Metadata-Version: 2.4
Name: diavgeia
Version: 1.0.0
Summary: A consolidated Python client for the Greek Δι@ύγεια (Diavgeia) OpenData API
License: MIT
Project-URL: Homepage, https://github.com/infimum/diavgeia-client
Project-URL: Documentation, https://github.com/infimum/diavgeia-client/tree/main/docs
Project-URL: Source, https://github.com/infimum/diavgeia-client
Project-URL: Issues, https://github.com/infimum/diavgeia-client/issues
Project-URL: Upstream API docs, https://diavgeia.gov.gr/api/help
Project-URL: API Samples, https://github.com/diavgeia
Keywords: diavgeia,greece,opendata,transparency,government,public-sector,api-client
Classifier: Development Status :: 4 - Beta
Classifier: Intended Audience :: Developers
Classifier: Intended Audience :: Science/Research
Classifier: License :: OSI Approved :: MIT License
Classifier: Natural Language :: Greek
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Programming Language :: Python :: 3.11
Classifier: Programming Language :: Python :: 3.12
Classifier: Programming Language :: Python :: 3.13
Classifier: Topic :: Internet :: WWW/HTTP
Classifier: Topic :: Software Development :: Libraries :: Python Modules
Requires-Python: >=3.9
Description-Content-Type: text/markdown
License-File: LICENSE
Requires-Dist: requests>=2.25
Provides-Extra: pandas
Requires-Dist: pandas>=1.3; extra == "pandas"
Provides-Extra: dev
Requires-Dist: pytest>=7; extra == "dev"
Requires-Dist: pytest-cov; extra == "dev"
Requires-Dist: mypy; extra == "dev"
Requires-Dist: ruff; extra == "dev"
Requires-Dist: build; extra == "dev"
Requires-Dist: twine; extra == "dev"
Requires-Dist: types-requests; extra == "dev"
Dynamic: license-file

# diavgeia

A consolidated Python client for the Greek **Δι@ύγεια** (Diavgeia) OpenData API — the
transparency programme where every administrative act of the Greek public sector is
published with a unique ΑΔΑ (Αριθμός Διαδικτυακής Ανάρτησης).

One connection object covers the whole API: search, decisions, documents, the org chart,
reference dictionaries, and the publishing endpoints.

```bash
pip install diavgeia
```

```python
from diavgeia import Diavgeia, Q

with Diavgeia() as dv:
    d = dv.decisions.get("ΡΒΠΕ7ΛΞ-Ν1Ζ")
    print(d.subject, d.issue_date, d.amount())

    contracts = Q.decision_type("Δ.1") & Q.subject("ΠΡΟΜΗΘΕΙΑ")
    for decision in dv.search.iter_advanced(contracts,
                                            from_issue_date="2024-01-01",
                                            to_issue_date="2024-12-31",
                                            max_results=100):
        print(decision.ada, decision.amount(), decision.subject)
```

All read endpoints are public — no credentials required.

## Why this exists

The API has two behaviours that quietly corrupt naive harvesting, and both are handled
for you.

**The 180-day clamp.** Ask for more than 180 days and the server does not complain — it
rewrites the end of your range to `from + 180 days` and returns a subset. Measured
against the live API for one municipality across 2023:

| Request | Decisions returned |
| --- | --- |
| One `search` call for `2023-01-01 … 2023-12-31` | **1 437** (server clamped to 30 Jun) |
| `search.iter()` / `search.count()` for the same range | **3 359** |

**The page-size cap.** `size` is capped at 500 anonymously, 1 000 authenticated; larger
values are silently clamped. Pagination follows the size the server actually used, so a
clamped request cannot make a harvest stop after one page.

## What you get

- **A real connection object** — pooled session, Basic auth, retries with jittered
  backoff, a courtesy rate limiter, and a typed exception hierarchy.
- **Complete endpoint coverage** — every endpoint in the published documentation,
  including submit / publish / corrected copy / revocation.
- **Typed models** — frozen dataclasses, epoch-millis converted to timezone-aware
  Europe/Athens datetimes, the untouched payload always kept in `.raw`, and unknown
  fields never break parsing.
- **A structural query builder** — `Q` composes advanced-search expressions with `&` and
  `|`, parenthesising by precedence, so unbalanced brackets and quote-injection from
  Greek free text are impossible.
- **Automatic window splitting and pagination** — sweep any date range; memory stays flat.
- **id → label resolution** with an optionally disk-backed cache.
- **Verified downloads** — checks the SHA-1 Diavgeia publishes, and never leaves a partial
  file behind.
- **Resumable bulk harvest** to JSONL, plus CSV (Excel-safe UTF-8 BOM) and pandas export.
- **Local payload validation** against a decision type's extra-field schema, before you
  publish.
- **Resumable cursors** — hold a position in a sweep, encode it to an opaque token, pick
  it up in another process.
- **A container protocol** — `dv.organizations["6067"]`, `[0:10]`, `len()`, iteration,
  accent-folded `find()`, and IPython tab-completion.
- **Archive export** — a folder tree of metadata, signed PDFs and attachments, in the
  layout you choose (by year, by body, by type, or your own), resumable.
- **A CLI**: `diavgeia search`, `get`, `doc`, `harvest`, `orgs`, `types`, `dict`.

## Quick tour

```python
from diavgeia import Diavgeia, Q

dv = Diavgeia(cache_dir="~/.cache/diavgeia")

# search
page = dv.search.simple(org="6067", from_issue_date="2024-01-01",
                        to_issue_date="2024-03-31", size=100)
page.total, page.info.query      # info.query is what the server ACTUALLY ran

# stream a multi-year range; windows and pages handled for you
for d in dv.search.iter(org="6067", from_issue_date="2020-01-01",
                        to_issue_date="2024-12-31"):
    ...

# one decision, its history, and its signed PDF
d = dv.decisions.get("ΡΒΠΕ7ΛΞ-Ν1Ζ")
dv.decisions.version_log(d.ada)
dv.decisions.download_document(d.ada, "out/", verify_checksum=True)

# org chart (accent- and case-insensitive name search)
dv.organizations.find("δημος γορτυνασ")
dv.organizations.units("6067")
dv.organizations.signers("6067")

# reference data
dv.types.details("Β.1.3").extra_fields
dv.dictionaries.get("FEKTYPES")

# collections behave like Python containers
len(dv.organizations); dv.organizations["6067"]; dv.organizations[0:5]

# cursors: hold a position and resume it later
cursor = dv.search.cursor(org="6067", from_issue_date="2020-01-01",
                          to_issue_date="2024-12-31")
token = cursor.to_token()
cursor = dv.search.resume(token)

# a full archive: metadata + PDFs + attachments, foldered how you like
dv.export_archive("archive/", org="6067", from_issue_date="2023-01-01",
                  to_issue_date="2024-12-31", layout="org/year", attachments=True)

# resolve ids to names, and export
dv.describe(d)
dv.export_csv(dv.search.all(org="6067", from_issue_date="2024-01-01",
                            to_issue_date="2024-06-30"), "acts.csv")
```

## Command line

```bash
diavgeia get ΡΒΠΕ7ΛΞ-Ν1Ζ --labels
diavgeia search --org 6067 --from 2024-01-01 --to 2024-06-30 -n 20
diavgeia harvest acts.jsonl --from 2023-01-01 --to 2023-12-31 --org 6067
diavgeia orgs "δημος γορτυνασ"
diavgeia types Β.1.3
```

## Publishing

Requires Basic Authentication as a user with publishing rights on the issuing body.

```python
dv = Diavgeia(environment="test", username="10599_api", password="…")

dv.validate_metadata(metadata)                            # local schema check
dv.decisions.verify(metadata, document="decision.pdf")    # server dry-run
decision = dv.decisions.publish(metadata, document="decision.pdf")
print(decision.ada)
```

Also available: `submit()`, `update_published()`, `corrected_copy()` (ορθή επανάληψη) and
`request_revocation()`.

## Requirements

Python 3.9+ and `requests`. `pip install 'diavgeia[pandas]'` adds DataFrame export.

## Links

- **Documentation and source**: <https://github.com/infimum/diavgeia-client>
- **Upstream API reference**: <https://diavgeia.gov.gr/api/help>
- **Official sample clients**: <https://github.com/diavgeia>

MIT licensed. Not an official product of the Greek Ministry of Digital Governance.
