ExecuteAsync FormattableString causing an unexpected answer

[mordebip]

Hello, i have been trying to make a generic get method for an easier generic implementation (with dynamic filters)

i am basically trying to build a query following this model

FormattableString limits = $"";
  if (pagingAndFilter.paging != null && pagingAndFilter.paging.numberOfElements != 0) 
    limits = $"limit {pagingAndFilter.paging.startPoint}, {pagingAndFilter.paging.numberOfElements}";

FormattableString filters = $"";
  if (pagingAndFilter.filters != null && pagingAndFilter.filters != "")
    filters = $"FILTER {pagingAndFilter.filters}";
    
FormattableString query = $" FOR c IN {collectionName} {filters} {limits} RETURN c";

For the situation where i will send the following arguments

{
  "paging": {
    "startPoint": 0,
    "numberOfElements": 10
  },
  "filters": "c.name == 'filteringName'"
}

The fiilters aren't being applied even if the value of query is "FOR c IN Product filter c.name == 'filteringName' limit 0, 10 RETURN c" which is a correctly formatted query

I was also thinking about sending the Filtering and Limit part as a static string, but it raised a lot of other issues, having a method to execute AQL from a simple and plain string could solve a lot of issues and offer a last ressort alternative

Edit : When trying to flatten the Filter part (@P2) with Invariant i get the following error

AQL: syntax error, unexpected bind parameter near '@P2 limit @P3, @P4 RETURN c' at position 1:14 (while parsing)

[andyzukunft]

Can you provide a whole method which creates your query, the query data and how you execute it afterwards including the database query execution?

[bbm-design]

Here is an example of the query

public async Task<IEnumerable<T>> GetListFilteredObjects<T>(string collectionName, PagingAndFilter pagingAndFilter)
        {
            try
            {
                pagingAndFilter.paging = BBMArangoHelper.VerifyPaging(pagingAndFilter.paging);
                FormattableString limits = $"limit {pagingAndFilter.paging.startPoint}, {pagingAndFilter.paging.numberOfElements}";

                pagingAndFilter.filters = BBMArangoHelper.VerifyFilter(pagingAndFilter.filters);
                FormattableString filters = $"{pagingAndFilter.filters}";

                pagingAndFilter.sort = BBMArangoHelper.VerifySort(pagingAndFilter.sort);
                FormattableString sorting = $"{pagingAndFilter.sort}";

                string strqry = "FOR c IN " + collectionName + " " + filters + " " + limits + " " + sorting + " RETURN c " ;
                FormattableString fstr = FormattableStringFactory.Create(strqry);

                return await _context.Query.ExecuteAsync<T>(StaticDBIdentifiers.DBName, fstr);
            }
            catch (Exception ex)
            {
                throw new ArgumentException(String.Format(ex.Message));
            }
        }

and as you can see, i had to convert from FormattableString to string then convert back to Formattable string to make it work as i'm receiving a generic filter and sort strings