4bnode/lib/routeFile.js

4bnode is a CLI-powered backend development platform with a built-in visual dashboard to generate, manage, and test Node.js/Express APIs faster.

import fs from "fs";
import path from "path";
import { getProjectRoot } from "./project.js";
import { addImportToContent, insertCodeIntoContent } from "./codegen.js";

export function getRouteFilePath(routeFile) {
  return path.join(getProjectRoot(), "src", "routes", routeFile);
}

export function addImportToRoute(routeFilePath, importStatement) {
  const original = fs.readFileSync(routeFilePath, "utf8");
  const content = addImportToContent(original, importStatement);
  // Only write when the import was actually new (avoids spurious nodemon restarts).
  if (content !== original) {
    fs.writeFileSync(routeFilePath, content, "utf8");
  }
  return content;
}

export function insertCodeIntoRoute(routeFilePath, codeBlock) {
  const content = insertCodeIntoContent(
    fs.readFileSync(routeFilePath, "utf8"),
    codeBlock
  );
  fs.writeFileSync(routeFilePath, content, "utf8");
}

export function detectHttpMethod(routeFilePath) {
  const content = fs.readFileSync(routeFilePath, "utf8");
  const methodRegex =
    /router\.(get|post|put|patch|delete)\((['"`])\/.*?\2,\s*async\s*\(req,\s*res/;
  const match = content.match(methodRegex);
  return match ? match[1].toLowerCase() : "post";
}

export function getRequestDataSource(method) {
  return method === "get" || method === "delete" ? "req.query" : "req.body";
}