weiter gehts

modules/mongointerface.js

@@ -18,6 +18,8 @@ const doMongo = async function(cmd, options) {
         await client.connect()
         if (cmd === 'getdata') {
             erg = await getAPIdataOne(client, options)
+        } else if (cmd === 'getlastdata') {
+            erg = await getAPIlastDataOne(client, options)
         } else if (cmd === 'putdata') {
             erg = await putAPIdataOne(client, options)
         } else if (cmd === 'deldata') {
@@ -53,6 +55,18 @@ async function getAPIdataOne(client, options) {
     return erg
 }
 
+async function getAPIlastDataOne(client, options) {
+    let erg = {err: null}
+    try {
+        erg.data = await client.db(MONGOBASE).collection(COLLECTION).findOne({},{ projection:{_id: 0}, sort: {$natural: -1}})
+    } catch
+        (e) {
+        console.error(e)
+        erg.err = e
+    }
+    return erg
+}
+
 async function putAPIdataOne(client, options) {
     let erg = {err: null}
     const query = {curdate: options.data.curdate}