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Java | How can I create a list from a json using JsonPath RestAssured?

I have the following json and want to create a list from the display names, the json can have many different types not necessarily only 2:

{"data": [
  {
  "types": {
    "1": {
    "display_name": "123",
    },
    "2": {
    "display_name": "321",
    },
  }
}

I’ve tried the following:

JsonPath json = response.jsonPath();
List<String> list = json.getList("data.types.*.display_name");

to get the display names, I can easily replace the "*" with "1" or "2" but I don’t know what the name of the types will be (not necessarily 1 or 2, could be any string).

I want to create a list of strings from all of the display names in the json.

Tags:

2

Answers


  1. 0

    Creating a list from a JSON response using JsonPath in RestAssured with Java, you can do using number of these steps :

    1. Import the necessary libraries:
      Import the required libraries for RestAssured and JsonPath.

    import io.restassured.RestAssured;
    import io.restassured.path.json.JsonPath;

    1. Send a GET request and retrieve the JSON response:
      Send a GET request to your API endpoint and retrieve the JSON response as a string.

    String response = RestAssured.get("your_api_endpoint").asString();

    1. Create a JsonPath object from the response:
      Create a JsonPath object by passing the response string to it.

    JsonPath jsonPath = new JsonPath(response);

    1. Use JsonPath to extract the desired list from the JSON structure:
      Use the JsonPath object to extract the desired list from the JSON structure. Specify the JSON path expression for the list you want to extract.

    List myList = jsonPath.getList("path.to.list");

    Replace "path.to.list" with the actual JSON path expression to your desired list. For example, if the JSON response has an array of names at the root level, you can use $ to represent the root and specify the property name:

    List names = jsonPath.getList("$.names");

    1. You can then use the myList or names list as per your requirements.
      Store the extracted list in a type List variable.

    You can then use the list for further processing or manipulation in your code.

    Note: adjust the JSON path expression to match the structure of your JSON response and the specific list you want to extract.

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  2. 0

    I think JsonPath jayway is better in this case. The code would be

    @Test
public void test76514033() {
    String json = "{n" +
            "  "data": [n" +
            "    {n" +
            "      "types": {n" +
            "        "1": {n" +
            "          "display_name": "123"n" +
            "        },n" +
            "        "2": {n" +
            "          "display_name": "321"n" +
            "        }n" +
            "      }n" +
            "    }n" +
            "  ]n" +
            "}";

    List<String> names =  com.jayway.jsonpath.JsonPath.read(json, "$.data..display_name");
    System.out.println(names);  //["123","321"]
}
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