How to set Header with dash

[sebastianblum]

Hello!

I want to add the header "Content-Type" and tried this configuration:

guzzle:
  clients:
    emailApi:
      base_url: %email_api.uri%
      headers:
        'Content-Type': "application/json"
      plugin:
         wsse:
           username: %username%

The debug toolbar tells me, that the header is Content_Typpe (with underscore).

How can I send a header with dash?

[florianpreusner]

Now your configuration should work, underscores are going to be converted back as dashes (underscores are also not allowed in HTTP standard). The processor is normalizing yaml keys because of yaml standard conventions: https://github.com/symfony/symfony/issues/7405

[florianpreusner]

Underscore are allowed now, take a look at following PR: https://github.com/8p/GuzzleBundle/pull/111