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  3. Test Ad Injection Locally in Gradio

How-to guide

How to Test Ad Injection Locally in Gradio

This guide shows how to test ad injection locally in a Gradio app, the goal being to run injection against a local/non-SSL server during development. It builds on the Monetzly gRPC service (no Python SDK exists for this stack), so the approach is specific to how Gradio produces and streams responses.

Overview

You can develop ad injection for a Gradio app locally before going to production. Point the SDK at a local ad-server address and turn SSL off; everything else — the injection call, session context, fallback — behaves the same as production.

This lets you verify that your Gradio stream flows through injection and reaches the client correctly without needing production credentials wired up.

Gradio apps are usually built for model demos, chat interfaces, and shareable AI prototypes, so test ad injection locally typically comes up while a user is mid-conversation, the moment where monetization has to be additive rather than disruptive.

How this works on Gradio

Gradio is Python. Drive the shipped tps_alter.proto gRPC service (or a Node sidecar) and yield injected tokens from a gr.ChatInterface generator fn for streaming output. Confirm the non-JS auth handshake before publishing.

Since Gradio is a Python stack with no official SDK, this task runs through the shipped tps_alter.proto gRPC service (or a Node sidecar); the auth handshake for a direct client is still TODO_VERIFY.

Steps

  1. Set the server address to your local host (e.g. localhost:8080) and disable SSL.
  2. Run your Gradio app and send a test prompt through the injection path.
  3. Confirm tokens stream to the client, then switch to your production host and SSL for release.

Integration snippet

TODO_VERIFY: Gradio uses the gRPC proto path, confirm the auth handshake with Monetzly before relying on this in production.
# No Python SDK. Generate stubs from tps_alter.proto and drive ProcessStream
# (see the FastAPI page for the full bidi loop), then in a streaming chat fn:
#
#   async def respond(message, history):
#       out = ""
#       async for token in inject(llm_tokens, message, session_id, api_key):
#           out += token
#           yield out
#
# TODO_VERIFY: auth handshake (API key placement) for a direct gRPC client.

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