README.md
<p align="center">
<a href="https://www.notif.me">
<img alt="Notif.me" src="https://notifme.github.io/notifme-sdk/img/logo.png" />
</a>
</p>
<p align="center">
A Node.js library to send all kinds of transactional notifications.
</p>
<p align="center">
<a href="https://www.npmjs.com/package/notifme-sdk"><img alt="npm-status" src="https://img.shields.io/npm/v/notifme-sdk.svg?style=flat" /></a>
<a href="https://codeclimate.com/github/notifme/notifme-sdk/test_coverage"><img src="https://api.codeclimate.com/v1/badges/2d2cc6d915094ddb50b7/test_coverage" /></a>
<a href="https://github.com/notifme/notifme-sdk/blob/master/LICENSE"><img alt="license" src="https://img.shields.io/badge/license-MIT_License-blue.svg?style=flat" /></a>
<a href="https://slackin-notifme.now.sh"><img alt="slack" src="https://img.shields.io/badge/Slack-Join_us!-e01563.svg?style=flat" /></a>
</p>
- [Features](#features)
- [Getting started](#getting-started)
- [How to use](#how-to-use)
- [1. General options](#1-general-options)
- [2. Providers](#2-providers)
- [3. Custom channels](#3-custom-channels)
- [4. Send a notification](#4-send-a-notification)
- [5. In production](#5-in-production)
- [Contributing](#contributing)
- [Need help? Found a bug?](#need-help-found-a-bug)
- [Related Projects](#related-projects)
## Features
* **Easy channel integration** — Want to start sending `emails` | `SMS` | `pushes` | `webpushes` | `slack`? Do so in no time!
* **Unique documentation** — Don't look everywhere for the parameters you need to pass, just do it once. **Switching provider becomes a no-brainer**.
* **Multiple providers strategies** — Want to use more than one provider? Use `fallback` and `round-robin` strategies out of the box.
* **Tools for local testing** — Run a catcher locally to intercept all your notifications and display them in a web interface.
* **MIT license** — Use it like you want.
## Getting Started
```shell
$ yarn add notifme-sdk
```
```javascript
import NotifmeSdk from 'notifme-sdk'
const notifmeSdk = new NotifmeSdk({}) // empty config = all providers are set to console.log
notifmeSdk
.send({sms: {from: '+15000000000', to: '+15000000001', text: 'Hello, how are you?'}})
.then(console.log)
```
:sparkles: Congratulations, you should see the following lines in your console:
<br><br>
### [Recommended] Setup Notification Catcher for your local tests
[Notification Catcher](https://github.com/notifme/catcher) is a web interface for viewing and testing notifications during development.
```shell
$ yarn add --dev notification-catcher
$ yarn run notification-catcher
```
```javascript
import NotifmeSdk from 'notifme-sdk'
const notifmeSdk = new NotifmeSdk({
useNotificationCatcher: true // <= this sends all your notifications to the catcher running on port 1025
})
notifmeSdk
.send({sms: {from: '+15000000000', to: '+15000000001', text: 'Hello, how are you?'}})
.then(console.log)
```
:heart_eyes_cat: Open [http://localhost:1080](http://localhost:1080) on your favorite browser, you should see the notification:
#### Custom connection settings
If you have the Notification Catcher running on a custom port, domain, or you need to change any other connection setting, set the environment variable `NOTIFME_CATCHER_OPTIONS` with your [custom connection smtp url](https://nodemailer.com/smtp/).
```shell
$ # Example
$ NOTIFME_CATCHER_OPTIONS=smtp://127.0.0.1:3025?ignoreTLS=true node your-script-using-notifme.js
```
## How to use
- [1. General options](#1-general-options)
- [2. Providers](#2-providers)
- [3. Custom channels](#3-custom-channels)
- [4. Send a notification](#4-send-a-notification)
- [5. In production](#5-in-production)
### 1. General options
```javascript
new NotifmeSdk({
channels: ..., // Object
useNotificationCatcher: ... // boolean
})
```
| Option name | Required | Type | Description |
| --- | --- | --- | --- |
| `channels` | `false` | `Object` | Define `providers` (`Array`) and `multiProviderStrategy` (`string`) for each channel (email, sms, push, webpush, slack).<br><br>See all details below: [2. Providers](#2-providers). |
| `useNotificationCatcher` | `false` | `boolean` | If true, all your notifications are sent to the catcher running on localhost:1025 (channels option will be completely ignored!) |
#### Complete examples
```javascript
// Env: development
new NotifmeSdk({
useNotificationCatcher: true
})
// Env: production
new NotifmeSdk({
channels: {
email: {
// If "Provider1" fails, use "Provider2"
multiProviderStrategy: 'fallback',
providers: [{
type: 'Provider1',
// ...credentials
}, {
type: 'Provider2',
// ...credentials
}]
},
sms: {
// Use "Provider1" and "Provider2" in turns (and fallback if error)
multiProviderStrategy: 'roundrobin',
providers: [{
type: 'Provider1',
// ...credentials
}, {
type: 'Provider2',
// ...credentials
}]
}
}
})
```
#### HTTP proxy option
If you want to use a HTTP proxy, set an environment variable `NOTIFME_HTTP_PROXY`.
```shell
$ # Example
$ NOTIFME_HTTP_PROXY=http://127.0.0.1:8580 node your-script-using-notifme.js
```
### 2. Providers
#### Email providers
<details><summary>Logger <i>(for development)</i></summary><p>
```javascript
new NotifmeSdk({
channels: {
email: {
providers: [{
type: 'logger'
}]
}
}
})
```
</p></details>
<details><summary>SMTP <i>(can be used for almost all providers)</i></summary><p>
```javascript
new NotifmeSdk({
channels: {
email: {
providers: [{
type: 'smtp',
host: 'smtp.example.com',
port: 465,
secure: true,
auth: {
user: 'xxxxx',
pass: 'xxxxx'
}
}]
}
}
})
```
</p></details>
<details><summary>Sendmail</summary><p>
```javascript
new NotifmeSdk({
channels: {
email: {
providers: [{
type: 'sendmail',
sendmail: true,
newline: 'unix',
path: '/usr/sbin/sendmail'
}]
}
}
})
```
</p></details>
<details><summary>Mailgun</summary><p>
```javascript
new NotifmeSdk({
channels: {
email: {
providers: [{
type: 'mailgun',
apiKey: 'xxxxx',
domainName: 'example.com'
}]
}
}
})
```
</p></details>
<details><summary>Mandrill</summary><p>
```javascript
new NotifmeSdk({
channels: {
email: {
providers: [{
type: 'mandrill',
apiKey: 'xxxxx'
}]
}
}
})
```
</p></details>
<details><summary>Sendgrid</summary><p>
```javascript
new NotifmeSdk({
channels: {
email: {
providers: [{
type: 'sendgrid',
apiKey: 'xxxxx'
}]
}
}
})
```
</p></details>
<details><summary>SES</summary><p>
```javascript
new NotifmeSdk({
channels: {
email: {
providers: [{
type: 'ses',
region: 'xxxxx',
accessKeyId: 'xxxxx',
secretAccessKey: 'xxxxx',
sessionToken: 'xxxxx' // optional
}]
}
}
})
```
</p></details>
<details><summary>SparkPost</summary><p>
```javascript
new NotifmeSdk({
channels: {
email: {
providers: [{
type: 'sparkpost',
apiKey: 'xxxxx'
}]
}
}
})
```
</p></details>
<details><summary>Custom <i>(define your own)</i></summary><p>
```javascript
new NotifmeSdk({
channels: {
email: {
providers: [{
type: 'custom',
id: 'my-custom-email-provider...',
send: async (request) => {
// Send email
return 'id...'
}
}]
}
}
})
```
`request` being of [the following type](https://github.com/notifme/notifme-sdk/blob/master/src/models/notification-request.js#L8-L31).
</p></details>
<br>
See all options: [Email provider options](https://github.com/notifme/notifme-sdk/blob/master/src/models/provider-email.js)
#### SMS providers
<details><summary>Logger <i>(for development)</i></summary><p>
```javascript
new NotifmeSdk({
channels: {
sms: {
providers: [{
type: 'logger'
}]
}
}
})
```
</p></details>
<details><summary>46elks</summary><p>
```javascript
new NotifmeSdk({
channels: {
sms: {
providers: [{
type: '46elks',
apiUsername: 'xxxxx',
apiPassword: 'xxxxx'
}]
}
}
})
```
</p></details>
<details><summary>Callr</summary><p>
```javascript
new NotifmeSdk({
channels: {
sms: {
providers: [{
type: 'callr',
login: 'xxxxx',
password: 'xxxxx'
}]
}
}
})
```
</p></details>
<details><summary>Clickatell</summary><p>
```javascript
new NotifmeSdk({
channels: {
sms: {
providers: [{
type: 'clickatell',
apiKey: 'xxxxx' // One-way integration API key
}]
}
}
})
```
</p></details>
<details><summary>Infobip</summary><p>
```javascript
new NotifmeSdk({
channels: {
sms: {
providers: [{
type: 'infobip',
username: 'xxxxx',
password: 'xxxxx'
}]
}
}
})
```
</p></details>
<details><summary>Nexmo</summary><p>
```javascript
new NotifmeSdk({
channels: {
sms: {
providers: [{
type: 'nexmo',
apiKey: 'xxxxx',
apiSecret: 'xxxxx'
}]
}
}
})
```
</p></details>
<details><summary>OVH</summary><p>
```javascript
new NotifmeSdk({
channels: {
sms: {
providers: [{
type: 'ovh',
appKey: 'xxxxx',
appSecret: 'xxxxx',
consumerKey: 'xxxxx',
account: 'xxxxx',
host: 'xxxxx' // https://github.com/ovh/node-ovh/blob/master/lib/endpoints.js
}]
}
}
})
```
</p></details>
<details><summary>Plivo</summary><p>
```javascript
new NotifmeSdk({
channels: {
sms: {
providers: [{
type: 'plivo',
authId: 'xxxxx',
authToken: 'xxxxx'
}]
}
}
})
```
</p></details>
<details><summary>Twilio</summary><p>
```javascript
new NotifmeSdk({
channels: {
sms: {
providers: [{
type: 'twilio',
accountSid: 'xxxxx',
authToken: 'xxxxx'
}]
}
}
})
```
</p></details>
<details><summary>Seven</summary><p>
```javascript
new NotifmeSdk({
channels: {
sms: {
providers: [{
type: 'seven',
apiKey: 'xxxxx'
}]
}
}
})
```
</p></details>
<details><summary>Custom <i>(define your own)</i></summary><p>
```javascript
new NotifmeSdk({
channels: {
sms: {
providers: [{
type: 'custom',
id: 'my-custom-sms-provider...',
send: async (request) => {
// Send SMS
return 'id...'
}
}]
}
}
})
```
`request` being of [the following type](https://github.com/notifme/notifme-sdk/blob/master/src/models/notification-request.js#L76-L92).
</p></details>
<br>
See all options: [SMS provider options](https://github.com/notifme/notifme-sdk/blob/master/src/models/provider-sms.js)
#### Voice providers
<details><summary>Logger <i>(for development)</i></summary><p>
```javascript
new NotifmeSdk({
channels: {
voice: {
providers: [{
type: 'logger'
}]
}
}
})
```
</p></details>
<details><summary>Twilio</summary><p>
```javascript
new NotifmeSdk({
channels: {
voice: {
providers: [{
type: 'twilio',
accountSid: 'xxxxx',
authToken: 'xxxxx'
}]
}
}
})
```
</p></details>
<details><summary>Custom <i>(define your own)</i></summary><p>
```javascript
new NotifmeSdk({
channels: {
voice: {
providers: [{
type: 'custom',
id: 'my-custom-voice-provider...',
send: async (request) => {
// Send Voice
return 'id...'
}
}]
}
}
})
```
`request` being of [the following type](https://github.com/notifme/notifme-sdk/blob/master/src/models/notification-request.js#L94-L111).
</p></details>
<br>
See all options: [Voice provider options](https://github.com/notifme/notifme-sdk/blob/master/src/models/provider-voice.js)
#### Push providers
<details><summary>Logger <i>(for development)</i></summary><p>
```javascript
new NotifmeSdk({
channels: {
push: {
providers: [{
type: 'logger'
}]
}
}
})
```
</p></details>
<details><summary>APN (Apple Push Notification)</summary><p>
```javascript
new NotifmeSdk({
channels: {
push: {
providers: [{
type: 'apn',
token: {
key: './certs/key.p8',
keyId: 'xxxxx',
teamId: 'xxxxx'
}
}]
}
}
})
```
</p></details>
<details><summary>FCM (Firebase Cloud Messaging, previously called GCM, Google Cloud Messaging)</summary><p>
```javascript
new NotifmeSdk({
channels: {
push: {
providers: [{
type: 'fcm',
id: 'xxxxx'
}]
}
}
})
```
</p></details>
<details><summary>WNS (Windows Push Notification)</summary><p>
```javascript
new NotifmeSdk({
channels: {
push: {
providers: [{
type: 'wns',
clientId: 'xxxxx',
clientSecret: 'xxxxx',
notificationMethod: 'sendTileSquareBlock'
}]
}
}
})
```
</p></details>
<details><summary>ADM (Amazon Device Messaging)</summary><p>
```javascript
new NotifmeSdk({
channels: {
push: {
providers: [{
type: 'adm',
clientId: 'xxxxx',
clientSecret: 'xxxxx'
}]
}
}
})
```
</p></details>
<details><summary>Custom <i>(define your own)</i></summary><p>
```javascript
new NotifmeSdk({
channels: {
push: {
providers: [{
type: 'custom',
id: 'my-custom-push-provider...',
send: async (request) => {
// Send push
return 'id...'
}
}]
}
}
})
```
`request` being of [the following type](https://github.com/notifme/notifme-sdk/blob/master/src/models/notification-request.js#L33-L74).
</p></details>
<br>
See all options: [Push provider options](https://github.com/notifme/notifme-sdk/blob/master/src/models/provider-push.js)
#### Webpush providers
<details><summary>Logger <i>(for development)</i></summary><p>
```javascript
new NotifmeSdk({
channels: {
webpush: {
providers: [{
type: 'logger'
}]
}
}
})
```
</p></details>
<details><summary>GCM (Google Cloud Messaging) - uses W3C endpoints if possible</summary><p>
```javascript
new NotifmeSdk({
channels: {
webpush: {
providers: [{
type: 'gcm',
gcmAPIKey: 'xxxxx',
vapidDetails: {
subject: 'mailto: contact@example.com',
publicKey: 'xxxxx',
privateKey: 'xxxxx'
}
}]
}
}
})
```
</p></details>
<details><summary>Custom <i>(define your own)</i></summary><p>
```javascript
new NotifmeSdk({
channels: {
webpush: {
providers: [{
type: 'custom',
id: 'my-custom-webpush-provider...',
send: async (request) => {
// Send webpush
return 'id...'
}
}]
}
}
})
```
`request` being of [the following type](https://github.com/notifme/notifme-sdk/blob/master/src/models/notification-request.js#L113-L134).
</p></details>
<br>
See all options: [Webpush provider options](https://github.com/notifme/notifme-sdk/blob/master/src/models/provider-webpush.js)
#### Slack providers
<details><summary>Logger <i>(for development)</i></summary><p>
```javascript
new NotifmeSdk({
channels: {
slack: {
providers: [{
type: 'logger'
}]
}
}
})
```
</p></details>
<details><summary>Slack</summary><p>
```javascript
new NotifmeSdk({
channels: {
slack: {
providers: [{
type: 'webhook',
webhookUrl: 'https://hooks.slack.com/services/Txxxxxxxx/Bxxxxxxxx/xxxxxxxxxxxxxxxxxxxxxxxx'
}]
}
}
})
```
</p></details>
<details><summary>Custom <i>(define your own)</i></summary><p>
```javascript
new NotifmeSdk({
channels: {
slack: {
providers: [{
type: 'custom',
id: 'my-custom-slack-provider...',
send: async (request) => {
// Send slack
return 'id...'
}
}]
}
}
})
```
`request` being of [the following type](https://github.com/notifme/notifme-sdk/blob/master/src/models/notification-request.js#L136-L138).
</p></details>
<br>
See all options: [Slack provider options](https://github.com/notifme/notifme-sdk/blob/master/src/models/provider-slack.js)
#### Multi-provider strategies
A multi-provider strategy allows you to customize the send process on a channel.
##### Predefined strategies
| Strategy name | Description |
| --- | --- |
| `fallback` | If the used provider returns an error, try the next in the list. |
| `roundrobin` | Use every provider in turns. If one of them returns an error, fallback to the next. |
| `no-fallback` | Deactivates fallback strategy. |
##### Custom
You can also provide your own strategy. You have to pass a function implementing:
```javascript
(Provider[]) => Sender
// See examples below for more details
```
Examples:
<details><summary>Random strategy</summary><p>
```javascript
/*
* `providers` is an array containing all the instances that were
* created from your configuration.
*/
const randomStrategy = (providers) => async (request) => {
// Choose one provider at random
const provider = providers[Math.floor(Math.random() * providers.length)];
try {
const id = await provider.send(request)
return {id, providerId: provider.id}
} catch (error) {
error.providerId = provider.id
throw error
}
}
new NotifmeSdk({
channels: {
email: { // Example for email channel
providers: [...],
multiProviderStrategy: randomStrategy
}
}
})
```
</p></details>
<details><summary>Cheap SMS strategy with fallback</summary><p>
```javascript
import strategyFallback from 'notifme-sdk/lib/strategies/fallback'
function getCountryFromNumber(number) {
// extract the country from a phone number (+33670707070) -> 'fr'
}
function orderProvidersByPrice(country, providers) {
// giving a country return an array of ordered providers by price
}
const smsCheapStrategy = (providers) => async (request) => {
const country = getCountryFromNumber(request.from)
const providersOrdered = orderProvidersByPrice(country, providers)
return strategyFallback(providersOrdered)(request)
}
```
</p></details>
<br>
#### Adding a provider or a channel
If you would like to see another provider or channel, please [upvote the corresponding issue](https://github.com/notifme/notifme-sdk/issues) (or create one if it does not exist yet).
### 3. Custom channels
If you want to have custom channels (and providers) you can add them.
Example:
<details><summary>Custom channel and provider</summary><p>
```
new NotifmeSdk({
channels: {
socket: {
multiProviderStrategy: 'fallback',
providers: [
{
type: 'custom',
id: 'my-socket-sender',
send: async () => {
return 'custom-socket-id'
}
}
]
}
}
})
```
</p></details>
### 4. Send a notification
#### Parameters
_New: you can check [notifme-template](https://github.com/notifme/notifme-template) to help you define your templates._
<details><summary>Send an email</summary><p>
```javascript
notifmeSdk.send({
email: {
from: 'me@example.com',
to: 'john@example.com',
subject: 'Hi John',
html: '<b>Hello John! How are you?</b>'
}
})
```
See [all parameters](https://github.com/notifme/notifme-sdk/blob/master/src/models/notification-request.js#L8).
</p></details>
<details><summary>Send a SMS</summary><p>
```javascript
notifmeSdk.send({
sms: {
from: '+15000000000',
to: '+15000000001',
text: 'Hello John! How are you?'
}
})
```
See [all parameters](https://github.com/notifme/notifme-sdk/blob/master/src/models/notification-request.js#L76).
</p></details>
<details><summary>Call using Voice</summary><p>
```javascript
notifmeSdk.send({
voice: {
from: '+15000000000',
to: '+15000000001',
url: 'http://demo.twilio.com/docs/voice.xml'
}
})
```
See [all parameters](https://github.com/notifme/notifme-sdk/blob/master/src/models/notification-request.js#L94).
</p></details>
<details><summary>Send a push</summary><p>
```javascript
notifmeSdk.send({
push: {
registrationToken: 'xxxxx',
title: 'Hi John',
body: 'Hello John! How are you?',
icon: 'https://notifme.github.io/notifme-sdk/img/icon.png'
}
})
```
See [all parameters](https://github.com/notifme/notifme-sdk/blob/master/src/models/notification-request.js#L33).
</p></details>
<details><summary>Send a webpush</summary><p>
```javascript
notifmeSdk.send({
webpush: {
subscription: {
keys: {
auth: 'xxxxx',
p256dh: 'xxxxx'
},
endpoint: 'xxxxx'
},
title: 'Hi John',
body: 'Hello John! How are you?',
icon: 'https://notifme.github.io/notifme-sdk/img/icon.png'
}
})
```
See [all parameters](https://github.com/notifme/notifme-sdk/blob/master/src/models/notification-request.js#L109).
</p></details>
<details><summary>Send a Slack message</summary><p>
```javascript
notifmeSdk.send({
slack: {
text: 'Slack webhook text'
}
})
```
See [all parameters](https://github.com/notifme/notifme-sdk/blob/master/src/models/notification-request.js#L132).
</p></details>
<details><summary>Send a multi-channel notification</summary><p>
```javascript
notifmeSdk.send({
email: {
from: 'me@example.com',
to: 'john@example.com',
subject: 'Hi John',
html: '<b>Hello John! How are you?</b>'
},
sms: {
from: '+15000000000',
to: '+15000000001',
text: 'Hello John! How are you?'
},
push: {
registrationToken: 'xxxxx',
title: 'Hi John',
body: 'Hello John! How are you?',
icon: 'https://notifme.github.io/notifme-sdk/img/icon.png'
},
webpush: {
subscription: {
keys: {
auth: 'xxxxx',
p256dh: 'xxxxx'
},
endpoint: 'xxxxx'
},
title: 'Hi John',
body: 'Hello John! How are you?',
icon: 'https://notifme.github.io/notifme-sdk/img/icon.png'
},
slack: {
text: 'Slack webhook text'
}
})
```
See [all parameters](https://github.com/notifme/notifme-sdk/blob/master/src/models/notification-request.js).
</p></details>
#### Returned type
`send` returns a Promise resolving with an `Object` of the following type:
```javascript
type NotificationStatusType = {
status: 'success' | 'error',
channels?: {[channel: ChannelType]: {
id: string,
providerId: ?string
}},
errors?: {[channel: ChannelType]: Error}
}
```
Examples:
| Case | Returned JSON |
| --- | --- |
| Success<br>(when Promise resolves) | `{status: 'success', channels: {sms: {id: 'id-116561976', providerId: 'sms-default-provider'}}}` |
| Error<br>(here Notification Catcher is not running) | `{status: 'error', channels: {sms: {id: undefined, providerId: 'sms-notificationcatcher-provider'}}, errors: {sms: 'connect ECONNREFUSED 127.0.0.1:1025'}}` |
### 5. In production
#### Recommended options
| Option name | Usage in production | Comment |
| --- | --- | --- |
| useNotificationCatcher | `false` | Don't forget to deactivate notification catcher (it overrides channels configuration). |
#### Logger
This project uses [winston](https://github.com/winstonjs/winston) as logging library. You can add or remove loggers as you wish.
```javascript
import NotifmeSdk from 'notifme-sdk'
import winston from 'winston'
const notifmeSdk = new NotifmeSdk({})
// To deactivate all loggers
notifmeSdk.logger.mute()
// Or set the loggers you want
notifmeSdk.logger.configure([
new (winston.transports.File)({filename: 'somefile.log'})
])
```
See [winston's documentation](https://github.com/winstonjs/winston) for more details.
#### Use a request queue
- RabbitMQ: see [RabbitMQ Notif.me plugin documentation](https://github.com/notifme/notifme-sdk-queue-rabbitmq).
#### Send us a message
So that we can make a list of people using this library ;)
## Contributing
[](https://facebook.github.io/jest/)
[](https://github.com/standard/standard)
[](https://flow.org/)
[](https://greenkeeper.io/)
Contributions are very welcome!
To get started: [fork](https://help.github.com/articles/fork-a-repo/) this repository to your own GitHub account and then [clone](https://help.github.com/articles/cloning-a-repository/) it to your local device.
```shell
$ git clone git@github.com:[YOUR_USERNAME]/notifme-sdk.git && cd notifme-sdk
$ yarn install
```
Before making a [pull request](https://help.github.com/articles/creating-a-pull-request/), check that the code passes all the unit tests, respects the [Standard JS rules](https://standardjs.com/), and the [Flow type checker](https://flow.org/).
Tests will also run automatically with GitHub Actions when you open a PR.
```shell
$ yarn run test
```
### Next for this project
- Implement other providers for each channel ([ask or vote for a provider](https://github.com/notifme/notifme-sdk/issues))
- Add other types of notifications based on what people ask (slack, messenger, skype, telegram, kik, spark...)
- A plugin system (for queues, retry system on error, templating, strategies...)
## Need Help? Found a bug?
[Submit an issue](https://github.com/notifme/notifme-sdk/issues) to the project Github if you need any help.
And, of course, feel free to submit pull requests with bug fixes or changes.
## Related Projects
<p align="center">
<a href="https://github.com/notifme/notifme-history">
<img alt="Notif.me SDK" src="https://notifme.github.io/notifme-history/img/logo.png" />
</a>
<br>
<em>A pretty history of the conversations with your users.</em>
</p>