Add Context.ai Integration (#196)

* Added Context.ai Integration

* update Context.ai description

* Updated tag and license

* added License to Table of Contents

integrations/context-ai.md

@@ -0,0 +1,106 @@
+---
+layout: integration
+name: Context AI
+description: A component to log conversations for analytics by Context.ai - built for Haystack 2.0.
+authors:
+    - name: Alec Barber
+      socials:
+        github: BarberAlec
+        linkedin: https://www.linkedin.com/in/alec-barber/
+    - name: Alex Gamble
+      socials:
+        github: agamble
+        linkedin: https://www.linkedin.com/in/alex-gamble-13682086/
+    - name: Henry Scott-Green
+      socials:
+        linkedin: https://www.linkedin.com/in/hcscottgreen/
+    - name: Amishapriya Singh
+      socials:
+        github: amisha29sh
+        linkedin: https://www.linkedin.com/in/amisha29/
+pypi: https://pypi.org/project/context-haystack/
+repo: https://github.com/contextco/context-haystack
+type: Monitoring Tool
+report_issue: https://github.com/contextco/context-haystack/issues
+logo: /logos/context.svg
+version: Haystack 2.0
+toc: true
+---
+### **Table of Contents**
+- [Overview](#overview)
+- [Installation](#installation)
+- [Usage](#usage)
+- [License](#license)
+
+## Overview
+[Context.ai](https://context.ai)  is an evaluations and analytics tool for products powered by LLMs.
+
+With Context.ai, you can understand how your users are interacting with natural language interfaces. This helps you know where your customers are having great experiences, but also proactively detect potential areas of improvement. You can test the performance impact of changes before you ship them to production with evaluations, and can identify where inappropriate conversations taking place.
+
+Login to [Context Dashboard](https://with.context.ai) to create a token and see your analytics.
+
+## Installation
+
+```bash
+pip install --upgrade context-haystack
+```
+
+## Usage
+### Components
+The `ContextAIAnalytics` component allows you to seamlessly integrate with Context.ai, uploading your messages to the Context AI platform.
+
+When running your pipeline you must include `thread_id` in the parameters where each unique `thread_id` identifies a conversation. You can optionally include `metadata` with `user_id` and `model` reserved for special analytics. 
+
+Use an instance of the `ContextAIAnalytics` component at each stage of your pipeline where you wish to log a message. In the example below the output of the `prompt_builder` and the `llm` components are captured.
+
+### Example
+```python
+import uuid
+import os
+
+from haystack.components.generators.chat import OpenAIChatGenerator
+from haystack.components.builders import DynamicChatPromptBuilder
+from haystack import Pipeline
+from haystack.dataclasses import ChatMessage
+
+from context_haystack.context import ContextAIAnalytics
+
+
+model = "gpt-3.5-turbo"
+os.environ["GETCONTEXT_TOKEN"] = "GETCONTEXT_TOKEN"
+os.environ["OPENAI_API_KEY"] = "OPENAI_API_KEY"
+
+prompt_builder = DynamicChatPromptBuilder()
+llm = OpenAIChatGenerator(model=model)
+prompt_analytics = ContextAIAnalytics()
+assistant_analytics = ContextAIAnalytics()
+
+pipe = Pipeline()
+pipe.add_component("prompt_builder", prompt_builder)
+pipe.add_component("llm", llm)
+pipe.add_component("prompt_analytics", prompt_analytics)
+pipe.add_component("assistant_analytics", assistant_analytics)
+
+pipe.connect("prompt_builder.prompt", "llm.messages")
+pipe.connect("prompt_builder.prompt", "prompt_analytics")
+pipe.connect("llm.replies", "assistant_analytics")
+
+# thread_id is unqiue to each conversation
+context_parameters = {"thread_id": uuid.uuid4(), "metadata": {"model": model, "user_id": "1234"}}
+location = "Berlin"
+messages = [ChatMessage.from_system("Always respond in German even if some input data is in other languages."),
+            ChatMessage.from_user("Tell me about {{location}}")]
+
+response = pipe.run(
+    data={
+        "prompt_builder": {"template_variables":{"location": location}, "prompt_source": messages},
+        "prompt_analytics": context_parameters,
+        "assistant_analytics": context_parameters,
+    }
+)
+
+print(response)
+```
+
+## License
+`context-haystack` is distributed under the terms of the [Apache-2.0](https://spdx.org/licenses/Apache-2.0.html) license.