PayPal .NET SDK

The PayPal .NET SDK was developed to simplify the process of accepting a credit card payment via PayPal's service.

Developers can initiate payments, send back funds, check payment details, store credit card details, and also work in live or sandbox environments.

The SDK uses OAuth2 for secure authentication and fetches all responses in JSON.

Examples and usage instructions are included with the download package.

This API is also available for:
PHP
Java
Ruby
Python
Node.js

What is new in this release:

• Add support for validating received webhook event notifications.
• Fix issue #102: Add `PayPalLogger.Delimiter` key support in `<appSettings>` config section.
• Improved connection retry logic.
• Improved unit and functional test coverage.
• Marked certain PayPal-internal fields as obsolete.

What is new in version 1.4.2:

• Fix Invoicing API support
• Add `JsonFormatter` deserialization error event support
• Improve compatibility with Classic SDKs
• Minor improvements to samples and tests

What is new in version 1.4.1:

• Fix Invoicing API support
• Add `JsonFormatter` deserialization error event support
• Improve compatibility with Classic SDKs
• Minor improvements to samples and tests

What is new in version 1.4.0:

• `BaseLogger` is now public, allowing developers to add custom logger support
• Fixed sample for creating and executing an order
• Update Payments API support with new classes and properties

What is new in version 1.3.1:

• Added code workaround for `InvalidCastException` Mono bug.

What is new in version 1.3.0:

• Add `PayoutItem.Cancel()` support
• Re-add Identity `Userinfo` support
• `Agreement.ListTransactions()` now requires `startDate` and `endDate`
• Deprecate `time_updated` property for `AgreementTransaction` and replace with `time_stamp`
• Numerous `FundingInstrument` properties marked as currently not supported and hidden from Intellisense view

What is new in version 1.2.2:

• Log records missing object fields when deserializing JSON strings.
• Added missing class properties for invoicing.

What is new in version 1.2.0:

• Added Payouts support.

What is new in version 1.1.0:

• Add Webhooks support
• Add missing class properties
• Add OAuthTokenCredential constructor that just takes config

What is new in version 1.0.0:

• Integrated PayPal Core SDK
• Renamed projects and built assemblies
• Removed .NET 3.5 support
• Added .NET 4.5.1 support
• Built assemblies are now marked with AllowPartiallyTrustedCallers attribute

What is new in version 0.11.0:

• Added support for Billing Plans and Agreements
• Updated sample project to cover billing plans and agreements
• Sample project now includes logging without extra setup

What is new in version 0.8.0:

• Adding future payment support.

What is new in version 0.7.8:

• Fixing NuGet package dependency listing for PayPal Core.

What is new in version 0.7.4:

• Updated new version of core SDK.
• Added support for multiple target .NET frameworks.

What is new in version 0.7.3:

• Added support for Reauthorization.

What is new in version 0.7.2:

• Fixed bug for extended types.

What is new in version 0.7.1:

• Bug fix release for "internal server error" issues in OAuth calls.

What is new in version 0.7.0:

• Added support for Auth and Capture APIs.
• Types Modified to match the API Spec.

What is new in version 0.6.0:

• Added support for dynamic configuration of SDK (Upgraded sdk-core-dotnet dependency to V1.3.0).
• Deprecated the setCredential method and changed resource class methods to take an ApiContext argument instead of an OauthTokenCredential argument.

What is new in version 0.5.2:

• Initial release.

Requirements:

• Visual Studio 2008 or higher