yhirose/cpp-httplib

form-data not working in C++ in request when body has text fields

way4sahil opened this issue · 4 comments

way4sahil commented 
  if (request.has_param("featureID") && request.has_param("data") && request.has_param("timestamp"))
  {
  }
  
  request.params is not able to recognize the data coming as form data
  
  Has someone faces this?
way4sahil commented

Hi @yhirose

it is able to read the files coming as formdata, but not the text fields, and it is reading those text fields as file only, even though it is not a file.

curl --location '' --form 'id=value' --form 'priority=1' --form 'timestamp=123456' --form 'connectionType=wifi' --form 'file=@'

It is able to read the file but not the other params like id ,priority etc.

way4sahil commented

svr.Post("/testserver", [](const httplib::Request& req, httplib::Response& res) {
// Handle text fields
std::cout << "Text fields received:" << std::endl;
for (const auto& item : req.params) {
std::cout << item.first << " = " << item.second << std::endl;
}

    // Handle file uploads
    std::cout << "Files received:" << std::endl;
    for (const auto& file : req.files) {
        std::cout << "Uploaded file key: " << file.first << "; Filename: " << file.second.filename << std::endl;
        // Optionally save the file
        // file.second.save_to("/path/to/save/" + file.second.filename); // Uncomment if needed
    }

    // Set a response
    res.set_content("Form data processed", "text/plain");
});

Output :
Text fields received:

Files received:
Uploaded file key: connectionType; Filename:
Uploaded file key: data; Filename:
Uploaded file key: featureID; Filename:
Uploaded file key: priority; Filename:
Uploaded file key: timestamp; Filename:

curl --location '' --form 'featureID=<>' --form 'priority=1' --form 'timestamp=123456' --form 'connectionType=wifi' --form 'file='

It is taking all textfields as file, it is a bug

way4sahil commented

Anyway the workaround is :
std::cout << "Files received:" << std::endl;
for (const auto& file : req.files) {
std::cout << "Uploaded file key: " << file.first << "; Filename: " << file.second.content << std::endl;
// Optionally save the file
// file.second.save_to("/path/to/save/" + file.second.filename); // Uncomment if needed
}

    Just read it as a file and the content is the text value.
    
    Please take this up if required @yhirose Thanks,