---
title: Logfmt input data format
description: Use the logfmt input data format to parse logfmt data into Telegraf metrics.
url: https://docs.influxdata.com/telegraf/v1/data_formats/input/logfmt/
estimated_tokens: 636
product: Telegraf
version: v1
---

# Logfmt input data format

Use the `logfmt` data format to parse [logfmt](https://brandur.org/logfmt) data into Telegraf metrics.

## Configuration

```toml
[[inputs.file]]
  files = ["example"]

  ## Data format to consume.
  ## Each data format has its own unique set of configuration options, read
  ## more about them here:
  ##   https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
  data_format = "logfmt"

  ## Array of key names which should be collected as tags. Globs accepted.
  logfmt_tag_keys = ["method","host"]
```

## Metrics

Each key/value pair in the line is added to a new metric as a field. The type of the field is automatically determined based on the contents of the value.

## Examples

```text
- method=GET host=example.org ts=2018-07-24T19:43:40.275Z connect=4ms service=8ms status=200 bytes=1653
+ logfmt,host=example.org,method=GET ts="2018-07-24T19:43:40.275Z",connect="4ms",service="8ms",status=200i,bytes=1653i
```