Frequently Asked Questions

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Statsig FAQs
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GENERAL

How Can We Ensure Initial User Sessions Have Values in Statsig?

Date of slack thread: 6/17/24

Anonymous: Hello! I’m hoping for some guidance on how to avoid initial user sessions having no values. From here:

In practice (Unless an additional update call is made), this means that for the very first session of a given user, there will be no values, and not until the next session will the cache have values.

If we want initial sessions to have values, is there a workaround we can use (like prefetching users?) or do we need to move to bootstrapping values?

tore (Statsig): If you want everyone to have up-to-date values on every session, you should use the asynchronous initialization, not the synchronous initialization.

tore (Statsig): (Prefetch + cache = complicated way of doing async initialization)

Anonymous: Gotcha, ok! So if we have a SPA that grabs the current user from graphql, we could read in that user and call await myStatsigClient.updateUserAsync(user); and in theory we should be good to go?

tore (Statsig): Bootstrapping is always suggested as the very best integration - most up-to-date values, no async network request to fetch them. But it is more complicated to set up.

tore (Statsig): Yup, as long as you call the initializeAsync and updateUserAsync methods and wait for them, you’ll get the most up-to-date values (provided the network request is successful).

Anonymous: Gotcha, thank you!

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Why the best build with us

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Brex Brex
Notion Notion
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Ancestry Ancestry
At OpenAI, we want to iterate as fast as possible. Statsig enables us to grow, scale, and learn efficiently. Integrating experimentation with product analytics and feature flagging has been crucial for quickly understanding and addressing our users' top priorities.
OpenAI
Dave Cummings
Engineering Manager, ChatGPT
Brex's mission is to help businesses move fast. Statsig is now helping our engineers move fast. It has been a game changer to automate the manual lift typical to running experiments and has helped product teams ship the right features to their users quickly.
Brex
Karandeep Anand
President
At Notion, we're continuously learning what our users value and want every team to run experiments to learn more. It’s also critical to maintain speed as a habit. Statsig's experimentation platform enables both this speed and learning for us.
Notion
Mengying Li
Data Science Manager
We evaluated Optimizely, LaunchDarkly, Split, and Eppo, but ultimately selected Statsig due to its comprehensive end-to-end integration. We wanted a complete solution rather than a partial one, including everything from the stats engine to data ingestion.
SoundCloud
Don Browning
SVP, Data & Platform Engineering
We only had so many analysts. Statsig provided the necessary tools to remove the bottleneck. I know that we are able to impact our key business metrics in a positive way with Statsig. We are definitely heading in the right direction with Statsig.
Ancestry
Partha Sarathi
Director of Engineering
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