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OpenAPI Specification
openapi: 3.2.0
info:
title: Tendermint RPC ABCI Tx API
contact:
name: Tendermint RPC
url: https://github.com/tendermint/tendermint/issues/new/choose
description: "Tendermint supports the following RPC protocols:\n\n* URI over HTTP\n* JSONRPC over HTTP\n* JSONRPC over websockets\n\n## Configuration\n\nRPC can be configured by tuning parameters under `[rpc]` table in the\n`$TMHOME/config/config.toml` file or by using the `--rpc.X` command-line\nflags.\n\nDefault rpc listen address is `tcp://0.0.0.0:26657`.\nTo set another address, set the `laddr` config parameter to desired value.\nCORS (Cross-Origin Resource Sharing) can be enabled by setting\n`cors_allowed_origins`, `cors_allowed_methods`, `cors_allowed_headers`\nconfig parameters.\n\n## Arguments\n\nArguments which expect strings or byte arrays may be passed as quoted\nstrings, like `\"abc\"` or as `0x`-prefixed strings, like `0x616263`.\n\n## URI/HTTP\n\nA REST like interface.\n\n curl localhost:26657/block?height=5\n\n## JSONRPC/HTTP\n\nJSONRPC requests can be POST'd to the root RPC endpoint via HTTP.\n\n curl --header \"Content-Type: application/json\" --request POST --data '{\"method\": \"block\", \"params\": [\"5\"], \"id\": 1}' localhost:26657\n\n## JSONRPC/websockets\n\nJSONRPC requests can be also made via websocket.\nThe websocket endpoint is at `/websocket`, e.g. `localhost:26657/websocket`.\nAsynchronous RPC functions like event `subscribe` and `unsubscribe` are\nonly available via websockets.\n\nExample using https://github.com/hashrocket/ws:\n\n ws ws://localhost:26657/websocket\n > { \"jsonrpc\": \"2.0\", \"method\": \"subscribe\", \"params\": [\"tm.event='NewBlock'\"], \"id\": 1 }\n"
version: v0.34
license:
name: Apache 2.0
url: https://github.com/tendermint/tendermint/blob/main/LICENSE
servers:
- url: https://rpc.cosmos.network
description: Cosmos mainnet node to interact with the Tendermint RPC
- url: http://localhost:26657
description: Interact with the Tendermint RPC locally on your device
tags:
- name: Tx
description: Transactions broadcast APIs
paths:
/broadcast_tx_sync:
get:
summary: Returns with the response from CheckTx. Does not wait for DeliverTx result.
tags:
- Tx
operationId: broadcast_tx_sync
description: 'If you want to be sure that the transaction is included in a block, you can
subscribe for the result using JSONRPC via a websocket. See
https://docs.tendermint.com/v0.34/app-dev/subscribing-to-events-via-websocket.html
If you haven''t received anything after a couple of blocks, resend it. If the
same happens again, send it to some other node. A few reasons why it could
happen:
1. malicious node can drop or pretend it had committed your tx
2. malicious proposer (not necessary the one you''re communicating with) can
drop transactions, which might become valid in the future
(https://github.com/tendermint/tendermint/issues/3322)
Please refer to
https://docs.tendermint.com/v0.34/tendermint-core/using-tendermint.html#formatting
for formatting/encoding rules.
'
parameters:
- in: query
name: tx
required: true
schema:
type: string
example: '456'
description: The transaction
responses:
'200':
description: Empty
content:
application/json:
schema:
$ref: '#/components/schemas/BroadcastTxResponse'
'500':
description: Error
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
/broadcast_tx_async:
get:
summary: Returns right away, with no response. Does not wait for CheckTx nor DeliverTx results.
tags:
- Tx
operationId: broadcast_tx_async
description: 'If you want to be sure that the transaction is included in a block, you can
subscribe for the result using JSONRPC via a websocket. See
https://docs.tendermint.com/v0.34/app-dev/subscribing-to-events-via-websocket.html
If you haven''t received anything after a couple of blocks, resend it. If the
same happens again, send it to some other node. A few reasons why it could
happen:
1. malicious node can drop or pretend it had committed your tx
2. malicious proposer (not necessary the one you''re communicating with) can
drop transactions, which might become valid in the future
(https://github.com/tendermint/tendermint/issues/3322)
3. node can be offline
Please refer to
https://docs.tendermint.com/v0.34/tendermint-core/using-tendermint.html#formatting
for formatting/encoding rules.
'
parameters:
- in: query
name: tx
required: true
schema:
type: string
example: '123'
description: The transaction
responses:
'200':
description: empty answer
content:
application/json:
schema:
$ref: '#/components/schemas/BroadcastTxResponse'
'500':
description: empty error
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
/broadcast_tx_commit:
get:
summary: Returns with the responses from CheckTx and DeliverTx.
tags:
- Tx
operationId: broadcast_tx_commit
description: 'IMPORTANT: use only for testing and development. In production, use
BroadcastTxSync or BroadcastTxAsync. You can subscribe for the transaction
result using JSONRPC via a websocket. See
https://docs.tendermint.com/v0.34/app-dev/subscribing-to-events-via-websocket.html
CONTRACT: only returns error if mempool.CheckTx() errs or if we timeout
waiting for tx to commit.
If CheckTx or DeliverTx fail, no error will be returned, but the returned result
will contain a non-OK ABCI code.
Please refer to
https://docs.tendermint.com/v0.34/tendermint-core/using-tendermint.html#formatting
for formatting/encoding rules.
'
parameters:
- in: query
name: tx
required: true
schema:
type: string
example: '785'
description: The transaction
responses:
'200':
description: empty answer
content:
application/json:
schema:
$ref: '#/components/schemas/BroadcastTxCommitResponse'
'500':
description: empty error
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
/check_tx:
get:
summary: Checks the transaction without executing it.
tags:
- Tx
operationId: check_tx
description: 'The transaction won''t be added to the mempool.
Please refer to
https://docs.tendermint.com/v0.34/tendermint-core/using-tendermint.html#formatting
for formatting/encoding rules.
Upon success, the `Cache-Control` header will be set with the default
maximum age.
'
parameters:
- in: query
name: tx
required: true
schema:
type: string
example: '785'
description: The transaction
responses:
'200':
description: ABCI application's CheckTx response
content:
application/json:
schema:
$ref: '#/components/schemas/CheckTxResponse'
'500':
description: empty error
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
components:
schemas:
BroadcastTxCommitResponse:
type: object
required:
- error
- result
- id
- jsonrpc
properties:
error:
type: string
example: ''
result:
required:
- height
- hash
- deliver_tx
- check_tx
properties:
height:
type: string
example: '26682'
hash:
type: string
example: 75CA0F856A4DA078FC4911580360E70CEFB2EBEE
deliver_tx:
required:
- log
- data
- code
properties:
log:
type: string
example: ''
data:
type: string
example: ''
code:
type: string
example: '0'
type: object
check_tx:
required:
- log
- data
- code
properties:
log:
type: string
example: ''
data:
type: string
example: ''
code:
type: string
example: '0'
type: object
type: object
id:
type: integer
example: 0
jsonrpc:
type: string
example: '2.0'
JSONRPC:
type: object
properties:
id:
type: integer
example: 0
jsonrpc:
type: string
example: '2.0'
ErrorResponse:
description: Error Response
allOf:
- $ref: '#/components/schemas/JSONRPC'
- type: object
properties:
error:
type: string
example: Description of failure
BroadcastTxResponse:
type: object
required:
- jsonrpc
- id
- result
- error
properties:
jsonrpc:
type: string
example: '2.0'
id:
type: integer
example: 0
result:
required:
- code
- data
- log
- hash
properties:
code:
type: string
example: '0'
data:
type: string
example: ''
log:
type: string
example: ''
codespace:
type: string
example: ibc
hash:
type: string
example: 0D33F2F03A5234F38706E43004489E061AC40A2E
type: object
error:
type: string
example: ''
CheckTxResponse:
type: object
required:
- error
- result
- id
- jsonrpc
properties:
error:
type: string
example: ''
result:
required:
- log
- data
- code
properties:
code:
type: string
example: '0'
data:
type: string
example: ''
log:
type: string
example: ''
info:
type: string
example: ''
gas_wanted:
type: string
example: '1'
gas_used:
type: string
example: '0'
events:
type:
- array
- 'null'
items:
type: object
properties:
type:
type: string
example: app
attributes:
type: array
items:
$ref: '#/components/schemas/Event'
codespace:
type: string
example: bank
type: object
id:
type: integer
example: 0
jsonrpc:
type: string
example: '2.0'
Event:
type: object
properties:
key:
type: string
example: YWN0aW9u
value:
type: string
example: c2VuZA==
index:
type: boolean
example: false