mirror of https://github.com/dapr/docs.git
Merge branch 'v1.16' into docs/max-body-size
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Mike Nguyen
GitHub
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30e755a85e
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@ -14,7 +14,12 @@ Dapr's conversation API reduces the complexity of securely and reliably interact
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<img src="/images/conversation-overview.png" width=800 alt="Diagram showing the flow of a user's app communicating with Dapr's LLM components.">
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In additon to enabling critical performance and security functionality (like [prompt caching]({{% ref "#prompt-caching" %}}) and [PII scrubbing]({{% ref "#personally-identifiable-information-pii-obfuscation" %}})), you can also pair the conversation API with Dapr functionalities, like:
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In addition to enabling critical performance and security functionality (like [prompt caching]({{% ref "#prompt-caching" %}}) and [PII scrubbing]({{% ref "#personally-identifiable-information-pii-obfuscation" %}})), the conversation API also provides:
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- **Tool calling capabilities** that allow LLMs to interact with external functions and APIs, enabling more sophisticated AI applications
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- **OpenAI-compatible interface** for seamless integration with existing AI workflows and tools
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You can also pair the conversation API with Dapr functionalities, like:
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- Resiliency circuit breakers and retries to circumvent limit and token errors, or
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- Middleware to authenticate requests coming to and from the LLM
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@ -45,6 +50,17 @@ The PII scrubber obfuscates the following user information:
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- SHA-256 hex
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- MD5 hex
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### Tool calling support
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The conversation API supports advanced tool calling capabilities that allow LLMs to interact with external functions and APIs. This enables you to build sophisticated AI applications that can:
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- Execute custom functions based on user requests
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- Integrate with external services and databases
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- Provide dynamic, context-aware responses
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- Create multi-step workflows and automation
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Tool calling follows [OpenAI's function calling format](https://platform.openai.com/docs/guides/function-calling), making it easy to integrate with existing AI development workflows and tools.
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## Demo
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Watch the demo presented during [Diagrid's Dapr v1.15 celebration](https://www.diagrid.io/videos/dapr-1-15-deep-dive) to see how the conversation API works using the .NET SDK.
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@ -17,8 +17,7 @@ description: "List of current alpha and beta APIs"
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| Cryptography | [Crypto proto](https://github.com/dapr/dapr/blob/5aba3c9aa4ea9b3f388df125f9c66495b43c5c9e/dapr/proto/runtime/v1/dapr.proto#L118) | `v1.0-alpha1/crypto` | The cryptography API enables you to perform **high level** cryptography operations for encrypting and decrypting messages. | [Cryptography API]({{% ref "cryptography-overview.md" %}}) | v1.11 |
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| Jobs | [Jobs proto](https://github.com/dapr/dapr/blob/master/dapr/proto/runtime/v1/dapr.proto#L212-219) | `v1.0-alpha1/jobs` | The jobs API enables you to schedule and orchestrate jobs. | [Jobs API]({{% ref "jobs-overview.md" %}}) | v1.14 |
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| Streaming Subscription | [Streaming Subscription proto](https://github.com/dapr/dapr/blob/310c83140b2f0c3cb7d2bef19624df88af3e8e0a/dapr/proto/runtime/v1/dapr.proto#L454) | N/A | Subscription is defined in the application code. Streaming subscriptions are dynamic, meaning they allow for adding or removing subscriptions at runtime. | [Streaming Subscription API]({{% ref "subscription-methods/#streaming-subscriptions" %}}) | v1.14 |
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| Conversation | [Conversation proto](https://github.com/dapr/dapr/blob/master/dapr/proto/runtime/v1/dapr.proto#L221-222) | `v1.0-alpha1/conversation` | Converse between different large language models using the conversation API. | [Conversation API]({{% ref "conversation-overview.md" %}}) | v1.15 |
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| Conversation | [Conversation proto](https://github.com/dapr/dapr/blob/master/dapr/proto/runtime/v1/dapr.proto#L226) | `v1.0-alpha2/conversation` | Converse between different large language models using the conversation API. | [Conversation API]({{% ref "conversation-overview.md" %}}) | v1.15 |
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## Beta APIs
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@ -10,14 +10,16 @@ weight: 1400
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The conversation API is currently in [alpha]({{% ref "certification-lifecycle.md#certification-levels" %}}).
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{{% /alert %}}
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Dapr provides an API to interact with Large Language Models (LLMs) and enables critical performance and security functionality with features like prompt caching and PII data obfuscation.
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Dapr provides an API to interact with Large Language Models (LLMs) and enables critical performance and security functionality with features like prompt caching, PII data obfuscation, and tool calling capabilities.
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Tool calling follow's OpenAI's function calling format, making it easy to integrate with existing AI development workflows and tools.
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## Converse
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This endpoint lets you converse with LLMs.
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This endpoint lets you converse with LLMs using the Alpha2 version of the API, which provides enhanced tool calling support and alignment with OpenAI's interface.
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```
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POST http://localhost:<daprPort>/v1.0-alpha1/conversation/<llm-name>/converse
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POST http://localhost:<daprPort>/v1.0-alpha2/conversation/<llm-name>/converse
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```
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### URL parameters
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@ -30,34 +32,117 @@ POST http://localhost:<daprPort>/v1.0-alpha1/conversation/<llm-name>/converse
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| Field | Description |
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| --------- | ----------- |
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| `name` | The name of the conversation component. Required |
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| `contextId` | The ID of an existing chat (like in ChatGPT). Optional |
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| `inputs` | Inputs for the conversation. Multiple inputs at one time are supported. Required |
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| `cacheTTL` | A time-to-live value for a prompt cache to expire. Uses Golang duration format. Optional |
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| `scrubPII` | A boolean value to enable obfuscation of sensitive information returning from the LLM. Set this value if all PII (across contents) in the request needs to be scrubbed. Optional |
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| `temperature` | A float value to control the temperature of the model. Used to optimize for consistency and creativity. Optional |
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| `parameters` | Parameters for all custom fields. Optional |
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| `metadata` | [Metadata](#metadata) passed to conversation components. Optional |
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| `scrubPii` | A boolean value to enable obfuscation of sensitive information returning from the LLM. Optional |
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| `temperature` | A float value to control the temperature of the model. Used to optimize for consistency (0) or creativity (1). Optional |
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| `tools` | Tools register the tools available to be used by the LLM during the conversation. Optional |
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| `toolChoice` | Controls which (if any) tool is called by the model. Values: `auto`, `required`, or specific tool name. Defaults to `auto` if tools are present. Optional |
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#### Input body
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| Field | Description |
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| --------- | ----------- |
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| `content` | The message content to send to the LLM. Required |
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| `role` | The role for the LLM to assume. Possible values: 'user', 'tool', 'assistant' |
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| `scrubPII` | A boolean value to enable obfuscation of sensitive information present in the content field. Set this value if PII for this specific content needs to be scrubbed exclusively. Optional |
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| `messages` | Array of conversation messages. Required |
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| `scrubPii` | A boolean value to enable obfuscation of sensitive information present in the content field. Optional |
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### Request content example
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#### Message types
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The API supports different message types:
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- **`ofDeveloper`**: Developer role messages with optional name and content
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- **`ofSystem`**: System role messages with optional name and content
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- **`ofUser`**: User role messages with optional name and content
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- **`ofAssistant`**: Assistant role messages with optional name, content, and tool calls
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- **`ofTool`**: Tool role messages with tool ID, name, and content
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#### Tool calling
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Tools can be defined using the `tools` field with function definitions:
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| Field | Description |
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| --------- | ----------- |
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| `function.name` | The name of the function to be called. Required |
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| `function.description` | A description of what the function does. Optional |
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| `function.parameters` | JSON Schema object describing the function parameters. Optional |
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### Request content examples
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#### Basic conversation
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```json
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REQUEST = {
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"inputs": [
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"name": "openai",
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"inputs": [{
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"messages": [{
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"of_user": {
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"content": [{
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"text": "What is Dapr?"
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}]
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}
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}]
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}],
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"parameters": {},
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"metadata": {}
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}
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```
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#### Conversation with tool calling
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```json
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{
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"content": "What is Dapr?",
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"role": "user", // Optional
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"scrubPII": "true", // Optional. Will obfuscate any sensitive information found in the content field
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"name": "openai",
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"inputs": [{
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"messages": [{
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"of_user": {
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"content": [{
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"text": "What is the weather like in San Francisco in celsius?"
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}]
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}
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}],
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"scrub_pii": false
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}],
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"parameters": {
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"max_tokens": {
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"@type": "type.googleapis.com/google.protobuf.Int64Value",
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"value": "100"
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},
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],
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"cacheTTL": "10m", // Optional
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"scrubPII": "true", // Optional. Will obfuscate any sensitive information returning from the LLM
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"temperature": 0.5 // Optional. Optimizes for consistency (0) or creativity (1)
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"model": {
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"@type": "type.googleapis.com/google.protobuf.StringValue",
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"value": "claude-3-5-sonnet-20240620"
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}
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},
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"metadata": {
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"api_key": "test-key",
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"version": "1.0"
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},
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"scrub_pii": false,
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"temperature": 0.7,
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"tools": [{
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"function": {
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"name": "get_weather",
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"description": "Get the current weather for a location",
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"parameters": {
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"type": "object",
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"properties": {
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"location": {
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"type": "string",
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"description": "The city and state, e.g. San Francisco, CA"
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},
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"unit": {
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"type": "string",
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"enum": ["celsius", "fahrenheit"],
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"description": "The temperature unit to use"
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}
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},
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"required": ["location"]
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}
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}
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}],
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"tool_choice": "auto"
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}
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```
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@ -71,21 +156,62 @@ Code | Description
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### Response content
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#### Basic conversation response
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```json
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RESPONSE = {
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"outputs": {
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{
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"result": "Dapr is distribution application runtime ...",
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"parameters": {},
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},
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{
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"result": "Dapr can help developers ...",
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"parameters": {},
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"outputs": [{
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"choices": [{
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"finish_reason": "stop",
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"index": 0,
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"message": {
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"content": "Dapr is a distributed application runtime that makes it easy for developers to build resilient, stateless and stateful applications that run on the cloud and edge.",
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"tool_calls": []
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}
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},
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}]
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}]
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}
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```
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#### Tool calling response
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```json
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{
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"outputs": [{
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"choices": [{
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"finish_reason": "tool_calls",
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"index": 0,
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"message": {
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"content": null,
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"tool_calls": [{
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"id": "call_123",
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"function": {
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"name": "get_weather",
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"arguments": "{\"location\": \"San Francisco, CA\", \"unit\": \"celsius\"}"
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}
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}]
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}
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}]
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}]
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}
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```
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### Tool choice options
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The `tool_choice` is an optional parameter that controls how the model can use available tools:
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- **`auto`**: The model can pick between generating a message or calling one or more tools (default when tools are present)
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- **`required`**: Requires one or more functions to be called
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- **`{tool_name}`**: Forces the model to call a specific tool by name
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## Legacy Alpha1 API
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The previous Alpha1 version of the API is still supported for backward compatibility but is deprecated. For new implementations, use the Alpha2 version described above.
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```
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POST http://localhost:<daprPort>/v1.0-alpha1/conversation/<llm-name>/converse
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```
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## Next steps
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- [Conversation API overview]({{% ref conversation-overview.md %}})
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