Fetch JSON from external source

Support
1

Hello, loving grav so far but had a question regarding fetching JSON from an external source. I want to hit an endpoint and set the JSON object to a theme variable and render it that way. I am currently doing it with javascript but would rather use twig.

Is there a plugin or code snippet that would help me achieve this?

1 Like
2

This is really beyond the default capability of Twig which is a templating language. If you really MUST do it from Twig, you could create a plugin that uses a custom function. There are examples of this being done in plugins such as Star Ratings

3

Thanks for pointing me in the right direction, I managed to get the JSON via cURL but am having a hard time exposing the data to the template via twig. Is there a way to return a twig variable here:

        public function getFunctions()
        {
            return [
                new \Twig_SimpleFunction('jobs', [$this, 'getJobs'])
            ];
        }
        public function getJobs()
        {
            $url = "https://api.greenhouse.io/v1/boards/companyId/jobs";

            $ch = curl_init();
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            curl_setopt($ch, CURLOPT_URL,$url);
            $result=curl_exec($ch);
            curl_close($ch);
            
            // Assign Twig Var here?
            return $result;
        }
4

You can’t return a variable, twig function just return a string or an object. The $results you are already returning should work:

{% set jobs = jobs() %}
{{ dump(jobs) }}

Should show you the result you want as the variable result. Turn on the debugger and look in the Messages panel to see the output of that dump.

5

This did the trick! Thank you! :pray: