sort with telegraf the information of a json file

I want to retrieve the measurements of a sensor from a web database and display them on chronograf. I want to retrieve all the “values” of the “Valeur” sensor to display them. However, I can’t in my telegraf configuration tell him to retrieve the value of “Valeur” from all these messages. For the moment he dissociates me all the values, so on Chronograf I see value 1, value 2… while I would like just value containing all the values. I don’t know if you know what I mean. Here is my database and my telegraf configuration: