# addFlow Source: [https://docs.qualcomm.com/doc/80-PK177-134/topic/add_flow.html](https://docs.qualcomm.com/doc/80-PK177-134/topic/add_flow.html) Adds a new filter to the system and applies the provided uplink/downlink levels, PDCP timer, and OOD value. addFlow()Copy to clipboard ## Parameters | Parameters | API type | Data type | Description | | --- | --- | --- | --- | | direction | Java | directionEnum | The [direction](https://docs.qualcomm.com/doc/80-PK177-134/topic/direction.html)
that the filter should be applied on (UPLINK, DOWNLINK, or
BOTH). | | direction | Native | dpp\_directionEnum | The [direction](https://docs.qualcomm.com/doc/80-PK177-134/topic/direction.html)
that the filter should be applied on (UPLINK, DOWNLINK, or
BOTH). | | srcIp | Java | String | Source IP address



(This is always the address of the mobile device, even when the
filter is for DOWNLINK). | | srcIp | Native | const char \* | Source IP address



(This is always the address of the mobile device, even when the
filter is for DOWNLINK). | | srcPort | Java | int | Source port



(This is always the port of the mobile device, even when the
filter is for DOWNLINK). | | srcPort | Native | uint16\_t | Source port



(This is always the port of the mobile device, even when the
filter is for DOWNLINK). | | dstIp | Java | String | Destination IP address



(This is always the address of the external target, even when the
filter is for DOWNLINK). | | dstIp | Native | const char \* | Destination IP address



(This is always the address of the external target, even when the
filter is for DOWNLINK). | | dstPort | Java | int | Destination port



(This is always the port of the external target, even when the
filter is for DOWNLINK). | | dstPort | Native | uint16\_t | Destination port



(This is always the port of the external target, even when the
filter is for DOWNLINK). | | protocol | Java | protocolEnum | [Protocol](https://docs.qualcomm.com/doc/80-PK177-134/topic/dpp_flow_protocol.html). | | protocol | Native | dpp\_protocolEnum | [Protocol](https://docs.qualcomm.com/doc/80-PK177-134/topic/dpp_flow_protocol.html). | | appType | Java | appTypeEnum | Classification of the app requesting the addition of
this flow ([appType](https://docs.qualcomm.com/doc/80-PK177-134/topic/app_type.html)). | | appType | Native | dpp\_appTypeEnum | Classification of the app requesting the addition of
this flow ([appType](https://docs.qualcomm.com/doc/80-PK177-134/topic/app_type.html)). | | inactivityTimer | Java | long | Time that the flow can be inactive before the system
deletes it. | | inactivityTimer | Native | uint32\_t | Time that the flow can be inactive before the system
deletes it. | | dscp | Java | int | DSCP value (0-255). | | dscp | Native | uint8\_t | DSCP value (0-255). | | cb | Java | IflowStatus | Callback providing the flow ID ([iFlowStatus](https://docs.qualcomm.com/doc/80-PK177-134/topic/i_flow_status.html)). | | cb | Native | dpp\_flowStatus | Callback providing the flow ID ([iFlowStatus](https://docs.qualcomm.com/doc/80-PK177-134/topic/i_flow_status.html)). | | ret | Native | int8\_t& | On success this is the actual return value from the API.



| | | | | | ## Returns | Return | API type | Data type | Description | | --- | --- | --- | --- | | response | Java | int | | | response | Native | qesdk\_transaction\_status | See [QESDK transaction status for Native APIs](https://docs.qualcomm.com/doc/80-PK177-134/topic/native_qesdk_class.html) for usage details. Use qesdk\_transaction\_status to confirm API call invocation. If successful, use the `ret` value for the actual API return value object. | | | | | | **Parent Topic:** [DPP subsystem APIs](https://docs.qualcomm.com/doc/80-PK177-134/topic/functions.html) Last Published: Nov 14, 2024 [Previous Topic registerFlowStatusUpdates](https://docs.qualcomm.com/bundle/publicresource/80-PK177-134/topics/register_flow_status_updates.md) [Next Topic getFlows](https://docs.qualcomm.com/bundle/publicresource/80-PK177-134/topics/get_flow.md)