Google Chat
Google Chat
Start with meaning, then move to detail.
This lesson explains Google Chat as part of Hermes internals and extension points. You will learn what it does, when it matters, and the smallest safe test that proves it works.
If you are new, do not memorize names. Focus on three questions: what problem does this solve, what access does it need, and how can you verify the result?
For practice, inspect the first example, identify its effects, run it on test data, and compare the result with the source claim.
For advanced readers, inspect Overview, Step 1: Create or pick a GCP project, Step 2: Enable two APIs, then verify failure modes and version compatibility.
Know Python, Git, and basic project structure before changing code.
A clear outcome before you read.
- Understand Google Chat without assumed prior knowledge.
- Separate the source description from what still needs testing in your environment.
- Read the first command and identify its inputs and outputs before copying it.
Set up Hermes Agent as a Google Chat bot using Cloud Pub/Sub
What does the source say, and in what order?
- 01Overview
Start here to understand the core idea or structure.
- 02Step 1: Create or pick a GCP project
Read this after the foundation, then connect it to the previous step.
- 03Step 2: Enable two APIs
Read this after the foundation, then connect it to the previous step.
- 04Step 3: Create a Service Account
Read this after the foundation, then connect it to the previous step.
- 05Step 4: Create the Pub/Sub topic and subscription
Read this after the foundation, then connect it to the previous step.
- 06Step 5: IAM binding on the topic (critical)
Read this after the foundation, then connect it to the previous step.
- 07Step 6: IAM binding on the subscription
Read this after the foundation, then connect it to the previous step.
- 08Step 7: Configure the Chat app
Read this after the foundation, then connect it to the previous step.
- 09Step 8: Install the bot in a test space
Read this after the foundation, then connect it to the previous step.
- 10Step 9: Configure Hermes
Finish here to verify the result and special cases.
Copy only after you understand the effect.
# Required
GOOGLE_CHAT_PROJECT_ID=my-chat-bot-123
GOOGLE_CHAT_SUBSCRIPTION_NAME=projects/my-chat-bot-123/subscriptions/hermes-chat-events-sub
GOOGLE_CHAT_SERVICE_ACCOUNT_JSON=/home/you/.hermes/google-chat-sa.json
# Authorization — paste the emails of people allowed to talk to the bot
GOOGLE_CHAT_ALLOWED_USERS=you@yourdomain.com,coworker@yourdomain.com
# Optional
GOOGLE_CHAT_HOME_CHANNEL=spaces/AAAA... # default delivery destination for cron jobs
GOOGLE_CHAT_MAX_MESSAGES=1 # Pub/Sub FlowControl; 1 serializes commands per session
GOOGLE_CHAT_MAX_BYTES=16777216 python -m plugins.platforms.google_chat.oauth --install-depshermes gatewayRead the first command and identify its inputs and outputs before copying it.
Match every command to your installed Hermes version, review the files and accounts it can reach, and use non-sensitive data for the first test. If this explanation differs from the source, the official source wins.