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refactor(cli): resolve control plane endpoints in one value object

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This commit is contained in:
Hugo Durand
2026-09-18 13:36:16 -04:00
parent a0e9bbc93a
commit b11d6572ff
4 changed files with 222 additions and 166 deletions
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libs/cli/tests/unit_tests/test_host_backend.py
+119 -1
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@@ -3,7 +3,11 @@ import json
import httpx
import pytest
from langgraph_cli.host_backend import HostBackendClient, HostBackendError
from langgraph_cli.host_backend import (
ControlPlaneEndpoints,
HostBackendClient,
HostBackendError,
)
@pytest.fixture
@@ -485,3 +489,117 @@ def test_injected_transport_receives_requests_under_the_prefixed_base_url():
"url": "https://smith.example.com/api-host/v2/deployments/dep-1/revisions?limit=2",
"api_key": "key",
}
CLOUD = ("https://api.host.langchain.com", "https://smith.langchain.com")
@pytest.mark.parametrize(
("host_url", "langsmith_endpoint", "expected"),
[
pytest.param(None, None, CLOUD, id="nothing_configured_targets_cloud"),
pytest.param(
None, "https://api.smith.langchain.com", CLOUD, id="cloud_langsmith_api"
),
pytest.param(
None,
"https://api.smith.langchain.com/api/v1",
CLOUD,
id="cloud_langsmith_api_with_versioned_path",
),
pytest.param(
None, "https://api.langchain.com", CLOUD, id="cloud_langchain_api_alias"
),
pytest.param(
None,
"https://eu.api.smith.langchain.com",
("https://eu.api.host.langchain.com", "https://eu.smith.langchain.com"),
id="eu_cloud_maps_to_eu_control_plane",
),
pytest.param(
None,
"https://dev.api.smith.langchain.com",
("https://dev.api.host.langchain.com", "https://dev.smith.langchain.com"),
id="dev_cloud_maps_to_dev_control_plane",
),
pytest.param(
None,
"https://aks.smith.langchain.dev/api",
(
"https://aks.smith.langchain.dev/api-host",
"https://aks.smith.langchain.dev",
),
id="self_hosted_api_path_becomes_api_host",
),
pytest.param(
None,
"https://smith.example.com/api/v1",
("https://smith.example.com/api-host", "https://smith.example.com"),
id="self_hosted_versioned_api_path_becomes_api_host",
),
pytest.param(
None,
"https://smith.example.com",
("https://smith.example.com/api-host", "https://smith.example.com"),
id="self_hosted_origin_gets_api_host_appended",
),
pytest.param(
None,
"https://corp.example.com/langsmith/api/v1",
(
"https://corp.example.com/langsmith/api-host",
"https://corp.example.com/langsmith",
),
id="self_hosted_path_prefix_is_kept",
),
pytest.param(
"https://custom.host.example",
"https://aks.smith.langchain.dev/api",
("https://custom.host.example", "https://smith.langchain.com"),
id="explicit_host_url_beats_langsmith_endpoint",
),
pytest.param(
"https://api.host.langchain.com",
"https://aks.smith.langchain.dev/api",
CLOUD,
id="explicit_cloud_host_url_beats_self_hosted_endpoint",
),
pytest.param(
"https://smith.example.com/api-host/",
None,
("https://smith.example.com/api-host", "https://smith.example.com"),
id="explicit_api_host_url_derives_dashboard_root",
),
pytest.param(
"https://corp.example.com/langsmith/api-host",
None,
(
"https://corp.example.com/langsmith/api-host",
"https://corp.example.com/langsmith",
),
id="explicit_api_host_url_keeps_path_prefix_in_dashboard",
),
pytest.param(
"http://localhost:8080",
None,
("http://localhost:8080", "http://localhost:8080"),
id="localhost_dashboard_is_the_same_origin",
),
pytest.param(
"http://localhost:8080/api-host",
None,
("http://localhost:8080/api-host", "http://localhost:8080"),
id="localhost_api_host_dashboard_is_the_origin",
),
pytest.param(
"https://eu.api.host.langchain.com",
None,
("https://eu.api.host.langchain.com", "https://eu.smith.langchain.com"),
id="regional_control_plane_maps_to_regional_dashboard",
),
],
)
def test_control_plane_endpoints_resolve(host_url, langsmith_endpoint, expected):
endpoints = ControlPlaneEndpoints.resolve(host_url, langsmith_endpoint)
assert (endpoints.control_plane_url, endpoints.dashboard_url) == expected