Dapper.Contrib 1.50.0 -> 1.50.4 broke InsertAsync(IEnumerable)

[snebjorn]

I can't quite pinpoint what is going on. But when I update Dapper.Contrib from 1.50.0 to 1.50.4 I get this exception

System.InvalidOperationException : An enumerable sequence of parameters (arrays, lists, etc) is not allowed in this context
at Dapper.SqlMapper.GetCacheInfo(Identity identity, Object exampleParameters, Boolean addToCache) in ...\dapper\Dapper\SqlMapper.cs:line 1686

When calling await _connection.InsertAsync(listOfEntities);.

Anyone else getting this?

My Dapper version is 1.50.4. It works with this version combo:

• Dapper v1.50.4
• Dapper.Contrib v1.50.0

[d-franklin]

It's this line that's causing the issue.

https://github.com/StackExchange/Dapper/blob/a213b2aeee66ac0bff327ff19e70516fb629abe3/Dapper.Contrib/SqlMapperExtensions.Async.cs#L133

[bdrupieski]

What are you trying to insert? What does that type look like?

[snebjorn]

This doesn't throw

var list = new List<object>();
await _connection.InsertAsync(list);

This throws

var list = new List<object>().AsEnumerable();
await _connection.InsertAsync(list); // throws

Hmm perhaps I should mention that I made my own adapter around Dapper.Contrib. But it only forwards the call.

// _connection here is of type IDbConnection where as in the above is using my adapter interface.
public Task<int> InsertAsync<T>(T entityToInsert) where T : class => _connection.InsertAsync(entityToInsert);

public Task<int> InsertAsync<T>(IEnumerable<T> entitiesToInsert) where T : class => _connection.InsertAsync(entitiesToInsert);

It shouldn't interferer with Dapper.