Configure a ChirpStack application server integration to forward device uplinks to an external HTTP endpoint and provision devices via the gRPC/REST API

Steps

1. Deploy ChirpStack (via Docker Compose or native packages) and log in to the web UI; create a Tenant, Application, and Device Profile matching your LoRaWAN device class and regional parameters
2. Add an HTTP Integration to the Application: navigate to Application > Integrations > HTTP, enter the uplink and event endpoint URLs, and optionally configure basic auth or a custom header for security
3. Provision a device via the REST API: POST /api/devices with a JSON body specifying devEui, name, applicationId, deviceProfileId, and skipFcntCheck; then POST /api/devices/<devEui>/keys with the appKey for OTAA
4. Verify the integration by powering on a device and checking that the HTTP endpoint receives uplink payloads; the payload includes decoded frmPayload, metadata (RSSI, SNR, frequency), and device EUI
5. Use the ChirpStack gRPC API (or the REST gateway at /api) for bulk device management; authenticate with an API key generated in the UI under API Keys
6. Set up a downlink by POSTing to /api/devices/<devEui>/queue with the desired payload, fPort, and confirmed flag; ChirpStack will send the downlink on the next available receive window