# Method Invocation And Conversion

Ecotone resolves handler arguments, payload types, and headers through a unified method-invocation pipeline. Conversion turns serialized payloads (JSON, XML, or framework-native formats) into the PHP types your handler signatures declare — and back again when messages cross channel boundaries.

{% content-ref url="/pages/-LwiixUrgqNF3ZbrnBYV" %}
[Method Invocation](/messaging/conversion/method-invocation.md)
{% endcontent-ref %}

{% content-ref url="/pages/-M2i-zDW5OcAcBOToKe0" %}
[Conversion](/messaging/conversion/conversion.md)
{% endcontent-ref %}


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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

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