Common Serverless Framework Cloudformation Template Errors
A list of solutions to common Serverless Framework errors with AWS.
Template error: instance of Fn::GetAtt references undefined resource GraphQlDsTaskTable
This can happen when using serverless-appsync-plugin. The error is thrown when a dataSource is missing:
custom:
appSync:
name: example.com
<snip>
dataSources:
- type: AMAZON_DYNAMODB
name: TaskTable
description: "TaskTable table"
config:
tableName: "TaskTable"
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An error occurred: TaskTable - Property AttributeDefinitions is inconsistent with the KeySchema of the table and the secondary indexes.
When defining a global secondary index in DynamoDB, you need to make sure that attribute is also listed under attribute definitions:
BookTable:
Type: "AWS::DynamoDB::Table"
Properties:
KeySchema:
- AttributeName: id
KeyType: HASH
AttributeDefinitions:
- AttributeName: id
AttributeType: S
- AttributeName: username
AttributeType: S
ProvisionedThroughput:
ReadCapacityUnits: 1
WriteCapacityUnits: 1
TableName: "TaskTable"
GlobalSecondaryIndexes:
- IndexName: username-index
KeySchema:
- AttributeName: username
KeyType: HASH
Projection:
ProjectionType: ALL
ProvisionedThroughput:
ReadCapacityUnits: 1
WriteCapacityUnits: 1
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Copyright © 2018 Daniel and Audrey Roy Greenfeld.
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