From 103f75a6e6af836f7a4afa5746847ef7ce63591d Mon Sep 17 00:00:00 2001
From: Martin Czygan <martin.czygan@gmail.com>
Date: Tue, 15 Dec 2020 04:09:26 +0100
Subject: include matching (stub)

---
 Pipfile              |   2 +
 Pipfile.lock         | 501 ++++++++++++++++++++++++++++-----------------------
 fuzzycat/matching.py |  91 ++++++++++
 setup.py             |   3 +
 4 files changed, 376 insertions(+), 221 deletions(-)
 create mode 100644 fuzzycat/matching.py

diff --git a/Pipfile b/Pipfile
index 28fe393..5b190f9 100644
--- a/Pipfile
+++ b/Pipfile
@@ -24,6 +24,8 @@ nltk = "*"
 regex = "*"
 pytest-cov = "*"
 glom = "*"
+elasticsearch = "*"
+elasticsearch-dsl = "*"
 
 [requires]
 python_version = "3.7"
diff --git a/Pipfile.lock b/Pipfile.lock
index 923ff3b..6f0fb6e 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "2302ed99d06867bc58dd112e5cc4cff090efda5f8be705ba1124c29771e31c82"
+            "sha256": "98b3f52b4b9617c7b902cf7288f34a4de6653446638e259de07cc0b639aa10b1"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -26,22 +26,22 @@
         },
         "blis": {
             "hashes": [
-                "sha256:19557b14763253ca3d4f6cfc9c9fe2eed3d65db14fa273ced8b0c17ce2bfda4a",
-                "sha256:221eef1b351063b0eb6682c7af2916884ce6c5015d95f6a28b7e45bea35e493c",
-                "sha256:3917491f366467a7339997dcfe501a282409cc50f461c6e1491d342a424442f1",
-                "sha256:55bacf2a1eb72ae728b665ac46433bcfee670de84f9bdf99987adf836fd92309",
-                "sha256:59cc549e904fd4169105f92d6fac94495eca228c357232f29444ae79981af974",
-                "sha256:6e65ef84205fadc1c41e59bd9d0d67fca8c41d463761b2dfe447003840172062",
-                "sha256:7f3e9564023e59a0abe9642a94408b3d2fe05ff205d800d512a67828b61819a8",
-                "sha256:9130e194f01124975a7bd76b8b65550f1f308610d596ec1992280b656e0c11be",
-                "sha256:ae53b880a1bca8115f1edccfa6e8800661c71347f9b75ed3f1af8549f080dd6b",
-                "sha256:b0fa63e4ca21a189698ca764367ae91ccba2274d885563c81205c1ac09f36fa6",
-                "sha256:c04165d196e16f652d21c2d1403a55fbae8721d74dbca1668fdfec6766687a12",
-                "sha256:ca0bccd31a216931ada487264ad07fa64a0b5a42b51c80cdebb1d3764b813d3b",
-                "sha256:e4e8b0dfd32e12f6d380b77a916ef15793756b856d8b00453a7d0ed4ba29f9ea"
+                "sha256:168fd7bd763ebe529aa25a066d3a6b89f4c3f492f6297f881df6942741b95787",
+                "sha256:4222bbc7b9c47bc3cf6f36f2241862c1512ca7ebac3828267a2e05ef6c47fc54",
+                "sha256:445e4838b809e99677f5c0982fb9af320f0d91328fb28c8097e5f1173c4df9d6",
+                "sha256:5b403deb2ad5515e1edb3c0867bccb5b974b461f24283d9219a3a761fd6dacc6",
+                "sha256:5c1a2023f7d8431daa8d87d32f539bb23e1a009500c37f9eba0ac7b3f20f73eb",
+                "sha256:5ecddc4c6daf80558154b091db0a9839bb15dbe65d2906a543a73b93fbce4f73",
+                "sha256:6814991b3e3193db4f9b2417174c6f24b9c0197409d864fa7628583bd2df1f0f",
+                "sha256:78a8e0ee72a42c3b2f5b9114500a781119995f76fa6c21d4b02c6fb9c21df2cc",
+                "sha256:7daa615a97d4f28db0f332b710bfe1900b15d0c25841c6d727965e4fd91e09cf",
+                "sha256:94890b2296f1449baa56aede46627ea7fc8de11c788f9c261ee38c2eb4a2cc7d",
+                "sha256:9f9b829480c12fc834549306821e5c51cb28b216ca5f88c5b2cfedbeb9daf67d",
+                "sha256:c2d8064217c326dd9a0dcbae294ffe8557263e2a00d76101ffa222b9c9d9c62d",
+                "sha256:d717b5dea407aac89a646908e7d9849105abab9c88a539c120518c200f899f4e"
             ],
             "markers": "python_version >= '3.6'",
-            "version": "==0.7.3"
+            "version": "==0.7.4"
         },
         "boltons": {
             "hashes": [
@@ -60,10 +60,10 @@
         },
         "certifi": {
             "hashes": [
-                "sha256:1f422849db327d534e3d0c5f02a263458c3955ec0aae4ff09b95f195c59f4edd",
-                "sha256:f05def092c44fbf25834a51509ef6e631dc19765ab8a57b4e7ab85531f0a9cf4"
+                "sha256:1a4995114262bffbc2413b159f2a1a480c969de6e6eb13ee966d470af86af59c",
+                "sha256:719a74fb9e33b9bd44cc7f3a8d94bc35e4049deebe19ba7d8e108280cfd59830"
             ],
-            "version": "==2020.11.8"
+            "version": "==2020.12.5"
         },
         "chardet": {
             "hashes": [
@@ -122,21 +122,37 @@
         },
         "cymem": {
             "hashes": [
-                "sha256:02c3994ee57003dd57d9a34417beb9597e51176e9378a757344347b72510ce8d",
-                "sha256:0f169ee07f30c2674ca811693cb13857e236dd7f92b4bc47b0f2bb201e27cc93",
-                "sha256:2baabeb408e4aaa0f51d7f6d8c53dd05f56decf34fb3f1f3180abe8755815890",
-                "sha256:2d40dfa4b4edf64541192966c67c2706e5058a9c6ce0bdc356e4d6ef1935c9ae",
-                "sha256:45b01ee36ce15aab6df041b4128de38016e3934274b934c44fec43de5100b64c",
-                "sha256:58f49a51bd8b76b260f38f8274ec2e4613c328423e0b543a503834de32dfa3c4",
-                "sha256:60b5d969f305a7598d86f34c93c37eb52b3388681e70b98081864f0f185da768",
-                "sha256:65e5759179b311b8350b82b29744324366e270f96095b16a8e249c73c3f9273f",
-                "sha256:7bb5791fde8dffa02005f158f5c98d64962adaf8501dac7a9b8156b8767c9a34",
-                "sha256:a61684d01a1413049e9874e073c9577d406d866eabe0d167c5ee15bbeae090a6",
-                "sha256:a61a4702dcc50ebd31fb86a90d1aba5526245af592d756c39c63d58d53360afc",
-                "sha256:ae283889f6f0036fb34d12358fe052d4ea9f5724f05177317f33f302f304b47c",
-                "sha256:f8f280f0aef46d32655b1b24ff049bea83b63365604b6c2decb112b44ed851fe"
-            ],
-            "version": "==2.0.4"
+                "sha256:01d3ea159f7a3f3192b1e800ed8207dac7586794d903a153198b9ea317f144bc",
+                "sha256:190e15d9cf2c3bde60ae37bddbae6568a36044dc4a326d84081a5fa08818eee0",
+                "sha256:1f0eb9b3d03623dcfc746cf8bff0663b0e347f4aea759965c8932087a0307ee9",
+                "sha256:3d48902d7441645835fefc7832df49feb5362c7300d182475b63a01d25ae44ef",
+                "sha256:4bd023c2477198b39b660c2a6b0242880649765ecee8461688a57fd4afd2bfc0",
+                "sha256:734d82d0d03c2ceb929bc1744c04dbe0a105e68a4947c8406056a36f86c41830",
+                "sha256:8ea57e6923f40eb51012352161bb5707c14a5a5ce901ff72021e59df06221655",
+                "sha256:9d72d69f7a62a280199c3aa7bc550685c47d6d0689b2d299e6492253b86d2437",
+                "sha256:a440d63577fcdc9c528c9cc026b7b4f8648193bac462bc0596c9eac10f9fba62",
+                "sha256:ce1e81c1d031f56b67bac2136e73b4512cbc794706cd570178972d54ba6115d8",
+                "sha256:d19f68b90411e02ab33b1654118337f96f41c13a3cd00c4f44f7abed2bc712e7",
+                "sha256:d307f7f6230d861a938837cae4b855226b6845a21c010242a15e9ce6853856cd",
+                "sha256:f2167c9959fcd639b95d51fa5efaa7c61eef8d686cb75a25412a914f428ce980"
+            ],
+            "version": "==2.0.5"
+        },
+        "elasticsearch": {
+            "hashes": [
+                "sha256:4ebd34fd223b31c99d9f3b6b6236d3ac18b3046191a37231e8235b06ae7db955",
+                "sha256:a725dd923d349ca0652cf95d6ce23d952e2153740cf4ab6daf4a2d804feeed48"
+            ],
+            "index": "pypi",
+            "version": "==7.10.1"
+        },
+        "elasticsearch-dsl": {
+            "hashes": [
+                "sha256:0ed75f6ff037e36b2397a8e92cae0ddde79b83adc70a154b8946064cb62f7301",
+                "sha256:9390d8e5cf82ebad3505e7f656e407259cf703f5a4035f211cef454127672572"
+            ],
+            "index": "pypi",
+            "version": "==7.3.0"
         },
         "face": {
             "hashes": [
@@ -145,6 +161,14 @@
             ],
             "version": "==20.1.1"
         },
+        "fatcat-openapi-client": {
+            "hashes": [
+                "sha256:2dfec611d1eb8396ba8812ea3c6dfdc250b098870aafcecf895ae31fa2a90c5f",
+                "sha256:fd7f3089d3cc223c1b560125b688e8ce0393ba76edfe87506464db7a1e38d0b1"
+            ],
+            "markers": "python_full_version >= '3.5.0'",
+            "version": "==0.3.2"
+        },
         "ftfy": {
             "hashes": [
                 "sha256:51c7767f8c4b47d291fcef30b9625fb5341c06a31e6a3b627039c706c42f3720"
@@ -196,33 +220,33 @@
         },
         "joblib": {
             "hashes": [
-                "sha256:698c311779f347cf6b7e6b8a39bb682277b8ee4aba8cf9507bc0cf4cd4737b72",
-                "sha256:9e284edd6be6b71883a63c9b7f124738a3c16195513ad940eae7e3438de885d5"
+                "sha256:75ead23f13484a2a414874779d69ade40d4fa1abe62b222a23cd50d4bc822f6f",
+                "sha256:7ad866067ac1fdec27d51c8678ea760601b70e32ff1881d4dc8e1171f2b64b24"
             ],
             "markers": "python_version >= '3.6'",
-            "version": "==0.17.0"
+            "version": "==1.0.0"
         },
         "murmurhash": {
             "hashes": [
-                "sha256:01f1aefaeaa8abf5ad102064bdbb7c1a2542240b105c0a13ee0cc81aea3dc081",
-                "sha256:2290e509ecbb8e79903e7859d9ec57b26f2019a8ffcaefab56862aa05f09e481",
-                "sha256:3736e65a926e4093e2adb9397394fb01b193b37b93b8a3eb16053401dea36840",
-                "sha256:40172b79dcccbf36f861429102df4bdb16e22dc14aecfe8c83fd414d92787516",
-                "sha256:422084ac1fe994cb7c893689c600923dee4e2c3fc74e832f7d9a8d6fdcc362d5",
-                "sha256:64bdc91f13cbe24f5f631e82d3c1a8f621ee7a8ce4965cb4a50a29ab6363fa95",
-                "sha256:7cfeaf95bc2e9192b9f4d44a71ad117462578cb021c441fc8938cc809e518a0f",
-                "sha256:81998ffd671164e9c4bc48cba61d912c1cb6555226177985045b8c9845772817",
-                "sha256:9086d0589b6afe24601c1d3e8eb55d9705fdb3d86c24fdfd97a85a3063274edf",
-                "sha256:92145fb1f3ae037c7a3b192ef1beca69c66389fca1e48ca35da56cae899a6e9f",
-                "sha256:9ae4a4e27cbfbc777cbf88ce863c8dc4ee3d9a6081a9a6a579592e25ebd874a5",
-                "sha256:aebeb840c68af1998cb94dcae213fed3f62041cf21e9adfe41288a482a2a8f35",
-                "sha256:bf8edbbad46a27fd32f44a7dec287cc012ce14c36eafba2e6c46564bfc3bfbb5",
-                "sha256:bfc0c9cf921045e001fe4fab32c77cf8a8c4f94fb1445d348df7d7ec862bb3ee",
-                "sha256:c580e2df61bc9bdcd709edb01139070218071ae4768f4f7e81f6df773e1578aa",
-                "sha256:ce523418041baac542aaf48612d6fb47be3e14dffdc1273ce32197a1be565369",
-                "sha256:de421d1e615d7c6560b3bfa447487bb6cd413ec94a7430b8a5c465abea795f8a"
-            ],
-            "version": "==1.0.4"
+                "sha256:023391cfefe584ac544c1ea0936976c0119b17dd27bb8280652cef1704f76428",
+                "sha256:23c56182822a1ed88e2a098ac56958dfec380696a9a943df203b9b41e4bcf5e4",
+                "sha256:76251513a2acad6c2e4b7aeffc5fcb807ee97a66cad5c2990557556555a6b7e9",
+                "sha256:81474a45c4074637a6dfc8fea4cdebf091ab5aa781c2cfcb94c43b16030badd7",
+                "sha256:8381172e03c5f6f947005fb146a53c5e5a9e0d630be4a40cbf8838e9324bfe1c",
+                "sha256:892749023da26420d194f37bfa30df1368aaac0149cfa3b2105db36b66549e37",
+                "sha256:98ec9d727bd998a35385abd56b062cf0cca216725ea7ec5068604ab566f7e97f",
+                "sha256:99e55488476a5f70e8d305fd31258f140e52f724f788bcc50c31ec846a2b3766",
+                "sha256:a9bd2312996e6e47605af305a1e5f091eba1bdd637cdd9986aec4885cb4c5530",
+                "sha256:add366944eb8ec73013a4f36e166c5a4f0f7628ffe1746bc5fe031347489e5e8",
+                "sha256:b9292c532538cf47846ca81056cfeab08b877c35fe7521d6524aa92ddcd833e2",
+                "sha256:d4c3a0242014cf4c84e9ea0ba3f13b48f02a3992de3da7b1116d11b816451195",
+                "sha256:d58315961dc5a5e740f41f2ac5c3a0ebc61ef472f8afeb4db7eeb3b863243105",
+                "sha256:ef8819d15973e0d6f69688bafc097a1fae081675c1de39807028869a1320b1a9",
+                "sha256:f00321998f0a6bad3fd068babf448a296d4b0b1f4dd424cab863ebe5ed54182f",
+                "sha256:fd17973fd4554715efd8d86b3e9200358e49e437fdb92a897ca127aced48b61c",
+                "sha256:fed7578fbaa6c301f27ed80834c1f7494ea7d335e269e98b9aee477cf0b3b487"
+            ],
+            "version": "==1.0.5"
         },
         "nltk": {
             "hashes": [
@@ -273,11 +297,11 @@
         },
         "packaging": {
             "hashes": [
-                "sha256:4357f74f47b9c12db93624a82154e9b120fa8293699949152b22065d556079f8",
-                "sha256:998416ba6962ae7fbd6596850b80e17859a5753ba17c32284f67bfff33784181"
+                "sha256:24e0da08660a87484d1602c30bb4902d74816b6985b93de36926f5bc95741858",
+                "sha256:78598185a7008a470d64526a8059de9aaa449238f280fc9eb6b13ba6c4109093"
             ],
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==20.4"
+            "version": "==20.8"
         },
         "plac": {
             "hashes": [
@@ -296,61 +320,61 @@
         },
         "preshed": {
             "hashes": [
-                "sha256:13a779205d55ce323976ac06df597f9ec2d6f0563ebcf5652176cf4520c7d540",
-                "sha256:13de7525696fb7b1ab5d0dabca3cef49e17a49e662b9f651549ae2d953c3ad35",
-                "sha256:15beb09341daab611fa3db79db7f0bcc7b2efdc5a99f417a6903e3d9d68a92db",
-                "sha256:1df1b4452cbf4b8a36475e3025d2cfc3d44d1e1c5305163e119442a331b173ae",
-                "sha256:496edf5de0065481272914f02173d80dc80d6dccf2372af67d8d62b415ac3aa9",
-                "sha256:4e71b88ae027bd23d40f4f7b3e73d93479346abfec78cadea312d11d610e90f9",
-                "sha256:606516fd7166ac42406d1b54941aa2b443f4fa1eee11edfa37d9646ac36010a1",
-                "sha256:6dd33a8d88cbe77ef5592366891c491462225b7cb66499e35d63e4f9900e16ff",
-                "sha256:717b76ebbda8dd458f0f345f514fb9b62a1507352555a00b9332eb54cc4f35d4",
-                "sha256:8604bd028e94539061441cef926293efcdd9fd0b7a1f5bc4ac3cdb6400c83a9b",
-                "sha256:9c04c80314423e18fcfb1a7198c98bb8885d3b843546561be96cba45d8d17ad1",
-                "sha256:a11cb04a47cc1ff08765a8cd2ee1849e49970dda85c73c2a72f7e130ba6073ba",
-                "sha256:c777b7603755e9cca67067d4382bde8ba01221e3f6b06f65ba832fc6135258d9",
-                "sha256:cbf3d38278fb6d20dd67e624651e296d0c734c4107f1c1a67c97ee578ce6e813",
-                "sha256:dbbf660802ce87bcff683e89297dbf52a83ea260b94ec56ef1c2996bf967ad1a",
-                "sha256:eb4cd05415ce15a483eb2526304df4f98a17aea6ba80564fcdbf55f718f661a0",
-                "sha256:f415f994f422125d7c5a4718a3e4f57f0dfe0bde719799c5128761ab90b1f3b6"
-            ],
-            "version": "==3.0.4"
+                "sha256:12cbe1e378b4f1c6b06f5e4130408befe916e55ea1616e6aa63c5cd0ccd9c927",
+                "sha256:1bdededa7fd81f26a42bc9d11d542657c74746b7ea7fc2b2ca6d0ddbf1f93792",
+                "sha256:1ce0846cb7ebb2ea913d44ec2e296098c285443ecdea80ddf02656bbef4deacb",
+                "sha256:30f0c8ea85113d0565a1e3eb6222d00513ec39b56f3f9a2615e304575e65422e",
+                "sha256:56b9603517bb2a364418163236d6a147a1d722ff7546cbe085e76e25ae118e89",
+                "sha256:572899224578d30f6a67fadecb3d62b824866b4d2b6bad73f71abf7585db1389",
+                "sha256:5e06a49477bd257eea02bf823b5d3e201d00a19d6976523a58da8606b2358481",
+                "sha256:67c11e384ce4c008bc487ba3a29bafdfe038b9a2546ccfe0fe2160480b356fed",
+                "sha256:6e833f1632a1d0232bdc6df6c3542fb130ef044d8656b24576d9fd19e5f1e0d1",
+                "sha256:6f126bcc414a0304b54956f9dac2628a0f9bef1657d1b3a3837fc82b791aa2a1",
+                "sha256:85074eebf90a858a6b68242f1ae265ca99e1af45bf9dafcb9a83d49b0815a2e1",
+                "sha256:8a3adffde3126c2a0ab7d57cab1d605cb5f63da1ba88088ad3cf8debfd9aa4dc",
+                "sha256:8a560850b8c53c1487ba51c2b0f5769535512b36d3b129ad5796b64653abe2f9",
+                "sha256:9ebf444f8487782c84d7b5acb1d7195e603155882fafc4697344199eeeafbe5f",
+                "sha256:c6d3dba39ed5059aaf99767017b9568c75b2d0780c3481e204b1daecde00360e",
+                "sha256:ca4a7681b643b8356e7dfdab9cf668b2b34bd07ef4b09ebed44c8aeb3b1626ee",
+                "sha256:fb4d2e82add82d63b2c97802b759a58ff200d06b632e2edc48a9ced1e6472faf"
+            ],
+            "version": "==3.0.5"
         },
         "py": {
             "hashes": [
-                "sha256:366389d1db726cd2fcfc79732e75410e5fe4d31db13692115529d34069a043c2",
-                "sha256:9ca6883ce56b4e8da7e79ac18787889fa5206c79dcc67fb065376cd2fe03f342"
+                "sha256:21b81bda15b66ef5e1a777a21c4dcd9c20ad3efd0b3f817e7a809035269e1bd3",
+                "sha256:3b80836aa6d1feeaa108e046da6423ab8f6ceda6468545ae8d02d9d58d18818a"
             ],
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==1.9.0"
+            "version": "==1.10.0"
         },
         "pydantic": {
             "hashes": [
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+            "version": "==1.7.3"
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         "pyparsing": {
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@@ -362,11 +386,11 @@
         },
         "pytest": {
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+            "markers": "python_version >= '3.6'",
+            "version": "==6.2.0"
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@@ -376,6 +400,14 @@
             "index": "pypi",
             "version": "==2.10.1"
         },
+        "python-dateutil": {
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+            "version": "==2.8.1"
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@@ -441,58 +473,58 @@
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@@ -551,11 +583,11 @@
         },
         "tqdm": {
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             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==4.53.0"
+            "version": "==4.54.1"
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         "unidecode": {
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@@ -621,10 +653,10 @@
         },
         "certifi": {
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-            "version": "==2020.11.8"
+            "version": "==2020.12.5"
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         "cffi": {
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@@ -649,12 +681,14 @@
                 "sha256:9cc46bc107224ff5b6d04369e7c595acb700c3613ad7bcf2e2012f62ece80c35",
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                 "sha256:c6332685306b6417a91b1ff9fae889b3ba65c2292d64bd9245c093b1b284809d",
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@@ -682,31 +716,23 @@
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         "cryptography": {
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-                "sha256:32434673d8505b42c0de4de86da8c1620651abd24afe91ae0335597683ed1b77",
-                "sha256:3cd75a683b15576cfc822c7c5742b3276e50b21a06672dc3a800a2d5da4ecd1b",
-                "sha256:4e7268a0ca14536fecfdf2b00297d4e407da904718658c1ff1961c713f90fd33",
-                "sha256:545a8550782dda68f8cdc75a6e3bf252017aa8f75f19f5a9ca940772fc0cb56e",
-                "sha256:55d0b896631412b6f0c7de56e12eb3e261ac347fbaa5d5e705291a9016e5f8cb",
-                "sha256:5849d59358547bf789ee7e0d7a9036b2d29e9a4ddf1ce5e06bb45634f995c53e",
-                "sha256:6dc59630ecce8c1f558277ceb212c751d6730bd12c80ea96b4ac65637c4f55e7",
-                "sha256:7117319b44ed1842c617d0a452383a5a052ec6aa726dfbaffa8b94c910444297",
-                "sha256:75e8e6684cf0034f6bf2a97095cb95f81537b12b36a8fedf06e73050bb171c2d",
-                "sha256:7b8d9d8d3a9bd240f453342981f765346c87ade811519f98664519696f8e6ab7",
-                "sha256:a035a10686532b0587d58a606004aa20ad895c60c4d029afa245802347fab57b",
-                "sha256:a4e27ed0b2504195f855b52052eadcc9795c59909c9d84314c5408687f933fc7",
-                "sha256:a733671100cd26d816eed39507e585c156e4498293a907029969234e5e634bc4",
-                "sha256:a75f306a16d9f9afebfbedc41c8c2351d8e61e818ba6b4c40815e2b5740bb6b8",
-                "sha256:bd717aa029217b8ef94a7d21632a3bb5a4e7218a4513d2521c2a2fd63011e98b",
-                "sha256:d25cecbac20713a7c3bc544372d42d8eafa89799f492a43b79e1dfd650484851",
-                "sha256:d26a2557d8f9122f9bf445fc7034242f4375bd4e95ecda007667540270965b13",
-                "sha256:d3545829ab42a66b84a9aaabf216a4dce7f16dbc76eb69be5c302ed6b8f4a29b",
-                "sha256:d3d5e10be0cf2a12214ddee45c6bd203dab435e3d83b4560c03066eda600bfe3",
-                "sha256:efe15aca4f64f3a7ea0c09c87826490e50ed166ce67368a68f315ea0807a20df"
-            ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
-            "version": "==3.2.1"
+                "sha256:0003a52a123602e1acee177dc90dd201f9bb1e73f24a070db7d36c588e8f5c7d",
+                "sha256:0e85aaae861d0485eb5a79d33226dd6248d2a9f133b81532c8f5aae37de10ff7",
+                "sha256:594a1db4511bc4d960571536abe21b4e5c3003e8750ab8365fafce71c5d86901",
+                "sha256:69e836c9e5ff4373ce6d3ab311c1a2eed274793083858d3cd4c7d12ce20d5f9c",
+                "sha256:788a3c9942df5e4371c199d10383f44a105d67d401fb4304178020142f020244",
+                "sha256:7e177e4bea2de937a584b13645cab32f25e3d96fc0bc4a4cf99c27dc77682be6",
+                "sha256:83d9d2dfec70364a74f4e7c70ad04d3ca2e6a08b703606993407bf46b97868c5",
+                "sha256:84ef7a0c10c24a7773163f917f1cb6b4444597efd505a8aed0a22e8c4780f27e",
+                "sha256:9e21301f7a1e7c03dbea73e8602905a4ebba641547a462b26dd03451e5769e7c",
+                "sha256:9f6b0492d111b43de5f70052e24c1f0951cb9e6022188ebcb1cc3a3d301469b0",
+                "sha256:a69bd3c68b98298f490e84519b954335154917eaab52cf582fa2c5c7efc6e812",
+                "sha256:b4890d5fb9b7a23e3bf8abf5a8a7da8e228f1e97dc96b30b95685df840b6914a",
+                "sha256:c366df0401d1ec4e548bebe8f91d55ebcc0ec3137900d214dd7aac8427ef3030",
+                "sha256:dc42f645f8f3a489c3dd416730a514e7a91a59510ddaadc09d04224c098d3302"
+            ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5'",
+            "version": "==3.3.1"
         },
         "decorator": {
             "hashes": [
@@ -723,6 +749,30 @@
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==0.16"
         },
+        "elasticsearch": {
+            "hashes": [
+                "sha256:4ebd34fd223b31c99d9f3b6b6236d3ac18b3046191a37231e8235b06ae7db955",
+                "sha256:a725dd923d349ca0652cf95d6ce23d952e2153740cf4ab6daf4a2d804feeed48"
+            ],
+            "index": "pypi",
+            "version": "==7.10.1"
+        },
+        "elasticsearch-dsl": {
+            "hashes": [
+                "sha256:0ed75f6ff037e36b2397a8e92cae0ddde79b83adc70a154b8946064cb62f7301",
+                "sha256:9390d8e5cf82ebad3505e7f656e407259cf703f5a4035f211cef454127672572"
+            ],
+            "index": "pypi",
+            "version": "==7.3.0"
+        },
+        "fatcat-openapi-client": {
+            "hashes": [
+                "sha256:2dfec611d1eb8396ba8812ea3c6dfdc250b098870aafcecf895ae31fa2a90c5f",
+                "sha256:fd7f3089d3cc223c1b560125b688e8ce0393ba76edfe87506464db7a1e38d0b1"
+            ],
+            "markers": "python_full_version >= '3.5.0'",
+            "version": "==0.3.2"
+        },
         "ftfy": {
             "hashes": [
                 "sha256:51c7767f8c4b47d291fcef30b9625fb5341c06a31e6a3b627039c706c42f3720"
@@ -840,11 +890,11 @@
         },
         "packaging": {
             "hashes": [
-                "sha256:4357f74f47b9c12db93624a82154e9b120fa8293699949152b22065d556079f8",
-                "sha256:998416ba6962ae7fbd6596850b80e17859a5753ba17c32284f67bfff33784181"
+                "sha256:24e0da08660a87484d1602c30bb4902d74816b6985b93de36926f5bc95741858",
+                "sha256:78598185a7008a470d64526a8059de9aaa449238f280fc9eb6b13ba6c4109093"
             ],
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==20.4"
+            "version": "==20.8"
         },
         "parso": {
             "hashes": [
@@ -901,11 +951,11 @@
         },
         "py": {
             "hashes": [
-                "sha256:366389d1db726cd2fcfc79732e75410e5fe4d31db13692115529d34069a043c2",
-                "sha256:9ca6883ce56b4e8da7e79ac18787889fa5206c79dcc67fb065376cd2fe03f342"
+                "sha256:21b81bda15b66ef5e1a777a21c4dcd9c20ad3efd0b3f817e7a809035269e1bd3",
+                "sha256:3b80836aa6d1feeaa108e046da6423ab8f6ceda6468545ae8d02d9d58d18818a"
             ],
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==1.9.0"
+            "version": "==1.10.0"
         },
         "pycparser": {
             "hashes": [
@@ -917,39 +967,39 @@
         },
         "pydantic": {
             "hashes": [
-                "sha256:01f0291f4951580f320f7ae3f2ecaf0044cdebcc9b45c5f882a7e84453362420",
-                "sha256:0fe8b45d31ae53d74a6aa0bf801587bd49970070eac6a6326f9fa2a302703b8a",
-                "sha256:2182ba2a9290964b278bcc07a8d24207de709125d520efec9ad6fa6f92ee058d",
-                "sha256:2c1673633ad1eea78b1c5c420a47cd48717d2ef214c8230d96ca2591e9e00958",
-                "sha256:388c0c26c574ff49bad7d0fd6ed82fbccd86a0473fa3900397d3354c533d6ebb",
-                "sha256:4ba6b903e1b7bd3eb5df0e78d7364b7e831ed8b4cd781ebc3c4f1077fbcb72a4",
-                "sha256:6665f7ab7fbbf4d3c1040925ff4d42d7549a8c15fe041164adfe4fc2134d4cce",
-                "sha256:95d4410c4e429480c736bba0db6cce5aaa311304aea685ebcf9ee47571bfd7c8",
-                "sha256:a2fc7bf77ed4a7a961d7684afe177ff59971828141e608f142e4af858e07dddc",
-                "sha256:a3c274c49930dc047a75ecc865e435f3df89715c775db75ddb0186804d9b04d0",
-                "sha256:ab1d5e4d8de00575957e1c982b951bffaedd3204ddd24694e3baca3332e53a23",
-                "sha256:b11fc9530bf0698c8014b2bdb3bbc50243e82a7fa2577c8cfba660bcc819e768",
-                "sha256:b9572c0db13c8658b4a4cb705dcaae6983aeb9842248b36761b3fbc9010b740f",
-                "sha256:c68b5edf4da53c98bb1ccb556ae8f655575cb2e676aef066c12b08c724a3f1a1",
-                "sha256:c8200aecbd1fb914e1bd061d71a4d1d79ecb553165296af0c14989b89e90d09b",
-                "sha256:c9760d1556ec59ff745f88269a8f357e2b7afc75c556b3a87b8dda5bc62da8ba",
-                "sha256:ce2d452961352ba229fe1e0b925b41c0c37128f08dddb788d0fd73fd87ea0f66",
-                "sha256:dfaa6ed1d509b5aef4142084206584280bb6e9014f01df931ec6febdad5b200a",
-                "sha256:e5fece30e80087d9b7986104e2ac150647ec1658c4789c89893b03b100ca3164",
-                "sha256:f045cf7afb3352a03bc6cb993578a34560ac24c5d004fa33c76efec6ada1361a",
-                "sha256:f83f679e727742b0c465e7ef992d6da4a7e5268b8edd8fdaf5303276374bef52",
-                "sha256:fc21a37ff3f545de80b166e1735c4172b41b017948a3fb2d5e2f03c219eac50a"
+                "sha256:025bf13ce27990acc059d0c5be46f416fc9b293f45363b3d19855165fee1874f",
+                "sha256:185e18134bec5ef43351149fe34fda4758e53d05bb8ea4d5928f0720997b79ef",
+                "sha256:213125b7e9e64713d16d988d10997dabc6a1f73f3991e1ff8e35ebb1409c7dc9",
+                "sha256:24ca47365be2a5a3cc3f4a26dcc755bcdc9f0036f55dcedbd55663662ba145ec",
+                "sha256:38be427ea01a78206bcaf9a56f835784afcba9e5b88fbdce33bbbfbcd7841229",
+                "sha256:475f2fa134cf272d6631072554f845d0630907fce053926ff634cc6bc45bf1af",
+                "sha256:514b473d264671a5c672dfb28bdfe1bf1afd390f6b206aa2ec9fed7fc592c48e",
+                "sha256:59e45f3b694b05a69032a0d603c32d453a23f0de80844fb14d55ab0c6c78ff2f",
+                "sha256:5b24e8a572e4b4c18f614004dda8c9f2c07328cb5b6e314d6e1bbd536cb1a6c1",
+                "sha256:6e3874aa7e8babd37b40c4504e3a94cc2023696ced5a0500949f3347664ff8e2",
+                "sha256:8d72e814c7821125b16f1553124d12faba88e85405b0864328899aceaad7282b",
+                "sha256:a4143c8d0c456a093387b96e0f5ee941a950992904d88bc816b4f0e72c9a0009",
+                "sha256:b2b054d095b6431cdda2f852a6d2f0fdec77686b305c57961b4c5dd6d863bf3c",
+                "sha256:c59ea046aea25be14dc22d69c97bee629e6d48d2b2ecb724d7fe8806bf5f61cd",
+                "sha256:d1fe3f0df8ac0f3a9792666c69a7cd70530f329036426d06b4f899c025aca74e",
+                "sha256:d8df4b9090b595511906fa48deda47af04e7d092318bfb291f4d45dfb6bb2127",
+                "sha256:dba5c1f0a3aeea5083e75db9660935da90216f8a81b6d68e67f54e135ed5eb23",
+                "sha256:e682f6442ebe4e50cb5e1cfde7dda6766fb586631c3e5569f6aa1951fd1a76ef",
+                "sha256:ecb54491f98544c12c66ff3d15e701612fc388161fd455242447083350904730",
+                "sha256:f5b06f5099e163295b8ff5b1b71132ecf5866cc6e7f586d78d7d3fd6e8084608",
+                "sha256:f6864844b039805add62ebe8a8c676286340ba0c6d043ae5dea24114b82a319e",
+                "sha256:ffd180ebd5dd2a9ac0da4e8b995c9c99e7c74c31f985ba090ee01d681b1c4b95"
             ],
             "markers": "python_version >= '3.6'",
-            "version": "==1.7.2"
+            "version": "==1.7.3"
         },
         "pygments": {
             "hashes": [
-                "sha256:381985fcc551eb9d37c52088a32914e00517e57f4a21609f48141ba08e193fa0",
-                "sha256:88a0bbcd659fcb9573703957c6b9cff9fab7295e6e76db54c9d00ae42df32773"
+                "sha256:ccf3acacf3782cbed4a989426012f1c535c9a90d3a7fc3f16d231b9372d2b716",
+                "sha256:f275b6c0909e5dafd2d6269a656aa90fa58ebf4a74f8fcf9053195d226b24a08"
             ],
             "markers": "python_version >= '3.5'",
-            "version": "==2.7.2"
+            "version": "==2.7.3"
         },
         "pyparsing": {
             "hashes": [
@@ -961,11 +1011,19 @@
         },
         "pytest": {
             "hashes": [
-                "sha256:4288fed0d9153d9646bfcdf0c0428197dba1ecb27a33bb6e031d002fa88653fe",
-                "sha256:c0a7e94a8cdbc5422a51ccdad8e6f1024795939cc89159a0ae7f0b316ad3823e"
+                "sha256:b12e09409c5bdedc28d308469e156127004a436b41e9b44f9bff6446cbab9152",
+                "sha256:d69e1a80b34fe4d596c9142f35d9e523d98a2838976f1a68419a8f051b24cec6"
             ],
-            "markers": "python_version >= '3.5'",
-            "version": "==6.1.2"
+            "markers": "python_version >= '3.6'",
+            "version": "==6.2.0"
+        },
+        "python-dateutil": {
+            "hashes": [
+                "sha256:73ebfe9dbf22e832286dafa60473e4cd239f8592f699aa5adaf10050e6e1823c",
+                "sha256:75bb3f31ea686f1197762692a9ee6a7550b59fc6ca3a1f4b5d7e32fb98e2da2a"
+            ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "version": "==2.8.1"
         },
         "pyyaml": {
             "hashes": [
@@ -1041,11 +1099,11 @@
         },
         "tqdm": {
             "hashes": [
-                "sha256:3d3f1470d26642e88bd3f73353cb6ff4c51ef7d5d7efef763238f4bc1f7e4e81",
-                "sha256:5ff3f5232b19fa4c5531641e480b7fad4598819f708a32eb815e6ea41c5fa313"
+                "sha256:38b658a3e4ecf9b4f6f8ff75ca16221ae3378b2e175d846b6b33ea3a20852cf5",
+                "sha256:d4f413aecb61c9779888c64ddf0c62910ad56dcbe857d8922bb505d4dbff0df1"
             ],
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==4.53.0"
+            "version": "==4.54.1"
         },
         "traitlets": {
             "hashes": [
@@ -1104,6 +1162,7 @@
                 "sha256:99d4073b617d30288f569d3f13d2bd7548c3a7e4c8de87db09a9d29bb3a4a60c",
                 "sha256:dafc7639cde7f1b6e1acc0f457842a83e722ccca8eef5270af2d74792619a89f"
             ],
+            "markers": "python_version < '3.8'",
             "version": "==3.7.4.3"
         },
         "unidecode": {
diff --git a/fuzzycat/matching.py b/fuzzycat/matching.py
new file mode 100644
index 0000000..518198a
--- /dev/null
+++ b/fuzzycat/matching.py
@@ -0,0 +1,91 @@
+import elasticsearch
+from fatcat_openapi_client import ContainerEntity, ReleaseEntity
+
+def match_release_fuzzy(release: ReleaseEntity, size=5, es=None) -> List[ReleaseEntity]:
+    """
+    Given a release entity, return a number similar release entities from
+    fatcat using Elasticsearch.
+    """
+    assert isinstance(release, ReleaseEntity)
+
+    if size is None or size == 0:
+        size = 10000  # or any large number
+
+    if isinstance(es, str):
+        es = elasticsearch.Elasticsearch([es])
+    if es is None:
+        es = elasticsearch.Elasticsearch()
+
+    # Try to match by external identifier.
+    ext_ids = release.ext_ids
+    attrs = {
+        "doi": "doi",
+        "wikidata_qid": "wikidata_qid",
+        "isbn13": "isbn13",
+        "pmid": "pmid",
+        "pmcid": "pmcid",
+        "core": "code_id",
+        "arxiv": "arxiv_id",
+        "jstor": "jstor_id",
+        "ark": "ark_id",
+        "mag": "mag_id",
+    }
+    for attr, es_field in attrs.items():
+        value = getattr(ext_ids, attr)
+        if not value:
+            continue
+        s = (
+            elasticsearch_dsl.Search(using=es, index="fatcat_release")
+            .query("term", **{es_field: value})
+            .extra(size=size)
+        )
+        print(s)
+        resp = s.execute()
+        if len(resp) > 0:
+            return response_to_entity_list(resp, entity_type=ReleaseEntity)
+
+    body = {
+        "query": {"match": {"title": {"query": release.title, "operator": "AND"}}},
+        "size": size,
+    }
+    resp = es.search(body=body, index="fatcat_release")
+    if resp["hits"]["total"] > 0:
+        return response_to_entity_list(resp, entity_type=ReleaseEntity)
+
+    # Get fuzzy.
+    # https://www.elastic.co/guide/en/elasticsearch/reference/current/common-options.html#fuzziness
+    body = {
+        "query": {
+            "match": {
+                "title": {
+                    "query": release.title,
+                    "operator": "AND",
+                    "fuzziness": "AUTO",
+                }
+            }
+        },
+        "size": size,
+    }
+    resp = es.search(body=body, index="fatcat_release")
+    if resp["hits"]["total"] > 0:
+        return response_to_entity_list(resp, entity_type=ReleaseEntity)
+
+    # TODO: perform more queries on other fields.
+    return []
+
+
+def response_to_entity_list(response, size=5, entity_type=ReleaseEntity):
+    """
+    Convert an elasticsearch result to a list of entities. Accepts both a
+    dictionary and an elasticsearch_dsl.response.Response.
+
+    We take the ids from elasticsearch and retrieve entities via API.
+    """
+    if isinstance(response, dict):
+        ids = [hit["_source"]["ident"] for hit in response["hits"]["hits"]][:size]
+        return retrieve_entity_list(ids, entity_type=entity_type)
+    elif isinstance(response, elasticsearch_dsl.response.Response):
+        ids = [hit.to_dict().get("ident") for hit in response]
+        return retrieve_entity_list(ids, entity_type=entity_type)
+    else:
+        raise ValueError("cannot convert {}".format(response))
diff --git a/setup.py b/setup.py
index d8d2f28..1833fed 100644
--- a/setup.py
+++ b/setup.py
@@ -31,6 +31,9 @@ with open("README.md", "r") as fh:
             "pydantic",
             "toml",
             "unidecode>=0.10",
+            "fatcat-openapi-client", # https://pypi.org/project/fatcat-openapi-client/
+            "elasticsearch",
+            "elasticsearch-dsl",
         ],
         extras_require={"dev": [
             "ipython",
-- 
cgit v1.2.3