* Created localization (l10n) module + tests. Added l10n support to API and plugins (wip).
* Big refactor:
* All routed API methods are now decorated by @pre_process (consistency) and no longer have a headers+format argument but a request argument (**kwargs also removed)
* The pre_process decorator turns an incoming Flask/Starlette request into a generic APIRequest instance
* The new APIRequest class extracts all relevant info (params, data, locale, etc.) from the request and exposes them as properties
* Removed a lot of boilerplate (i.e. format checking) and wrapped that into methods
* Updated server-specific API calls in each route method (pass entire request object, not headers and query params)
* Several improvements and fixes:
* Updated OpenAPI page with "l" query param
* Added example translations (metadata)
* Changed plugin signature: added explicit locale attribute (instead of **kwargs)
* Moved locale processing to get_plugin_locale() function in l10n module
* API should pass raw requested locale to plugins, locale should always be set
* Fixed API tests and added APIRequest tests
* Prepared utils.py for Jinja2 i18n extension
* Rebased on commit b40297a8 and fixed compatibility with #661 and #662
* Updated documentation for language support
* Rebased and fixed compatibility with PR #658:
* Fixed EDR provider signature (added locale)
* Fixed EDR API routes and query function (and improved parameter-name handling)
* Fixed EDR tests
* Translate entire config in render_j2_template for requested locale:
* Added new translate_dict function to l10n module (+ tests)
* Updated all render_j2_template calls with locale parameter
* Updated pygeoapi-test-config.yml with some language structs
* Minor improvements
* support both 'language' and 'languages' property in server config and provider definitions
* renamed and modified translate_dict() to more generic translate_struct() function (l10n module)
* remove Content-Language header from provider responses if provider has no language support and format is json(ld)
* updated tests
* Leave provider locale handling to API
* Moved code to determine locale from providers to API class (and remove for formatters and processes)
* Removed locale parameter from plugin __init__ signatures
* Removed locale parameter from load_plugin()
* Added **kwargs to provider implementations for get, query, get_metadata, get_coverage_domainset and get_coverage_rangetype method signatures
* Added language=<locale> to all API calls to provider get, query, get_metadata, get_coverage_domainset and get_coverage_rangetype methods
* Use 'lang' instead of 'l' as language query parameter
* Updated Open API
* Updated documentation
* Fixed tests
* Implemented requested PR changes:
* Added usage examples to the APIRequest docstring
* Removed language support from coverage functions
* Updated plugins.rst and language.rst to match new behavior
* Removed language struct from resource links in pygeoapi-config.yml
* Rebased on latest master (fixed test_api.py)
* Rebased and applied fixes:
* Data property in APIRequest now is an awaitable attribute (fixed for Starlette compatibility)
* Named references to 'l' parameter to 'lang'
* Final changes/improvements:
* Make sure that Content-Language is always set;
* Added more tests to ensure that the default language returned is the first configured language (if no language was requested by the user);
* Updated docs;
* Replaced re-occuring strings with constants in api.py;
* Fixed Flake8 checks.
* add missing async to starlette routes (#704)
Co-authored-by: Tom Kralidis <tomkralidis@gmail.com>
Vincent Privat