JSON responses in Rails - ruby-on-rails

Question

I am using an API for my university project, which sends me multiple responses which are all valid JSON.
Both are treated as string in response.body so I need to parse them into JSON or ruby object.
The first one passes through the JSON parser but fails if I use eval which returns a ruby object
{
apiCode: "SUCCESS",
friendlyMessage: "All information saved successfully"
}
Second one passes through eval and gives me a valid Ruby object but fails as a valid JSON.
{
apiCode: "SUCCESS_WITH_ERRORS",
friendlyMessage: "Some of the information was not processed",
successfulIds: [
{
ssid: "My Test 1",
bssid: "2d:8c:e5:5c:bb:b9"
},
{
ssid: "My Test 2",
bssid: "2a:7d:a4:5c:aa:a7"
}
]
Regards,
Babar

Answer 1

Running both your JSON blobs through both JSON Lint and Ruby's JSON library results in an error.
The error for the first one is
Error: Parse error on line 1:
{ apiCode: "SUCCESS",
--^
Expecting 'STRING', '}', got 'undefined'
and for the second one is
Error: Parse error on line 1:
{ apiCode: "SUCCESS_WI
--^
Expecting 'STRING', '}', got 'undefined'
The errors suggest that your JSON should look like (I'm showing the first one here)
{
"apiCode": "SUCCESS",
"friendlyMessage": "All information saved successfully"
}
(which parses successfully everywhere).

Answer 2

Using eval for parsing data coming from some external source is a bad idea, because opens a direct code execution vulnerability.
For parsing JSON there's a build-in parser:
require 'json'
ruby_object = JSON.load(your_json_string)
For more speed, if you need it, use a dedicated json parser gem like oj directly or through MultiJson gem.
Also your second json is missing the final } so is not valid, also hash keys in json are supposed to be in "