London class-10- Junita Lama-Node module-week 2-chat server react app

[Junitalama]

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Notes

• What did you find easy?

• What did you find hard?

• What do you still not understand?

• Any other notes?

[ShayanMahnam]

Great job, Junita! Your work is amazing. I'll provide some advice and feedback in further comments.

[ShayanMahnam]

You have your own front end now you dont need this anymore

[ShayanMahnam]

you can do error handling like this and generate id for msgs here:(generate id here its just a example in real world we dont use this we will use uuid)

app.post("/messages",function(request,response){constnewMessage=request.body;// Check if the 'from' and 'text' properties are present in the request bodyif(!newMessage.from||!newMessage.text){returnresponse.status(400).json({error: "Both 'from' and 'text' are required."});}else{// Generate a new unique id for the messagenewMessage.id=messages.length;messages.push(newMessage);response.status(201).json(newMessage);console.log(newMessage);}});

[ShayanMahnam]

you can validate once more to see if the msg with that id is there

app.get("/messages/:id",function(request,response){constidToFind=Number(request.params.id);constmessage=messages.find((msg)=>msg.id===idToFind);// Check if the message with the provided ID existsif(message){response.json(message);}else{response.status(404).json({error: "Message not found."});}});

[ShayanMahnam]

same check check if the message exists

app.delete("/messages/:id",function(request,response){constidToDelete=Number(request.params.id);constmessageIndex=messages.findIndex((msg)=>msg.id===idToDelete);// Check if the message with the provided ID existsif(messageIndex!==-1){constdeletedMessage=messages.splice(messageIndex,1);response.json(deletedMessage[0]);}else{response.status(404).json({error: "Message not found."});}});

[ShayanMahnam]

app.get("/messages/latest",(req,res)=>{conststartIndex=Math.max(messages.length-10,0);constlatestMessages=messages.slice(startIndex);res.json(latestMessages);});

[ShayanMahnam]

app.get("/messages/search",(req,res)=>{constsearchText=req.query.text.toLowerCase();constresult=messages.filter((msg)=>msg.text.toLowerCase().includes(searchText));res.json(result);});

[ShayanMahnam]

its good to have some msgs for app.linsten to make sure when you run it, its working

constport=8080;app.listen(port,()=>{console.log(`Server is running on http://localhost:${port}`);});

[Junitalama]

Great job, Junita! Your work is amazing. I'll provide some advice and feedback in further comments.

@ShayanMahnam Thank you so much for reviewing it.