Use tools like the `influxctl` CLI, Telegraf, and InfluxDB client libraries to
to write time series data to {{< product-name >}}. [Line protocol](#line-protocol)
is the text-based format used to write data to InfluxDB. There are tools
available to covert other formats (for example—[CSV](/influxdb3/version/write-data/use-telegraf/csv/))
to line protocol.

- [Line protocol](#line-protocol)
  - [Line protocol elements](#line-protocol-elements)
- [Write data to InfluxDB](#write-data-to-influxdb)
  {{< children type="anchored-list" >}}

{{% show-in "core,enterprise" %}}
> [!Note]
> 
> #### Choose the write endpoint for your workload
> 
> When creating new write workloads, use the HTTP API
> [`/api/v3/write_lp` endpoint with client libraries](/influxdb3/version/write-data/api-client-libraries/).
>
> When bringing existing v1 write workloads, use the {{% product-name %}}
> HTTP API [`/write` endpoint](/influxdb3/core/api/v3/#operation/PostV1Write).
>
> When bringing existing v2 write workloads, use the {{% product-name %}}
> HTTP API [`/api/v2/write` endpoint]([/influxdb3/version/api/v3/#operation/PostV1Write](/influxdb3/version/api/v3/#operation/PostV2Write)).
{{% /show-in %}}

{{% hide-in "core,enterprise" %}}
> [!Note]
> 
> #### Choose the write endpoint for your workload
> 
> When bringing existing v1 write workloads, use the {{% product-name %}}
> HTTP API [`/write` endpoint](/influxdb3/version/guides/api-compatibility/v1/).
> When creating new write workloads, use the HTTP API
> [`/api/v2/write` endpoint](/influxdb3/version/guides/api-compatibility/v2/).
{{% /hide-in %}}

## Line protocol

All data written to InfluxDB is written using
[line protocol](/influxdb3/version/reference/line-protocol/), a text-based format
that lets you provide the necessary information to write a data point to InfluxDB.

### Line protocol elements

In InfluxDB, a point contains a table name, one or more fields, a timestamp,
and optional tags that provide metadata about the observation.

Each line of line protocol contains the following elements:

{{< req type="key" >}}

- {{< req "\*" >}} **table**: A string that identifies the
  table to store the data in.
- **tag set**: Comma-delimited list of key value pairs, each representing a tag.
  Tag keys and values are unquoted strings. _Spaces, commas, and equal characters
  must be escaped._
- {{< req "\*" >}} **field set**: Comma-delimited list of key value pairs, each
  representing a field.
  Field keys are unquoted strings. _Spaces and commas must be escaped._
  Field values can be [strings](/influxdb3/version/reference/line-protocol/#string)
  (quoted),
  [floats](/influxdb3/version/reference/line-protocol/#float),
  [integers](/influxdb3/version/reference/line-protocol/#integer),
  [unsigned integers](/influxdb3/version/reference/line-protocol/#uinteger),
  or [booleans](/influxdb3/version/reference/line-protocol/#boolean).
- **timestamp**: [Unix timestamp](/influxdb3/version/reference/line-protocol/#unix-timestamp)
  associated with the data. InfluxDB supports up to nanosecond precision.
  _If the precision of the timestamp is not in nanoseconds, you must specify the
  precision when writing the data to InfluxDB._

#### Line protocol element parsing

- **table**: Everything before the _first unescaped comma before the first
  whitespace_.
- **tag set**: Key-value pairs between the _first unescaped comma_ and the _first
  unescaped whitespace_.
- **field set**: Key-value pairs between the _first and second unescaped whitespaces_.
- **timestamp**: Integer value after the _second unescaped whitespace_.
- Lines are separated by the newline character (`\n`).
  Line protocol is whitespace sensitive.

---

{{< influxdb/line-protocol version="v3" >}}

---

_For schema design recommendations, see
[InfluxDB schema design](/influxdb3/version/write-data/best-practices/schema-design/)._

## Write data to InfluxDB

{{< children >}}