Adds a dynamic audience field, pulls down all customaudiences as choices

packages/destination-actions/src/destinations/facebook-custom-audiences/fbca-operations.ts

@@ -1,4 +1,4 @@
-import { RequestClient } from '@segment/actions-core'
+import { DynamicFieldItem, DynamicFieldError, RequestClient } from '@segment/actions-core'
 
 const FACEBOOK_API_VERSION = 'v20.0'
 
@@ -7,6 +7,19 @@ interface AudienceCreationResponse {
   message: string
 }
 
+interface GetAllAudienceResponse {
+  data: {
+    id: string
+    name: string
+  }[]
+  paging: {
+    cursors: {
+      before: string
+      after: string
+    }
+    next: string
+  }
+}
 export default class FacebookClient {
   request: RequestClient
   baseUrl: string
@@ -15,7 +28,7 @@ export default class FacebookClient {
   constructor(request: RequestClient, adAccountId: string) {
     this.request = request
     this.baseUrl = `https://graph.facebook.com/${FACEBOOK_API_VERSION}/`
-    this.adAccountId = adAccountId
+    this.adAccountId = this.formatAdAccount(adAccountId)
   }
 
   createAudience = async (name: string) => {
@@ -29,4 +42,25 @@ export default class FacebookClient {
       }
     })
   }
+
+  getAllAudiences = async (): Promise<[DynamicFieldItem[], DynamicFieldError | undefined]> => {
+    const { data } = await this.request<GetAllAudienceResponse>(
+      `${this.baseUrl}${this.adAccountId}/customaudiences?fields=id,name`
+    )
+
+    // console.log('data.paging', data.paging)
+    const choices = data.data.map(({ id, name }) => ({
+      value: id,
+      label: name
+    }))
+
+    return [choices, undefined]
+  }
+
+  private formatAdAccount(adAccountId: string) {
+    if (adAccountId.startsWith('act_')) {
+      return adAccountId
+    }
+    return `act_${adAccountId}`
+  }
 }

packages/destination-actions/src/destinations/facebook-custom-audiences/sync/index.ts

@@ -17,6 +17,23 @@ const action: ActionDefinition<Settings, Payload> = {
           label: 'Audience Name',
           description: 'The name of the audience in Facebook.',
           default: 'TODO: Model Name by default'
+        },
+        existingAudienceId: {
+          type: 'string',
+          label: 'Existing Audience ID',
+          description: 'The ID of the audience in Facebook.',
+          dynamic: async (request, { settings }) => {
+            const fbClient = new FacebookClient(request, settings.adAccountId)
+            const [choices, error] = await fbClient.getAllAudiences()
+
+            if (error) {
+              return { error, choices: [] }
+            }
+
+            return {
+              choices
+            }
+          }
         }
       },
       outputTypes: {