Authorization header webhook (#2356)

Added unit test and made code prettier in 
webhook.ts
webhook.test.ts

src/lib/addons/webhook-definition.ts

@@ -44,6 +44,16 @@ const webhookDefinition: IAddonDefinition = {
             required: false,
             sensitive: false,
         },
+        {
+            name: 'authorization',
+            displayName: 'Authorization',
+            placeholder: '',
+            description:
+                '(Optional) The Authorization header to use. Not used if left blank.',
+            type: 'text',
+            required: false,
+            sensitive: true,
+        },
         {
             name: 'bodyTemplate',
             displayName: 'Body template',

src/lib/addons/webhook.test.ts

@@ -84,3 +84,33 @@ test('Should format event with "bodyTemplate"', () => {
     expect(call.options.headers['Content-Type']).toBe('text/plain');
     expect(call.options.body).toBe('feature-created on toggle some-toggle');
 });
+
+test('Should format event with "authorization"', () => {
+    const addon = new WebhookAddon({ getLogger: noLogger });
+    const event: IEvent = {
+        id: 1,
+        createdAt: new Date(),
+        type: FEATURE_CREATED,
+        createdBy: 'some@user.com',
+        featureName: 'some-toggle',
+        data: {
+            name: 'some-toggle',
+            enabled: false,
+            strategies: [{ name: 'default' }],
+        },
+    };
+
+    const parameters = {
+        url: 'http://test.webhook.com/plain',
+        bodyTemplate: '{{event.type}} on toggle {{event.data.name}}',
+        contentType: 'text/plain',
+        authorization: 'API KEY 123abc',
+    };
+
+    addon.handleEvent(event, parameters);
+    const call = fetchRetryCalls[0];
+    expect(fetchRetryCalls.length).toBe(1);
+    expect(call.url).toBe(parameters.url);
+    expect(call.options.headers.Authorization).toBe(parameters.authorization);
+    expect(call.options.body).toBe('feature-created on toggle some-toggle');
+});

src/lib/addons/webhook.ts

@@ -8,6 +8,7 @@ interface IParameters {
     url: string;
     bodyTemplate?: string;
     contentType?: string;
+    authorization?: string;
 }
 
 export default class Webhook extends Addon {
@@ -16,7 +17,7 @@ export default class Webhook extends Addon {
     }
 
     async handleEvent(event: IEvent, parameters: IParameters): Promise<void> {
-        const { url, bodyTemplate, contentType } = parameters;
+        const { url, bodyTemplate, contentType, authorization } = parameters;
         const context = {
             event,
         };
@@ -31,7 +32,10 @@ export default class Webhook extends Addon {
 
         const requestOpts = {
             method: 'POST',
-            headers: { 'Content-Type': contentType || 'application/json' },
+            headers: {
+                'Content-Type': contentType || 'application/json',
+                Authorization: authorization || undefined,
+            },
             body,
         };
         const res = await this.fetchRetry(url, requestOpts);