(mcpUrl: string, bearer: string)
| 77 | |
| 78 | /** initialize → session id (asserted present) → notifications/initialized. */ |
| 79 | const openSession = async (mcpUrl: string, bearer: string): Promise<string> => { |
| 80 | const initialize = await mcpPost(mcpUrl, { bearer, body: INITIALIZE_REQUEST }); |
| 81 | const sessionId = initialize.headers.get("mcp-session-id"); |
| 82 | await initialize.text(); |
| 83 | if (initialize.status !== 200 || !sessionId) { |
| 84 | throw new Error(`openSession: initialize failed (${initialize.status})`); |
| 85 | } |
| 86 | const initialized = await mcpPost(mcpUrl, { |
| 87 | bearer, |
| 88 | sessionId, |
| 89 | body: INITIALIZED_NOTIFICATION, |
| 90 | }); |
| 91 | await initialized.text(); |
| 92 | if (initialized.status !== 202) { |
| 93 | throw new Error(`openSession: notifications/initialized failed (${initialized.status})`); |
| 94 | } |
| 95 | return sessionId; |
| 96 | }; |
| 97 | |
| 98 | scenario( |
| 99 | "MCP protocol · /mcp answers a CORS preflight allowing the headers an MCP client sends", |
no test coverage detected