Created the link route

server/routes/link.js

@@ -0,0 +1,56 @@
+const {createLink, getLinkByAccess, listLinks, mapLink, getLinkById, deleteById} = require("../controller/link");
+const {validateSchema} = require("../util/validate");
+const {createLinkValidation, listLinksValidation} = require("../validations/link");
+const {getModule} = require("../controller/module");
+const app = require('express').Router();
+
+app.get("/:domain/list", async (req, res) => {
+    const error = await validateSchema(listLinksValidation, req.query);
+    if (error) return res.status(400).json({message: error});
+
+    let links = await listLinks(req.params.domain, req.query);
+    if (!links) return res.status(400).json({message: "Could not use the provided filter"});
+
+    res.json(links.map(link => mapLink(link)));
+});
+
+app.get("/:domain/:accessId", async (req, res) => {
+    let link = await getLinkByAccess(req.params.accessId, req.params.domain);
+    if (!link) return res.status(404).json({message: "This link does not exist"});
+
+    res.json(mapLink(link));
+});
+
+app.get("/:id", async (req, res) => {
+    let link = await getLinkById(req.params.id);
+    if (!link) return res.status(404).json({message: "This link does not exist"});
+
+    res.json(mapLink(link));
+});
+
+app.put("/", async (req, res) => {
+    const error = await validateSchema(createLinkValidation, req.body);
+    if (error) return res.status(400).json({message: error});
+
+    const module = getModule(req.body.type);
+    if (!module) return res.status(404).json({message: "The provided module does not exist"});
+
+    if (req.body.accessId && await getLinkByAccess(req.body.accessId, req.body.domainName) !== null)
+        return res.status(409).json({message: "The provided access id already exists"});
+
+    const moduleError = await validateSchema(module.info.validationSchema, req.body.meta);
+    if (moduleError) return res.status(400).json({message: moduleError});
+
+    let link = await createLink({...req.body, creatorId: req.user.id});
+
+    res.json({message: "Link created successfully", accessId: link.accessId})
+});
+
+app.delete("/:id", async (req, res) => {
+    if (!await getLinkById(req.params.id)) return res.status(404).json({message: "This link does not exist"});
+
+    await deleteById(req.params.id);
+    res.json({message: "Link successfully deleted"});
+});
+
+module.exports = app;