handler.py

import json
import boto3
from boto3.dynamodb.conditions import Key

def lambda_handler(event, context):
	client = boto3.resource('dynamodb')
	table = client.Table('Transactions')

	#1. Example - Get Item By Id

	response = table.get_item(
		Key={
			'TransactionType_OriginCountry': 'PURCHASE_USA',
			'Date': '2019-11-17'
		}
	)

	print(response['Item'])

	print('\n\n\n-----\n\n\n')

	#2. Example 2 - Query by Partition Key / Sort Key Criteria

	response = table.query(
		KeyConditionExpression=Key('TransactionType_OriginCountry').eq('PURCHASE_USA') & Key('Date').gt('2019-11-15')
	)

	items = response['Items']
	for item in items:
		print(item)

[import json
import boto3
from boto3.dynamodb.conditions import Key

def lambda_handler(event, context):
client = boto3.resource('dynamodb')
table = client.Table('voters')

#1. Example - Get Item By Id

response = table.get_item(
	Key={
		"id" : event["id"],
	}
)

print(response['Item'])](url)

I'm getting error for this

Response:
{
"errorMessage": "An error occurred (ValidationException) when calling the GetItem operation: The provided key element does not match the schema",
"errorType": "ClientError",
"stackTrace": [
" File "/var/task/lambda_function.py", line 11, in lambda_handler\n response = table.get_item(\n",
" File "/var/runtime/boto3/resources/factory.py", line 520, in do_action\n response = action(self, *args, **kwargs)\n",
" File "/var/runtime/boto3/resources/action.py", line 83, in call\n response = getattr(parent.meta.client, operation_name)(**params)\n",
" File "/var/runtime/botocore/client.py", line 272, in _api_call\n return self._make_api_call(operation_name, kwargs)\n",
" File "/var/runtime/botocore/client.py", line 576, in _make_api_call\n raise error_class(parsed_response, operation_name)\n"
]
}

I have the table created with name 'voters' , partition key 'id' , I'm giving the key vales in the test configuration, but I'm getting this error.

I tried with returning the vale as well. I get the same error with this,

return(response['Item'])

I checked by changing event["id"] to event.id
The get this error.

Response:
{
"errorMessage": "'dict' object has no attribute 'id'",
"errorType": "AttributeError",
"stackTrace": [
" File "/var/task/lambda_function.py", line 13, in lambda_handler\n "id" : event.id\n"
]
}

[import json
import boto3
from boto3.dynamodb.conditions import Key

def lambda_handler(event, context):
client = boto3.resource('dynamodb')
table = client.Table('voters')

#1. Example - Get Item By Id

response = table.get_item(
	Key={
		"id" : event["id"],
	}
)

print(response['Item'])](url)

I'm getting error for this

Response:
{
"errorMessage": "An error occurred (ValidationException) when calling the GetItem operation: The provided key element does not match the schema",
"errorType": "ClientError",
"stackTrace": [
" File "/var/task/lambda_function.py", line 11, in lambda_handler\n response = table.get_item(\n",
" File "/var/runtime/boto3/resources/factory.py", line 520, in do_action\n response = action(self, *args, **kwargs)\n",
" File "/var/runtime/boto3/resources/action.py", line 83, in call\n response = getattr(parent.meta.client, operation_name)(**params)\n",
" File "/var/runtime/botocore/client.py", line 272, in _api_call\n return self._make_api_call(operation_name, kwargs)\n",
" File "/var/runtime/botocore/client.py", line 576, in _make_api_call\n raise error_class(parsed_response, operation_name)\n"
]
}

I have the table created with name 'voters' , partition key 'id' , I'm giving the key vales in the test configuration, but I'm getting this error.

I tried with returning the vale as well. I get the same error with this,

return(response['Item'])

Hi , did u resolve this ?

i have the same issue

also me :(

I was getting the same error as above. Found out since I was using index on my table, I had to specify...

response = table.query(
IndexName='clientId-meetingDate-index',
KeyConditionExpression=Key('clientId').eq('abc') & Key('meetingDate').gte('2022-05-05')
)

Of course change to your index, and attribute values, but after adding IndexName, all worked well.