sending the messages by seqnum

src/client/api/rest/controller.go

@@ -329,11 +329,15 @@ func (cont *Controller) GetLogs(ctx *gin.Context) {
 }
 
 // AllMessages godoc
-// @Summary List all FIX application messages of the day
-// @Description Returns every FIX application message recorded today (no admin: heartbeats/logon/logout/etc.), sorted by CreatedAt ascending
+// @Summary List FIX application messages of the day after the caller's last-seen sequence
+// @Description Returns today's FIX application messages (no admin: heartbeats/logon/logout/etc.) with MsgSeqNum greater than the caller's last-seen sequence per direction. "In" is the last MsgSeqNum the caller received on the IN side; "Out" is the same for OUT. Pass 0 to receive everything on that side. Sorted by CreatedAt ascending.
 // @Tags fix
+// @Accept json
 // @Produce json
+// @Param body body AllMessagesRequest true "API key and last-seen MsgSeqNum per direction"
 // @Success 200 {array} domain.Message
+// @Failure 400 {object} HTTPError
+// @Failure 401 {object} HTTPError
 // @Router /qfixdpl/v1/messages [post]
 func (cont *Controller) AllMessages(ctx *gin.Context) {
 	setHeaders(ctx, cont.config)
@@ -349,7 +353,7 @@ func (cont *Controller) AllMessages(ctx *gin.Context) {
 		return
 	}
 
-	ctx.JSON(http.StatusOK, cont.tradeProvider.GetAllMessages())
+	ctx.JSON(http.StatusOK, cont.tradeProvider.GetAllMessages(req.In, req.Out))
 }
 
 // GetPendingQuoteRequests godoc

src/client/api/rest/model.go

@@ -24,4 +24,6 @@ type SendQuoteRequest struct {
 
 type AllMessagesRequest struct {
 	APIKey string
+	In     int
+	Out    int
 }

src/client/api/rest/server.go

@@ -22,7 +22,7 @@ type TradeProvider interface {
 	GetTrades() []domain.ListTrade
 	GetPendingQuoteRequests() []domain.ListTrade
 	SendQuote(quoteReqID string, price decimal.Decimal) error
-	GetAllMessages() []domain.Message
+	GetAllMessages(inSeq, outSeq int) []domain.Message
 }
 
 const RedisMaxIdle = 3000 // In ms