Hyperledger Fabric- HistoryQueryIterator using nodejs

问题

I am trying to create hyperledger chaincode using nodejs and fabric-shim is new to me. I am trying to fetch history of an asset using getHistoryForKey().

I tried iterating through HistoryQueryIterator using while but i was not successful.

@Transaction()
public async getAllHistory(ctx:Context,key:string):Promise<void>{
    const history = await ctx.stub.getHistoryForKey(key);
     while(history.next()){
         history.next().then(value =>{
            console.info("================>",value.toString());
         })
         .catch(err =>{
            console.info("ERROR",err);
         })
     }

}

The above code gives [object Object].

If someone could point me in the right direction it would be helpful.