How to add a custom field to the Payload generated by AddMutationConventions()?

Question

I am using AddMutationConventions() to save me from writing boilerplate code. However I want to add a field query: Query to each Payload. Is that possible in combination with AddMutationConventions() or do I have to write my own Payload by hand in that case?

Answer 1

As mentioned in my comment, you can automatically add the query field to all mutation payloads with this configuration option:

services
    .AddGraphQLServer()
    .AddQueryFieldToMutationPayloads();

Reference