Send data via Axiom API

Learn how to send and load data into Axiom using the API.

This API allows you to send and load data into Axiom. You can use different methods to ingest logs depending on your requirements and log format.

Authorization and headers

The only expected header is Authorization: Bearer which is your to token to authenticate the request. For more information, see Tokens.

Using Axiom JS library to ingest data

Axiom maintains the axiom-js to provide official Javascript bindings for the Axiom API.

Install using npm install:

npm install @axiomhq/js

If you use the Axiom CLI, run eval $(axiom config export -f) to configure your environment variables.

Otherwise, create an API token and export it as AXIOM_TOKEN.

You can also configure the client using options passed to the constructor of the Client:

const client = new Client({
    token: process.env.AXIOM_TOKEN
});

Create and use a client like this:

import { Axiom } from '@axiomhq/js';


async function main() {
    const axiom = new Axiom({
        token: process.env.AXIOM_TOKEN
    });

    await axiom.ingest('my-dataset', [{ foo: 'bar' }]);

    const res = await axiom.query(`['my-dataset'] | where foo == 'bar' | limit 100`);
}

These examples send an API event to Axiom. Before getting started with Axiom API, you need to create a Dataset and API Token.

Ingest Events using JSON

The following example request contains grouped events. The structure of the JSON payload should have the scheme of [ { "labels": { "key1": "value1", "key2": "value12" } }, ], in which the array comprises of one or more JSON objects describing Events.

Example Request using JSON

curl -X 'POST' 'https://api.axiom.co/v1/datasets/$DATASET_NAME/ingest' \
  -H 'Authorization: Bearer $API_TOKEN' \
  -H 'Content-Type: application/json' \
  -d '[
        {
          "time":"2025-01-12T00:00:00.000Z",
          "data":{"key1":"value1","key2":"value2"}
        },
        {
          "data":{"key3":"value3"},
          "labels":{"key4":"value4"}
        }
      ]'

Example Response

A successful POST Request returns a 200 response code JSON with details:

{
    "ingested": 2,
    "failed": 0,
    "failures": [],
    "processedBytes": 219,
    "blocksCreated": 0,
    "walLength": 8
}

Example Request using Nested Arrays

curl -X 'POST' 'https://api.axiom.co/v1/datasets/$DATASET_NAME/ingest' \
  -H 'Authorization: Bearer $API_TOKEN' \
  -H 'Content-Type: application/json' \
  -d '[
        {
        "axiom": [{
            "logging":[{
                "observability":[{
                    "location":[{
                        "credentials":[{
                            "datasets":[{
                                "first_name":"axiom",
                                "last_name":"logging",
                                "location":"global"
                            }],
                            "work":[{
                                "details":"https://app.axiom.co/",
                                "tutorials":"https://www.axiom.co/blog",
                                "changelog":"https://www.axiom.co/changelog",
                                "documentation": "https://www.axiom.co/docs"
                            }]
                        }],
                        "social_media":[{
                            "details":[{
                                "twitter":"https://twitter.com/AxiomFM",
                                "linkedin":"https://linkedin.com/company/axiomhq",
                                "github":"https://github.com/axiomhq"
                            }],
                            "features":[{
                                "datasets":"view logs",
                                "stream":"live_tail",
                                "explorer":"queries"
                            }]
                        }]
                    }]
                }],
                "logs":[{
                    "apl": "functions"
                }]
            }],
            "storage":[{}]
        }]}
      ]'

Example Response

A successful POST Request returns a 200 response code JSON with details:

{
  "ingested":1,
  "failed":0,
  "failures":[],
  "processedBytes":1509,
  "blocksCreated":0,
  "walLength":6
}

Example Request using Objects, Strings, and Arrays

curl -X 'POST' 'https://api.axiom.co/v1/datasets/$DATASET_NAME/ingest' \
  -H 'Authorization: Bearer $API_TOKEN' \
  -H 'Content-Type: application/json' \
  -d '[{ "axiom": {
    "logging": {
        "observability": [
            { "apl": 23, "function": "tostring" },
            { "apl": 24, "operator": "summarize" }
        ],
        "axiom": [
            { "stream": "livetail", "datasets": [4, 0, 16], "logging": "observability", "metrics": 8, "dashboard": 10, "alerting": "kubernetes" }
        ]
    },
    "apl": {
        "reference":
            [[80, 12], [30, 40]]
    }
  }
}]'

Example Response

A successful POST Request returns a 200 response code JSON with details:

{
  "ingested":1,
  "failed":0,
  "failures":[],
  "processedBytes":432,
  "blocksCreated":0,
  "walLength":7
}

Example Response

A successful POST Request returns a 200 response code JSON with details:

{
    "ingested": 6,
    "failed": 0,
    "failures": [],
    "processedBytes": 236,
    "blocksCreated": 0,
    "walLength": 6
}

Ingest Events using CSV

The following example request contains events. The structure of the CSV payload uses a comma to separate values 'value1, value2, value3'.

Example Request using CSV

curl -X 'POST' 'https://api.axiom.co/v1/datasets/$DATASET_NAME/ingest' \
      -H 'Authorization: Bearer $API_TOKEN' \
      -H 'Content-Type: text/csv' \
      -d 'user, name
         foo, bar'

Example Response

A successful POST Request returns a 200 response code JSON with details:

{
    "ingested": 1,
    "failed": 0,
    "failures": [],
    "processedBytes": 28,
    "blocksCreated": 0,
    "walLength": 2
}

Datasets names are usually case sensitive, Dataset names must be between 1-128 characters, and may only contain ASCII alphanumeric characters and the ’-’ character.