mirror of
https://github.com/hwchase17/langchain.git
synced 2026-04-04 11:25:11 +00:00
bf5193bb99
Upgrade to using a literal for specifying the extra which is the
recommended approach in pydantic 2.
This works correctly also in pydantic v1.
```python
from pydantic.v1 import BaseModel
class Foo(BaseModel, extra="forbid"):
x: int
Foo(x=5, y=1)
```
And
```python
from pydantic.v1 import BaseModel
class Foo(BaseModel):
x: int
class Config:
extra = "forbid"
Foo(x=5, y=1)
```
## Enum -> literal using grit pattern:
```
engine marzano(0.1)
language python
or {
`extra=Extra.allow` => `extra="allow"`,
`extra=Extra.forbid` => `extra="forbid"`,
`extra=Extra.ignore` => `extra="ignore"`
}
```
Resorted attributes in config and removed doc-string in case we will
need to deal with going back and forth between pydantic v1 and v2 during
the 0.3 release. (This will reduce merge conflicts.)
## Sort attributes in Config:
```
engine marzano(0.1)
language python
function sort($values) js {
return $values.text.split(',').sort().join("\n");
}
class_definition($name, $body) as $C where {
$name <: `Config`,
$body <: block($statements),
$values = [],
$statements <: some bubble($values) assignment() as $A where {
$values += $A
},
$body => sort($values),
}
```
35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
import json
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from typing import Optional
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from langchain_core.callbacks import CallbackManagerForToolRun
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from langchain_core.tools import BaseTool
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from langchain_community.utilities.graphql import GraphQLAPIWrapper
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class BaseGraphQLTool(BaseTool):
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"""Base tool for querying a GraphQL API."""
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graphql_wrapper: GraphQLAPIWrapper
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name: str = "query_graphql"
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description: str = """\
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Input to this tool is a detailed and correct GraphQL query, output is a result from the API.
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If the query is not correct, an error message will be returned.
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If an error is returned with 'Bad request' in it, rewrite the query and try again.
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If an error is returned with 'Unauthorized' in it, do not try again, but tell the user to change their authentication.
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Example Input: query {{ allUsers {{ id, name, email }} }}\
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""" # noqa: E501
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class Config:
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arbitrary_types_allowed = True
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def _run(
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self,
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tool_input: str,
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run_manager: Optional[CallbackManagerForToolRun] = None,
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) -> str:
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result = self.graphql_wrapper.run(tool_input)
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return json.dumps(result, indent=2)
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