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mcp.ts
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245 lines (244 loc) · 7.2 KB
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import { Hono } from "hono"
import { describeRoute, validator, resolver } from "hono-openapi"
import z from "zod"
import { MCP } from "../../mcp"
import { Config } from "../../config/config"
import { AppRuntime } from "../../effect/app-runtime"
import { errors } from "../error"
import { lazy } from "../../util/lazy"
import { Effect } from "effect"
export const McpRoutes = lazy(() =>
new Hono()
.get(
"/",
describeRoute({
summary: "Get MCP status",
description: "Get the status of all Model Context Protocol (MCP) servers.",
operationId: "mcp.status",
responses: {
200: {
description: "MCP server status",
content: {
"application/json": {
schema: resolver(z.record(z.string(), MCP.Status)),
},
},
},
},
}),
async (c) => {
return c.json(await AppRuntime.runPromise(MCP.Service.use((mcp) => mcp.status())))
},
)
.post(
"/",
describeRoute({
summary: "Add MCP server",
description: "Dynamically add a new Model Context Protocol (MCP) server to the system.",
operationId: "mcp.add",
responses: {
200: {
description: "MCP server added successfully",
content: {
"application/json": {
schema: resolver(z.record(z.string(), MCP.Status)),
},
},
},
...errors(400),
},
}),
validator(
"json",
z.object({
name: z.string(),
config: Config.Mcp,
}),
),
async (c) => {
const { name, config } = c.req.valid("json")
const result = await AppRuntime.runPromise(MCP.Service.use((mcp) => mcp.add(name, config)))
return c.json(result.status)
},
)
.post(
"/:name/auth",
describeRoute({
summary: "Start MCP OAuth",
description: "Start OAuth authentication flow for a Model Context Protocol (MCP) server.",
operationId: "mcp.auth.start",
responses: {
200: {
description: "OAuth flow started",
content: {
"application/json": {
schema: resolver(
z.object({
authorizationUrl: z.string().describe("URL to open in browser for authorization"),
}),
),
},
},
},
...errors(400, 404),
},
}),
async (c) => {
const name = c.req.param("name")
const result = await AppRuntime.runPromise(
Effect.gen(function* () {
const mcp = yield* MCP.Service
const supports = yield* mcp.supportsOAuth(name)
if (!supports) return { supports }
return {
supports,
auth: yield* mcp.startAuth(name),
}
}),
)
if (!result.supports) {
return c.json({ error: `MCP server ${name} does not support OAuth` }, 400)
}
return c.json(result.auth)
},
)
.post(
"/:name/auth/callback",
describeRoute({
summary: "Complete MCP OAuth",
description:
"Complete OAuth authentication for a Model Context Protocol (MCP) server using the authorization code.",
operationId: "mcp.auth.callback",
responses: {
200: {
description: "OAuth authentication completed",
content: {
"application/json": {
schema: resolver(MCP.Status),
},
},
},
...errors(400, 404),
},
}),
validator(
"json",
z.object({
code: z.string().describe("Authorization code from OAuth callback"),
}),
),
async (c) => {
const name = c.req.param("name")
const { code } = c.req.valid("json")
const status = await AppRuntime.runPromise(MCP.Service.use((mcp) => mcp.finishAuth(name, code)))
return c.json(status)
},
)
.post(
"/:name/auth/authenticate",
describeRoute({
summary: "Authenticate MCP OAuth",
description: "Start OAuth flow and wait for callback (opens browser)",
operationId: "mcp.auth.authenticate",
responses: {
200: {
description: "OAuth authentication completed",
content: {
"application/json": {
schema: resolver(MCP.Status),
},
},
},
...errors(400, 404),
},
}),
async (c) => {
const name = c.req.param("name")
const result = await AppRuntime.runPromise(
Effect.gen(function* () {
const mcp = yield* MCP.Service
const supports = yield* mcp.supportsOAuth(name)
if (!supports) return { supports }
return {
supports,
status: yield* mcp.authenticate(name),
}
}),
)
if (!result.supports) {
return c.json({ error: `MCP server ${name} does not support OAuth` }, 400)
}
return c.json(result.status)
},
)
.delete(
"/:name/auth",
describeRoute({
summary: "Remove MCP OAuth",
description: "Remove OAuth credentials for an MCP server",
operationId: "mcp.auth.remove",
responses: {
200: {
description: "OAuth credentials removed",
content: {
"application/json": {
schema: resolver(z.object({ success: z.literal(true) })),
},
},
},
...errors(404),
},
}),
async (c) => {
const name = c.req.param("name")
await AppRuntime.runPromise(MCP.Service.use((mcp) => mcp.removeAuth(name)))
return c.json({ success: true as const })
},
)
.post(
"/:name/connect",
describeRoute({
description: "Connect an MCP server",
operationId: "mcp.connect",
responses: {
200: {
description: "MCP server connected successfully",
content: {
"application/json": {
schema: resolver(z.boolean()),
},
},
},
},
}),
validator("param", z.object({ name: z.string() })),
async (c) => {
const { name } = c.req.valid("param")
await AppRuntime.runPromise(MCP.Service.use((mcp) => mcp.connect(name)))
return c.json(true)
},
)
.post(
"/:name/disconnect",
describeRoute({
description: "Disconnect an MCP server",
operationId: "mcp.disconnect",
responses: {
200: {
description: "MCP server disconnected successfully",
content: {
"application/json": {
schema: resolver(z.boolean()),
},
},
},
},
}),
validator("param", z.object({ name: z.string() })),
async (c) => {
const { name } = c.req.valid("param")
await AppRuntime.runPromise(MCP.Service.use((mcp) => mcp.disconnect(name)))
return c.json(true)
},
),
)