Some errors fixed, works for api.js

routes/api.js

@@ -0,0 +1,30 @@
+import express from 'express'
+
+import {getData4map} from "../actions/data4map.js"
+import * as cTable  from "../utilities/commands.js"
+import * as ERR from "../utilities/errortexts.js"
+
+export const apiRouter = express.Router();
+
+
+export const dispatchCommand = async (cmd, table, query, res) => {
+  for (let c of table) {
+    if (c.cmd === cmd) {
+      let erg = await c.func(query)
+      if (typeof erg === 'string') {
+        res.type('text')
+        res.send(erg)
+      } else {
+        res.json(erg)
+      }
+      return
+    }
+  }
+  res.json({err: ERR.CMNDUNKOWN})
+}
+
+// normal routes called from javascript client
+apiRouter.get('/:cmd', async (req, res) => {
+  await dispatchCommand(req.params.cmd, cTable.cmdTable, req.query, res)
+})
+