Solve - Error parsing Parameter expected = Received EOF

Error parsing Parameter expected = Received EOF for input #

The "Error parsing Parameter expected = Received EOF for input" error occurs when an local file is passed as a parameter to an AWS CLI command, without setting the file:// prefix.

To solve the "Error parsing Parameter expected = Received EOF for input" error prefix the parameter that takes the local file with file://:

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aws dynamodb put-item --table-name TestTable --item file://item.json

In the example above, the shell is opened in the directory where the item.json file is located. If your terminal is opened in a different directory you can pass a local or absolute path leading to the file.

For example on linux and macOS you can use relative and absolute paths as follows:

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# relative path, same directory
aws dynamodb put-item --table-name TestTable --item file://item.json

# relative path, navigate to directory
aws dynamodb put-item --table-name TestTable --item file://./item.json

# absolute path
aws dynamodb put-item --table-name TestTable --item file:///home/john/item.json

Note that for absolute paths on linux and macOS we have 3 / (forward slash) symbols, the first 2 being a part of the prefix and the third a part of the absolute path.

On windows you can specify a file:// prefix as follows:

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aws dynamodb put-item --table-name TestTable --item file://C:\my-folder\item.json

In some very rare cases you might have to prefix the file parameter with fileb://, instead of file://. The fileb:// prefix reads your file as binary.

Further Reading #

• AWS CDK Tutorial for Beginners - Step-by-Step Guide
• How does AWS CDK work
• What is a Token in AWS CDK
• CDK Constructs - Complete Guide
• What is an identifier (id) in AWS CDK
• How to use Context in AWS CDK
• How to use Parameters in AWS CDK