fix: Safely add livestream host

frontend/src/lib/utils/apiHost.ts

@@ -1,3 +1,5 @@
+import { getAppContext } from './getAppContext'
+
 export function apiHostOrigin(): string {
     const appOrigin = window.location.origin
     if (appOrigin === 'https://us.posthog.com') {
@@ -10,6 +12,8 @@ export function apiHostOrigin(): string {
 
 export function liveEventsHostOrigin(): string | null {
     const appOrigin = window.location.origin
+    const appContext = getAppContext()
+
     if (appOrigin === 'https://us.posthog.com') {
         return 'https://live.us.posthog.com'
     } else if (appOrigin === 'https://eu.posthog.com') {
@@ -20,5 +24,5 @@ export function liveEventsHostOrigin(): string | null {
         return 'http://localhost:6006'
     }
 
-    return 'http://localhost:8666'
+    return appContext?.livestream_host || 'http://localhost:8666'
 }

frontend/src/types.ts

@@ -3470,6 +3470,7 @@ export interface AppContext {
     year_in_hog_url?: string
     /** Support flow aid: a staff-only list of users who may be impersonated to access this resource. */
     suggested_users_with_access?: UserBasicType[]
+    livestream_host?: string
 }
 
 export type StoredMetricMathOperations = 'max' | 'min' | 'sum'

posthog/settings/web.py

@@ -419,3 +419,6 @@ def static_varies_origin(headers, path, url):
 # Teams allowed to modify transformation code (comma-separated list of team IDs),
 # keep in sync with client-side feature flag HOG_TRANSFORMATIONS_CUSTOM_HOG_ENABLED
 HOG_TRANSFORMATIONS_CUSTOM_ENABLED_TEAMS = get_list(os.getenv("HOG_TRANSFORMATIONS_CUSTOM_ENABLED_TEAMS", ""))
+
+# Passed to the frontend for the web app to know where to connect to
+LIVESTREAM_HOST = get_from_env("LIVESTREAM_HOST", "")

posthog/test/__snapshots__/test_feature_flag.ambr

@@ -2069,7 +2069,7 @@
   FROM "posthog_cohort"
   INNER JOIN "posthog_team" ON ("posthog_cohort"."team_id" = "posthog_team"."id")
   WHERE (NOT "posthog_cohort"."deleted"
-         AND "posthog_team"."project_id" = 525)
+         AND "posthog_team"."project_id" = 528)
   '''
 # ---
 # name: TestFeatureFlagMatcher.test_numeric_operator_with_cohorts_and_nested_cohorts.1
@@ -2115,7 +2115,7 @@
          "posthog_grouptypemapping"."name_singular",
          "posthog_grouptypemapping"."name_plural"
   FROM "posthog_grouptypemapping"
-  WHERE "posthog_grouptypemapping"."project_id" = 525
+  WHERE "posthog_grouptypemapping"."project_id" = 528
   '''
 # ---
 # name: TestFeatureFlagMatcher.test_numeric_operator_with_groups_and_person_flags.1

posthog/utils.py

@@ -412,6 +412,7 @@ def render_template(
             "switched_team": getattr(request, "switched_team", None),
             "suggested_users_with_access": getattr(request, "suggested_users_with_access", None),
             "commit_sha": context["git_rev"],
+            "livestream_host": settings.LIVESTREAM_HOST,
             **posthog_app_context,
         }