### Install Verotel FlexPay Laravel Package via Composer

Source: https://github.com/pipisco/laravel-verotel-flexpay/blob/master/README.md

This command installs the Verotel FlexPay Laravel package into your project using Composer, the PHP dependency manager. It fetches the package and its dependencies, making them available for use in your application.

```bash
composer require pipisco/laravel-verotel-flexpay
```

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

### Create Recurring Verotel FlexPay Subscription Order (PHP)

Source: https://github.com/pipisco/laravel-verotel-flexpay/blob/master/README.md

This PHP method illustrates how to set up a recurring subscription order using Verotel FlexPay. Similar to the one-time example, it initializes a `FlexPayClient` and specifies mandatory parameters, but sets the `SUBSCRIPTION_TYPE` to `RECURRING` before redirecting to the Verotel order page.

```php
    /**
     * @param Request $request
     * @return RedirectResponse
     * @throws \Exception
     * @throws \Pipisco\Verotel\FlexPay\FlexPayException
     */
    public function subscribe(Request $request) : RedirectResponse
    {
        $flexpay = new FlexPayClient();

        return redirect($flexpay->processor()->subscription([
            UrlParameter::NAME              => 'Order name',
            UrlParameter::SUBSCRIPTION_TYPE => SubscriptionType::RECURRING,
            UrlParameter::PRICE_AMOUNT      => 99.99,
            UrlParameter::PRICE_CURRENCY    => Currency::USD,
            UrlParameter::PERIOD            => 'P1M',
        ]));
    }
```

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

### Create One-Time Verotel FlexPay Subscription Order (PHP)

Source: https://github.com/pipisco/laravel-verotel-flexpay/blob/master/README.md

This PHP method demonstrates how to initiate a one-time subscription order with Verotel FlexPay. It uses the `FlexPayClient` to configure mandatory parameters such as order name, subscription type (one-time), price, currency (USD), and period (1 month), then redirects the user to the Verotel order page.

```php
    /**
     * @param Request $request
     * @return RedirectResponse
     * @throws \Exception
     * @throws \Pipisco\Verotel\FlexPay\FlexPayException
     */
    public function subscribe(Request $request) : RedirectResponse
    {
        $flexpay = new FlexPayClient();
        
        return redirect($flexpay->processor()->subscription([
            UrlParameter::NAME              => 'Order name',
            UrlParameter::SUBSCRIPTION_TYPE => SubscriptionType::ONE_TIME,
            UrlParameter::PRICE_AMOUNT      => 99.99,
            UrlParameter::PRICE_CURRENCY    => Currency::USD,
            UrlParameter::PERIOD            => 'P1M',
        ]));
    }
```

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

### Verotel FlexPay Subscription URL Parameters (APIDOC)

Source: https://github.com/pipisco/laravel-verotel-flexpay/blob/master/README.md

This section details the available URL parameters for configuring Verotel FlexPay subscription requests. It provides information on each parameter's name, associated enum helper class, data type, requirement status (mandatory/optional), and a comprehensive description, including supported values and constraints.

```APIDOC
Verotel FlexPay Subscription Parameters:
  - Parameter: priceAmount
    Enum Helper Class: UrlParameter::PRICE_AMOUNT
    Type: Float
    Required: mandatory
    Description: priceAmount amount to be processed in nnn.nn format
    Notes: You can use Currency enum class and choose right currency from then: Currency::USD, Currency::EUR, Currency::GBP, Currency::AUD, Currency::CAD, Currency::CHF, Currency::DKK, Currency::NOK, Currency::SEK
  - Parameter: priceCurrency
    Enum Helper Class: UrlParameter::PRICE_CURRENCY
    Type: String
    Required: mandatory
    Description: priceCurrency 3 char ISO code, must be one of the Sale currencies (USD EUR GBP AUD CAD CHF DKK NOK SEK)
    Notes: only EUR is can be used for DDEU payment method system
  - Parameter: period
    Enum Helper Class: UrlParameter::PERIOD
    Type: String
    Required: mandatory
    Description: Duration in ISO8601 format, for example: P30D, minimum is 7 days for recurring and 2 days for on-time
  - Parameter: subscriptionType
    Enum Helper Class: UrlParameter::SUBSCRIPTION_TYPE
    Type: String
    Required: mandatory
    Description: NOTE: DDEU and BTC only support one-time
    Notes: You can use SubscriptionType enum class and choose subscription type as bellow: SubscriptionType::ONE_TIME, SubscriptionType::RECURRING
  - Parameter: trialAmount
    Enum Helper Class: UrlParameter::TRIAL_AMOUNT
    Type: Number
    Required: optional
    Description: Amount to be processed in nnn.nn format for the initial trial period, minimum is 2 days
  - Parameter: trialPeriod
    Enum Helper Class: UrlParameter::TRIAL_PERIOD
    Type: String
    Required: optional
    Description: Duration in ISO8601 format, for example: P30D
  - Parameter: name
    Enum Helper Class: UrlParameter::NAME
    Type: String
    Required: optional
    Description: Name of the product. Text is displayed on the order page - max 100 printable characters
  - Parameter: paymentMethod
    Enum Helper Class: UrlParameter::PAYMENT_METHOD
    Type: String
    Required: optional
    Description: Payment method, CC, DDEU or BTC (if not set then buyers can choose from available payment methods)
    Notes: It's a perfect params because yourself choose payment method. For helpful, you can use my PaymentMethod enum class as: Credit card payment PaymentMethod::CREDIT_CARD, PaymentMethod::BTC to Bitcoin payment and PaymentMethod::DIGITAL_DATA_ENTRY_UTIL. NOTE: DDEU is available only in DE, AT, CH, BE, IT, NL, ES and FR
  - Parameter: referenceID
    Enum Helper Class: UrlParameter::REFERENCE_ID
    Type: String
    Required: optional
    Description: Merchant's reference identifier. It must be unique if provided
  - Parameter: custom1
    Enum Helper Class: UrlParameter::CUSTOM_1
    Type: String
    Required: optional
    Description: Pass-through variable - max 255 printable characters
  - Parameter: custom2
    Enum Helper Class: UrlParameter::CUSTOM_2
    Type: String
    Required: optional
    Description: Pass-through variable - max 255 printable characters
  - Parameter: custom3
    Enum Helper Class: UrlParameter::CUSTOM_3
    Type: String
    Required: optional
    Description: Pass-through variable - max 255 printable characters
  - Parameter: backURL
    Enum Helper Class: UrlParameter::BACK_URL
    Type: String
    Required: optional
    Description: URL for redirect after successful transaction - max 255 characters
```

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

### Configure Verotel FlexPay Credentials in .env

Source: https://github.com/pipisco/laravel-verotel-flexpay/blob/master/README.md

This code snippet demonstrates how to set the necessary Verotel FlexPay credentials within your Laravel application's .env configuration file. These environment variables are crucial for authenticating with the Verotel FlexPay service.

```php
VEROTEL_FLEXPAY_ID=<SHOP_ID>
VEROTEL_FLEXPAY_SECRET=<SIGNATURE_KEY>
VEROTEL_FLEXPAY_MERCHANT_ID=<MERCHANT_ID>
VEROTEL_FLEXPAY_API_VERSION=3.4
```

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

### Verotel Flexpay URL Parameters

Source: https://github.com/pipisco/laravel-verotel-flexpay/blob/master/README.md

Defines the available URL parameters for configuring Verotel Flexpay transactions, including their types, optionality, and purpose. These parameters are used to control aspects like redirection after a transaction or pre-filling buyer information.

```APIDOC
Parameter: declineURL
  Constant: UrlParameter::DECLINE_URL
  Type: String
  Optional: true
  Description: URL for redirect after declined transaction - max 255 characters

Parameter: email
  Constant: UrlParameter::EMAIL
  Type: String
  Optional: true
  Description: Email of the buyer. If not set, it will be collected on the Order Page
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.