eUPF API Documentation

In addition to prometheus metrics the eUPF API provides a set of endpoints for monitoring the User Plane Function (UPF). It includes endpoints for listing UPF pipeline, QER map content, PFCP associations, displaying configuration, and displaying XDP statistics. This API is built with the Gin Web Framework and provides a Swagger API documentation for easy exploration and testing.

Endpoints

Method	URL	Description	Example
GET	/api/v1/upf_pipeline	Lists the UPF pipeline. Returns contents of upf pipeline (loaded ebpf programs)	/api/v1/upf_pipeline
GET	/api/v1/xdp_stats	Displays the XDP statistics. Returns an object of XdpStats	/api/v1/xdp_stats
GET	/api/v1/packet_stats	Displays the PACKET statistics. Returns an object of PacketStats	/api/v1/packet_stats

- QER map

Method	URL	Description	Example
GET	/api/v1/qer_map	Lists the QER map content. Returns a list of QerMapElement	/api/v1/qer_map
GET	/api/v1/qer_map/:id	Get QER map element by id. Returns an object of QerMapElement	/api/v1/qer_map/1
PUT	/api/v1/qer_map/:id	Set values for QER map element by id. Returns a list of QerMapElement	/api/v1/qer_map/1

[PUT] Example request body:

{
  "gate_status_ul": 0,
  "gate_status_dl": 0,
  "qfi": 0,
  "max_bitrate_ul": 200000000,
  "max_bitrate_dl": 100000000
}

- Config

Method	URL	Description	Example
GET	/api/v1/config	Displays the configuration. Returns an object of UpfConfig	/api/v1/config
POST	/api/v1/config	Set configuration values	/api/v1/config

[POST] Example request body:

{
  "interface_name": [
    "eth0",
    "eth1"
  ],
  "xdp_attach_mode": "generic",
  "api_address": "8080",
  "pfcp_address": "10.100.200.14:8805",
  "pfcp_node_id": "10.100.200.14",
  "metrics_address": ":9090",
  "n3_address": "10.100.200.14",
  "n9_address": "10.100.200.14",
  "qer_map_size": 1024,
  "far_map_size": 1024,
  "pdr_map_size": 1024,
  "resize_ebpf_maps": false,
  "heartbeat_retries": 3,
  "heartbeat_interval": 5,
  "heartbeat_timeout": 5,
  "logging_level": "info"
}

- Uplink PDR

Method	URL	Description	Example
GET	/api/v1/uplink_pdr_map/:id	Get Uplink PDR values by id. Returns an object of PdrElement	/api/v1/uplink_pdr_map/1
PUT	/api/v1/uplink_pdr_map/:id	Set Uplink PDR values by id. Returns a new object of PdrElement	/api/v1/uplink_pdr_map/1

[PUT] Example request body:

{
  "outer_header_removal": 0,
  "far_id": 0,
  "qer_id": 0
}

- FAR map

Method	URL	Description	Example
GET	/api/v1/far_map/:id	Get FAR map element by id. Returns an object of FarMapElement	/api/v1/far_map/1
PUT	/api/v1/far_map/:id	Set values for FAR map element by id. Returns a new object of FarMapElement	/api/v1/far_map/1

[PUT] Example request body:

{
  "action": 0,
  "outer_header_creation": 0,
  "teid": 0,
  "remote_ip": 0,
  "local_ip": 0,
  "transport_level_marking": 0
}

- PFCP associations

Method	URL	Description	Example
GET	/api/v1/pfcp_associations	Lists the PFCP associations. Returns an object of NodeAssociationMap	/api/v1/pfcp_associations
GET	/api/v1/pfcp_associations/full	Lists the full PFCP associations. Returns an object of NodeAssociationMap	/api/v1/pfcp_associations/full
GET	/api/v1/pfcp_sessions	Lists the PFCP sessions content. Returns a list of Session	/api/v1/pfcp_sessions

Swagger API Documentation

To explore and test the API, you can use the Swagger API documentation. To access the Swagger UI, navigate to the following endpoint in your browser:

• GET /swagger/index.html

API docs generation

(Reference documentation)[https://github.com/swaggo/gin-swagger]

go install github.com/swaggo/swag/cmd/swag@v1.8.12
cd {repo_root}/cmd/eupf
swag init --parseDependency