Package: nevermined-metadata-driver-elasticsearch
metadata-driver-elasticsearch🐳Elasticsearchdriver for MetadataDB (Python).nevermined.ioTable of ContentsFeaturesPrerequisitesQuickstartEnvironment variablesQueriesFeaturesElasticsearch driver to connect implementing MetadataDB.PrerequisitesYou should have running a elasticsearch instance.QuickstartFirst of all we have to specify where is allocated our config.
To do that we have to pass the following argument:--config=/path/of/my/configIf you do not provide a configuration path, by default the config is expected in the config folder.In the configuration we are going to specify the following parameters to[metadatadb]enabled=true# In order to enable or not the pluginmodule=elasticsearch# You can use one the plugins already created. Currently we have elasticsearch, mongodb and bigchaindb.module.path=# You can specify the location of your custom plugin.db.hostname=localhost# Address of your Elasticsearch instance.db.port=9200# Port of your Elasticsearch rest API.db.username=elastic# If you are using authentication, elasticsearch username.db.password=changeme# If you are using authentication, elasticsearch password.db.index=metadatadb# Elasticsearch index nameOnce you have defined this the only thing that you have to do it is use it:metadatadb=MetadataDB(conf)metadatadb.write({"value":"test"},id)Environment variablesWhen you want to instantiate an Metadatadb plugin you can provide the next environment variables:$CONFIG_PATH$MODULE$DB_HOSTNAME$DB_PORT$DB_INDEX$DB_USERNAME$DB_PASSWORDQueriesCurrently we are supporting a list of queries predefined in order to improve the search:
All this queries present a common format:query:{"name":[args]}This queries are the following:priceCould receive one or two parameters. If you only pass one assumes that your query is going to start from 0 to your value.Next query:query:{"price":[0,10]}It is transformed to:{"service.metadata.base.price":{"$gt": 0, "$lt": 10}}licenseIt is going to retrieve all the documents with license that you are passing in the parameters,
if you do not pass any value retrieve all.{"license":["Public domain", "CC-YB"]}typeIt is going to check that the following service types are included in the ddo.{"type":["Access", "Metadata"]}sampleCheck that the metadata include a sample that contains a link of type sample. Do not take parameters.{"sample":[]}categoriesRetrieve all the values that contain one of the specifies categories.{"categories":["weather", "meteorology"]}createdRetrieve all the values that has been created between two dates.{"created":['2016-02-07T16:02:20Z', '2016-02-09T16:02:20Z']}dateCreatedRetrieve all the values that has been created between two dates.{"dateCreated":['2016-02-07T16:02:20Z', '2016-02-09T16:02:20Z']}datePublishedRetrieve all the values that has been published between two dates.{"datePublished":['2016-02-07T16:02:20Z', '2016-02-09T16:02:20Z']}updatedFrequencyRetrieve all the values that contain one of the specifies updated frecuencies.{"updatedFrequency":["monthly"]}text
Retrieve all the values that match with the text sent.{"text":["weather"]}did
Retrieve all the matching dids.{"did":["did:nv:1..,did:nv:2.."]}TestingAutomatic tests are setup via Github actions.
Our test use pytest framework.New VersionThebumpversion.shscript helps to bump the project version. You can execute the script using as first argument {major|minor|patch} to bump accordingly the version.LicenseCopyright 2020 Keyko GmbH
This product includes software developed at
BigchainDB GmbH and Ocean Protocol (https://www.oceanprotocol.com/)

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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   http://www.apache.org/licenses/LICENSE-2.0

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