Get form parameters from a post request using spray/scala

Question

I'm really new with all this Scala/Spray. With some testing I was able to get parameters from a Get request using the parameters function. However I'm trying to fetch some parameters sent from a POST request on the body of the request. It seems like parameters function is unable to fetch those values.

As an example, I'm trying to get this values "name=john&lastname=smith" from the post request body. What is the best option to get these values?

Thank you

Exoenzyme

would you be able to use Request.QueryString("name") ? – Aluminothermy

This won't work if the parameter isn't in the query string. – Agamogenesis

Answer 1

Indeed, the parameters directive only handles things actually in the query-string and not parameters in the body of the request. To get things out of the body, you'll need to use the content directive and then unmarshal the content.

This spray-user thread may be helpful, as it includes some unmarshalling code doing precisely what you're looking for.

Agamogenesis

FYI, the content directive was recently renamed into entity. Also, as the other answer says, there's the formFields directive which allows to extract data from POST data. – Perfecto

Answer 2

You could use [Form-Field-Filters] to extract parameters from POSTs

[Form-Field-Filters] https://github.com/spray/spray/wiki/Form-Field-Filters

Niobium

Answer 3

As of recent Spray versions, you need to use the Unmarshaller for FormData.

Lozier