Put Items using Json File in AWS DynamoDB using AWS CLI - json

Question

While putting below JSON in dynamo DB using AWS CLI with below command:
aws dynamodb put-item --table-name ScreenList --item file://tableName.json
I am getting Parameter validation failed Exception.I have gone rigorously through AWS docs but failed to find example to insert a complicated json.Every small help is welcome.
The updated Json :
{
"itemName": {
"S": "SCREEN_LIST"
},
"productName": {
"S": "P2P_MOBITEL"
},
"screenList": {
"L": [
{
"menu": {
"L": [
{
"M": {
"menuId": {
"N": "1"
},
"menuText": {
"S": "ENG_HEADING"
},
"menuType": {
"S": "Dynamic"
}
}
}
]
},
"M": {
"screenFooter": {
"S": "F_LANGUAGE_CHANGE"
},
"screenHeader": {
"S": "H_LANGUAGE_CHANGE"
},
"screenId": {
"S": "LANGUAGE_CHANGE"
},
"screenType": {
"S": ""
}
}
}
]
}
}

Answer 1

It seems that you are defining complex types incorrectly. According to AWS documentation you should define a list like this:
"L": ["Cookies", "Coffee", 3.14159]
and a map should be defined like this:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
which means that a menu map should be defined like this:
"menu": {
"L": [
{
"M": {
"menuId": {"N" :"1"},
"menuText": {"S" :"PACKS_SCREEN"},
"menuType": {"S" :"Dynamic"}
}
}
]
}
Notice the "M" and "L" attributes.
You should change the rest of your JSON in a similar fashion.
You can find full JSON definition here in the Options section.
UPDATE
Now your list definition is incorrect. You have:
"screenList":{
"L":[
{
"menu":{ ... },
"M":{ ... }
}
]
}
While it should be:
"screenList":{
"L":[
{
"M":{ ... }
},
{
"M":{ ... }
},
]
}