[DynamoDB][Resolved] The provided key element does not match the schema", "code": ValidationExceptio

Source code:

  searchByKeywors(attrName, value){
     var params = {
        TableName: "products",
        Key:{ attrName: value }
     };
    docClient.get(params, function(err, data) {
      if (err) {
          console.error("Unable to read item. Error JSON:", JSON.stringify(err, null, 2));
      } else {
          console.log("GetItem succeeded:", JSON.stringify(data, null, 2));
      }
    });
  }

I found it's really strange that the object key of Key value in params doesn't support dynamic value here, this solution is not the best method, if I found another method to do this, I will update later:

Updated code:

  searchByKeywors(attrName, value){
     var params = {
        TableName: "products",
        Key:{ "name": value }
     };
    docClient.get(params, function(err, data) {
      if (err) {
          console.error("Unable to read item. Error JSON:", JSON.stringify(err, null, 2));
      } else {
          console.log("GetItem succeeded:", JSON.stringify(data, null, 2));
      }
    });
  }