index.ts

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+export * from "./schema";

src/types/schema.ts

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+import { object, string, number, InferType } from "yup";
+
+export const reviewSchema = object({
+  username: string().required(),
+  rating: number().positive().max(5).required(),
+  content: string(),
+});
+
+export type Review = InferType<typeof reviewSchema>;

src/utils.ts

@@ -0,0 +1,21 @@
+import fs from "fs";
+import { Review } from "./types";
+
+export const dir = "./persist/";
+
+export function checkFile(file: string, encoding: fs.EncodingOption): Review[] {
+  const fullPath = dir + file;
+  let final: Review[];
+
+  if (fs.existsSync(dir)) {
+    const data = fs.readFileSync(fullPath, encoding);
+
+    final = !data.toString().trim() ? [] : JSON.parse(data.toString());
+  } else {
+    fs.mkdirSync(dir);
+    fs.createWriteStream(fullPath);
+    final = [];
+  }
+
+  return final;
+}

tsconfig.json

@@ -0,0 +1,108 @@
+{
+  "compilerOptions": {
+    /* Visit https://aka.ms/tsconfig to read more about this file */
+
+    /* Projects */
+    // "incremental": true,                              /* Save .tsbuildinfo files to allow for incremental compilation of projects. */
+    // "composite": true,                                /* Enable constraints that allow a TypeScript project to be used with project references. */
+    // "tsBuildInfoFile": "./.tsbuildinfo",              /* Specify the path to .tsbuildinfo incremental compilation file. */
+    // "disableSourceOfProjectReferenceRedirect": true,  /* Disable preferring source files instead of declaration files when referencing composite projects. */
+    // "disableSolutionSearching": true,                 /* Opt a project out of multi-project reference checking when editing. */
+    // "disableReferencedProjectLoad": true,             /* Reduce the number of projects loaded automatically by TypeScript. */
+
+    /* Language and Environment */
+    "target": "es2016",                                  /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
+    // "lib": [],                                        /* Specify a set of bundled library declaration files that describe the target runtime environment. */
+    // "jsx": "preserve",                                /* Specify what JSX code is generated. */
+    // "experimentalDecorators": true,                   /* Enable experimental support for legacy experimental decorators. */
+    // "emitDecoratorMetadata": true,                    /* Emit design-type metadata for decorated declarations in source files. */
+    // "jsxFactory": "",                                 /* Specify the JSX factory function used when targeting React JSX emit, e.g. 'React.createElement' or 'h'. */
+    // "jsxFragmentFactory": "",                         /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. 'React.Fragment' or 'Fragment'. */
+    // "jsxImportSource": "",                            /* Specify module specifier used to import the JSX factory functions when using 'jsx: react-jsx*'. */
+    // "reactNamespace": "",                             /* Specify the object invoked for 'createElement'. This only applies when targeting 'react' JSX emit. */
+    // "noLib": true,                                    /* Disable including any library files, including the default lib.d.ts. */
+    // "useDefineForClassFields": true,                  /* Emit ECMAScript-standard-compliant class fields. */
+    // "moduleDetection": "auto",                        /* Control what method is used to detect module-format JS files. */
+
+    /* Modules */
+    "module": "commonjs",                                /* Specify what module code is generated. */
+    "rootDir": "./src",                                  /* Specify the root folder within your source files. */
+    // "moduleResolution": "node10",                     /* Specify how TypeScript looks up a file from a given module specifier. */
+    // "baseUrl": "./",                                  /* Specify the base directory to resolve non-relative module names. */
+    // "paths": {},                                      /* Specify a set of entries that re-map imports to additional lookup locations. */
+    // "rootDirs": [],                                   /* Allow multiple folders to be treated as one when resolving modules. */
+    // "typeRoots": [],                                  /* Specify multiple folders that act like './node_modules/@types'. */
+    // "types": [],                                      /* Specify type package names to be included without being referenced in a source file. */
+    // "allowUmdGlobalAccess": true,                     /* Allow accessing UMD globals from modules. */
+    // "moduleSuffixes": [],                             /* List of file name suffixes to search when resolving a module. */
+    // "allowImportingTsExtensions": true,               /* Allow imports to include TypeScript file extensions. Requires '--moduleResolution bundler' and either '--noEmit' or '--emitDeclarationOnly' to be set. */
+    // "resolvePackageJsonExports": true,                /* Use the package.json 'exports' field when resolving package imports. */
+    // "resolvePackageJsonImports": true,                /* Use the package.json 'imports' field when resolving imports. */
+    // "customConditions": [],                           /* Conditions to set in addition to the resolver-specific defaults when resolving imports. */
+    // "resolveJsonModule": true,                        /* Enable importing .json files. */
+    // "allowArbitraryExtensions": true,                 /* Enable importing files with any extension, provided a declaration file is present. */
+    // "noResolve": true,                                /* Disallow 'import's, 'require's or '<reference>'s from expanding the number of files TypeScript should add to a project. */
+
+    /* JavaScript Support */
+    // "allowJs": true,                                  /* Allow JavaScript files to be a part of your program. Use the 'checkJS' option to get errors from these files. */
+    // "checkJs": true,                                  /* Enable error reporting in type-checked JavaScript files. */
+    // "maxNodeModuleJsDepth": 1,                        /* Specify the maximum folder depth used for checking JavaScript files from 'node_modules'. Only applicable with 'allowJs'. */
+
+    /* Emit */
+    // "declaration": true,                              /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
+    // "declarationMap": true,                           /* Create sourcemaps for d.ts files. */
+    // "emitDeclarationOnly": true,                      /* Only output d.ts files and not JavaScript files. */
+    "sourceMap": true,                                /* Create source map files for emitted JavaScript files. */
+    // "inlineSourceMap": true,                          /* Include sourcemap files inside the emitted JavaScript. */
+    // "outFile": "./",                                  /* Specify a file that bundles all outputs into one JavaScript file. If 'declaration' is true, also designates a file that bundles all .d.ts output. */
+    "outDir": "./dist",                                   /* Specify an output folder for all emitted files. */
+    "removeComments": true,                           /* Disable emitting comments. */
+    // "noEmit": true,                                   /* Disable emitting files from a compilation. */
+    // "importHelpers": true,                            /* Allow importing helper functions from tslib once per project, instead of including them per-file. */
+    // "downlevelIteration": true,                       /* Emit more compliant, but verbose and less performant JavaScript for iteration. */
+    "sourceRoot": "./src",                                 /* Specify the root path for debuggers to find the reference source code. */
+    // "mapRoot": "",                                    /* Specify the location where debugger should locate map files instead of generated locations. */
+    // "inlineSources": true,                            /* Include source code in the sourcemaps inside the emitted JavaScript. */
+    // "emitBOM": true,                                  /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files. */
+    // "newLine": "crlf",                                /* Set the newline character for emitting files. */
+    // "stripInternal": true,                            /* Disable emitting declarations that have '@internal' in their JSDoc comments. */
+    // "noEmitHelpers": true,                            /* Disable generating custom helper functions like '__extends' in compiled output. */
+    // "noEmitOnError": true,                            /* Disable emitting files if any type checking errors are reported. */
+    // "preserveConstEnums": true,                       /* Disable erasing 'const enum' declarations in generated code. */
+    // "declarationDir": "./",                           /* Specify the output directory for generated declaration files. */
+
+    /* Interop Constraints */
+    // "isolatedModules": true,                          /* Ensure that each file can be safely transpiled without relying on other imports. */
+    // "verbatimModuleSyntax": true,                     /* Do not transform or elide any imports or exports not marked as type-only, ensuring they are written in the output file's format based on the 'module' setting. */
+    // "isolatedDeclarations": true,                     /* Require sufficient annotation on exports so other tools can trivially generate declaration files. */
+    // "allowSyntheticDefaultImports": true,             /* Allow 'import x from y' when a module doesn't have a default export. */
+    "esModuleInterop": true,                             /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */
+    // "preserveSymlinks": true,                         /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */
+    "forceConsistentCasingInFileNames": true,            /* Ensure that casing is correct in imports. */
+
+    /* Type Checking */
+    "strict": true,                                      /* Enable all strict type-checking options. */
+    // "noImplicitAny": true,                            /* Enable error reporting for expressions and declarations with an implied 'any' type. */
+    // "strictNullChecks": true,                         /* When type checking, take into account 'null' and 'undefined'. */
+    // "strictFunctionTypes": true,                      /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */
+    // "strictBindCallApply": true,                      /* Check that the arguments for 'bind', 'call', and 'apply' methods match the original function. */
+    // "strictPropertyInitialization": true,             /* Check for class properties that are declared but not set in the constructor. */
+    // "noImplicitThis": true,                           /* Enable error reporting when 'this' is given the type 'any'. */
+    // "useUnknownInCatchVariables": true,               /* Default catch clause variables as 'unknown' instead of 'any'. */
+    "alwaysStrict": true,                             /* Ensure 'use strict' is always emitted. */
+    // "noUnusedLocals": true,                           /* Enable error reporting when local variables aren't read. */
+    // "noUnusedParameters": true,                       /* Raise an error when a function parameter isn't read. */
+    // "exactOptionalPropertyTypes": true,               /* Interpret optional property types as written, rather than adding 'undefined'. */
+    // "noImplicitReturns": true,                        /* Enable error reporting for codepaths that do not explicitly return in a function. */
+    // "noFallthroughCasesInSwitch": true,               /* Enable error reporting for fallthrough cases in switch statements. */
+    // "noUncheckedIndexedAccess": true,                 /* Add 'undefined' to a type when accessed using an index. */
+    // "noImplicitOverride": true,                       /* Ensure overriding members in derived classes are marked with an override modifier. */
+    // "noPropertyAccessFromIndexSignature": true,       /* Enforces using indexed accessors for keys declared using an indexed type. */
+    // "allowUnusedLabels": true,                        /* Disable error reporting for unused labels. */
+    // "allowUnreachableCode": true,                     /* Disable error reporting for unreachable code. */
+
+    /* Completeness */
+    // "skipDefaultLibCheck": true,                      /* Skip type checking .d.ts files that are included with TypeScript. */
+    "skipLibCheck": true                                 /* Skip type checking all .d.ts files. */
+  }
+}