pyforgejo

A Python client library for accessing the Forgejo API.

:warning: pyforgejo 2.0 introduces significant changes. If you're using 1.0, you can view docs on the 1.0 branch.

Usage

1. Create an .env file in your project directory with the BASE_URL and your API_KEY:

BASE_URL=https://codeberg.org/api/v1
API_KEY=your_api_key

2. Create a client and call an endpoint:

from pyforgejo import PyforgejoApi

client = PyforgejoApi()

# get a specific repo
repo = client.repository.repo_get(owner='harabat', repo='pyforgejo')

repo
# Repository(allow_fast_forward_only_merge=False, allow_merge_commits=True, allow_rebase=True, ...)

repo.dict()
# {'allow_fast_forward_only_merge': False,
#  'allow_merge_commits': True,
#  'allow_rebase': True,
#  ...
# }

# list issues for the repo
issues = client.issue.list_issues(owner=repo.owner.login, repo=repo.name)

[issue.title for issue in issues]
# ['Normalize option model names',
#  'Calling methods from client',
#  '`parsed` is None for most methods',
#  '`openapi-python-client` does not support `text/plain` requests']

The client follows this pattern for calling endpoints:

client.<resource>.<operation_id>(args)

where:

• <resource>: the API resource (e.g., repository, issue, user)
• <operation_id>: the specific operation, derived from the OpenAPI spec's operationId (converted to snake_case)

You can find the resource and operation_id either in the Swagger spec or in the API reference.

Installation

pip install pyforgejo

Forgejo API Resources

• API Usage | Forgejo: user guide for the Forgejo API
• Forgejo API | Codeberg: API reference for Forgejo
• Forgejo API Swagger spec | Codeberg: Forgejo API Swagger spec
• About Swagger Specification | Documentation | Swagger: docs for Swagger spec
• The OpenAPI Specification Explained | OpenAPI Documentation: docs for OpenAPI spec

Development

Using fern

pyforgejo 2.0 is generated with fern, based on a slightly edited Forgejo OpenAPI spec.

The user experience and code architecture of the fern-generated client follow best practice. As the library is tested by users, we will identify any issues inherent to fern that prove limiting to pyforgejo: if we find such issues and cannot patch them upstream, the current codebase provides a good foundation for further development and any divergence from fern would not affect the vast majority of usecases.

Generating the client with fern

1. Install fern, initialise a new workspace, and specify pyforgejo as the name of your organisation (= client).

npm install -g fern-api

fern init --openapi https://code.forgejo.org/swagger.v1.json
# Please enter your organization: pyforgejo

2. Edit the fern/openapi/openapi.json file to keep only AuthorizationHeaderToken in securityDefinitions and security.

"securityDefinitions": {
  "AuthorizationHeaderToken": {
    "description": "API tokens must be prepended with \"token\" followed by a space.",
    "type": "apiKey",
    "name": "Authorization",
    "in": "header"
  }
},
"security": [
  {
    "AuthorizationHeaderToken": []
  }
]

3. Convert Forgejo's Swagger (v2) API spec to OpenAPI v3 via https://converter.swagger.io/.

4. Modify endpoints with multiple return types in fern/openapi/openapi.json.

    "/repos/{owner}/{repo}/contents/{filepath}": {
      "get": {
        // ...
        "responses": {
          "200": {
-            "$ref": "#/components/responses/ContentsResponse"
+            "description": "A single file's contents or a directory listing",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "oneOf": [
+                    {
+                      "$ref": "#/components/schemas/ContentsResponse"
+                    },
+                    {
+                      "type": "array",
+                      "items": {
+                        "$ref": "#/components/schemas/ContentsResponse"
+                      }
+                    }
+                  ]
+                }
+              },
+              "text/html": {
+                "schema": {
+                  "oneOf": [
+                    {
+                      "$ref": "#/components/schemas/ContentsResponse"
+                    },
+                    {
+                      "type": "array",
+                      "items": {
+                        "$ref": "#/components/schemas/ContentsResponse"
+                      }
+                    }
+                  ]
+                }
+              }
+            }
          },
          "404": {
            "$ref": "#/components/responses/notFound"
          }
        }
      },
// ...
    },

5. Add the Python SDK generator to fern.

fern add fernapi/fern-python-sdk

6. Remove the other generators and modify the name of the output dir to pyforgejo.

# yaml-language-server: $schema=https://schema.buildwithfern.dev/generators-yml.json
api:
  specs:
    - openapi: openapi/openapi.json
default-group: local
groups:
  local:
    generators:
-      - name: fernapi/fern-typescript-sdk
-        # ...
      - name: fernapi/fern-python-sdk
        version: x.x.x
        output:
          location: local-file-system
-          path: ../sdks/python
+          path: ../sdks/pyforgejo

7. Generate the client (output will be in sdks/pyforgejo).

fern generate
# you'll have to login to GitHub

8. Create a .env file in sdks/pyforgejo with your BASE_URL and API_KEY.

BASE_URL=https://codeberg.org/api/v1
API_KEY="token your_api_key"

9. Modify the PyforgejoApi and AsyncPyforgejoApi classes in sdks/pyforgejo/pyforgejo/client.py to use environment variables.

# ...
from .user.client import AsyncUserClient
+import os
+from dotenv import load_dotenv
+
+load_dotenv()
+
+BASE_URL = os.getenv('BASE_URL')
+API_KEY = os.getenv('API_KEY')

class PyforgejoApi:
# ...
    base_url : typing.Optional[str]
-        The base url to use for requests from the client.
+        The base url to use for requests from the client. Defaults to BASE_URL from .env file.
# ...
-    api_key : str
+    api_key : typing.Optional[str]
+        The API key to use for authentication. Defaults to API_KEY from .env file.
# ...
    def __init__(
# ...
-        api_key: str,
+        api_key: typing.Optional[str] = None,
# ...
     ):
+        base_url = base_url or BASE_URL
+        api_key = api_key or API_KEY
+
+        if not base_url:
+            raise ValueError("base_url must be provided either as an .env variable or as an argument")
+        if not api_key:
+            raise ValueError("api_key must be provided either as an .env variable or as an argument")
# same for AsyncPyforgejoApi

10. Update handling of api_key in core/client_wrapper.py.

    def get_headers(self) -> typing.Dict[str, str]:
        headers: typing.Dict[str, str] = {
            "X-Fern-Language": "Python",
        }
-        headers["Authorization"] = self.api_key
+        headers["Authorization"] = f"token {self.api_key.replace('token ', '')}"
        return headers

11. Create a virtual environment and install the lib.

cd /path/to/sdks
uv init
uv venv
uv pip install -e .
uv pip install pipreqs
uv run pipreqs ./pyforgejo --savepath requirements.txt
uv add -r requirements.txt
uv sync

12. Use the client as shown in the Usage section.

# uv pip install ipython
# uv run ipython

from pyforgejo import PyforgejoApi

client = PyforgejoApi()

user = client.user.get_current()

13. Run tests (tests need to be cloned from https://codeberg.org/harabat/pyforgejo/src/branch/main/tests).

uv pip install pytest
uv run pytest -v tests/test_client.py