fix: auth login 時に tenantId を service として config に保存する

CHANGELOG.md

@@ -7,6 +7,9 @@
 
 ## [Unreleased]
 
+### 2026-03-24
+- **Fix**: `auth login` 後に `NGSILD-Tenant` ヘッダーが付与されない問題を修正 — ログインレスポンスの `tenantId` を `service` として config に保存するようにした (#89)
+
 ## [0.8.0] - 2026-03-23
 
 ### 2026-03-23

src/commands/auth.ts

@@ -115,11 +115,11 @@ function createLoginCommand(): Command {
 
         // Handle multi-tenant: show available tenants and prompt for selection
         const availableTenants = data.availableTenants as TenantChoice[] | undefined;
-        const currentTenantId = data.tenantId as string | undefined;
+        let finalTenantId = data.tenantId as string | undefined;
 
         if (availableTenants && availableTenants.length > 1 && !loginOpts.tenantId) {
-          const selectedTenantId = await promptTenantSelection(availableTenants, currentTenantId);
-          if (selectedTenantId && selectedTenantId !== currentTenantId) {
+          const selectedTenantId = await promptTenantSelection(availableTenants, finalTenantId);
+          if (selectedTenantId && selectedTenantId !== finalTenantId) {
             // Re-login with selected tenant
             const reloginResponse = await client.rawRequest("POST", "/auth/login", {
               body: { email, password, tenantId: selectedTenantId },
@@ -133,6 +133,7 @@ function createLoginCommand(): Command {
             }
             token = newToken;
             refreshToken = reloginData.refreshToken as string | undefined;
+            finalTenantId = selectedTenantId;
           }
         }
 
@@ -143,6 +144,9 @@ function createLoginCommand(): Command {
         } else {
           delete config.refreshToken;
         }
+        if (finalTenantId) {
+          config.service = finalTenantId;
+        }
         saveConfig(config, globalOpts.profile);
 
         printSuccess("Login successful. Token saved to config.");

tests/auth.test.ts

@@ -320,6 +320,34 @@ describe("auth commands", () => {
       expect(saveConfig).toHaveBeenCalled();
     });
 
+    it("saves tenantId as service when present in login response", async () => {
+      vi.mocked(isInteractive).mockReturnValue(true);
+      vi.mocked(promptEmail).mockResolvedValue("user@example.com");
+      vi.mocked(promptPassword).mockResolvedValue("pass123");
+      client.rawRequest.mockResolvedValue(
+        mockResponse({ accessToken: "tok", tenantId: "ed945710-fb96-4d17-811b-425abcb9b70e" }),
+      );
+      const program = makeProgram();
+      await runCommand(program, ["auth", "login"]);
+      expect(saveConfig).toHaveBeenCalledWith(
+        expect.objectContaining({ token: "tok", service: "ed945710-fb96-4d17-811b-425abcb9b70e" }),
+        "default",
+      );
+    });
+
+    it("does not set service when tenantId is absent from login response", async () => {
+      vi.mocked(isInteractive).mockReturnValue(true);
+      vi.mocked(promptEmail).mockResolvedValue("user@example.com");
+      vi.mocked(promptPassword).mockResolvedValue("pass123");
+      client.rawRequest.mockResolvedValue(
+        mockResponse({ accessToken: "tok" }),
+      );
+      const program = makeProgram();
+      await runCommand(program, ["auth", "login"]);
+      const savedConfig = vi.mocked(saveConfig).mock.calls[0][0] as Record<string, unknown>;
+      expect(savedConfig).not.toHaveProperty("service");
+    });
+
     it("reads token from data.token when accessToken is not present", async () => {
       vi.mocked(isInteractive).mockReturnValue(true);
       vi.mocked(promptEmail).mockResolvedValue("user@example.com");
@@ -356,7 +384,7 @@ describe("auth commands", () => {
       await runCommand(program, ["auth", "login"]);
       expect(promptTenantSelection).toHaveBeenCalledWith(tenants, "city_a");
       expect(saveConfig).toHaveBeenCalledWith(
-        expect.objectContaining({ token: "tok" }),
+        expect.objectContaining({ token: "tok", service: "city_a" }),
         "default",
       );
     });
@@ -382,7 +410,7 @@ describe("auth commands", () => {
         skipTenantHeader: true,
       });
       expect(saveConfig).toHaveBeenCalledWith(
-        expect.objectContaining({ token: "tok-b", refreshToken: "ref-b" }),
+        expect.objectContaining({ token: "tok-b", refreshToken: "ref-b", service: "city_b" }),
         "default",
       );
     });
@@ -445,7 +473,7 @@ describe("auth commands", () => {
       // Should not re-login since selectedTenantId === currentTenantId
       expect(client.rawRequest).toHaveBeenCalledTimes(1);
       expect(saveConfig).toHaveBeenCalledWith(
-        expect.objectContaining({ token: "tok-a" }),
+        expect.objectContaining({ token: "tok-a", service: "city_a" }),
         "default",
       );
     });