wfs3-experiment

#

Installation

Dir layout

In /home/ogg/pygeoapi

• config/ : all config files (local.config.yml and openapi.yml)
• git : master from https://github.com/geopython/pygeoapi.git
• justb4.git fork with fixes from https://github.com/justb4/pygeoapi

Get Code

git clone https://github.com/geopython/pygeoapi.git  pygeoapi.git

# NB latest master did not work (see below) on apr 5, 2019.

# Fixed in Fork: 
https://github.com/justb4/pygeoapi

Setup Python3 VirtualEnv

Try with Python 3.6.7 on clean Ubuntu 18.04.

# Pre-install
sudo apt install virtualenv
sudo apt install sqlite3
sudo apt install libsqlite3-dev     # ??
sudo apt-get install libspatialite7 # ??
sudo apt-get install libsqlite3-mod-spatialite 

# Using virtualenv
mkdir pygeoapi
cd pygeoapi
virtualenv -p python3 venv3.6
. venv3.6/bin/activate

Install

git clone https://github.com/geopython/pygeoapi.git  git
cd git
pip install --upgrade pip
pip install -r requirements.txt
pip install -r requirements-dev.txt
pip install -e .

Configure

# maak eigen config dir
mkdir config
cp git/pygeoapi-config.yml config/local.config.yml
# edit local.config.yml
#     url: http://wfs3.opengeogroep.nl:5000/
# comment out many providers in particular ElasticSearch deps

export PYGEOAPI_CONFIG=/home/ogg/pygeoapi/config/local.config.yml
export PYGEOAPI_OPENAPI=/home/ogg/pygeoapi/config/openapi.yml

# generate OpenAPI Document ; must be in git dir!
cd git
pygeoapi generate-openapi-document -c ${PYGEOAPI_CONFIG} > ${PYGEOAPI_OPENAPI}

Serve

cd git
pygeoapi serve

Findings

Eleastic serarch error

• need to comment out eleasticsearch from config.yml

GeoPackage error

pygeoapi generate-openapi-document -c local.config.yml > openapi.yml
/Users/just/project/ogg/wfs3/pygeoapi.git/pygeoapi/flask_app.py:49: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
  CONFIG = yaml.load(fh)
/Users/just/project/ogg/wfs3/pygeoapi.git/pygeoapi/openapi.py:440: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
  s = yaml.load(ff)
Traceback (most recent call last):
  File "/Users/just/project/ogg/wfs3/pygeoapi.git/pygeoapi/provider/geopackage.py", line 124, in __load
    conn.enable_load_extension(True)
AttributeError: 'sqlite3.Connection' object has no attribute 'enable_load_extension'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/just/.pyenv/versions/pygeoapi37/bin/pygeoapi", line 11, in <module>
    load_entry_point('pygeoapi', 'console_scripts', 'pygeoapi')()
  File "/Users/just/.pyenv/versions/3.7.1/envs/pygeoapi37/lib/python3.7/site-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/Users/just/.pyenv/versions/3.7.1/envs/pygeoapi37/lib/python3.7/site-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/Users/just/.pyenv/versions/3.7.1/envs/pygeoapi37/lib/python3.7/site-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/Users/just/.pyenv/versions/3.7.1/envs/pygeoapi37/lib/python3.7/site-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/Users/just/.pyenv/versions/3.7.1/envs/pygeoapi37/lib/python3.7/site-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/Users/just/.pyenv/versions/3.7.1/envs/pygeoapi37/lib/python3.7/site-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/Users/just/project/ogg/wfs3/pygeoapi.git/pygeoapi/openapi.py", line 441, in generate_openapi_document
    click.echo(yaml.safe_dump(get_oas(s), default_flow_style=False))
  File "/Users/just/project/ogg/wfs3/pygeoapi.git/pygeoapi/openapi.py", line 426, in get_oas
    return get_oas_30(cfg)
  File "/Users/just/project/ogg/wfs3/pygeoapi.git/pygeoapi/openapi.py", line 201, in get_oas_30
    p = load_plugin('provider', cfg['datasets'][k]['provider'])
  File "/Users/just/project/ogg/wfs3/pygeoapi.git/pygeoapi/plugin.py", line 89, in load_plugin
    plugin = class_(plugin_def)
  File "/Users/just/project/ogg/wfs3/pygeoapi.git/pygeoapi/provider/geopackage.py", line 69, in __init__
    self.cursor = self.__load()
  File "/Users/just/project/ogg/wfs3/pygeoapi.git/pygeoapi/provider/geopackage.py", line 127, in __load
    raise ProviderConnectionError()
pygeoapi.provider.base.ProviderConnectionError
Exception ignored in: <function GeoPackageProvider.__del__ at 0x106d5c6a8>
Traceback (most recent call last):
  File "/Users/just/project/ogg/wfs3/pygeoapi.git/pygeoapi/provider/geopackage.py", line 259, in __del__
    self.__unload()
  File "/Users/just/project/ogg/wfs3/pygeoapi.git/pygeoapi/provider/geopackage.py", line 184, in __unload
    self.cursor.execute("DROP TABLE IF EXISTS {}".format(self.view))
AttributeError: 'GeoPackageProvider' object has no attribute 'cursor'

Solution: install at least:

sudo apt-get install libsqlite3-mod-spatialite

Invalid Format error on all requests

Opened issue: https://github.com/geopython/pygeoapi/issues/89

Fixed in fork: rewrite check_format() function:

https://github.com/justb4/pygeoapi/blob/master/pygeoapi/api.py#L635