


How to Fix \'invalid character \'ï\' looking for beginning of value\' Error in JSON Unmarshal?
Error Handling: Resolving Invalid Character Error during JSON Unmarshal
A web service request to Microsoft Translator yielded an error when attempting to unmarshal JSON output using json.Unmarshal. The specific error encountered was "invalid character 'ï' looking for beginning of value."
Investigating the Issue
Upon inspecting the JSON response as a string, it became evident that the data appeared valid. However, comparing the byte arrays of the response and a manually marshaled version of the expected data revealed a discrepancy.
Identification of the Problem
The discrepancy was attributed to the presence of a Byte Order Mark (BOM) in the response. A BOM is a special character that identifies the encoding of a text file, in this case, UTF-8.
Resolution
The BOM needs to be removed before decoding the JSON response. This can be achieved using the following line of code:
body = bytes.TrimPrefix(body, []byte("\xef\xbb\xbf")) // Or []byte{239, 187, 191}
Explanation
The bytes.TrimPrefix function removes the BOM from the beginning of the body byte array, allowing the subsequent json.Unmarshal operation to proceed without encountering the invalid character error.
Conclusion
The error "invalid character 'ï' looking for beginning of value" during json.Unmarshal can be caused by a BOM in the JSON response. Removing the BOM using the bytes.TrimPrefix function resolves the issue and allows the data to be successfully unmarshaled.
The above is the detailed content of How to Fix \'invalid character \'ï\' looking for beginning of value\' Error in JSON Unmarshal?. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











Go language performs well in building efficient and scalable systems. Its advantages include: 1. High performance: compiled into machine code, fast running speed; 2. Concurrent programming: simplify multitasking through goroutines and channels; 3. Simplicity: concise syntax, reducing learning and maintenance costs; 4. Cross-platform: supports cross-platform compilation, easy deployment.

Golang is better than C in concurrency, while C is better than Golang in raw speed. 1) Golang achieves efficient concurrency through goroutine and channel, which is suitable for handling a large number of concurrent tasks. 2)C Through compiler optimization and standard library, it provides high performance close to hardware, suitable for applications that require extreme optimization.

Golang and Python each have their own advantages: Golang is suitable for high performance and concurrent programming, while Python is suitable for data science and web development. Golang is known for its concurrency model and efficient performance, while Python is known for its concise syntax and rich library ecosystem.

Golang is better than Python in terms of performance and scalability. 1) Golang's compilation-type characteristics and efficient concurrency model make it perform well in high concurrency scenarios. 2) Python, as an interpreted language, executes slowly, but can optimize performance through tools such as Cython.

Goimpactsdevelopmentpositivelythroughspeed,efficiency,andsimplicity.1)Speed:Gocompilesquicklyandrunsefficiently,idealforlargeprojects.2)Efficiency:Itscomprehensivestandardlibraryreducesexternaldependencies,enhancingdevelopmentefficiency.3)Simplicity:

Golang and C each have their own advantages in performance competitions: 1) Golang is suitable for high concurrency and rapid development, and 2) C provides higher performance and fine-grained control. The selection should be based on project requirements and team technology stack.

C is more suitable for scenarios where direct control of hardware resources and high performance optimization is required, while Golang is more suitable for scenarios where rapid development and high concurrency processing are required. 1.C's advantage lies in its close to hardware characteristics and high optimization capabilities, which are suitable for high-performance needs such as game development. 2.Golang's advantage lies in its concise syntax and natural concurrency support, which is suitable for high concurrency service development.

The performance differences between Golang and C are mainly reflected in memory management, compilation optimization and runtime efficiency. 1) Golang's garbage collection mechanism is convenient but may affect performance, 2) C's manual memory management and compiler optimization are more efficient in recursive computing.
