Quick start

Authenticate, write, and query with the InfluxDB OSS v2 API:

1. Create an API token with write and read permissions for a bucket. For new installations, set up InfluxDB and create the initial admin token during the onboarding process.

2. Check the status of the InfluxDB server.

   curl "http://localhost:8086/health"

3. Write data to a bucket using the /api/v2/write endpoint and line protocol.

   curl --request POST \
     "http://localhost:8086/api/v2/write?org=ORG&bucket=BUCKET&precision=s" \
     --header "Authorization: Token YOUR_API_TOKEN" \
     --header "Content-Type: text/plain; charset=utf-8" \
     --data-raw "home,room=Kitchen temp=72.0 1640995200
   home,room=Living\ Room temp=71.5 1640995200"

   If all data is written, the response is 204 No Content.

4. Query data using the Flux /api/v2/query endpoint.

   curl --request POST \
     "http://localhost:8086/api/v2/query?org=ORG" \
     --header "Authorization: Token YOUR_API_TOKEN" \
     --header "Content-Type: application/vnd.flux" \
     --data 'from(bucket: "BUCKET") |> range(start: -1h) |> filter(fn: (r) => r._measurement == "home")'

   Alternatively, query with InfluxQL using the v1-compatible /query endpoint. Target a v1 DBRP mapping (database.retention_policy) that points to your bucket:

   curl --get "http://localhost:8086/query" \
     --header "Authorization: Token YOUR_API_TOKEN" \
     --data-urlencode "db=DATABASE" \
     --data-urlencode "q=SELECT * FROM home WHERE time > now() - 1h"

For more information, see Get started with InfluxDB OSS v2.