101 lines
3.1 KiB
JavaScript
101 lines
3.1 KiB
JavaScript
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require("dotenv").config();
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const express = require("express");
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const bodyParser = require("body-parser");
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const { User, Post, sequelize } = require("./models");
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const app = express();
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app.use(bodyParser.json());
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// Helper to get model by resource name
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const models = { users: User, posts: Post };
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// Sync DB
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sequelize.sync();
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// TreeQL-style dynamic GET
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app.get("/:resource/:id?/:subresource?", async (req, res) => {
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const { resource, id, subresource } = req.params;
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const Model = models[resource];
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if (!Model) return res.status(404).json({ error: "Resource not found" });
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try {
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if (id) {
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const instance = await Model.findByPk(
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id,
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subresource ? { include: subresource } : {}
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);
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if (!instance) return res.status(404).json({ error: "Not found" });
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if (subresource && instance[subresource]) {
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return res.json(instance[subresource]);
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}
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return res.json(instance);
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} else {
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const all = await Model.findAll();
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return res.json(all);
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}
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} catch (e) {
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return res.status(500).json({ error: e.message });
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}
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});
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// TreeQL-style POST (create resource or subresource)
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app.post("/:resource/:id?/:subresource?", async (req, res) => {
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const { resource, id, subresource } = req.params;
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const Model = models[resource];
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if (!Model) return res.status(404).json({ error: "Resource not found" });
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try {
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if (id && subresource) {
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// e.g. POST /users/1/posts
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const parent = await models[resource].findByPk(id);
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if (!parent) return res.status(404).json({ error: "Parent not found" });
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const childModel = models[subresource];
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if (!childModel)
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return res.status(404).json({ error: "Subresource not found" });
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const child = await childModel.create({ ...req.body, UserId: id });
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return res.status(201).json(child);
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} else {
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// e.g. POST /users
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const instance = await Model.create(req.body);
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return res.status(201).json(instance);
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}
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} catch (e) {
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return res.status(500).json({ error: e.message });
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}
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});
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// TreeQL-style PUT (update resource)
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app.put("/:resource/:id", async (req, res) => {
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const { resource, id } = req.params;
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const Model = models[resource];
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if (!Model) return res.status(404).json({ error: "Resource not found" });
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try {
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const instance = await Model.findByPk(id);
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if (!instance) return res.status(404).json({ error: "Not found" });
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await instance.update(req.body);
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return res.json(instance);
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} catch (e) {
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return res.status(500).json({ error: e.message });
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}
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});
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// TreeQL-style DELETE (delete resource)
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app.delete("/:resource/:id", async (req, res) => {
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const { resource, id } = req.params;
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const Model = models[resource];
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if (!Model) return res.status(404).json({ error: "Resource not found" });
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try {
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const instance = await Model.findByPk(id);
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if (!instance) return res.status(404).json({ error: "Not found" });
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await instance.destroy();
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return res.json({ success: true });
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} catch (e) {
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return res.status(500).json({ error: e.message });
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}
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});
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const PORT = process.env.PORT || 3000;
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app.listen(PORT, () => console.log(`TreeQL API running on port ${PORT}`));
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