### Installing Dependencies - npm/Bash

Source: https://github.com/fbsamples/fblogin-sample/blob/main/loginconnect_directintegrator/README.md

Installs the project's required Node.js dependencies listed in the package.json file using npm. This command must be executed within the cloned repository directory.

```bash
$ npm install
```

--------------------------------

### Installing Dependencies (Yarn) - Yarn/Bash

Source: https://github.com/fbsamples/fblogin-sample/blob/main/loginconnect_directintegrator/README.md

Installs the project's required Node.js dependencies using Yarn as an alternative package manager to npm. This command serves the same purpose as 'npm install'.

```bash
$ yarn install
```

--------------------------------

### Running the Application - Node.js/Bash

Source: https://github.com/fbsamples/fblogin-sample/blob/main/loginconnect_directintegrator/README.md

Starts the Node.js application server by executing the 'app.js' file. This command launches the Messenger bot application locally, typically listening on port 3000.

```bash
node app.js
```

--------------------------------

### Cloning the Repository - Git/Bash

Source: https://github.com/fbsamples/fblogin-sample/blob/main/loginconnect_directintegrator/README.md

Clones the sample Messenger bot repository from GitHub to your local machine and navigates into the project directory. This is the initial step to obtain the source code.

```bash
$ git clone https://github.com/fbsamples/fblogin-sample.git
$ cd fblogin-sample
```

--------------------------------

### Starting ngrok Tunnel - ngrok/Bash

Source: https://github.com/fbsamples/fblogin-sample/blob/main/loginconnect_directintegrator/README.md

Starts an ngrok HTTP tunnel, forwarding requests from a public HTTPS URL to your local server running on port 3000. This command provides the external URL required for webhook configuration.

```bash
ngrok http 3000
```

--------------------------------

### Installing ngrok Globally - npm/Bash

Source: https://github.com/fbsamples/fblogin-sample/blob/main/loginconnect_directintegrator/README.md

Installs the ngrok tunneling service globally using npm. ngrok is necessary to expose your local development server to the internet, allowing Facebook to send webhook events to it.

```bash
npm install -g ngrok
```

--------------------------------

### Creating Heroku App via CLI (Bash)

Source: https://github.com/fbsamples/fblogin-sample/blob/main/loginconnect_directintegrator/README.md

Creates a new Heroku application from the command line interface. The output shows the generated app name and URLs.

```Bash
heroku apps:create
```

--------------------------------

### Copying Environment File - Bash

Source: https://github.com/fbsamples/fblogin-sample/blob/main/loginconnect_directintegrator/README.md

Copies the sample environment configuration file '.sample.env' to '.env'. The '.env' file is used to store sensitive application settings like API keys and tokens.

```bash
cp .sample.env .env
```

--------------------------------

### Deploying Code to Heroku (Bash)

Source: https://github.com/fbsamples/fblogin-sample/blob/main/loginconnect_directintegrator/README.md

Deploys the current state of the master branch of the local Git repository to the linked Heroku application.

```Bash
git push heroku master
```

--------------------------------

### Calling Heroku App Profile Endpoint (URL)

Source: https://github.com/fbsamples/fblogin-sample/blob/main/loginconnect_directintegrator/README.md

Example URL to call the /profile endpoint on the deployed Heroku application to configure webhook subscriptions and set the Messenger profile. Replace placeholders with your app name and verify token.

```URL
http://<YOUR APP NAME>.herokuapp.com/profile?mode=all&verify_token=<VERIFY_TOKEN>
```

--------------------------------

### Viewing Heroku App Logs (Bash)

Source: https://github.com/fbsamples/fblogin-sample/blob/main/loginconnect_directintegrator/README.md

Streams the real-time log output from the Heroku application to the console, useful for debugging.

```Bash
heroku logs --tail
```

--------------------------------

### Configuring Webhook and Profile - URL/Endpoint

Source: https://github.com/fbsamples/fblogin-sample/blob/main/loginconnect_directintegrator/README.md

Accesses the '/profile' endpoint of the local application to configure the Messenger webhook subscription and set Messenger profile settings. Replace 'verify-tokenl' with the actual VERIFY_TOKEN from your .env file.

```URL
http://localhost:3000/profile?mode=all&verify_token=verify-tokenl
```

--------------------------------

### Setting Heroku Config Variable via CLI (Bash)

Source: https://github.com/fbsamples/fblogin-sample/blob/main/loginconnect_directintegrator/README.md

Sets an environment variable (config var) for the Heroku application using the command line. Replace PAGE_ID=XXXX with the desired variable name and value.

```Bash
heroku config:set PAGE_ID=XXXX
```

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