esrt 1.27.0

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esrt - Elasticsearch Request Tool

pip install pipx
pipx install esrt -f
esrt --install-completion  # Install completion for the current shell.

Commands

• e: search
• s: scan / scroll
• r: request / api / a
• t: transmit / bulk / b
• sql: sql / query / q

---

Example

You can start an es service with docker.

docker run --rm -itd --platform=linux/amd64 -p 9200:9200 elasticsearch:5.6.9-alpine

---

r - Send a request

Check server:

esrt r localhost -X HEAD
# ->
# true

Create a index:

esrt r localhost -X PUT /my-index
# ->
# {"acknowledged": true, "shards_acknowledged": true, "index": "my-index"}

Cat it:

esrt r localhost -X GET _cat/indices -p 'v&format=json' -p 's=index'
# ->
# [{"health": "yellow", "status": "open", "index": "my-index", "uuid": "avrhX1hzQLyfEGvXsA96NA", "pri": "5", "rep": "1", "docs.count": "0", "docs.deleted": "0", "store.size": "324b", "pri.store.size": "324b"}]

esrt doesn't keep -p pretty format, but you can use jq.

esrt r localhost -X GET _cat/indices -p 'v&format=json' -p 's=index' | jq
# ->
# [
#   {
#     "health": "yellow",
#     "status": "open",
#     "index": "my-index",
#     "uuid": "avrhX1hzQLyfEGvXsA96NA",
#     "pri": "5",
#     "rep": "1",
#     "docs.count": "0",
#     "docs.deleted": "0",
#     "store.size": "810b",
#     "pri.store.size": "810b"
#   }
# ]

---

t - Transmit data (streaming_bulk)

Bulk with data from file examples/bulk.ndjson:

{ "_op_type": "index",  "_index": "my-index", "_type": "type1", "_id": "1", "field1": "ii" }
{ "_op_type": "delete", "_index": "my-index", "_type": "type1", "_id": "1" }
{ "_op_type": "create", "_index": "my-index", "_type": "type1", "_id": "1", "field1": "cc" }
{ "_op_type": "update", "_index": "my-index", "_type": "type1", "_id": "1", "doc": {"field2": "uu"} }

esrt t localhost -d examples/bulk.ndjson
# ->
# <Client([{'host': 'localhost', 'port': 9200}])>
# streaming_bulk  [####################################]  4

# success = 4
# failed = 0

---

Piping heredoc also works. And -d can be omitted.

cat <<EOF | esrt t localhost
{ "_op_type": "index",  "_index": "my-index-2", "_type": "type1", "_id": "1", "field1": "11" }
{ "_op_type": "index",  "_index": "my-index-2", "_type": "type1", "_id": "2", "field1": "22" }
{ "_op_type": "index",  "_index": "my-index-2", "_type": "type1", "_id": "3", "field1": "33" }
EOF
# ->
# <Client([{'host': 'localhost', 'port': 9200}])>
# streaming_bulk  [####################################]  3

# success = 3
# failed = 0

---

Pipe _search result and update _index with customized handler to do more operations before bulk!

alias jq_es_hits="jq '.hits.hits.[]'"
#
esrt r localhost -X GET /my-index-2/_search | jq_es_hits -c | esrt t localhost -w examples.my-handlers:MyHandler  # <- `examples/my-handlers.py`
# ->
# <Client([{'host': 'localhost', 'port': 9200}])>
# streaming_bulk  [####################################]  3

# success = 3
# failed = 0

# examples/my-handlers.py
import json
import typing as t

from esrt import DocHandler


# function style
def my_handler(actions: t.Iterable[str]):
    for action in actions:
        obj = json.loads(action)
        prefix = 'new-'
        if not t.cast(str, obj['_index']).startswith(prefix):
            obj['_index'] = prefix + obj['_index']
        yield obj

# class style
class MyHandler(DocHandler):
    def handle(self, actions: t.Iterable[str]):
        for action in actions:
            yield self.handle_one(action)

    def handle_one(self, action: str):
        obj = json.loads(action)
        prefix = 'new-'
        if not t.cast(str, obj['_index']).startswith(prefix):
            obj['_index'] = prefix + obj['_index']
        return obj

---

e Search docs

esrt e localhost | jq_es_hits -c
# ->
# {"_index":"my-index-2","_type":"type1","_id":"2","_score":1.0,"_source":{"field1":"22"}}
# {"_index":"new-my-index-2","_type":"type1","_id":"2","_score":1.0,"_source":{"field1":"22"}}
# {"_index":"my-index","_type":"type1","_id":"1","_score":1.0,"_source":{"field1":"cc","field2":"uu"}}
# {"_index":"my-index-2","_type":"type1","_id":"1","_score":1.0,"_source":{"field1":"11"}}
# {"_index":"new-my-index-2","_type":"type1","_id":"1","_score":1.0,"_source":{"field1":"11"}}
# {"_index":"my-index-2","_type":"type1","_id":"3","_score":1.0,"_source":{"field1":"33"}}
# {"_index":"new-my-index-2","_type":"type1","_id":"3","_score":1.0,"_source":{"field1":"33"}}

cat <<EOF | esrt e localhost -d - | jq_es_hits -c
{"query": {"term": {"_index": "new-my-index-2"}}}
EOF
# ->
# {"_index":"new-my-index-2","_type":"type1","_id":"2","_score":1.0,"_source":{"field1":"22"}}
# {"_index":"new-my-index-2","_type":"type1","_id":"1","_score":1.0,"_source":{"field1":"11"}}
# {"_index":"new-my-index-2","_type":"type1","_id":"3","_score":1.0,"_source":{"field1":"33"}}

s - Search and Scroll

esrt s localhost
# ->
# total = 7
# {"_index": "my-index-2", "_type": "type1", "_id": "2", "_score": null, "_source": {"field1": "22"}, "sort": [0]}
# {"_index": "new-my-index-2", "_type": "type1", "_id": "2", "_score": null, "_source": {"field1": "22"}, "sort": [0]}
# {"_index": "my-index", "_type": "type1", "_id": "1", "_score": null, "_source": {"field1": "cc", "field2": "uu"}, "sort": [0]}
# {"_index": "my-index-2", "_type": "type1", "_id": "1", "_score": null, "_source": {"field1": "11"}, "sort": [0]}
# {"_index": "new-my-index-2", "_type": "type1", "_id": "1", "_score": null, "_source": {"field1": "11"}, "sort": [0]}
# {"_index": "my-index-2", "_type": "type1", "_id": "3", "_score": null, "_source": {"field1": "33"}, "sort": [0]}
# {"_index": "new-my-index-2", "_type": "type1", "_id": "3", "_score": null, "_source": {"field1": "33"}, "sort": [0]}

cat <<EOF | esrt s localhost -d -
{"query": {"term": {"field1": "cc"}}}
EOF
# ->
# total = 1
# {"_index": "my-index", "_type": "type1", "_id": "1", "_score": null, "_source": {"field1": "cc", "field2": "uu"}, "sort": [0]}

---

Other Examples

# examples/create-massive-docs.py
import json
import uuid


if __name__ == '__main__':
    for i, _ in enumerate(range(654321), start=1):
        d = {
            '_index': 'my-index-a',
            '_id': i,
            '_type': 'type1',
            '_source': {'field1': str(uuid.uuid4())},
        }
        print(json.dumps(d))

python examples/create-massive-docs.py | tee -a _.ndjson | esrt t localhost -c 10000
# ->
# <Client([{'host': 'localhost', 'port': 9200}])>
# streaming_bulk  [####################################]  654321

# success = 654321
# failed = 0

cat _.ndjson  # <- 79M
# ->
# {"_index": "my-index-a", "_id": 1, "_type": "type1", "_source": {"field1": "7e6a3924-1258-4e44-a19b-15395e802b1b"}}
# {"_index": "my-index-a", "_id": 2, "_type": "type1", "_source": {"field1": "9a05ea11-349b-452f-b771-a1aa168bdca9"}}
# {"_index": "my-index-a", "_id": 3, "_type": "type1", "_source": {"field1": "2e4d2d6a-54e3-4160-adbb-d0c52759bb89"}}
# {"_index": "my-index-a", "_id": 4, "_type": "type1", "_source": {"field1": "72cbc979-ed03-4653-8bb6-9f3dd723a2c8"}}
# {"_index": "my-index-a", "_id": 5, "_type": "type1", "_source": {"field1": "61a0acce-e415-4ac7-8417-66ccfe0f7932"}}
# {"_index": "my-index-a", "_id": 6, "_type": "type1", "_source": {"field1": "ba84e4b9-881c-4042-bf39-a449766f9e4b"}}
# {"_index": "my-index-a", "_id": 7, "_type": "type1", "_source": {"field1": "e92b2d83-97ae-4d5e-9797-b9ade4841f87"}}
# {"_index": "my-index-a", "_id": 8, "_type": "type1", "_source": {"field1": "c36acdb2-ea4e-4716-ad16-166171fa181d"}}
# {"_index": "my-index-a", "_id": 9, "_type": "type1", "_source": {"field1": "f17d588b-cbd0-4f72-8a47-040eb1203e35"}}
# {"_index": "my-index-a", "_id": 10, "_type": "type1", "_source": {"field1": "ac5d00fd-6443-4380-8d1b-72595d3f890c"}}
# {"_index": "my-index-a", "_id": 11, "_type": "type1", "_source": {"field1": "5d997ac9-e2c0-4347-9415-9d981f40f856"}}
# {"_index": "my-index-a", "_id": 12, "_type": "type1", "_source": {"field1": "7cf7ef75-9d95-4736-851b-5099dd11d1d6"}}
# {"_index": "my-index-a", "_id": 13, "_type": "type1", "_source": {"field1": "a7db50d4-65da-499f-84d2-5e27f719b3a7"}}
# {"_index": "my-index-a", "_id": 14, "_type": "type1", "_source": {"field1": "fd48cc37-520c-41be-a3e4-6e242bf91fed"}}
# {"_index": "my-index-a", "_id": 15, "_type": "type1", "_source": {"field1": "767286bb-5590-4265-b6f5-ce789f5f2848"}}
# {"_index": "my-index-a", "_id": 16, "_type": "type1", "_source": {"field1": "eca18f61-8189-46bc-b455-520a5c0a26d3"}}
# {"_index": "my-index-a", "_id": 17, "_type": "type1", "_source": {"field1": "61508630-c2b2-4f93-a91b-056c69208c34"}}
# {"_index": "my-index-a", "_id": 18, "_type": "type1", "_source": {"field1": "c6f1df60-9652-4102-98f8-df3c3e5d966b"}}
# {"_index": "my-index-a", "_id": 19, "_type": "type1", "_source": {"field1": "63c85746-baea-4fc5-a3c1-2638c2d3b9ed"}}
# {"_index": "my-index-a", "_id": 20, "_type": "type1", "_source": {"field1": "bd47ee1f-198c-4da8-8c3d-458814d547b9"}}
# ......

---

# examples/copy-more-docs.py
from copy import deepcopy
import json
import typing as t
import uuid


if __name__ == '__main__':
    for i, _ in enumerate(range(54321), start=1):
        d = {
            '_index': 'my-index-b',
            '_id': i,
            '_type': 'type1',
            '_source': {'field1': str(uuid.uuid4())},
        }
        print(json.dumps(d))


def handle(actions: t.Iterable[str]):
    for action in actions:
        d: dict[str, t.Any] = json.loads(action)
        yield d
        d2 = deepcopy(d)
        d2['_source']['field1'] += '!!!'
        d2['_source']['field2'] = str(uuid.uuid4())
        yield d2

python examples/copy-more-docs.py | esrt t localhost -w examples.copy-more-docs:handle
# ->
# <Client([{'host': 'localhost', 'port': 9200}])>
# streaming_bulk  [####################################]  108642

# success = 108642
# failed = 0