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winston-slack-webhook-transport

v2.3.6

Published

A Slack transport for Winston 3 that logs to a channel via webhooks.

Downloads

94,458

Readme

winston-slack-webhook-transport

A Slack transport for Winston 3+ that logs to a channel via webhooks.

Continuous Integration npm version downloads

Installation

npm install winston winston-slack-webhook-transport

Usage

Set up with transports

const winston = require("winston");
const SlackHook = require("winston-slack-webhook-transport");

const logger = winston.createLogger({
    level: "info",
    transports: [
        new SlackHook({
            webhookUrl: "https://hooks.slack.com/services/xxx/xxx/xxx"
        })
    ]
});

logger.info("This should now appear on Slack");

Set up by adding

const winston = require("winston");
const SlackHook = require("winston-slack-webhook-transport");

const logger = winston.createLogger({});

logger.add(new SlackHook({ webhookUrl: "https://hooks.slack.com/services/xxx/xxx/xxx" }));

Options

Message formatting

winston-slack-webhook-transport supports the ability to format messages using Slack's message layout features. To do this, supply a custom formatter function that returns the requisite object structure to create the desired layout. You can use the Slack Block Kit Builder to quickly and easily prototype advanced layouts using Block Kit.

If for some reason you don't want to send a message to Slack, you can also return false to prevent the log message from being sent.

Formatters can also override the channel the message is posted to, username, and icon by defining the properties channel, username, iconEmoji, or iconUrl in the same object structure. These will override any options set in the transport constructor.

Note that if you're using Block Kit using either the attachments or blocks keys, the text parameter will function as a fallback for surfaces that do not support Block Kit, such as push notifications. It is recommended to include text when possible in these cases.

const winston = require("winston");
const SlackHook = require("winston-slack-webhook-transport");
 
const logger = winston.createLogger({
    level: "info",
    transports: [
        new SlackHook({
            webhookUrl: "https://hooks.slack.com/services/xxx/xxx/xxx",
            formatter: info => {
                return {
                    text: "This will function as a fallback for surfaces that don't support Block Kit, like IRC clients or mobile push notifications.",
                    blocks: [
                        {
                            type: "section",
                            text: {
                                type: "plain_text",
                                text: "You can pass more info to the formatter by supplying additional parameters in the logger call"
                            }
                        }
                    ],
                    attachments: [
                        {
                            text: "Or don't pass anything. That's fine too"
                        }
                    ]
                }
            }
        })
    ]
});

logger.info("Definitely try playing around with this.");