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ForAllValues:BoolIfExists

Warning:

ForAllValues: BoolIfExists is actively confusing. Any operator starting with ForAllValues will ignore IfExists. IfExists is not evaluated against the entire array, it is only evaluated against a single value at a time, inside the ForAllValues loop.

This is the kind of thing Jacob would do. Use ForAllValues: Bool instead so your coworkers don't hate you.

ForAllValues: BoolIfExists

ForAllValues: BoolIfExists compares a list of booleans in a request to a boolean in your policy.

To match a request, the context key can be absent, but if it is present, all of the booleans in the request must match the boolean in your policy.

You can use policy variables in the value of this operator.

ForAllValues: BoolIfExists in an Allow Statement

Given the Policy Condition: 
"ForAllValues:BoolIfExists": {
  "apigateway:Resource/ApiKeyRequired": "true"
}
When the Request Context has:
apigateway:Resource/ApiKeyRequired: null
Then the result is:
Allowed Allowed Assuming no explicit Deny elsewhere
Given the Policy Condition: 
"ForAllValues:BoolIfExists": {
  "apigateway:Resource/ApiKeyRequired": "true"
}
When the Request Context has:
apigateway:Resource/ApiKeyRequired:
 - false
 - false
Then the result is:
Not Allowed Not Allowed Statement does not apply
Given the Policy Condition: 
"ForAllValues:BoolIfExists": {
  "apigateway:Resource/ApiKeyRequired": "true"
}
When the Request Context has:
apigateway:Resource/ApiKeyRequired:
 - true
 - false
Then the result is:
Not Allowed Not Allowed Statement does not apply
Given the Policy Condition: 
"ForAllValues:BoolIfExists": {
  "apigateway:Resource/ApiKeyRequired": "true"
}
When the Request Context has:
apigateway:Resource/ApiKeyRequired:
 - true
Then the result is:
Allowed Allowed Assuming no explicit Deny elsewhere
Given the Policy Condition: 
"ForAllValues:BoolIfExists": {
  "apigateway:Resource/ApiKeyRequired": "true"
}
When the Request Context has:
apigateway:Resource/ApiKeyRequired:
 - true
 - true
Then the result is:
Allowed Allowed Assuming no explicit Deny elsewhere
Given the Policy Condition: 
"ForAllValues:BoolIfExists": {
  "apigateway:Resource/ApiKeyRequired": "true"
}
When the Request Context has:
apigateway:Resource/ApiKeyRequired:
 - true
 - true
 - false
Then the result is:
Not Allowed Not Allowed Statement does not apply

ForAllValues: BoolIfExists in a Deny Statement

Given the Policy Condition: 
"ForAllValues:BoolIfExists": {
  "apigateway:Resource/ApiKeyRequired": "true"
}
When the Request Context has:
apigateway:Resource/ApiKeyRequired: null
Then the result is:
Denied Denied
Given the Policy Condition: 
"ForAllValues:BoolIfExists": {
  "apigateway:Resource/ApiKeyRequired": "true"
}
When the Request Context has:
apigateway:Resource/ApiKeyRequired:
 - false
 - false
Then the result is:
Not Denied Not Denied May be allowed by another statement
Given the Policy Condition: 
"ForAllValues:BoolIfExists": {
  "apigateway:Resource/ApiKeyRequired": "true"
}
When the Request Context has:
apigateway:Resource/ApiKeyRequired:
 - true
 - false
Then the result is:
Not Denied Not Denied May be allowed by another statement
Given the Policy Condition: 
"ForAllValues:BoolIfExists": {
  "apigateway:Resource/ApiKeyRequired": "true"
}
When the Request Context has:
apigateway:Resource/ApiKeyRequired:
 - true
Then the result is:
Denied Denied
Given the Policy Condition: 
"ForAllValues:BoolIfExists": {
  "apigateway:Resource/ApiKeyRequired": "true"
}
When the Request Context has:
apigateway:Resource/ApiKeyRequired:
 - true
 - true
Then the result is:
Denied Denied
Given the Policy Condition: 
"ForAllValues:BoolIfExists": {
  "apigateway:Resource/ApiKeyRequired": "true"
}
When the Request Context has:
apigateway:Resource/ApiKeyRequired:
 - true
 - true
 - false
Then the result is:
Not Denied Not Denied May be allowed by another statement