The Bearer Token in Thunder Client

This article focuses on integrating OAuth 2.0 Bearer Tokens across all requests in Thunder Client. We'll explore OAuth 2.0 fundamentals, and the significance of Bearer Tokens, and provide a concise guide for Thunder Client configuration.

David Demir

David Demir

1 August 2025

The Bearer Token in Thunder Client

In the realm of web development and API testing, secure authentication is crucial. OAuth 2.0, a widely adopted framework, and Bearer Tokens, a key element, play a central role in ensuring secure access to protected resources. Thunder Client, a robust REST client for Visual Studio Code, is a powerful solution.

This article focuses on bearer tokens across all requests in Thunder Client. We'll explore OAuth 2.0 fundamentals, and the significance of Bearer Tokens, and provide a concise guide for Thunder Client configuration.  In addition, Apidog is another powerful API tool with various authorization types.

button

The Bearer Token and OAuth2 in Thunder Client

Thunder Client is a lightweight REST and GraphQL API client that allows developers to easily test and debug APIs. Some key things to know about Thunder Client:

The purpose of setting a Bearer Token for requests in Thunder Client is for authentication. Many web APIs use OAuth 2.0 Bearer tokens for authentication and authorization.

When you obtain a Bearer token from an identity provider, you can configure Thunder Client to automatically include that token in the Authorization header of every request. This means you are authenticated and authorized to access resources permitted by that token without needing to manually deal with the token over and over.

OAuth 2.0  in Thunder Client

Thunder Client offers a user-friendly interface, making it accessible even for beginners. By following the steps outlined in the intuitive interface and referencing your API documentation, you can swiftly generate your OAuth 2.0 token with minimal effort.

Thunder Client streamlines the token generation process, ensuring a seamless experience for users, whether they are novices or experienced developers. With just a few essential details inputted into the provided fields, you can quickly obtain the necessary token for authentication in your API interactions.

Thunder Client's user-centric design simplifies the token generation journey, providing an efficient solution for integrating OAuth 2.0 in your projects.

To learn more about OAuth 2 to generate tokens, please view here.

Refresh Tokens Automatically

OAuth 2 tokens are set to refresh automatically at the request, folder, and collection levels. The token values are stored locally, not in JSON files.

Additionally, you have the option to save tokens per environment by enabling the VS Code setting "Save Token Per Environment." In case of any issues, simply click the "Generate Token" button again, and the refresh process should resolve any problems.

Apidog Authorization

Apidog is a comprehensive suite for API design, debugging, development, mock, and testing. Apidog allows you to easily obtain an OAuth 2.0 access token with just a single click through its intuitive UI. It automatically populates the access token in the request headers for you.

Apidog Authorization

The UI clearly displays the token's expiration date, and you can refresh the token with one click when needed. This makes testing APIs that require OAuth 2.0 authentication extremely convenient within Apidog's powerful API management platform.

button


Explore more

How to Use Discriminator to Match Different Parameter Structures by Type When Designing APIs in Apidog

How to Use Discriminator to Match Different Parameter Structures by Type When Designing APIs in Apidog

When an API has multiple parameter structures, oneOf or anyOf can define them—but the relationships aren’t always clear. By adding a discriminator, you can use a shared field to automatically switch between schemas, making your documentation in Apidog more intuitive and easier to read.

6 November 2025

How to Claim Free Claude Code Credits: $250 for Pro, $1000 for Max Subscribers

How to Claim Free Claude Code Credits: $250 for Pro, $1000 for Max Subscribers

Claude Pro and Max subscribers gain free credits for Claude Code on web and mobile – $250 for Pro, $1000 for Max. This technical guide covers features, claiming process, integration with Apidog, and developer benefits.

6 November 2025

What Is a JSON Validator: The Complete Guide to Clean And Error-Free JSON

What Is a JSON Validator: The Complete Guide to Clean And Error-Free JSON

Discover what a JSON validator is, why it matters for API development, and how Apidog’s powerful API mocking and validation tools streamline your workflow. Try Apidog for free today!

5 November 2025

Practice API Design-first in Apidog

Discover an easier way to build and use APIs