Blog
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How to Properly Cancel Axios Requests in Request Interceptors When No Token Exists: Fixing 'cancelToken' Undefined Error
In modern web applications, handling authentication tokens (e.g., JWT) is critical for securing API requests. A common requirement is to **cancel requests**...
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Why Does Axios Send Two Requests (OPTIONS & POST) When Posting Data? Explained
If you’ve ever used Axios to send a POST request from a frontend application (e.g., React, Vue) to a backend API, you might have noticed something puzzling in...
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How to Use Axios.get().then() in a For Loop and Run a Function After All Requests Complete
In modern web development, interacting with APIs is a common task. Often, you may need to fetch data from multiple endpoints—for example, retrieving user...
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Axios GET Request: How to Handle Query Parameters with Whitespace (Resolving + vs %20 Encoding Issues)
When working with APIs, query parameters are a fundamental way to pass data to a server via GET requests. However, URLs cannot contain literal whitespace...
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How to Fix Axios Error: 'Data after transformation must be a string, an ArrayBuffer, a Buffer, or a Stream' in POST Requests with FormData
If you’ve worked with Axios to send POST requests containing `FormData` (e.g., for file uploads or form submissions with mixed data types), you may have...
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How to Fix Axios CORS Issue with GitHub OAuth: Access Token Not Received in React-Redux App
GitHub OAuth integration is a popular way to add "Login with GitHub" functionality to web apps. However, developers working with React-Redux often hit a...
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Axios Basic Auth Not Working in Vue: How to Fix 401 Authorization Error for CORS API Calls
If you’re building a Vue.js application and using Axios to make API calls with Basic Authentication, encountering a `401 Unauthorized` error—especially when...
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Axios 400 Error: Why Your Request Calls 'then' Instead of 'catch'?
If you’ve worked with Axios—one of the most popular HTTP clients for JavaScript—you’ve likely encountered a perplexing scenario: you send a request, the server...
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How to Fix AWS TransferManager uploadFileList Truncating File Names in S3 Batch Uploads
AWS TransferManager (part of the AWS SDK for Java) simplifies batch file uploads to Amazon S3 by handling concurrency, retries, and multipart uploads under the...
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Troubleshooting AWS SSM GetParameters AccessDeniedException in Node.js Serverless Functions: Why CLI Works but Lambda Doesn't
As a developer working with AWS Serverless architectures, you’ve likely encountered the frustrating scenario: your Node.js Lambda function throws an...