Logflare | Cloudflare, Vercel & Elixir Logging

~/logs/postgres.logs

{
  "appname": "supabase-db",
  "event_message": null,
  "id": "67c2b454-e2bd-4e84-9c8f-7ad44f511295",
  "project": "default",
  "timestamp": 1785338082347424
}

1785338082347463 PostgreSQL Database directory appears to contain a database; Skipping initialization event body

{
  "appname": "supabase-db",
  "event_message": "PostgreSQL Database directory appears to contain a database; Skipping initialization",
  "id": "2648fe89-5827-4615-a204-c87099b30441",
  "project": "default",
  "timestamp": 1785338082347463
}

1785338082347468 event body

{
  "appname": "supabase-db",
  "event_message": null,
  "id": "613bc81b-2577-45e4-8955-854de9653e68",
  "project": "default",
  "timestamp": 1785338082347468
}

1788160531534551 172.18.0.5 2026-08-31 07:15:31.523 UTC [75] supabase_admin@_supabase FATAL: terminating connection due to administrator command event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-08-31 07:15:31.523 UTC [75] supabase_admin@_supabase FATAL:  terminating connection due to administrator command",
  "id": "f7068c04-2cdb-4cfe-9bbd-102ffdb58c06",
  "metadata": {
    "host": "db-default",
    "parsed": {
      "error_severity": "FATAL",
      "timestamp": "2026-08-31T07:15:31.534551967Z"
    }
  },
  "project": "default",
  "timestamp": 1788160531534551
}

1788160531543710 172.18.0.5 2026-08-31 07:15:31.523 UTC [75] supabase_admin@_supabase STATEMENT: START_REPLICATION SLOT cainophile_9w6jxhc1 LOGICAL 0/0 (proto_version '1', publication_names '"logflare_pub"') event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-08-31 07:15:31.523 UTC [75] supabase_admin@_supabase STATEMENT:  START_REPLICATION SLOT cainophile_9w6jxhc1 LOGICAL 0/0 (proto_version '1', publication_names '\"logflare_pub\"')",
  "id": "ee7db740-e1fe-48fa-a5e5-3b7de9bdf033",
  "project": "default",
  "timestamp": 1788160531543710
}

1788777812088476 172.18.0.5 2026-09-07 10:43:32.086 UTC [3222834] supabase_admin@_supabase FATAL: terminating connection due to administrator command event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-09-07 10:43:32.086 UTC [3222834] supabase_admin@_supabase FATAL:  terminating connection due to administrator command",
  "id": "502c462a-b27b-483c-aac9-62a172acd063",
  "metadata": {
    "host": "db-default",
    "parsed": {
      "error_severity": "FATAL",
      "timestamp": "2026-09-07T10:43:32.088476616Z"
    }
  },
  "project": "default",
  "timestamp": 1788777812088476
}

1788777812091258 172.18.0.5 2026-09-07 10:43:32.086 UTC [3222834] supabase_admin@_supabase STATEMENT: START_REPLICATION SLOT cainophile_9wduhvez LOGICAL 0/0 (proto_version '1', publication_names '"logflare_pub"') event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-09-07 10:43:32.086 UTC [3222834] supabase_admin@_supabase STATEMENT:  START_REPLICATION SLOT cainophile_9wduhvez LOGICAL 0/0 (proto_version '1', publication_names '\"logflare_pub\"')",
  "id": "d29c179d-2a01-4534-8816-985914b56d48",
  "project": "default",
  "timestamp": 1788777812091258
}

1788957816782750 172.18.0.5 2026-09-09 12:43:36.772 UTC [650969] supabase_admin@_supabase FATAL: terminating connection due to administrator command event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-09-09 12:43:36.772 UTC [650969] supabase_admin@_supabase FATAL:  terminating connection due to administrator command",
  "id": "af87be50-f556-42b6-8c06-cdd0fe9b03db",
  "metadata": {
    "host": "db-default",
    "parsed": {
      "error_severity": "FATAL",
      "timestamp": "2026-09-09T12:43:36.782750248Z"
    }
  },
  "project": "default",
  "timestamp": 1788957816782750
}

1788957816786724 172.18.0.5 2026-09-09 12:43:36.772 UTC [650969] supabase_admin@_supabase STATEMENT: START_REPLICATION SLOT cainophile_yskw947c LOGICAL 0/0 (proto_version '1', publication_names '"logflare_pub"') event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-09-09 12:43:36.772 UTC [650969] supabase_admin@_supabase STATEMENT:  START_REPLICATION SLOT cainophile_yskw947c LOGICAL 0/0 (proto_version '1', publication_names '\"logflare_pub\"')",
  "id": "d5dff093-4597-450f-a1d1-6486c52ebd4b",
  "project": "default",
  "timestamp": 1788957816786724
}

1789109630842277 172.18.0.5 2026-09-11 06:53:50.830 UTC [1124737] supabase_admin@_supabase FATAL: terminating connection due to administrator command event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-09-11 06:53:50.830 UTC [1124737] supabase_admin@_supabase FATAL:  terminating connection due to administrator command",
  "id": "3de96fa3-f83f-4da1-93b2-1a7575585631",
  "metadata": {
    "host": "db-default",
    "parsed": {
      "error_severity": "FATAL",
      "timestamp": "2026-09-11T06:53:50.842277762Z"
    }
  },
  "project": "default",
  "timestamp": 1789109630842277
}

1789109630848557 172.18.0.5 2026-09-11 06:53:50.830 UTC [1124737] supabase_admin@_supabase STATEMENT: START_REPLICATION SLOT cainophile_1bmksy56 LOGICAL 0/0 (proto_version '1', publication_names '"logflare_pub"') event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-09-11 06:53:50.830 UTC [1124737] supabase_admin@_supabase STATEMENT:  START_REPLICATION SLOT cainophile_1bmksy56 LOGICAL 0/0 (proto_version '1', publication_names '\"logflare_pub\"')",
  "id": "8b67696f-ee3c-4461-9991-c25fe968d793",
  "project": "default",
  "timestamp": 1789109630848557
}

1789383620259899 172.18.0.5 2026-09-14 11:00:20.243 UTC [1524536] supabase_admin@_supabase FATAL: terminating connection due to administrator command event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-09-14 11:00:20.243 UTC [1524536] supabase_admin@_supabase FATAL:  terminating connection due to administrator command",
  "id": "4a1207e0-24e2-42e3-bb9b-064f64905ad6",
  "metadata": {
    "host": "db-default",
    "parsed": {
      "error_severity": "FATAL",
      "timestamp": "2026-09-14T11:00:20.259899223Z"
    }
  },
  "project": "default",
  "timestamp": 1789383620259899
}

1789383620264606 172.18.0.5 2026-09-14 11:00:20.243 UTC [1524536] supabase_admin@_supabase STATEMENT: START_REPLICATION SLOT cainophile_sumtoqjd LOGICAL 0/0 (proto_version '1', publication_names '"logflare_pub"') event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-09-14 11:00:20.243 UTC [1524536] supabase_admin@_supabase STATEMENT:  START_REPLICATION SLOT cainophile_sumtoqjd LOGICAL 0/0 (proto_version '1', publication_names '\"logflare_pub\"')",
  "id": "44ccd6b4-1450-45e5-9c0e-b1defecc0773",
  "project": "default",
  "timestamp": 1789383620264606
}

1789553743540482 172.18.0.5 2026-09-16 10:15:43.526 UTC [2245582] supabase_admin@_supabase FATAL: terminating connection due to administrator command event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-09-16 10:15:43.526 UTC [2245582] supabase_admin@_supabase FATAL:  terminating connection due to administrator command",
  "id": "b028c51f-faa1-4d9a-a6a8-44907abbffd6",
  "metadata": {
    "host": "db-default",
    "parsed": {
      "error_severity": "FATAL",
      "timestamp": "2026-09-16T10:15:43.540482607Z"
    }
  },
  "project": "default",
  "timestamp": 1789553743540482
}

1789553743546817 172.18.0.5 2026-09-16 10:15:43.526 UTC [2245582] supabase_admin@_supabase STATEMENT: START_REPLICATION SLOT cainophile_07bsfz3e LOGICAL 0/0 (proto_version '1', publication_names '"logflare_pub"') event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-09-16 10:15:43.526 UTC [2245582] supabase_admin@_supabase STATEMENT:  START_REPLICATION SLOT cainophile_07bsfz3e LOGICAL 0/0 (proto_version '1', publication_names '\"logflare_pub\"')",
  "id": "d7c29b06-8fd4-42ed-91b7-975dde13d604",
  "project": "default",
  "timestamp": 1789553743546817
}

1789733191140853 172.18.0.5 2026-09-18 12:06:31.131 UTC [2694769] supabase_admin@_supabase FATAL: terminating connection due to administrator command event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-09-18 12:06:31.131 UTC [2694769] supabase_admin@_supabase FATAL:  terminating connection due to administrator command",
  "id": "1ac310e2-a7e2-4527-a676-2bb0bc4be495",
  "metadata": {
    "host": "db-default",
    "parsed": {
      "error_severity": "FATAL",
      "timestamp": "2026-09-18T12:06:31.140853490Z"
    }
  },
  "project": "default",
  "timestamp": 1789733191140853
}

1789733191148244 172.18.0.5 2026-09-18 12:06:31.131 UTC [2694769] supabase_admin@_supabase STATEMENT: START_REPLICATION SLOT cainophile_t032ey6i LOGICAL 0/0 (proto_version '1', publication_names '"logflare_pub"') event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-09-18 12:06:31.131 UTC [2694769] supabase_admin@_supabase STATEMENT:  START_REPLICATION SLOT cainophile_t032ey6i LOGICAL 0/0 (proto_version '1', publication_names '\"logflare_pub\"')",
  "id": "825ab116-9716-4d74-a0ba-a446b3c6cd8e",
  "project": "default",
  "timestamp": 1789733191148244
}

1790053413487577 172.18.0.5 2026-09-22 05:03:33.475 UTC [3167677] supabase_admin@_supabase FATAL: terminating connection due to administrator command event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-09-22 05:03:33.475 UTC [3167677] supabase_admin@_supabase FATAL:  terminating connection due to administrator command",
  "id": "56167a24-3c9e-4453-9590-b31d815efc89",
  "metadata": {
    "host": "db-default",
    "parsed": {
      "error_severity": "FATAL",
      "timestamp": "2026-09-22T05:03:33.487577763Z"
    }
  },
  "project": "default",
  "timestamp": 1790053413487577
}

1790053413495428 172.18.0.5 2026-09-22 05:03:33.475 UTC [3167677] supabase_admin@_supabase STATEMENT: START_REPLICATION SLOT cainophile_t9xe5hmj LOGICAL 0/0 (proto_version '1', publication_names '"logflare_pub"') event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-09-22 05:03:33.475 UTC [3167677] supabase_admin@_supabase STATEMENT:  START_REPLICATION SLOT cainophile_t9xe5hmj LOGICAL 0/0 (proto_version '1', publication_names '\"logflare_pub\"')",
  "id": "f00fe577-5e61-40ae-851c-9b1e9c416bf8",
  "project": "default",
  "timestamp": 1790053413495428
}

1790257155177666 172.18.0.5 2026-09-24 13:39:15.162 UTC [4010290] supabase_admin@_supabase FATAL: terminating connection due to administrator command event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-09-24 13:39:15.162 UTC [4010290] supabase_admin@_supabase FATAL:  terminating connection due to administrator command",
  "id": "0a2bd514-2ab9-4c50-b990-05e9a7d4c52c",
  "metadata": {
    "host": "db-default",
    "parsed": {
      "error_severity": "FATAL",
      "timestamp": "2026-09-24T13:39:15.177666460Z"
    }
  },
  "project": "default",
  "timestamp": 1790257155177666
}

1790257155187015 172.18.0.5 2026-09-24 13:39:15.162 UTC [4010290] supabase_admin@_supabase STATEMENT: START_REPLICATION SLOT cainophile_kz7umfs9 LOGICAL 0/0 (proto_version '1', publication_names '"logflare_pub"') event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-09-24 13:39:15.162 UTC [4010290] supabase_admin@_supabase STATEMENT:  START_REPLICATION SLOT cainophile_kz7umfs9 LOGICAL 0/0 (proto_version '1', publication_names '\"logflare_pub\"')",
  "id": "ba836e15-b554-435b-acc7-795fefa7590e",
  "project": "default",
  "timestamp": 1790257155187015
}

1791088068141313 172.18.0.5 2026-10-04 04:27:48.128 UTC [354273] supabase_admin@_supabase FATAL: terminating connection due to administrator command event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-10-04 04:27:48.128 UTC [354273] supabase_admin@_supabase FATAL:  terminating connection due to administrator command",
  "id": "92150bd7-3005-4438-89a1-dd71bf952f04",
  "metadata": {
    "host": "db-default",
    "parsed": {
      "error_severity": "FATAL",
      "timestamp": "2026-10-04T04:27:48.141313404Z"
    }
  },
  "project": "default",
  "timestamp": 1791088068141313
}

1791088068144318 172.18.0.5 2026-10-04 04:27:48.128 UTC [354273] supabase_admin@_supabase STATEMENT: START_REPLICATION SLOT cainophile_dw9pujzm LOGICAL 0/0 (proto_version '1', publication_names '"logflare_pub"') event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-10-04 04:27:48.128 UTC [354273] supabase_admin@_supabase STATEMENT:  START_REPLICATION SLOT cainophile_dw9pujzm LOGICAL 0/0 (proto_version '1', publication_names '\"logflare_pub\"')",
  "id": "a69fc145-e27a-4e24-82f8-b770adfab83d",
  "project": "default",
  "timestamp": 1791088068144318
}

1791549591808900 172.18.0.5 2026-10-09 12:39:51.791 UTC [2538436] supabase_admin@_supabase FATAL: terminating connection due to administrator command event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-10-09 12:39:51.791 UTC [2538436] supabase_admin@_supabase FATAL:  terminating connection due to administrator command",
  "id": "f8dfda9e-5acd-4bd9-a78c-d787f1a4c80f",
  "metadata": {
    "host": "db-default",
    "parsed": {
      "error_severity": "FATAL",
      "timestamp": "2026-10-09T12:39:51.808900234Z"
    }
  },
  "project": "default",
  "timestamp": 1791549591808900
}

1791549591815592 172.18.0.5 2026-10-09 12:39:51.791 UTC [2538436] supabase_admin@_supabase STATEMENT: START_REPLICATION SLOT cainophile_rfwq0yzu LOGICAL 0/0 (proto_version '1', publication_names '"logflare_pub"') event body

{
  "appname": "supabase-db",
  "event_message": "172.18.0.5 2026-10-09 12:39:51.791 UTC [2538436] supabase_admin@_supabase STATEMENT:  START_REPLICATION SLOT cainophile_rfwq0yzu LOGICAL 0/0 (proto_version '1', publication_names '\"logflare_pub\"')",
  "id": "eea9c996-d3c1-43a2-9209-766e680c8038",
  "project": "default",
  "timestamp": 1791549591815592
}

random(tips): Search a date range (e.g. `t:2020-03-{01..05}T00:00:00`).

Source ID

You'll need this source ID for some integrations or libraries.

2ee36ec8-1f1a-4534-b1f6-f2828aefc9bf

If you're hosted on Vercel setup our Vercel integration!

Install the Vercel integration

Gigalixir

Install the Gigalixir command line tool, and navigate to your project directory.

          
    gigalixir drains:add "http://localhost:4000/logs/logplex?api_key=n2tx1jt1Uk1r&source=2ee36ec8-1f1a-4534-b1f6-f2828aefc9bf"

Cloudflare App

Already on Cloudflare? Install the Cloudflare app and start sending logs now.

Heroku

Add our log drain with a simple command.

          
    heroku drains:add "http://localhost:4000/logs/logplex?api_key=n2tx1jt1Uk1r&source=2ee36ec8-1f1a-4534-b1f6-f2828aefc9bf"

Elixir Logger

Using Elixir? Use our Logger backend to send your structured logs.

Setup the Logger backend

Elixir Agent

Watch log files on a server with our Elixir agent.

Install the agent

Javascript

Use our official Pino transport to send log events from your Javascript project.

Setup the Pino transport

Github Webhook

Set your Github webhook to this Logflare endpoint and we'll ingest Github webhooks for you. This endpoint drops all keys ending in _url so it keeps your Github payloads in check.

        
http://localhost:4000/logs/github?api_key=n2tx1jt1Uk1r&source=2ee36ec8-1f1a-4534-b1f6-f2828aefc9bf

Github Action

Use our Github Action (thanks @gr2m) to easily log events coming from your repositories.

Setup the Github Action

Fluent Bit

Watch log files on a server with this Fluent Bit output config.

          
    [INPUT]
        Name        tail
        Path        /var/log/syslog

    [OUTPUT]
        Name             http
        Match            *
        tls              On
        Host             api.logflare.app
        Port             443
        URI              /logs/json?api_key=n2tx1jt1Uk1r&source=2ee36ec8-1f1a-4534-b1f6-f2828aefc9bf
        Format           json
        Retry_Limit      5
        json_date_format iso8601
        json_date_key    timestamp

Generic Webhook

Use the generic JSON ingest endpoint to generate log events from an external webhook.

e.g. you can set a Github webhook to send events to:

          
http://localhost:4000/logs/json?api_key=n2tx1jt1Uk1r&source=2ee36ec8-1f1a-4534-b1f6-f2828aefc9bf

Or send generic JSON events yourself.

          
    curl -X "POST" "http://localhost:4000/logs/json?source=2ee36ec8-1f1a-4534-b1f6-f2828aefc9bf" \
         -H 'Content-Type: application/json; charset=utf-8' \
         -H 'X-API-KEY: n2tx1jt1Uk1r' \
         -d $'[
      {
        "yellow": true,
        "tags": [
          "popular, tropical, organic"
        ],
        "store": {
          "state": "AZ",
          "city": "Phoenix",
          "zip": 85016,
          "address": "123 W Main St"
        },
        "type": "fruit",
        "name": "banana",
        "qty": 12
      }
    ]'

Custom API Request

Send logs via an HTTP request. This request body payload lets you send over a human readable event message in the message field.

          
    curl -X "POST" "http://localhost:4000/logs?source=2ee36ec8-1f1a-4534-b1f6-f2828aefc9bf" \
    -H 'Content-Type: application/json' \
    -H 'X-API-KEY: n2tx1jt1Uk1r' \
    -d $'{
      "event_message": "This is another log message.",
      "metadata": {
        "ip_address": "100.100.100.100",
        "request_method": "POST",
        "custom_user_data": {
          "vip": true,
          "id": 38,
          "login_count": 154,
          "company": "Apple",
          "address": {
            "zip": "11111",
            "st": "NY",
            "street": "123 W Main St",
            "city": "New York"
          }
        },
        "datacenter": "aws",
        "request_headers": {
          "connection": "close",
          "user_agent": "chrome"
        }
      }
    }'

Custom Cloudflare Worker

Customize the Cloudflare worker using the template below.

          
    const makeid = length => {
        let text = ""
        const possible = "ABCDEFGHIJKLMNPQRSTUVWXYZ0123456789"
        for (let i = 0; i < length; i += 1) {
            text += possible.charAt(Math.floor(Math.random() * possible.length))
        }
        return text
    }

    const buildMetadataFromHeaders = headers => {
        const responseMetadata = {}
        Array.from(headers).forEach(([key, value]) => {
            responseMetadata[key.replace(/-/g, "_")] = value
        })
        return responseMetadata
    }

    const WORKER_ID = makeid(6)

    async function handleRequest(event) {
        const {
            request
        } = event;
        const rMeth = request.method
        const rUrl = request.url
        const uAgent = request.headers.get("user-agent")
        const rHost = request.headers.get("host")
        const cfRay = request.headers.get("cf-ray")
        const cIP = request.headers.get("cf-connecting-ip")
        const rCf = request.cf

        const requestMetadata = buildMetadataFromHeaders(request.headers)

        const sourceKey = "2ee36ec8-1f1a-4534-b1f6-f2828aefc9bf"
        const apiKey = "n2tx1jt1Uk1r"

        const t1 = Date.now()
        const response = await fetch(request)
        const originTimeMs = Date.now() - t1

        const statusCode = response.status

        const responseMetadata = buildMetadataFromHeaders(response.headers)

        const logEntry = `${rMeth} | ${statusCode} | ${cIP} | ${cfRay} | ${rUrl} | ${uAgent}`

        const logflareEventBody = {
            source: sourceKey,
            log_entry: logEntry,
            metadata: {
                response: {
                    headers: responseMetadata,
                    origin_time: originTimeMs,
                    status_code: response.status,
                },
                request: {
                    url: rUrl,
                    method: rMeth,
                    headers: requestMetadata,
                    cf: rCf,
                },
                logflare_worker: {
                    worker_id: WORKER_ID,
                },
            },
        }

        const init = {
            method: "POST",
            headers: {
                "X-API-KEY": apiKey,
                "Content-Type": "application/json",
                "User-Agent": `Cloudflare Worker via ${rHost}`
            },
            body: JSON.stringify(logflareEventBody),
        }

        event.waitUntil(fetch("http://localhost:4000/logs", init))

        return response
    }

    addEventListener("fetch", event => {
        event.passThroughOnException()

        event.respondWith(handleRequest(event))
    })