Unhandled JS Exception: undefined is not an object (evaluating 'e.construct...

[m-vdb]

OS:

• Windows
• MacOS
• Linux

Platform:

• iOS
• Android

Output of node -v && npm -v && npm ls --prod --depth=0

v6.11.2
5.3.0
myproject@0.8.2 /Users/mvdb/Sources/myproject
├── lodash@4.17.4
├── moment@2.19.2
├── prop-types@15.6.0
├── qs@6.5.1
├── react@16.2.0
├── react-instantsearch@4.2.0
├── react-native@0.52.2
├── react-native-android-notification-permission@1.0.1
├── react-native-app-settings@2.0.0
├── react-native-calendar-strip@1.2.4
├── react-native-config@0.11.5
├── react-native-device-info@0.12.1
├── react-native-fabric@0.5.1
├── react-native-fbsdk@0.6.3
├── react-native-infinite-scroll-view@0.4.3
├── react-native-message-bar@2.0.6
├── react-native-modal-datetime-picker@4.13.0
├── react-native-parsed-text@0.0.20
├── react-native-push-notification@3.0.2
├── react-native-router-flux@4.0.0-beta.24
├── react-native-sentry@0.30.2
├── react-native-snap-carousel@3.4.0
├── react-native-splash-screen@3.0.6
├── react-native-store-view@3.1.0
├── react-native-swipeout@2.3.1
├── react-native-vector-icons@4.4.2
└── realm@1.13.0

Config:

Sentry.config(Config.SENTRY_DSN, {}).install()

---

I have following issue:

When calling Sentry.config() with an undefined dsn, it will crash with the Unhandled JS Exception: undefined is not an object (evaluating 'e.construct.... It is not an issue in debug configuration, since it is easy to read the stacktrace, but in release configuration it is a bit cryptic, since the backtrace is totally minified and it is hard to know where it comes from:

Unhandled JS Exception: undefined is not an object (evaluating 'e.construct..., stack:
config@307:921
<unknown>@305:6588
d@2:755
<unknown>@12:55
d@2:755
n@2:326
global code@939:8

I was able to narrow it down to the call to config() here by using a stack beautifier. (I spent some time trying to figure out why my build failed on TestFlight...).

It is rather easy to fix, we could just check for null and undefined too.

Steps to reproduce:
Sentry.config(undefined, {}).install()

Actual result:
Unhandled JS Exception: undefined is not an object (evaluating 'dsn.construct...

Expected result:
Sentry: A DSN must be provided

[m-vdb]

thanks!