feat: Etsy sample example

Author: melnyk-mikhailo

samples/Etsy.gs

@@ -0,0 +1,72 @@
+/*
+ * This sample demonstrates how to configure the library for the Etsy API.
+ * Instructions on how to generate OAuth credentials is available here:
+ * https://developers.etsy.com/documentation/essentials/authentication
+ */
+
+const CLIENT_ID = '...';
+const CLIENT_SECRET = '...';
+
+
+/**
+ * Authorizes and makes a request to the Etsy API.
+ */
+function run() {
+    var service = getService_();
+    if (service.hasAccess()) {
+      var url = 'https://openapi.etsy.com/v3/application/users/me';  // Replace with the appropriate Etsy API endpoint
+      var settings = {
+        method: 'GET',
+        headers: { 'Content-Type': 'application/json', "Authorization": 'Bearer ' + service.getAccessToken(), 'x-api-key': CLIENT_ID }
+      };
+  
+      var response = UrlFetchApp.fetch(url, settings);
+      var result = JSON.parse(response.getContentText());
+      Logger.log(JSON.stringify(result, null, 2));
+    } else {
+      Logger.log(service.getLastError());
+    }
+  }
+
+/**
+ * Configures the service.
+ */
+function getService_() {
+  var userProps = PropertiesService.getUserProperties();
+
+  return OAuth2.createService('Etsy')
+    .setAuthorizationBaseUrl('https://www.etsy.com/oauth/connect')
+    .setTokenUrl('https://api.etsy.com/v3/public/oauth/token')
+    .setClientId(CLIENT_ID)
+    .setClientSecret(CLIENT_SECRET)
+    .setCallbackFunction('authCallback')
+    .setPropertyStore(userProps)
+    // Etsy requires the scope to access data
+    .setScope('shops_r')
+    .setParam('response_type', 'code')
+    // Generate the PKCE parameters automatically
+    .generateCodeVerifier()
+    .setTokenPayloadHandler(function(tokenPayload) {
+      // No need to manually set code_verifier here,
+      // generateCodeVerifier() takes care of it.
+      return tokenPayload;
+    });
+}
+
+function authCallback(request) {
+  var service = getService_();
+
+  var authorized = service.handleCallback(request);
+  if (authorized) {
+    return HtmlService.createHtmlOutput('Success!');
+  } else {
+    return HtmlService.createHtmlOutput('Denied.');
+  }
+}
+
+/**
+ * Reset the authorization state, so that it can be re-tested.
+ */
+function resetAuth() {
+  PropertiesService.getUserProperties().deleteAllProperties();
+}