tushar
Below is the json I get after encoding it using Jason
"{\"topic\": \"dummy_topic\", \"msg\": \"{\"fruit\":\"apple\",\"dish\":\"apple-pie\"}\"}"
I am trying to pass it as the body of the request while calling an API using HTTPoison , it gives me the json decode error
tried the same on terminal and I get below ,
iex(10)> var = "{\"topic\": \"dummy_topic\", \"msg\": \"{\"fruit\":\"apple\",\"dish\":\"apple-pie\"}\"}"
"{\"topic\": \"dummy_topic\", \"msg\": \"{\"fruit\":\"apple\",\"dish\":\"apple-pie\"}\"}"
iex(11)> Jason.decode(var)
{:error,
%Jason.DecodeError{
data: "{\"topic\": \"dummy_topic\", \"msg\": \"{\"fruit\":\"apple\",\"dish\":\"apple-pie\"}\"}",
position: 35,
token: nil
}}
Which is the exact same error I get when when I use HTTPoison ,
my expectation is I should be getting something like below when I use Jason.decode ,
%{
"topic" => "dummy_topic",
"msg" => %{"fruit" => "apple", "dish" => "apple-pie"}
}
Do you know where I am getting it wrong or what can be done to get the expected output ?
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NobbZ
That is where the error is, this matches exactly with what I said, the quotes aren’t escaped properly. The following should be valid:
Alternatively, you have to double escape in the
msgfield:I prefer the sigil approach for readability.
NobbZ
Due to the doublequotes in the value of
msgbeeing improperly escaped, you don’t have valid JSON.NobbZ
These variants should both work. I’m not sure about exact quoting here, so it might be, that you need to wrap the interpolated value in another pair of quotes.
I prefer the first approach for readability.
Last Post!
NobbZ
You can’t decide it, because you encode it wrong, that’s what I am trying to tell you the whole time.
Have you tried my suggestions from Decoding Multi Level Json - #6 by NobbZ?