Passing in an Apex method parameter from Promise correctly?

I keep getting an error from the response of my promise, if I give it a parameter. I can't tell if I am suppose to pass in "columndefinitions" parameter to the apex method or not. I have included picture to help. PS: If I leave the parameter out, it returns an empty array but no errors.

Thoughts: Am I passing in the paramater incorrectly? Did I format my column defenitions wrong? Is it a syntax issue?

JS FILE

//before render, call an apex method query...
connectedCallback() {
   getValidFields(this.getColumnDefinitions)
             .then((response) => {
                console.log('getvalidfields', response)
               }).catch((error) => {
                console.error(error);
});

getColumnDefinitions() {
        return [
            {
                object: "Contact", apiName: "Name", label: 'Name', fieldName: 'contactURL', type: 'url', iconName: 'standard:contact', sortable: 'true',
                filterable: true, typeAttributes: { label: { fieldName: 'contactName' }, target: '_self', tooltip: 'Click to view Contact details' }
            },
            { object: "Contact", apiName: "Phone", label: 'Phone', fieldName: 'contactPhone', type: 'phone', sortable: false, filterable: true },
            { object: "Contact", apiName: "Email", label: 'Email', fieldName: 'contactEmail', type: 'email', sortable: false, filterable: true },
            { object: "Contact", apiName: "MailingAddress", label: "Address", fieldName: 'contactAddress', type: 'text', filterable: false },
            { object: "Contact", apiName: "Group_Rank__c", label: 'Group Rank', fieldName: 'contactGroupRank', type: 'text', sortable: true, filterable: true },
            { object: "Contact", apiName: "Role_Function__c", label: 'Role Function', fieldName: 'contactRoleFunction', type: 'text', sortable: true, filterable: false },
            { object: "ContactTerritoryRelationship__c", apiName: "TerritoryManagerRole__c", label: 'Territory Manager Role', fieldName: 'contactTerritoryRole', type: 'text', sortable: true, filterable: false },
            {
                object: "DistributionTerritory__c", apiName: "Name", label: 'Distribution Territory', fieldName: 'contactTerritoryURL', type: 'url', sortable: true, filterable: true, iconName: 'custom:custom78',
                typeAttributes: { label: { fieldName: 'contactTerritoryName' }, target: '_self', tooltip: 'Click to view Distribution Territory details' }
            },
            { object: "ContactTerritoryRelationship__c", apiName: "DistributionTerritory__c", type: "action", filterable: false, typeAttributes: { rowActions: this.rowActions } }
        ];
    }

CONTROLLER.CLS

 @AuraEnabled
    public static List<Map<String, Object>> getValidFields(List<Map<String, Object>> columnDefinitions) {
        for (Integer i = 0; i < columnDefinitions.size(); i++) {
            Map<String, Object> column = columnDefinitions.get(i);
            if (column.containsKey('object') && !userHasAccess((String) column.get('object'), (String) column.get('apiName'))) {
                columnDefinitions.remove(i);
            }
        }     
        return columnDefinitions;
    }

Solution

You should pass parameters as object if you call apex action imperatively from LWC. Object properties should be name like your Apex method parameters.

In your case it should be:

getValidFields({ columnDefinitions: this.getColumnDefinitions()} ).then(...)

Please refer the following link for more details: https://developer.salesforce.com/docs/platform/lwc/guide/apex-call-imperative.html#call-an-apex-method-with-parameters