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feat(api): update API spec from langfuse/langfuse d89dbc1 #1703

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12 changes: 2 additions & 10 deletions langfuse/api/blob_storage_integrations/client.py
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Expand Up @@ -155,11 +155,7 @@ def upsert_blob_storage_integration(
**Cloud-only deprecation gate (effective 2026-05-20):** For projects created on or after 2026-05-20 on Langfuse Cloud, `LEGACY_TRACES_OBSERVATIONS` and `LEGACY_TRACES_AND_ENRICHED_OBSERVATIONS` are rejected with HTTP 400. Omitting `exportSource` on these projects silently defaults to `OBSERVATIONS_V2` rather than the schema column default. Use `OBSERVATIONS_V2` for all new integrations. Projects created before 2026-05-20 and self-hosted deployments are unaffected.

export_field_groups : typing.Optional[typing.Sequence[BlobStorageExportFieldGroup]]
Field groups to include in each exported row.

For exportSource `OBSERVATIONS_V2` or `LEGACY_TRACES_AND_ENRICHED_OBSERVATIONS`: must include `core` if provided. When omitted on create, the column default (all groups) applies. When omitted on update, the existing value is preserved.

For exportSource `LEGACY_TRACES_OBSERVATIONS`: this field must be omitted or null. Sending an array (including an empty array) returns 400, because that source uses a fixed column set and does not honor field groups.
Field groups to include in each exported observation row. Applies to all export sources; must include `core` if provided. When omitted on create, the column default (all groups) applies. When omitted on update, the existing value is preserved.

`exportFieldGroups` requires `exportSource` to be provided in the same request.

Expand Down Expand Up @@ -434,11 +430,7 @@ async def upsert_blob_storage_integration(
**Cloud-only deprecation gate (effective 2026-05-20):** For projects created on or after 2026-05-20 on Langfuse Cloud, `LEGACY_TRACES_OBSERVATIONS` and `LEGACY_TRACES_AND_ENRICHED_OBSERVATIONS` are rejected with HTTP 400. Omitting `exportSource` on these projects silently defaults to `OBSERVATIONS_V2` rather than the schema column default. Use `OBSERVATIONS_V2` for all new integrations. Projects created before 2026-05-20 and self-hosted deployments are unaffected.

export_field_groups : typing.Optional[typing.Sequence[BlobStorageExportFieldGroup]]
Field groups to include in each exported row.

For exportSource `OBSERVATIONS_V2` or `LEGACY_TRACES_AND_ENRICHED_OBSERVATIONS`: must include `core` if provided. When omitted on create, the column default (all groups) applies. When omitted on update, the existing value is preserved.

For exportSource `LEGACY_TRACES_OBSERVATIONS`: this field must be omitted or null. Sending an array (including an empty array) returns 400, because that source uses a fixed column set and does not honor field groups.
Field groups to include in each exported observation row. Applies to all export sources; must include `core` if provided. When omitted on create, the column default (all groups) applies. When omitted on update, the existing value is preserved.

`exportFieldGroups` requires `exportSource` to be provided in the same request.

Expand Down
12 changes: 2 additions & 10 deletions langfuse/api/blob_storage_integrations/raw_client.py
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Expand Up @@ -212,11 +212,7 @@ def upsert_blob_storage_integration(
**Cloud-only deprecation gate (effective 2026-05-20):** For projects created on or after 2026-05-20 on Langfuse Cloud, `LEGACY_TRACES_OBSERVATIONS` and `LEGACY_TRACES_AND_ENRICHED_OBSERVATIONS` are rejected with HTTP 400. Omitting `exportSource` on these projects silently defaults to `OBSERVATIONS_V2` rather than the schema column default. Use `OBSERVATIONS_V2` for all new integrations. Projects created before 2026-05-20 and self-hosted deployments are unaffected.

export_field_groups : typing.Optional[typing.Sequence[BlobStorageExportFieldGroup]]
Field groups to include in each exported row.

For exportSource `OBSERVATIONS_V2` or `LEGACY_TRACES_AND_ENRICHED_OBSERVATIONS`: must include `core` if provided. When omitted on create, the column default (all groups) applies. When omitted on update, the existing value is preserved.

For exportSource `LEGACY_TRACES_OBSERVATIONS`: this field must be omitted or null. Sending an array (including an empty array) returns 400, because that source uses a fixed column set and does not honor field groups.
Field groups to include in each exported observation row. Applies to all export sources; must include `core` if provided. When omitted on create, the column default (all groups) applies. When omitted on update, the existing value is preserved.

`exportFieldGroups` requires `exportSource` to be provided in the same request.

Expand Down Expand Up @@ -709,11 +705,7 @@ async def upsert_blob_storage_integration(
**Cloud-only deprecation gate (effective 2026-05-20):** For projects created on or after 2026-05-20 on Langfuse Cloud, `LEGACY_TRACES_OBSERVATIONS` and `LEGACY_TRACES_AND_ENRICHED_OBSERVATIONS` are rejected with HTTP 400. Omitting `exportSource` on these projects silently defaults to `OBSERVATIONS_V2` rather than the schema column default. Use `OBSERVATIONS_V2` for all new integrations. Projects created before 2026-05-20 and self-hosted deployments are unaffected.

export_field_groups : typing.Optional[typing.Sequence[BlobStorageExportFieldGroup]]
Field groups to include in each exported row.

For exportSource `OBSERVATIONS_V2` or `LEGACY_TRACES_AND_ENRICHED_OBSERVATIONS`: must include `core` if provided. When omitted on create, the column default (all groups) applies. When omitted on update, the existing value is preserved.

For exportSource `LEGACY_TRACES_OBSERVATIONS`: this field must be omitted or null. Sending an array (including an empty array) returns 400, because that source uses a fixed column set and does not honor field groups.
Field groups to include in each exported observation row. Applies to all export sources; must include `core` if provided. When omitted on create, the column default (all groups) applies. When omitted on update, the existing value is preserved.

`exportFieldGroups` requires `exportSource` to be provided in the same request.

Expand Down
2 changes: 1 addition & 1 deletion langfuse/api/blob_storage_integrations/types/blob_storage_export_field_group.py
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Expand Up @@ -9,7 +9,7 @@

class BlobStorageExportFieldGroup(enum.StrEnum):
"""
Field group for the OBSERVATIONS_V2 and LEGACY_TRACES_AND_ENRICHED_OBSERVATIONS export.
Field group selecting which observation columns are included in the export. Applies to all export sources; groups without a counterpart in the legacy data model (e.g. `trace_context`) are omitted from the legacy observations export.
"""

CORE = "core"
Expand Down
4 changes: 2 additions & 2 deletions langfuse/api/blob_storage_integrations/types/blob_storage_export_source.py
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Expand Up @@ -10,9 +10,9 @@
class BlobStorageExportSource(enum.StrEnum):
"""
What data the integration exports.
- `LEGACY_TRACES_OBSERVATIONS`: traces, observations, and scores tables with a fixed column set. The `exportFieldGroups` field is not applicable.
- `LEGACY_TRACES_OBSERVATIONS`: traces, observations, and scores tables. Observation columns are controlled by `exportFieldGroups`; field groups without a counterpart in this data model (e.g. `trace_context`) are omitted.
- `OBSERVATIONS_V2`: same data model as the `/api/public/v2/observations` endpoint, plus scores. Columns are controlled by `exportFieldGroups`.
- `LEGACY_TRACES_AND_ENRICHED_OBSERVATIONS`: both sets. For the `OBSERVATIONS_V2` portion, columns are controlled by `exportFieldGroups`.
- `LEGACY_TRACES_AND_ENRICHED_OBSERVATIONS`: both sets. Observation columns of both portions are controlled by `exportFieldGroups`.

**Note:** `OBSERVATIONS_V2` and the enriched-observations portion of `LEGACY_TRACES_AND_ENRICHED_OBSERVATIONS` rely on the enriched observations table (Langfuse Fast Preview / v4), which is currently available on Langfuse Cloud only. See https://langfuse.com/docs/v4.
"""
Expand Down
2 changes: 1 addition & 1 deletion langfuse/api/blob_storage_integrations/types/blob_storage_integration_response.py
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Expand Up @@ -51,7 +51,7 @@ class BlobStorageIntegrationResponse(UniversalBaseModel):
FieldMetadata(alias="exportFieldGroups"),
] = pydantic.Field(default=None)
"""
Field groups included in each exported row for `OBSERVATIONS_V2` / `LEGACY_TRACES_AND_ENRICHED_OBSERVATIONS` sources. Always `null` when exportSource is `LEGACY_TRACES_OBSERVATIONS` (the field does not apply to that source; any legacy DB value is hidden from the public surface).
Field groups included in each exported observation row. An empty list is treated as all groups during export.
"""

next_sync_at: typing_extensions.Annotated[
Expand Down
6 changes: 1 addition & 5 deletions langfuse/api/blob_storage_integrations/types/create_blob_storage_integration_request.py
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Expand Up @@ -107,11 +107,7 @@ class CreateBlobStorageIntegrationRequest(UniversalBaseModel):
FieldMetadata(alias="exportFieldGroups"),
] = pydantic.Field(default=None)
"""
Field groups to include in each exported row.

For exportSource `OBSERVATIONS_V2` or `LEGACY_TRACES_AND_ENRICHED_OBSERVATIONS`: must include `core` if provided. When omitted on create, the column default (all groups) applies. When omitted on update, the existing value is preserved.

For exportSource `LEGACY_TRACES_OBSERVATIONS`: this field must be omitted or null. Sending an array (including an empty array) returns 400, because that source uses a fixed column set and does not honor field groups.
Field groups to include in each exported observation row. Applies to all export sources; must include `core` if provided. When omitted on create, the column default (all groups) applies. When omitted on update, the existing value is preserved.

`exportFieldGroups` requires `exportSource` to be provided in the same request.
"""
Expand Down
12 changes: 12 additions & 0 deletions langfuse/api/scores/client.py
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Expand Up @@ -54,6 +54,9 @@ def get_many(
request_options: typing.Optional[RequestOptions] = None,
) -> GetScoresResponse:
"""
**Deprecated.** Use `GET /api/public/v3/scores` instead. This endpoint
is no longer available on Langfuse v4 and later.

Get a list of scores (supports both trace and session scores)

Parameters
Expand Down Expand Up @@ -172,6 +175,9 @@ def get_by_id(
self, score_id: str, *, request_options: typing.Optional[RequestOptions] = None
) -> Score:
"""
**Deprecated.** Use `GET /api/public/v3/scores` with the `id` filter
instead. This endpoint is no longer available on Langfuse v4 and later.

Get a score (supports both trace and session scores)

Parameters
Expand Down Expand Up @@ -250,6 +256,9 @@ async def get_many(
request_options: typing.Optional[RequestOptions] = None,
) -> GetScoresResponse:
"""
**Deprecated.** Use `GET /api/public/v3/scores` instead. This endpoint
is no longer available on Langfuse v4 and later.

Get a list of scores (supports both trace and session scores)

Parameters
Expand Down Expand Up @@ -376,6 +385,9 @@ async def get_by_id(
self, score_id: str, *, request_options: typing.Optional[RequestOptions] = None
) -> Score:
"""
**Deprecated.** Use `GET /api/public/v3/scores` with the `id` filter
instead. This endpoint is no longer available on Langfuse v4 and later.

Get a score (supports both trace and session scores)

Parameters
Expand Down
12 changes: 12 additions & 0 deletions langfuse/api/scores/raw_client.py
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Expand Up @@ -53,6 +53,9 @@ def get_many(
request_options: typing.Optional[RequestOptions] = None,
) -> HttpResponse[GetScoresResponse]:
"""
**Deprecated.** Use `GET /api/public/v3/scores` instead. This endpoint
is no longer available on Langfuse v4 and later.

Get a list of scores (supports both trace and session scores)

Parameters
Expand Down Expand Up @@ -241,6 +244,9 @@ def get_by_id(
self, score_id: str, *, request_options: typing.Optional[RequestOptions] = None
) -> HttpResponse[Score]:
"""
**Deprecated.** Use `GET /api/public/v3/scores` with the `id` filter
instead. This endpoint is no longer available on Langfuse v4 and later.

Get a score (supports both trace and session scores)

Parameters
Expand Down Expand Up @@ -370,6 +376,9 @@ async def get_many(
request_options: typing.Optional[RequestOptions] = None,
) -> AsyncHttpResponse[GetScoresResponse]:
"""
**Deprecated.** Use `GET /api/public/v3/scores` instead. This endpoint
is no longer available on Langfuse v4 and later.

Get a list of scores (supports both trace and session scores)

Parameters
Expand Down Expand Up @@ -558,6 +567,9 @@ async def get_by_id(
self, score_id: str, *, request_options: typing.Optional[RequestOptions] = None
) -> AsyncHttpResponse[Score]:
"""
**Deprecated.** Use `GET /api/public/v3/scores` with the `id` filter
instead. This endpoint is no longer available on Langfuse v4 and later.

Get a score (supports both trace and session scores)

Parameters
Expand Down
34 changes: 24 additions & 10 deletions langfuse/api/scores_v3/client.py
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Expand Up @@ -52,15 +52,22 @@ def get_many_v3(
"""
Get a list of scores with a polymorphic `value` field (v3).

This endpoint requires Langfuse v4 or later.

The `value` field type depends on `dataType`:
- `NUMERIC` → number
- `BOOLEAN` → boolean
- `CATEGORICAL`, `TEXT`, `CORRECTION` → string

Use the `fields` parameter to include optional field groups beyond the
default `core`. Unknown group names return HTTP 400.
The response always includes the core fields: id, projectId, name,
value, dataType, source, timestamp, environment, createdAt, updatedAt.

Additional field groups can be requested via the `fields` parameter:
- `details` — adds comment, configId, metadata
- `subject` — adds the subject object describing the entity the score
is attached to: kind (trace, observation, session, or experiment),
id, and traceId for observation-level scores
- `annotation` — adds authorUserId, queueId

Unknown group names return HTTP 400.

Parameters
----------
Expand All @@ -71,7 +78,7 @@ def get_many_v3(
URL-safe base64 (base64url) cursor for pagination. Use the cursor from the previous response to get the next page. Absent on the final page.

fields : typing.Optional[str]
Comma-separated field groups to include. Allowed: core, details, subject, annotation. Defaults to "core". Unknown names return HTTP 400.
Comma-separated field groups to include in addition to the always-returned core fields. Allowed: details, subject, annotation — see the endpoint description for the fields each group adds. Unknown names return HTTP 400.

@greptile-apps greptile-apps Bot Jun 11, 2026

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P1 core silently removed from allowed fields values

The previous docstring listed core as an explicit allowed value for the fields parameter ("Allowed: core, details, subject, annotation. Defaults to 'core'"). The new docstring removes core from the allowed list because core fields are now always returned. If the server also starts rejecting fields=core with HTTP 400 (as the new wording "Unknown group names return HTTP 400" implies), any existing caller that explicitly passes fields="core" or fields="core,details" will receive a 400 error without any SDK-level warning. The same change appears in raw_client.py and both classes in scores_v3/raw_client.py.

Prompt To Fix With AI 
This is a comment left during a code review.
Path: langfuse/api/scores_v3/client.py
Line: 81

Comment:
**`core` silently removed from allowed `fields` values**

The previous docstring listed `core` as an explicit allowed value for the `fields` parameter ("Allowed: core, details, subject, annotation. Defaults to 'core'"). The new docstring removes `core` from the allowed list because core fields are now always returned. If the server also starts rejecting `fields=core` with HTTP 400 (as the new wording "Unknown group names return HTTP 400" implies), any existing caller that explicitly passes `fields="core"` or `fields="core,details"` will receive a 400 error without any SDK-level warning. The same change appears in `raw_client.py` and both classes in `scores_v3/raw_client.py`.

How can I resolve this? If you propose a fix, please make it concise.


id : typing.Optional[str]
Comma-separated list of score IDs to filter by (OR within, AND across filters).
Expand Down Expand Up @@ -214,15 +221,22 @@ async def get_many_v3(
"""
Get a list of scores with a polymorphic `value` field (v3).

This endpoint requires Langfuse v4 or later.

The `value` field type depends on `dataType`:
- `NUMERIC` → number
- `BOOLEAN` → boolean
- `CATEGORICAL`, `TEXT`, `CORRECTION` → string

Use the `fields` parameter to include optional field groups beyond the
default `core`. Unknown group names return HTTP 400.
The response always includes the core fields: id, projectId, name,
value, dataType, source, timestamp, environment, createdAt, updatedAt.

Additional field groups can be requested via the `fields` parameter:
- `details` — adds comment, configId, metadata
- `subject` — adds the subject object describing the entity the score
is attached to: kind (trace, observation, session, or experiment),
id, and traceId for observation-level scores
- `annotation` — adds authorUserId, queueId

Unknown group names return HTTP 400.

Parameters
----------
Expand All @@ -233,7 +247,7 @@ async def get_many_v3(
URL-safe base64 (base64url) cursor for pagination. Use the cursor from the previous response to get the next page. Absent on the final page.

fields : typing.Optional[str]
Comma-separated field groups to include. Allowed: core, details, subject, annotation. Defaults to "core". Unknown names return HTTP 400.
Comma-separated field groups to include in addition to the always-returned core fields. Allowed: details, subject, annotation — see the endpoint description for the fields each group adds. Unknown names return HTTP 400.

id : typing.Optional[str]
Comma-separated list of score IDs to filter by (OR within, AND across filters).
Expand Down
34 changes: 24 additions & 10 deletions langfuse/api/scores_v3/raw_client.py
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -50,15 +50,22 @@ def get_many_v3(
"""
Get a list of scores with a polymorphic `value` field (v3).

This endpoint requires Langfuse v4 or later.

The `value` field type depends on `dataType`:
- `NUMERIC` → number
- `BOOLEAN` → boolean
- `CATEGORICAL`, `TEXT`, `CORRECTION` → string

Use the `fields` parameter to include optional field groups beyond the
default `core`. Unknown group names return HTTP 400.
The response always includes the core fields: id, projectId, name,
value, dataType, source, timestamp, environment, createdAt, updatedAt.

Additional field groups can be requested via the `fields` parameter:
- `details` — adds comment, configId, metadata
- `subject` — adds the subject object describing the entity the score
is attached to: kind (trace, observation, session, or experiment),
id, and traceId for observation-level scores
- `annotation` — adds authorUserId, queueId

Unknown group names return HTTP 400.

Parameters
----------
Expand All @@ -69,7 +76,7 @@ def get_many_v3(
URL-safe base64 (base64url) cursor for pagination. Use the cursor from the previous response to get the next page. Absent on the final page.

fields : typing.Optional[str]
Comma-separated field groups to include. Allowed: core, details, subject, annotation. Defaults to "core". Unknown names return HTTP 400.
Comma-separated field groups to include in addition to the always-returned core fields. Allowed: details, subject, annotation — see the endpoint description for the fields each group adds. Unknown names return HTTP 400.

id : typing.Optional[str]
Comma-separated list of score IDs to filter by (OR within, AND across filters).
Expand Down Expand Up @@ -271,15 +278,22 @@ async def get_many_v3(
"""
Get a list of scores with a polymorphic `value` field (v3).

This endpoint requires Langfuse v4 or later.

The `value` field type depends on `dataType`:
- `NUMERIC` → number
- `BOOLEAN` → boolean
- `CATEGORICAL`, `TEXT`, `CORRECTION` → string

Use the `fields` parameter to include optional field groups beyond the
default `core`. Unknown group names return HTTP 400.
The response always includes the core fields: id, projectId, name,
value, dataType, source, timestamp, environment, createdAt, updatedAt.

Additional field groups can be requested via the `fields` parameter:
- `details` — adds comment, configId, metadata
- `subject` — adds the subject object describing the entity the score
is attached to: kind (trace, observation, session, or experiment),
id, and traceId for observation-level scores
- `annotation` — adds authorUserId, queueId

Unknown group names return HTTP 400.

Parameters
----------
Expand All @@ -290,7 +304,7 @@ async def get_many_v3(
URL-safe base64 (base64url) cursor for pagination. Use the cursor from the previous response to get the next page. Absent on the final page.

fields : typing.Optional[str]
Comma-separated field groups to include. Allowed: core, details, subject, annotation. Defaults to "core". Unknown names return HTTP 400.
Comma-separated field groups to include in addition to the always-returned core fields. Allowed: details, subject, annotation — see the endpoint description for the fields each group adds. Unknown names return HTTP 400.

id : typing.Optional[str]
Comma-separated list of score IDs to filter by (OR within, AND across filters).
Expand Down