Questions tagged [pynamodb]
34 questions
1
vote
1 answer
How to create a read-only model attribute in pynamodb?
I'm working on a model which implements a read-only attribute with a simple hack:
from pynamodb.models import Model
class MyModel(Model):
[…]
updated_at = UTCDateTimeAttribute()
def save(self):
self.updated_at =…
l0b0
- 55,365
- 30
- 138
- 223
1
vote
1 answer
Error while using Global Secondary index in dynamodb in python
I have created a global secondary index in AWS dynamodb where In user table in which I am using the phone as GSI. I am getting an error with the message:
'Table UsersTable has no index: PHONE_INDEX'.
Below is the code snippet for the user table and…
shelam
- 11
- 4
1
vote
0 answers
'NoneType' object is not iterable when creating dynamodb record using pynamodb library
I am trying to create and save the record to DynamoDB
ServiceStateModel(
instance_id=service_request["instance_id"],
plan_id=service_request["plan_id"],
service_id=service_request["service_id"],
…
lapots
- 12,553
- 32
- 121
- 242
0
votes
1 answer
issue with setting dynamo db created_at field
I am trying to add a new field 'created_time' in my existing dynamodb. another field 'updated_time' field already exists.
I want to set the created_time only once, when the new record is created. updated_time updates at every change in record using…
Frid-j
- 25
- 5
0
votes
2 answers
DynamoDb AccessDeniedException when apparently making identical queries to table
I have two API calls to the BE that are fired simultaneously. Both access the same record in a DynamoDb table.
90% of the time, there is no issue.
10% of the time, I get the following error:
pynamodb.exceptions.QueryError: Failed to query items: An…
alitaleg
- 165
- 2
- 11
0
votes
1 answer
Why is PynamoDB Not projecting attributes from the main table in my query results?
I've got a PynamoDB table and index mapping defined as follows:
class Id2Index(LocalSecondaryIndex):
class Meta:
projection = AllProjection()
kind = UnicodeAttribute(hash_key=True)
id2 = UnicodeAttribute(range_key=True)
class…
CryptoFool
- 21,719
- 5
- 26
- 44
0
votes
0 answers
Pynamodb create model from nested json
how I can create model from nested json in pynamodb?
For example:
{ “user profile”: { “Name”:”test”, “born”:{ “year”:”2023” } }, … }
Andrii
- 11
- 3
0
votes
0 answers
Pynamodb: how do I create a Map of Sets from a dict?
I have a DynamoDB table where I want the items to have a field that is a map of a set of strings. I want to create this from a top level map like this:
kv_by_aws_account: Dict[str, Dict[str, Set[str]]] = {
"111111111111": {
"k1": {
…
John
- 10,837
- 17
- 78
- 141
0
votes
0 answers
PynamoDB TransactWrite NoCredentialError
I'm trying to TransactWrite using PynamoDB.
But, I'm getting botocore.exceptions.NoCredentialsError: Unable to locate credentials error.
I am sending a request to DynamoDB from local PC. And, since MFA is applied to the locally stored AWS Profile, I…
Seung-hee Han
- 75
- 1
- 9
0
votes
0 answers
Pynamodb Transaction not using local endpoint
Regardless of whatever I tried, pynamodb is not connecting to my local dynamodb.
Below is my model,
class OrderMarker(Model):
class Meta:
table_name = 'ddb_mrker_table'
connection = TableConnection(table_name='ddb_mrker_table',…
Jimson James
- 2,937
- 6
- 43
- 78
0
votes
1 answer
Can I create a Model from a TableConnection in PynamoDB?
I have existing DynamoDB tables created through an infrastructure-as-code implementation.
Within my application I would like to use the Model abstraction for this existing table.
I used TableConnection to connect to the existing table and run the…
Jason Strimpel
- 14,670
- 21
- 76
- 106
0
votes
2 answers
PynamoDB same model with multipe databases
The way PynamoDB is implemented is that it looks to a specific single DynamoDB table:
class UserModel(Model):
class Meta:
# Specific table.
table_name = 'dynamodb-user'
region = 'us-west-1'
The way my infrastructure…
Laimonas Sutkus
- 3,247
- 2
- 26
- 47
0
votes
1 answer
PynamoDB Creating GSI and LSI Python Error
Hello All hope you are fine
i am reaching out for some help as I am learning and experimenting with pynamodb
Goal to create LSI and GSI
Phase 1: create index and popular with fake data
import os
import boto3
import json
from faker import…
Soumil Nitin Shah
- 634
- 2
- 7
- 18
0
votes
1 answer
Pynamodb | Dynamodb
Hey i am pretty new to the pynamodb,
i want to know how to use pre-existing table in pynamodb without re-writing the models defination.
from pynamodb.connection import Connection
# Get a connection
conn = Connection(host='http://localhost:8000')
#…
Raj Shah
- 48
- 3
- 10
0
votes
1 answer
Saving object creation datetime using Pynamodb
I want to update the creation_datetime only when a new object is created and update the last_update_datetime on every update while using the save method. default_for_new is updating time even when the existing object is updating. any…
suresh
- 1
- 2