docs-v2/content/shared/influxdb3-query-guides/execute-queries/influxdb-v1-api.md

Use the InfluxDB v1 HTTP query API to query data in {{< product-name >}} with InfluxQL.

The examples below use cURL to send HTTP requests to the InfluxDB v1 HTTP API, but you can use any HTTP client.

[!Warning]

InfluxQL feature support

InfluxQL is being rearchitected to work with the InfluxDB 3 storage engine. This process is ongoing and some InfluxQL features are still being implemented. For information about the current implementation status of InfluxQL features, see InfluxQL feature support.

Use the v1 /query endpoint and the GET request method to query data with InfluxQL:

{{< api-endpoint endpoint="http://{{< influxdb/host >}}/query" method="get" api-ref="/influxdb3/version/api/#tag/Query" >}}

Provide the following with your request:

• Headers:
  • Authorization: Bearer AUTH_TOKEN
• Query parameters:
  • db: the database to query
  • rp: Optional: the retention policy to query
  • q: URL-encoded InfluxQL query

{{% code-placeholders "(DATABASE|AUTH)_(NAME|TOKEN)" %}}

curl --get https://{{< influxdb/host >}}/query \
  --header "Authorization: Bearer AUTH_TOKEN" \
  --data-urlencode "db=DATABASE_NAME" \
  --data-urlencode "q=SELECT * FROM home"

{{% /code-placeholders %}}

Replace the following configuration values:

• {{% code-placeholder-key %}}DATABASE_NAME{{% /code-placeholder-key %}}: the name of the database to query
• {{% code-placeholder-key %}}AUTH_TOKEN{{% /code-placeholder-key %}}: your {{< product-name >}} {{% token-link %}}{{% show-in "enterprise" %}} with read access to the database{{% /show-in %}}

Return results as JSON or CSV

By default, the /query endpoint returns results in JSON, but it can also return results in CSV. To return results as CSV, include the Accept header with the application/csv or text/csv MIME type:

{{% code-placeholders "(DATABASE|AUTH)_(NAME|TOKEN)" %}}

curl --get https://{{< influxdb/host >}}/query \
  --header "Authorization: Bearer AUTH_TOKEN" \
  --header "Accept: application/csv" \
  --data-urlencode "db=DATABASE_NAME" \
  --data-urlencode "q=SELECT * FROM home"

{{% /code-placeholders %}}