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EOS ESHistoryAPI - GO (beta)

EOS History API for Elasticsearch cluster on GO.

During the benchmark testing, real query traffic was redirected to this application.
The application works consistently at > 2000 simultaneous connections.

Installation

Get source code

$ cd $GOPATH/src
$ git clone https://github.com/atticlab/eos-es-historyapi.git
$ cd eos-es-historyapi/

Create config.json

In the project directory create file config.json.
"port" property is for the port on which the server will listen.
"elastic_url" property is for the url of elasticsearch cluster.
"seed_node" property is for the url of the node with chain_api_plugin enabled.
For example:

{
    "port": 9000,
    "elastic_url": "http://127.0.0.1:9201",
    "seed_node": "http://seed.node.ip"
}  

The "seed_node" parameter is needed by the application to connect to the node and receive transactions.trx that are not in the Elasticsearch data.

Create .env file

In project directory create file .env
Change path to GO directory to your path
For example:

GOPATH=/home/eosuser/go  
NAMEREPO=eos-es-historyapi  
MIDDLEWARE_SOURCE_PORT=9000  
MIDDLEWARE_DEST_PORT=9000  

Application

Build application

$make build-app

Run application

$make start

Stop application

$make stop

Docker

Build docker

$make build-docker

create docker-compose

$make create-compose

Run docker-compose

$make docker-start

Stop docker-compose

$make docker-stop

Usage

This API supports following GET and POST requests:

/v1/history/get_actions

Requires json body with the following properties:
account_name - name of the eos account. This field is required.
pos - position in a list of account actions sorted by global_sequence (e.g. in chronological order). This field is not required.
offset - number of actions to return. This field is not required.
Example of request body:

{
    "account_name": "eosio",
    "pos": 0,
    "offset": 10
}

Returns json with the following properties:
actions - array of actions of a given account

/v1/history/get_transaction

Requires json body with the following properties:
id - id of a transaction.
Example of request body:

{
    "id": "e6c814f9ba58e2aedd654abfdefc99c98f3e4bf5f20e4820b7d212f38f1f6f13"
}

Returns json with the following properties:
id - id of a transaction.
trx - transaction.
block_time - timestamp of the block which contains the requested transaction.
block_num - number of the block which contains the requested transaction.
traces - traces of the transaction.

/v1/history/get_key_accounts

Requires json body with the following properties:
public_key - public key of account Example of request body:

{
    "public_key": "EOS81Z5dYnSnfzdNFViMcGQoYUqrgZSdKJ69mvsnp2CLH2ufqX8Y9"
}

Returns json with the following properties:
account_names - array of accounts that have a requested key

/v1/history/get_controlled_accounts

Requires json body with the following properties:
controlling_account - name of the eos account
Example of request body:

{
    "controlling_account": "eosio"
}

Returns json with the following properties:
controlled_accounts - array of accounts controlled by a requested account

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