Function: Basic cURL GET

javascript
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// To run configure the settings for this Function, basicCurlGet, as follows:
//
// Version 7.1+
//   "Function Scope"
//     *.* (or try bulk.data if non-privileged)
// Version 7.0+
//   "Listen to Location"
//     bulk.data.source
//   "Eventing Storage"
//     rr100.eventing.metadata
//   Binding(s)
//    1. "binding type", "alias name...",   "URL...",                       "misc.",
//       "URL alias",    "exchangeRateApi", "https://api.frankfurter.app/", "no auth"
//
// Version 6.X
//   "Source Bucket"
//     source
//   "MetaData Bucket"
//     metadata
//   Binding(s)
//    1. "binding type", "alias name...",   "URL...",                       "misc.",
//       "URL alias",    "exchangeRateApi", "https://api.frankfurter.app/", "no auth"

function OnUpdate(doc, meta) {
    // You would typically filter to mutations of interest
    if (meta.id !== 'make_curl_request::1') return;
    try {
        // only make a cURL GET request id we see a mutation on the above KEY
        var request = { path: "latest" }; // easiest API call could supply YYYY-MM-DD
        //  perform the cURL request using the URL alias from the settings
        var response = curl('GET', exchangeRateApi, request);
        if (response.status != 200 && response.status != 302) {
            log("cURL GET failed response.status:",response.status)
        } else {
            log("cURL GET success, response.body:",response.body)
            // optional write to a bucket - requires a binding alias in settings
            // dst_col[meta.id] = response.body;
        }
    } catch (e) {
        log("cURL request had an exception:",e)
    }
}