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…

Due to the doublequotes in the value of msg beeing improperly escaped, you don’t have valid JSON.

"{\"topic\": \"dummy_topic\", \"msg\": \"{\"fruit\":\"apple\",\"dish\":\"apple-pie\"}\"}" ^^ That is where the error is, this matches exactly with what I said, the quotes aren’t escaped properly. The following should be valid: ~S'{"topic": "dummy_topic","m…

Thanks @NobbZ , It was happening because of the sigil , I found it finally and solved it by replacing the body of the inner json into a String that would contain a place holder for it. So my requirement here was the value of a key in the map would be another json , that json would also be derived …

Jason.encode(%{ topic: "dummy", msg: Jason.encode(%{a: "message blob"}) }) # or ~s'{"topic":"dummy","msg":#{Jason.encode(Jason.encode(%{a: "message blob"}))}}' 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 …

"{\"topic\": \"dummy_topic\", \"msg\": \"{\"fruit\":\"apple\",\"dish\":\"apple-pie\"}\"}" → This does not work iex(1)> Jason.decode("{\"topic\": \"dummy_topic\", \"msg\": \"{\"fruit\":\"apple\",\"dish\":\"apple-pie\"}\"}") {:error, %Jason.DecodeError{ data: "{\"topic\": \"dummy_topic\", \"msg\…

I thought you want msg to be a string containing JSON? Then of course you can not remove the wrapping quotes that make it a string.

True but as is , the string causes a problem when I try to decode it using Jason.decode Its unable to find the inner map… , any way we can counter that problem and have my desired structure back from the json string , if you need the original Elixir map which I converted to Json and and want to hav…

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 ?

Elixir Programming Language Forum

Decoding Multi Level Json

Questions & Help Questions

ityonemo July 9, 2020, 4:04am 3

It’s in position 35, as the error states.