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package handler
import "context"
type key string
const (
initpayload key = "ws_initpayload_context"
)
// InitPayload is a structure that is parsed from the websocket init message payload. TO use
// request headers for non-websocket, instead wrap the graphql handler in a middleware.
type InitPayload map[string]interface{}
// GetString safely gets a string value from the payload. It returns an empty string if the
// payload is nil or the value isn't set.
func (payload InitPayload) GetString(key string) string {
if payload == nil {
return ""
}
if value, ok := payload[key]; ok {
res, _ := value.(string)
return res
}
return ""
}
// Authorization is a short hand for getting the Authorization header from the
// payload.
func (payload InitPayload) Authorization() string {
if value := payload.GetString("Authorization"); value != "" {
return value
}
if value := payload.GetString("authorization"); value != "" {
return value
}
return ""
}
func withInitPayload(ctx context.Context, payload InitPayload) context.Context {
return context.WithValue(ctx, initpayload, payload)
}
// GetInitPayload gets a map of the data sent with the connection_init message, which is used by
// graphql clients as a stand-in for HTTP headers.
func GetInitPayload(ctx context.Context) InitPayload {
payload, ok := ctx.Value(initpayload).(InitPayload)
if !ok {
return nil
}
return payload
}
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