(back) Suggester V1: Process artist data

(cherry picked from commit 02f5705fde37e1aaef5c68de62aafe45fc86d490)

suggester.es

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+DELETE itunes-suggest
+
+PUT /itunes-suggest
+{
+    "settings": {
+        "analysis": {
+            "filter": {
+                "french_stop": {
+                    "type": "stop",
+                    "stopwords": "_french_"
+                },
+                "english_stop": {
+                    "type": "stop",
+                    "stopwords": "_english_"
+                }
+            },
+            "analyzer": {
+                "artist_name": {
+                    "tokenizer": "standard",
+                    "filter": [
+                        "lowercase",
+                        "asciifolding",
+                        "french_stop",
+                        "english_stop"
+                    ]
+                }
+            }
+        }
+    },
+    "mappings": {
+        "properties": {
+            "artist_suggest": {
+                "type": "completion"
+            },
+            "artist": {
+                "type": "keyword"
+            }
+        }
+    }
+}
+
+GET itunes-suggest/_analyze
+{
+    "analyzer": "artist_name",
+    "text": "the servent"
+}
+
+POST itunes-suggest/_search
+{
+  "suggest": {
+    "name-suggest": {
+      "prefix": "sou",
+      "completion": {
+          "field": "artist_suggest"
+      }
+    }
+  }
+}

suggester.py

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+import requests
+import json
+
+ELS_URL ='http://localhost:9200'
+INDEX = 'itunes-suggest'
+
+def get_tokens(data: str) -> list:
+    query = {
+        "analyzer": "artist_name",
+        "text" : data
+    }
+
+    url = '{}/{}/_analyze'.format(ELS_URL, INDEX)
+    r = requests.get(url, json=query)
+    return [t['token'] for t in r.json()['tokens']]
+
+def post_artist(artist: str, sugget_input: list) -> bool:
+    element = { "artist_suggest" : sugget_input, "artist": artist }
+
+    url = '{}/{}/_doc'.format(ELS_URL, INDEX)
+    resp = requests.post(url, json=element)
+    if resp.status_code != 201:
+        print('ELS Response KO')
+        print(resp.status_code)
+        print(resp.text)
+        return
+
+    el_id = resp.json()['_id']
+    print('Post_element - Element created: ' + el_id)
+    return el_id
+
+
+# Using readlines()
+itunes_file = open('/home/budd/workspace/iTunes/es-artists.json', 'r')
+lines = itunes_file.readlines()
+
+# Strips the newline character
+for line in lines:
+    data = json.loads(line)
+    if "Artist" in data:
+        # print(data)
+        input = get_tokens(data['Artist'])
+        post_artist(data['Artist'], input)