Supporting sending extensions with gqlgen client

[schafle]

What happened?

I am using gqlgen client for my tests and wanted to write tests for APQ. But gqlgen client doesn't support sending extensions in the request

gqlgen/client/client.go

Lines 29 to 34 in 2f6919f

	Request struct {
	Query string `json:"query"`
	Variables map[string]interface{} `json:"variables,omitempty"`
	OperationName string `json:"operationName,omitempty"`
	HTTP *http.Request `json:"-"`
	}

What did you expect?

It should be possible to send extensions in the request with gqlgen client

Minimal graphql.schema and models to reproduce

NA

versions

• gqlgen version 0.12.2
• go version? NA
• dep or go modules? NA

[schafle]

Done with #1633. Closing the issue.