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Ruby

Thananjaya Chakravarthy
Thananjaya Chakravarthy
4,672 Points
Posted by Thananjaya Chakravarthy
Thananjaya Chakravarthy
4,672 Points

Error Throwing, 'unknown format', pointing towards respond_to |format|. Any solutions for this?

Rails version 5, throwing error in the sense unknown format respond_to |format| do format.js end Is there any solutions for it

Thananjaya Chakravarthy
Thananjaya Chakravarthy
4,672 Points
Thananjaya Chakravarthy
Thananjaya Chakravarthy
4,672 Points

code is

respond_to do |format| format.js end

1 Answer

Ari Misha
Ari Misha
19,323 Points
Ari Misha
Ari Misha
19,323 Points

Hiya there! The original syntax for respond_to is respond_to(*mimes). Say client wants response in HTML or JS or even XML, you could just say something like this:

def index
  @people = Person.all
  respond_to do |format|
    format.html
    format.js
    format.xml { render xml: @people }
  end
end

By default your application respond with every format. But for simple whitelisting of format in your application , i'd rather use this:

def index
  @people = Person.all
  respond_to :html :js
end

Rails is smart enough to know what kinda format is asked of in request hash and it'll respond with appropriate format , even if its a simple API application layer. Now regarding your code, unfortunately , your codes not enough for me to analyze and gimme my feedback. Thats why i provided you a nice example of how to use respond_to method. I hope it solved your issue and if not please do publish your full controller code. Good luck!

~ Ari