Transform body content before parsing

[gtaylor1981]

I'd like to be able to change the content of the response before it gets parsed. This would be of help if the JSON that is returned is malformed in a known way, or if it has been encoded/encrypted.

Looking at the source code, a straightforward way to implement this might be to add an asJson(Function<String, String> transformer) method.

For example, if a REST API returns { "result": 1234 } { "error": "none"} It is recognised as invalid JSON so cannot be mapped by asJson(). Then I could write:

.post("url")
.asJson(jsonString -> jsonString.split(" \\{")[0])

This would be fine for my purposes but would work only for asJson() and leaves the other API methods without this useful feature. A more general approach (that works more like interceptors) might look like:

.post("url")
.transformRawResponse(rawResponse -> convert(rawResponse.getContentAsString().split(" \\{")[0]))
.asJson()

(Here, I'm not sure what the transformer should return so I used convert() as a placeholder.)

[ryber]

The JSON Object has a public constructor so an easy way to do this would be:

JsonNode e = Unirest.get("http://localhost")
                .asString()
                .mapBody(b -> {
                    String newBody = b.split(" \\{")[0];
                    return new JsonNode(newBody);
                });

[gtaylor1981]

Thanks for the suggestion, it's good enough to solve my problem. I won't close this issue in case you think the generalised 'pre-transform' or asJson(transform) suggestions are still worth investigating/implementing, otherwise feel free to close. Thanks for your time.