use crate::llm::actions::{
client_trait::{Client, ClientActionResult},
protocol_trait::Protocol,
ActionDefinition, Parameter, ParameterDefinition,
};
use crate::protocol::EventType;
use crate::state::app_state::AppState;
use anyhow::{Context, Result};
use serde_json::json;
use std::sync::LazyLock;
pub static JSONRPC_CLIENT_CONNECTED_EVENT: LazyLock<EventType> = LazyLock::new(|| {
EventType::new(
"jsonrpc_connected",
"JSON-RPC client initialized and ready to send requests",
json!({"type": "send_jsonrpc_request", "method": "add", "params": [5, 3], "id": 1}),
)
.with_parameters(vec![Parameter {
name: "endpoint".to_string(),
type_hint: "string".to_string(),
description: "JSON-RPC endpoint URL".to_string(),
required: true,
}])
});
pub static JSONRPC_CLIENT_RESPONSE_RECEIVED_EVENT: LazyLock<EventType> = LazyLock::new(|| {
EventType::new(
"jsonrpc_response_received",
"JSON-RPC response received from server",
json!({"type": "send_jsonrpc_request", "method": "getStatus", "id": 2}),
)
.with_parameters(vec![
Parameter {
name: "id".to_string(),
type_hint: "number | string | null".to_string(),
description: "Request ID matching the original request".to_string(),
required: false,
},
Parameter {
name: "result".to_string(),
type_hint: "any".to_string(),
description: "Result value (if success)".to_string(),
required: false,
},
Parameter {
name: "error".to_string(),
type_hint: "object".to_string(),
description: "Error object with code, message, and optional data (if error)"
.to_string(),
required: false,
},
])
});
pub struct JsonRpcClientProtocol;
impl JsonRpcClientProtocol {
pub fn new() -> Self {
Self
}
}
impl Protocol for JsonRpcClientProtocol {
fn get_startup_parameters(&self) -> Vec<ParameterDefinition> {
vec![ParameterDefinition {
name: "default_headers".to_string(),
description: "Default headers to include in all requests".to_string(),
type_hint: "object".to_string(),
required: false,
example: json!({
"Authorization": "Bearer token123",
"Content-Type": "application/json"
}),
default: None,
}]
}
fn get_async_actions(&self, _state: &AppState) -> Vec<ActionDefinition> {
vec![
ActionDefinition {
name: "send_jsonrpc_request".to_string(),
description: "Send a JSON-RPC 2.0 request to the server".to_string(),
parameters: vec![
Parameter {
name: "method".to_string(),
type_hint: "string".to_string(),
description: "JSON-RPC method name".to_string(),
required: true,
},
Parameter {
name: "params".to_string(),
type_hint: "array | object".to_string(),
description: "Method parameters (array or object)".to_string(),
required: false,
},
Parameter {
name: "id".to_string(),
type_hint: "number | string".to_string(),
description: "Request ID (omit for notification)".to_string(),
required: false,
},
],
example: json!({
"type": "send_jsonrpc_request",
"method": "add",
"params": [5, 3],
"id": 1
}),
log_template: None,
},
ActionDefinition {
name: "send_jsonrpc_batch".to_string(),
description: "Send a batch of JSON-RPC 2.0 requests".to_string(),
parameters: vec![Parameter {
name: "requests".to_string(),
type_hint: "array".to_string(),
description: "Array of JSON-RPC request objects".to_string(),
required: true,
}],
example: json!({
"type": "send_jsonrpc_batch",
"requests": [
{"method": "add", "params": [1, 2], "id": 1},
{"method": "multiply", "params": [3, 4], "id": 2}
]
}),
log_template: None,
},
ActionDefinition {
name: "disconnect".to_string(),
description: "Disconnect from the JSON-RPC server".to_string(),
parameters: vec![],
example: json!({
"type": "disconnect"
}),
log_template: None,
},
]
}
fn get_sync_actions(&self) -> Vec<ActionDefinition> {
vec![
ActionDefinition {
name: "wait_for_more".to_string(),
description:
"Do nothing and wait for the next JSON-RPC response. The correct answer \
when what arrived needs no follow-up -- without it the model has to \
invent an action it does not want."
.to_string(),
parameters: vec![],
example: json!({
"type": "wait_for_more"
}),
log_template: None,
},
ActionDefinition {
name: "send_jsonrpc_request".to_string(),
description: "Send another JSON-RPC request in response to received data"
.to_string(),
parameters: vec![
Parameter {
name: "method".to_string(),
type_hint: "string".to_string(),
description: "JSON-RPC method name".to_string(),
required: true,
},
Parameter {
name: "params".to_string(),
type_hint: "array | object".to_string(),
description: "Method parameters".to_string(),
required: false,
},
Parameter {
name: "id".to_string(),
type_hint: "number | string".to_string(),
description: "Request ID".to_string(),
required: false,
},
],
example: json!({
"type": "send_jsonrpc_request",
"method": "getStatus",
"id": 2
}),
log_template: None,
},
]
}
fn protocol_name(&self) -> &'static str {
"JSON-RPC"
}
fn get_event_types(&self) -> Vec<EventType> {
vec![
EventType::new(
"jsonrpc_connected",
"Triggered when JSON-RPC client is initialized",
json!({"type": "send_jsonrpc_request", "method": "add", "params": [5, 3], "id": 1}),
),
EventType::new(
"jsonrpc_response_received",
"Triggered when JSON-RPC client receives a response",
json!({"type": "send_jsonrpc_request", "method": "getStatus", "id": 2}),
),
]
}
fn stack_name(&self) -> &'static str {
"ETH>IP>TCP>HTTP>JSON-RPC"
}
fn keywords(&self) -> Vec<&'static str> {
vec!["jsonrpc", "json-rpc", "json rpc", "rpc"]
}
fn metadata(&self) -> crate::protocol::metadata::ProtocolMetadataV2 {
use crate::protocol::metadata::{DevelopmentState, ProtocolMetadataV2};
ProtocolMetadataV2::builder()
.state(DevelopmentState::Experimental)
.implementation("reqwest HTTP client with JSON-RPC 2.0 format")
.llm_control("Full control over RPC methods, parameters, batch requests")
.e2e_testing("Local JSON-RPC server or public JSON-RPC API")
.build()
}
fn description(&self) -> &'static str {
"JSON-RPC 2.0 client for making remote procedure calls"
}
fn example_prompt(&self) -> &'static str {
"Connect to JSON-RPC server at http://localhost:8080 and call method 'add' with params [5, 3]"
}
fn group_name(&self) -> &'static str {
"RPC"
}
fn get_startup_examples(&self) -> crate::llm::actions::StartupExamples {
use crate::llm::actions::StartupExamples;
use serde_json::json;
StartupExamples::new(
json!({
"type": "open_client",
"remote_addr": "http://localhost:8080",
"base_stack": "jsonrpc",
"instruction": "Call the 'add' method with params [5, 3] and report the result"
}),
json!({
"type": "open_client",
"remote_addr": "http://localhost:8080",
"base_stack": "jsonrpc",
"event_handlers": [{
"event_pattern": "jsonrpc_response_received",
"handler": {
"type": "script",
"language": "python",
"code": "<jsonrpc_client_handler>"
}
}]
}),
json!({
"type": "open_client",
"remote_addr": "http://localhost:8080",
"base_stack": "jsonrpc",
"event_handlers": [
{
"event_pattern": "jsonrpc_connected",
"handler": {
"type": "static",
"actions": [{
"type": "send_jsonrpc_request",
"method": "add",
"params": [5, 3],
"id": 1
}]
}
},
{
"event_pattern": "jsonrpc_response_received",
"handler": {
"type": "static",
"actions": [{
"type": "disconnect"
}]
}
}
]
}),
)
}
}
impl Client for JsonRpcClientProtocol {
fn connect(
&self,
ctx: crate::protocol::ConnectContext,
) -> std::pin::Pin<
Box<dyn std::future::Future<Output = anyhow::Result<std::net::SocketAddr>> + Send>,
> {
Box::pin(async move {
use crate::client::jsonrpc::JsonRpcClient;
JsonRpcClient::connect_with_llm_actions(
ctx.remote_addr,
ctx.llm_client,
ctx.state,
ctx.status_tx,
ctx.client_id,
ctx.startup_params,
)
.await
})
}
fn execute_action(&self, action: serde_json::Value) -> Result<ClientActionResult> {
let action_type = action
.get("type")
.and_then(|v| v.as_str())
.context("Missing 'type' field in action")?;
match action_type {
"send_jsonrpc_request" => {
let method = action
.get("method")
.and_then(|v| v.as_str())
.context("Missing 'method' field")?
.to_string();
let params = action.get("params").cloned();
let id = action.get("id").cloned();
Ok(ClientActionResult::Custom {
name: "jsonrpc_request".to_string(),
data: json!({
"method": method,
"params": params,
"id": id,
}),
})
}
"send_jsonrpc_batch" => {
let requests = action
.get("requests")
.and_then(|v| v.as_array())
.context("Missing 'requests' array")?
.clone();
Ok(ClientActionResult::Custom {
name: "jsonrpc_batch".to_string(),
data: json!({
"requests": requests,
}),
})
}
"disconnect" => Ok(ClientActionResult::Disconnect),
"wait_for_more" => Ok(ClientActionResult::WaitForMore),
_ => Err(anyhow::anyhow!(
"Unknown JSON-RPC client action: {}",
action_type
)),
}
}
}