Insert byte[] in collection

[mirsadmrkaljevic]

This is my code: Map<String, Object> query = new HashMap<String, Object>(); byte[] array = new byte[32]; . . query.put("temp" , array); . . mMeteor.insert("chats", query);

In MongoDb I have collection(scheme):

export const Chats = new Mongo.Collection('chats'); ChatsSchema = new SimpleSchema({ temp: { type: Uint8Array, },.... When I use ResultListener in insert method, it give me Error 400 and "{ name ."temp", type : "expectedConstructor" , value : NDQ1NDQ4NDU2MTU2NjQ2NDQ1MzE1NDU2MTU=" }

[ocram]

Good question, thanks!

This ultimately depends on how Jackson serializes your Java data to JSON strings. So you may just as well try serializing this with Jackson alone (if you like) and see what JSON output is produced.

For byte[], Jackson correctly (as per common conventions) interprets this as binary data and returns a Base64 string. So that's not what you want.

Can you try short[] instead? While the size of the numbers is not enforced correctly this way, you may enforce the correct type in your own code. In JavaScript, you could turn a normal array to Uint8Array using the Uint8Array.from method.

Does that help?

[mirsadmrkaljevic]

No, it did not work with short [ ] or int []. I have to convert Base64.String into Uint8Array on server side, and then I solved the problem.

One more question for you. Is this MeteorSingleton thread safe ?

[ocram]

Okay, thanks. That's a useful workaround for now, at least.

Regarding thread safety, I can't really make any guarantees here. Sorry! Looking at other issues, it seems it's rather not safe.