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openapi.yaml
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openapi: 3.0.0
info:
title: Tendermint RPC
contact:
name: Tendermint RPC
url: https://github.com/tendermint/tendermint/issues/new/choose
description: |
Tendermint supports the following RPC protocols:
* URI over HTTP
* JSONRPC over HTTP
* JSONRPC over websockets
## Configuration
RPC can be configured by tuning parameters under `[rpc]` table in the
`$TMHOME/config/config.toml` file or by using the `--rpc.X` command-line
flags.
Default rpc listen address is `tcp://0.0.0.0:26657`.
To set another address, set the `laddr` config parameter to desired value.
CORS (Cross-Origin Resource Sharing) can be enabled by setting
`cors_allowed_origins`, `cors_allowed_methods`, `cors_allowed_headers`
config parameters.
## Arguments
Arguments which expect strings or byte arrays may be passed as quoted
strings, like `"abc"` or as `0x`-prefixed strings, like `0x616263`.
## URI/HTTP
A REST like interface.
curl localhost:26657/block?height=5
## JSONRPC/HTTP
JSONRPC requests can be POST'd to the root RPC endpoint via HTTP.
curl --header "Content-Type: application/json" --request POST --data '{"method": "block", "params": ["5"], "id": 1}' localhost:26657
## JSONRPC/websockets
JSONRPC requests can be also made via websocket.
The websocket endpoint is at `/websocket`, e.g. `localhost:26657/websocket`.
Asynchronous RPC functions like event `subscribe` and `unsubscribe` are
only available via websockets.
Example using https://github.com/hashrocket/ws:
ws ws://localhost:26657/websocket
> { "jsonrpc": "2.0", "method": "subscribe", "params": ["tm.event='NewBlock'"], "id": 1 }
version: "main"
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: Websocket
description: Subscribe/unsubscribe are reserved for websocket events.
- name: Info
description: Informations about the node APIs
- name: Tx
description: Transactions broadcast APIs
- name: ABCI
description: ABCI APIs
- name: Evidence
description: Evidence APIs
- name: Unsafe
description: Unsafe 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/main/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/main/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/main/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/main/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/main/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/main/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/main/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"
/subscribe:
get:
summary: Subscribe for events via WebSocket.
tags:
- Websocket
operationId: subscribe
description: |
To tell which events you want, you need to provide a query. query is a
string, which has a form: "condition AND condition ..." (no OR at the
moment). condition has a form: "key operation operand". key is a string with
a restricted set of possible symbols ( \t\n\r\\()"'=>< are not allowed).
operation can be "=", "<", "<=", ">", ">=", "CONTAINS" AND "EXISTS". operand
can be a string (escaped with single quotes), number, date or time.
Examples:
tm.event = 'NewBlock' # new blocks
tm.event = 'CompleteProposal' # node got a complete proposal
tm.event = 'Tx' AND tx.hash = 'XYZ' # single transaction
tm.event = 'Tx' AND tx.height = 5 # all txs of the fifth block
tx.height = 5 # all txs of the fifth block
Tendermint provides a few predefined keys: tm.event, tx.hash and tx.height.
Note for transactions, you can define additional keys by providing events with
DeliverTx response.
import (
abci "github.com/tendermint/tendermint/abci/types"
"github.com/tendermint/tendermint/libs/pubsub/query"
)
abci.ResponseDeliverTx{
Events: []abci.Event{
{
Type: "rewards.withdraw",
Attributes: abci.EventAttribute{
{Key: []byte("address"), Value: []byte("AddrA"), Index: true},
{Key: []byte("source"), Value: []byte("SrcX"), Index: true},
{Key: []byte("amount"), Value: []byte("..."), Index: true},
{Key: []byte("balance"), Value: []byte("..."), Index: true},
},
},
{
Type: "rewards.withdraw",
Attributes: abci.EventAttribute{
{Key: []byte("address"), Value: []byte("AddrB"), Index: true},
{Key: []byte("source"), Value: []byte("SrcY"), Index: true},
{Key: []byte("amount"), Value: []byte("..."), Index: true},
{Key: []byte("balance"), Value: []byte("..."), Index: true},
},
},
{
Type: "transfer",
Attributes: abci.EventAttribute{
{Key: []byte("sender"), Value: []byte("AddrC"), Index: true},
{Key: []byte("recipient"), Value: []byte("AddrD"), Index: true},
{Key: []byte("amount"), Value: []byte("..."), Index: true},
},
},
},
}
All events are indexed by a composite key of the form {eventType}.{evenAttrKey}.
In the above examples, the following keys would be indexed:
- rewards.withdraw.address
- rewards.withdraw.source
- rewards.withdraw.amount
- rewards.withdraw.balance
- transfer.sender
- transfer.recipient
- transfer.amount
Multiple event types with duplicate keys are allowed and are meant to
categorize unique and distinct events. In the above example, all events
indexed under the key `rewards.withdraw.address` will have the following
values stored and queryable:
- AddrA
- AddrB
To create a query for txs where address AddrA withdrew rewards:
query.MustParse("tm.event = 'Tx' AND rewards.withdraw.address = 'AddrA'")
To create a query for txs where address AddrA withdrew rewards from source Y:
query.MustParse("tm.event = 'Tx' AND rewards.withdraw.address = 'AddrA' AND rewards.withdraw.source = 'Y'")
To create a query for txs where AddrA transferred funds:
query.MustParse("tm.event = 'Tx' AND transfer.sender = 'AddrA'")
The following queries would return no results:
query.MustParse("tm.event = 'Tx' AND transfer.sender = 'AddrZ'")
query.MustParse("tm.event = 'Tx' AND rewards.withdraw.address = 'AddrZ'")
query.MustParse("tm.event = 'Tx' AND rewards.withdraw.source = 'W'")
See list of all possible events here
https://godoc.org/github.com/tendermint/tendermint/types#pkg-constants
For complete query syntax, check out
https://godoc.org/github.com/tendermint/tendermint/libs/pubsub/query.
```go
import rpchttp "github.com/tendermint/rpc/client/http"
import "github.com/tendermint/tendermint/types"
client := rpchttp.New("tcp:0.0.0.0:26657", "/websocket")
err := client.Start()
if err != nil {
handle error
}
defer client.Stop()
ctx, cancel := context.WithTimeout(context.Background(), 1 * time.Second)
defer cancel()
query := "tm.event = 'Tx' AND tx.height = 3"
txs, err := client.Subscribe(ctx, "test-client", query)
if err != nil {
handle error
}
go func() {
for e := range txs {
fmt.Println("got ", e.Data.(types.EventDataTx))
}
}()
```
NOTE: if you're not reading events fast enough, Tendermint might
terminate the subscription.
parameters:
- in: query
name: query
required: true
schema:
type: string
example: tm.event = 'Tx' AND tx.height = 5
description: |
query is a string, which has a form: "condition AND condition ..." (no OR at the
moment). condition has a form: "key operation operand". key is a string with
a restricted set of possible symbols ( \t\n\r\\()"'=>< are not allowed).
operation can be "=", "<", "<=", ">", ">=", "CONTAINS". operand can be a
string (escaped with single quotes), number, date or time.
responses:
"200":
description: empty answer
content:
application/json:
schema:
$ref: "#/components/schemas/EmptyResponse"
"500":
description: empty error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/unsubscribe:
get:
summary: Unsubscribe from event on Websocket
tags:
- Websocket
operationId: unsubscribe
description: |
```go
client := rpchttp.New("tcp:0.0.0.0:26657", "/websocket")
err := client.Start()
if err != nil {
handle error
}
defer client.Stop()
query := "tm.event = 'Tx' AND tx.height = 3"
err = client.Unsubscribe(context.Background(), "test-client", query)
if err != nil {
handle error
}
```
parameters:
- in: query
name: query
required: true
schema:
type: string
example: tm.event = 'Tx' AND tx.height = 5
description: |
query is a string, which has a form: "condition AND condition ..." (no OR at the
moment). condition has a form: "key operation operand". key is a string with
a restricted set of possible symbols ( \t\n\r\\()"'=>< are not allowed).
operation can be "=", "<", "<=", ">", ">=", "CONTAINS". operand can be a
string (escaped with single quotes), number, date or time.
responses:
"200":
description: Answer
content:
application/json:
schema:
$ref: "#/components/schemas/EmptyResponse"
"500":
description: Error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/unsubscribe_all:
get:
summary: Unsubscribe from all events via WebSocket
tags:
- Websocket
operationId: unsubscribe_all
description: |
Unsubscribe from all events via WebSocket
responses:
"200":
description: empty answer
content:
application/json:
schema:
$ref: "#/components/schemas/EmptyResponse"
"500":
description: empty error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/health:
get:
summary: Node heartbeat
tags:
- Info
operationId: health
description: |
Get node health. Returns empty result (200 OK) on success, no response - in case of an error.
responses:
"200":
description: Gets Node Health
content:
application/json:
schema:
$ref: "#/components/schemas/EmptyResponse"
"500":
description: empty error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/status:
get:
summary: Node Status
operationId: status
tags:
- Info
description: |
Get Tendermint status including node info, pubkey, latest block hash, app hash, block height and time.
responses:
"200":
description: Status of the node
content:
application/json:
schema:
$ref: "#/components/schemas/StatusResponse"
"500":
description: empty error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/net_info:
get:
summary: Network information
operationId: net_info
tags:
- Info
description: |
Get network info.
responses:
"200":
description: empty answer
content:
application/json:
schema:
$ref: "#/components/schemas/NetInfoResponse"
"500":
description: empty error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/dial_seeds:
get:
summary: Dial Seeds (Unsafe)
operationId: dial_seeds
tags:
- Unsafe
description: |
Dial a peer, this route in under unsafe, and has to manually enabled to use
**Example:** curl 'localhost:26657/dial_seeds?seeds=\["[email protected]:26656","[email protected]:26656"\]'
parameters:
- in: query
name: peers
description: list of seed nodes to dial
schema:
type: array
items:
type: string
example: "[email protected]:26656"
responses:
"200":
description: Dialing seeds in progress. See /net_info for details
content:
application/json:
schema:
$ref: "#/components/schemas/dialResp"
"500":
description: empty error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/dial_peers:
get:
summary: Add Peers/Persistent Peers (unsafe)
operationId: dial_peers
tags:
- Unsafe
description: |
Set a persistent peer, this route in under unsafe, and has to manually enabled to use.
**Example:** curl 'localhost:26657/dial_peers?peers=\["[email protected]:26656","[email protected]:26656"\]&persistent=false'
parameters:
- in: query
name: persistent
description: Have the peers you are dialing be persistent
schema:
type: boolean
example: true
- in: query
name: unconditional
description: Have the peers you are dialing be unconditional
schema:
type: boolean
example: true
- in: query
name: private
description: Have the peers you are dialing be private
schema:
type: boolean
example: true
- in: query
name: peers
description: array of peers to dial
schema:
type: array
items:
type: string
example: "[email protected]:26656"
responses:
"200":
description: Dialing seeds in progress. See /net_info for details
content:
application/json:
schema:
$ref: "#/components/schemas/dialResp"
"500":
description: empty error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/blockchain:
get:
summary: "Get block headers (max: 20) for minHeight <= height <= maxHeight."
operationId: blockchain
parameters:
- in: query
name: minHeight
description: Minimum block height to return
schema:
type: integer
example: 1
- in: query
name: maxHeight
description: Maximum block height to return
schema:
type: integer
example: 2
tags:
- Info
description: |
Get block headers for minHeight <= height <= maxHeight.
At most 20 items will be returned.
Upon success, the `Cache-Control` header will be set with the default
maximum age.
responses:
"200":
description: Block headers, returned in descending order (highest first).
content:
application/json:
schema:
$ref: "#/components/schemas/BlockchainResponse"
"500":
description: Error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/header:
get:
summary: Get header at a specified height
operationId: header
parameters:
- in: query
name: height
schema:
type: integer
default: 0
example: 1
description: height to return. If no height is provided, it will fetch the latest header.
tags:
- Info
description: |
Get Header.
If the `height` field is set to a non-default value, upon success, the
`Cache-Control` header will be set with the default maximum age.
responses:
"200":
description: Header informations.
content:
application/json:
schema:
$ref: "#/components/schemas/BlockHeader"
"500":
description: Error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/header_by_hash:
get:
summary: Get header by hash
operationId: header_by_hash
parameters:
- in: query
name: hash
description: header hash
required: true
schema:
type: string
example: "0xD70952032620CC4E2737EB8AC379806359D8E0B17B0488F627997A0B043ABDED"
tags:
- Info
description: |
Get Header By Hash.
Upon success, the `Cache-Control` header will be set with the default
maximum age.
responses:
"200":
description: Header informations.
content:
application/json:
schema:
$ref: "#/components/schemas/BlockHeader"
"500":
description: Error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/block:
get:
summary: Get block at a specified height
operationId: block
parameters:
- in: query
name: height
schema:
type: integer
default: 0
example: 1
description: height to return. If no height is provided, it will fetch the latest block.
tags:
- Info
description: |
Get Block.
If the `height` field is set to a non-default value, upon success, the
`Cache-Control` header will be set with the default maximum age.
responses:
"200":
description: Block informations.
content:
application/json:
schema:
$ref: "#/components/schemas/BlockResponse"
"500":
description: Error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/block_by_hash:
get:
summary: Get block by hash
operationId: block_by_hash
parameters:
- in: query
name: hash
description: block hash
required: true
schema:
type: string
example: "0xD70952032620CC4E2737EB8AC379806359D8E0B17B0488F627997A0B043ABDED"
tags:
- Info
description: |
Get Block By Hash.
Upon success, the `Cache-Control` header will be set with the default
maximum age.
responses:
"200":
description: Block informations.
content:
application/json:
schema:
$ref: "#/components/schemas/BlockResponse"
"500":
description: Error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/block_results:
get:
summary: Get block results at a specified height
operationId: block_results
parameters:
- in: query
name: height
description: height to return. If no height is provided, it will fetch information regarding the latest block.
schema:
type: integer
default: 0
example: 1
tags:
- Info
description: |
Get block_results.
If the `height` field is set to a non-default value, upon success, the
`Cache-Control` header will be set with the default maximum age.
responses:
"200":
description: Block results.
content:
application/json:
schema:
$ref: "#/components/schemas/BlockResultsResponse"
"500":
description: Error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/commit:
get:
summary: Get commit results at a specified height
operationId: commit
parameters:
- in: query
name: height
description: height to return. If no height is provided, it will fetch commit informations regarding the latest block.
schema:
type: integer
default: 0
example: 1
tags:
- Info
description: |
Get Commit.
If the `height` field is set to a non-default value, upon success, the
`Cache-Control` header will be set with the default maximum age.
responses:
"200":
description: |
Commit results.
canonical switches from false to true for block H once block H+1 has been committed. Until then it's subjective and only reflects what this node has seen so far.
content:
application/json:
schema:
$ref: "#/components/schemas/CommitResponse"
"500":
description: Error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/validators:
get:
summary: Get validator set at a specified height
operationId: validators
parameters:
- in: query
name: height
description: height to return. If no height is provided, it will fetch validator set which corresponds to the latest block.
schema:
type: integer
default: 0
example: 1
- in: query
name: page
description: "Page number (1-based)"
required: false
schema:
type: integer
default: 1
example: 1
- in: query
name: per_page
description: "Number of entries per page (max: 100)"
required: false
schema:
type: integer
example: 30
default: 30
tags:
- Info
description: |
Get Validators. Validators are sorted first by voting power
(descending), then by address (ascending).
If the `height` field is set to a non-default value, upon success, the
`Cache-Control` header will be set with the default maximum age.
responses:
"200":
description: Commit results.
content:
application/json:
schema:
$ref: "#/components/schemas/ValidatorsResponse"
"500":
description: Error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/genesis:
get:
summary: Get Genesis
operationId: genesis
tags:
- Info
description: |
Get genesis.
Upon success, the `Cache-Control` header will be set with the default
maximum age.
responses:
"200":
description: Genesis results.
content:
application/json:
schema:
$ref: "#/components/schemas/GenesisResponse"
"500":
description: Error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/genesis_chunked:
get:
summary: Get Genesis in multiple chunks
operationId: genesis_chunked
tags:
- Info
description: |
Get genesis document in multiple chunks to make it easier to iterate
through larger genesis structures. Each chunk is produced by converting
the genesis document to JSON and then splitting the resulting payload
into 16MB blocks, and then Base64-encoding each block.
Upon success, the `Cache-Control` header will be set with the default
maximum age.
parameters:
- in: query
name: chunk
description: Sequence number of the chunk to download.
schema:
type: integer
default: 0
example: 1
responses:
"200":
description: Genesis chunk response.
content:
application/json:
schema:
$ref: "#/components/schemas/GenesisChunkedResponse"
"500":
description: Error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/dump_consensus_state:
get:
summary: Get consensus state
operationId: dump_consensus_state
tags:
- Info
description: |
Get consensus state.
Not safe to call from inside the ABCI application during a block execution.
responses:
"200":
description: |
Complete consensus state.
See https://pkg.go.dev/github.com/tendermint/tendermint/types?tab=doc#Vote.String for Vote string description.
content:
application/json:
schema:
$ref: "#/components/schemas/DumpConsensusResponse"
"500":
description: Error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/consensus_state:
get:
summary: Get consensus state
operationId: consensus_state
tags:
- Info
description: |
Get consensus state.
Not safe to call from inside the ABCI application during a block execution.
responses:
"200":
description: consensus state results.
content:
application/json:
schema:
$ref: "#/components/schemas/ConsensusStateResponse"
"500":
description: Error
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorResponse"
/consensus_params:
get:
summary: Get consensus parameters