instagram api ruby subscription tag post access object_id

Question

the problem that i have is that when i post a picture on Instagram with the good hastag# of my subscription, i receive the notification in my callback but i can't access the object_id in the params. Here is the line that i receive :

Parameters: {"_json"=>[{"changed_aspect"=>"media", "object"=>"tag", "object_id"=>"mytag", "time"=>1439341303, "subscription_id"=>19499294, "data"=>{}}], "subscription"=>{}}

Here's my ruby code :

def process_subscription

    if params["hub.challenge"]
        render :text => params["hub.challenge"]
    else
        @test_tag_name =  params["object_id"]
    end

end

But the @test_tag_name is always to null. Thank you very much

Answer 1

For those exact params, this would work: params["_json"][0]["object_id"]

But you'll probably need to adjust based on what params["_json"] will return in the general case (I'm not familiar with that API). For example, you should probably iterate over the array it returns rather than grabbing the first element.