DyanmoDB (UpdateTable) - SerializationException: Start of structure or map found where not expected #7102
Description
Checkboxes for prior research
- I've gone through Developer Guide and API reference
- I've checked AWS Forums and StackOverflow.
- I've searched for previous similar issues and didn't find any solution.
Describe the bug
SerializationException: Start of structure or map found where not expected error when trying to run UpdateTable in AWS SDK JS.
Regression Issue
- Select this option if this issue appears to be a regression.
SDK version number
@aws-sdk/[email protected]
Which JavaScript Runtime is this issue in?
Node.js
Details of the browser/Node.js/ReactNative version
v22.14.0
Reproduction Steps
const tableName = 'User-1748112703761';
const { DynamoDBClient, CreateTableCommand, CreateGlobalTableCommand, UpdateTableCommand } = require('@aws-sdk/client-dynamodb');
const client = new DynamoDBClient({ region: 'us-west-2' });
const createTableCommand = new CreateTableCommand({
TableName: tableName,
BillingMode: 'PAY_PER_REQUEST',
AttributeDefinitions: [ { AttributeName: 'id', AttributeType: 'S' } ],
KeySchema: [ { AttributeName: 'id', KeyType: 'HASH' } ],
StreamSpecification: { StreamEnabled: true, StreamViewType: 'NEW_AND_OLD_IMAGES' },
});
await client.send(createTableCommand);
await waitForTableActive(client, tableName);
const updateTableCommand = new UpdateTableCommand({
TableName: tableName,
ReplicaUpdates: {
Create: [ { RegionName: 'us-west-1' } ]
}
});
await client.send(updateTableCommand); // This seems to be the line that is failing. If I comment this out it works fine.
// Just a helper function to wait for the table to be active. Not critical to the problem.
async function waitForTableActive(client, tableName) {
const { DynamoDBClient, DescribeTableCommand } = require('@aws-sdk/client-dynamodb');
let tableStatus = 'CREATING';
while (tableStatus !== 'ACTIVE') {
await new Promise(resolve => setTimeout(resolve, 5000)); // Wait 5 seconds
const describeCommand = new DescribeTableCommand({ TableName: tableName });
const response = await client.send(describeCommand);
tableStatus = response.Table.TableStatus;
console.log(`Table status: ${tableStatus}`);
}
}
Observed Behavior
/Users/charliefish/tmp2/node_modules/@aws-sdk/smithy-client/dist-cjs/default-error-handler.js:8
const response = new exceptionCtor({
^
SerializationException: Start of structure or map found where not expected
at throwDefaultError (/Users/charliefish/tmp2/node_modules/@aws-sdk/smithy-client/dist-cjs/default-error-handler.js:8:22)
at /Users/charliefish/tmp2/node_modules/@aws-sdk/smithy-client/dist-cjs/default-error-handler.js:18:39
at de_UpdateTableCommandError (/Users/charliefish/tmp2/node_modules/@aws-sdk/client-dynamodb/dist-cjs/protocols/Aws_json1_0.js:2556:20)
at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
at async /Users/charliefish/tmp2/node_modules/@aws-sdk/middleware-serde/dist-cjs/deserializerMiddleware.js:7:24
at async /Users/charliefish/tmp2/node_modules/@aws-sdk/middleware-signing/dist-cjs/middleware.js:14:20
at async /Users/charliefish/tmp2/node_modules/@aws-sdk/middleware-retry/dist-cjs/retryMiddleware.js:27:46
at async /Users/charliefish/tmp2/node_modules/@aws-sdk/middleware-logger/dist-cjs/loggerMiddleware.js:7:26
at async /Users/charliefish/tmp2/index.js:56:2 {
'$fault': 'client',
'$metadata': {
httpStatusCode: 400,
requestId: 'T4LD9197GUUNAJQQ238H5KJK9NVV4KQNSO5AEMVJF66Q9ASUAAJG',
extendedRequestId: undefined,
cfId: undefined,
attempts: 1,
totalRetryDelay: 0
},
__type: 'com.amazon.coral.service#SerializationException'
Expected Behavior
It to complete without throwing an error
Possible Solution
No response
Additional Information/Context
aws-vault exec root -- aws dynamodb update-table --table-name User-1748112703761 --cli-input-json \
'{
"ReplicaUpdates":
[
{
"Create": {
"RegionName": "us-west-1"
}
}
]
}' \
--region=us-west-2
^ this code seems to have worked if I run this in terminal. It just fails when using AWS SDK JS.