Events not being fired to Mixpanel

[luisfuertes]

I have mixpanel configured without errors, but cant see my events or my users in Mixpanel dashboard.

To install i only write: yarn add react-native-mixpanel and npx react-native run-android

My versions:

    "react": "16.11.0",
    "react-native": "0.62.2",
    "react-native-mixpanel": "^1.2.0",

My App.js

import Mixpanel from 'react-native-mixpanel'
Mixpanel.sharedInstanceWithToken(MIXPANEL_TOKEN)

class App extends Component {
}

When user register:

      Mixpanel.createAlias(userId)
      Mixpanel.setOnce({ $email: email, Created: new Date().toISOString() })

When load auth data:

    Mixpanel.identify(userId)
    Mixpanel.track('event test')

Anybody return error, but in Mixpanel panel i cant see anything.

And is token, true? Not api key. To init app.

And in live preview:

It should show my "track" events in "Live view data" in dashborad, is correct? I cant see my data

[luisfuertes]

Ok in server side it solved adding api_host:

mixpanel.init("YOUR_TOKEN", { "api_host": "https://api-eu.mixpanel.com" }, "");

But how can i set api_host with react-native-mixpanel?

[luisfuertes]

Ok, in android i had to add this to the manifest and it works

<meta-data android:name="com.mixpanel.android.MPConfig.EventsEndpoint"
           android:value="https://api-eu.mixpanel.com/track" />
<meta-data android:name="com.mixpanel.android.MPConfig.PeopleEndpoint"
           android:value="https://api-eu.mixpanel.com/engage" />
<meta-data android:name="com.mixpanel.android.MPConfig.GroupsEndpoint"
           android:value="https://api-eu.mixpanel.com/groups" />

And on iOS y try to send url with launchOptions but it doesnt work.

Mixpanel.sharedInstanceWithToken(MIXPANEL_TOKEN, false, false, false, { serverURL: 'https://api-eu.mixpanel.com' })

Any idea how can i fix it on iOS? Docs in Objective-c says this:

self.mixpanel = [Mixpanel sharedInstanceWithToken:@"MIXPANEL_TOKEN" launchOptions:launchOptions];
self.mixpanel.serverURL = @"https://api-eu.mixpanel.com";

But i dont know how can i add that.

PD: This isnt work

Mixpanel.serverURL = 'https://api-eu.mixpanel.com'

[tibbus]

I tried your fix for Android, but it is still not working for me.

[luisfuertes]

@tibbus Your mixpanel server url is in EU?

[tibbus]

Yes, I got from the panel: https://api-eu.mixpanel.com

[luisfuertes]

meta-data are inside "application" in mannifest?

    <application
      android:name=".MainApplication"
      ...
      android:theme="@style/AppTheme">

      <meta-data android:name="com.mixpanel.android.MPConfig.EventsEndpoint"
                android:value="https://api-eu.mixpanel.com/track" />
      <meta-data android:name="com.mixpanel.android.MPConfig.PeopleEndpoint"
                android:value="https://api-eu.mixpanel.com/engage" />
      <meta-data android:name="com.mixpanel.android.MPConfig.GroupsEndpoint"
                android:value="https://api-eu.mixpanel.com/groups" />

[luisfuertes]

For iOS add instance.serverURL = @"https://api-eu.mixpanel.com"; in node_modules/react-native-mixpanel/RNMixpanel/RNMixpanel.m and it works

// sharedInstanceWithToken
RCT_EXPORT_METHOD(sharedInstanceWithToken:(NSString *)apiToken
                  optOutTrackingByDefault:(BOOL)optOutTrackingByDefault
                  trackCrashes:(BOOL)trackCrashes
                  automaticPushTracking:(BOOL)automaticPushTracking
                  launchOptions:(nullable NSDictionary *)launchOptions
                  resolve:(RCTPromiseResolveBlock)resolve
                  reject:(RCTPromiseRejectBlock)reject) {
    @synchronized(self) {
        if (instances != nil && [instances objectForKey:apiToken] != nil) {
            resolve(nil);
            return;
        }

        Mixpanel *instance = [Mixpanel sharedInstanceWithToken:apiToken
                                                 launchOptions:launchOptions
                                                  trackCrashes:trackCrashes
                                         automaticPushTracking:automaticPushTracking
                                       optOutTrackingByDefault:optOutTrackingByDefault];
        
        instance.serverURL = @"https://api-eu.mixpanel.com";

        // copy instances and add the new instance.  then reassign instances
        NSMutableDictionary *newInstances = [NSMutableDictionary dictionaryWithDictionary:instances];
        [newInstances setObject:instance forKey:apiToken];
        instances = [NSDictionary dictionaryWithDictionary:newInstances];
        [instance applicationDidBecomeActive:nil];
        resolve(nil);
    }
}

I will try to submit a PR with serverURL as param, but I think there are no active collaborators

[luisfuertes]

Another solution (more permanent, since you don't have to add every time you do an npm install) is to create an instance in our AppDelegate.m.

First add the import (before #if DEBUG): #import "Mixpanel / Mixpanel.h"

and in didFinishLaunchingWithOptions:

  Mixpanel *mixpanel = [Mixpanel sharedInstanceWithToken:@"MIXPANEL_TOKEN"];
  mixpanel.serverURL = @"https://api-eu.mixpanel.com";

[raburski]

I have raised a small quickfix.
Once/if this is merged README could be updated to surface this functionality.
#253

[davide-scalzo]

Merged!

[raburski]

@davodesign84 readme updated: #254
Would that close this issue?

[luisfuertes]

Yes thanks.

What version is this upgrade available in?

[davide-scalzo]

On the latest npm version 1.2.2

[luisfuertes]

great thx