Json code to allow for null values

Getting Started
1

Hello I am new to JSON and I have this code that fails if no attachment is uploaded. I need it to cater for no attachment or null values. Appreciate any help on this, thanks.

{
“type”: “array”,
“items”: {
“type”: “object”,
“properties”: {
“name”: {
“type”: “string”
},
“link”: {
“type”: “string”
},
“id”: {
“type”: “string”
},
“type”: {},
“size”: {
“type”: “integer”
},
“referenceId”: {
“type”: “string”
},
“driveId”: {
“type”: “string”
},
“status”: {
“type”: “integer”
},
“uploadSessionUrl”: {}
},
“required”: [
“name”,
“link”,
“id”,
“type”,
“size”,
“referenceId”,
“driveId”,
“status”,
“uploadSessionUrl”
]
}
}

2

I have updated to cater for null values but still getting the error -
Action ‘Parse_JSON’ failed: Unable to process template language expressions in action ‘Parse_JSON’ inputs at line ‘0’ and column ‘0’: ‘Required property ‘content’ expects a value but got null. Path ‘’.’.

{
“type”: “ParseJson”,
“inputs”: {
“content”: “@body(‘Get_response_details’)?[‘rfb9a982638a64c0db17bc88ea79fe8b3’]”,
“schema”: {
“type”: “array”,
“items”: {
“type”: “object”,
“properties”: {
“name”: {
“type”: [
“string”,
“null”
]
},
“link”: {
“type”: [
“string”,
“null”
]
},
“id”: {
“type”: [
“string”,
“null”
]
},
“type”: {
“type”: [
“string”,
“null”
]
},
“size”: {
“type”: [
“integer”,
“null”
]
},
“referenceId”: {
“type”: [
“string”,
“null”
]
},
“driveId”: {
“type”: [
“string”,
“null”
]
},
“status”: {
“type”: [
“integer”,
“null”
]
},
“uploadSessionUrl”: {
“type”: [
“string”,
“null”
]
}
},
“required”: [
“name”,
“link”,
“id”,
“type”,
“size”,
“referenceId”,
“driveId”,
“status”,
“uploadSessionUrl”
]
}
}
},
“runAfter”: {
“Get_response_details”: [
“Succeeded”
]
},
“metadata”: {
“operationMetadataId”: “2d2a02dd-a342-4ea6-ba7f-2e4ca80343f1”
}
}

3

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What is the purpose of this JSON? What are you trying to do with it? JSON is not code, it is simply an object notation to represent things.