API
Table of Contents
Introduction
We provide an example of a YAML API file.
File Example
openapi: 3.0.2
info:
version: '1.0.0'
title: Mycelium management
contact:
url: 'https://github.com/threefoldtech/mycelium'
license:
name: Apache 2.0
url: 'https://github.com/threefoldtech/mycelium/blob/master/LICENSE'
description: |
This is the specification of the **mycelium** management API. It is used to perform admin tasks on the system, and
to perform administrative duties.
externalDocs:
description: For full documentation, check out the mycelium github repo.
url: 'https://github.com/threefoldtech/mycelium'
tags:
- name: Admin
description: Administrative operations
- name: Peer
description: Operations related to peer management
- name: Message
description: Operations on the embedded message subsystem
servers:
- url: 'http://localhost:8989'
paths:
'/api/v1/peers':
get:
tags:
- Admin
- Peer
summary: List known peers
description: |
List all peers known in the system, and info about their connection.
This includes the endpoint, how we know about the peer, the connection state, and if the connection is alive the amount
of bytes we've sent to and received from the peer.
operationId: getPeers
responses:
'200':
description: Succes
content:
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/PeerStats'
'/api/v1/messages':
get:
tags:
- Message
summary: Get a message from the inbound message queue
description: |
Get a message from the inbound message queue. By default, the message is removed from the queue and won't be shown again.
If the peek query parameter is set to true, the message will be peeked, and the next call to this endpoint will show the same message.
This method returns immediately by default: a message is returned if one is ready, and if there isn't nothing is returned. If the timeout
query parameter is set, this call won't return for the given amount of seconds, unless a message is received
operationId: popMessage
parameters:
- in: query
name: peek
required: false
schema:
type: boolean
description: Whether to peek the message or not. If this is true, the message won't be removed from the inbound queue when it is read
example: true
- in: query
name: timeout
required: false
schema:
type: integer
format: int64
minimum: 0
description: |
Amount of seconds to wait for a message to arrive if one is not available. Setting this to 0 is valid and will return
a message if present, or return immediately if there isn't
example: 60
- in: query
name: topic
required: false
schema:
type: string
format: byte
minLength: 0
maxLength: 340
description: |
Optional filter for loading messages. If set, the system checks if the message has the given string at the start. This way
a topic can be encoded.
example: example.topic
responses:
'200':
description: Message retrieved
content:
application/json:
schema:
$ref: '#/components/schemas/InboundMessage'
'204':
description: No message ready
post:
tags:
- Message
summary: Submit a new message to the system.
description: |
Push a new message to the systems outbound message queue. The system will continuously attempt to send the message until
it is either fully transmitted, or the send deadline is expired.
operationId: pushMessage
parameters:
- in: query
name: reply_timeout
required: false
schema:
type: integer
format: int64
minimum: 0
description: |
Amount of seconds to wait for a reply to this message to come in. If not set, the system won't wait for a reply and return
the ID of the message, which can be used later. If set, the system will wait for at most the given amount of seconds for a reply
to come in. If a reply arrives, it is returned to the client. If not, the message ID is returned for later use.
example: 120
requestBody:
content:
application/json:
schema:
$ref: '#/components/schemas/PushMessageBody'
responses:
'200':
description: We received a reply within the specified timeout
content:
application/json:
schema:
$ref: '#/components/schemas/InboundMessage'
'201':
description: Message pushed successfully, and not waiting for a reply
content:
application/json:
schema:
$ref: '#/components/schemas/PushMessageResponseId'
'408':
description: The system timed out waiting for a reply to the message
content:
application/json:
schema:
$ref: '#/components/schemas/PushMessageResponseId'
'/api/v1/messsages/reply/{id}':
post:
tags:
- Message
summary: Reply to a message with the given ID
description: |
Submits a reply message to the system, where ID is an id of a previously received message. If the sender is waiting
for a reply, it will bypass the queue of open messages.
operationId: pushMessageReply
parameters:
- in: path
name: id
required: true
schema:
type: string
format: hex
minLength: 16
maxLength: 16
example: abcdef0123456789
requestBody:
content:
application/json:
schema:
$ref: '#/components/schemas/PushMessageBody'
responses:
'204':
description: successfully submitted the reply
'/api/v1/messages/status/{id}':
get:
tags:
- Message
summary: Get the status of an outbound message
description: |
Get information about the current state of an outbound message. This can be used to check the transmission
state, size and destination of the message.
operationId: getMessageInfo
parameters:
- in: path
name: id
required: true
schema:
type: string
format: hex
minLength: 16
maxLength: 16
example: abcdef0123456789
responses:
'200':
description: Success
content:
application/json:
schema:
$ref: '#/components/schemas/MessageStatusResponse'
'404':
description: Message not found
components:
schemas:
Endpoint:
description: Identification to connect to a peer
type: object
properties:
proto:
description: Protocol used
type: string
enum:
- 'tcp'
- 'quic'
example: tcp
socketAddr:
description: The socket address used
type: string
example: 192.0.2.6:9651
PeerStats:
description: Info about a peer
type: object
properties:
endpoint:
$ref: '#/components/schemas/Endpoint'
type:
description: How we know about this peer
type: string
enum:
- 'static'
- 'inbound'
- 'linkLocalDiscovery'
example: static
connectionState:
description: The current state of the connection to the peer
type: string
enum:
- 'alive'
- 'connecting'
- 'dead'
example: alive
connectionTxBytes:
description: The amount of bytes transmitted on the current connection
type: integer
format: int64
minimum: 0
example: 464531564
connectionRxBytes:
description: The amount of bytes received on the current connection
type: integer
format: int64
minimum: 0
example: 64645089
InboundMessage:
description: A message received by the system
type: object
properties:
id:
description: Id of the message, hex encoded
type: string
format: hex
minLength: 16
maxLength: 16
example: 0123456789abcdef
srcIp:
description: Sender overlay IP address
type: string
format: ipv6
example: 249:abcd:0123:defa::1
srcPk:
description: Sender public key, hex encoded
type: string
format: hex
minLength: 64
maxLength: 64
example: fedbca9876543210fedbca9876543210fedbca9876543210fedbca9876543210
dstIp:
description: Receiver overlay IP address
type: string
format: ipv6
example: 34f:b680:ba6e:7ced:355f:346f:d97b:eecb
dstPk:
description: Receiver public key, hex encoded. This is the public key of the system
type: string
format: hex
minLength: 64
maxLength: 64
example: 02468ace13579bdf02468ace13579bdf02468ace13579bdf02468ace13579bdf
topic:
description: An optional message topic
type: string
format: byte
minLength: 0
maxLength: 340
example: hpV+
payload:
description: The message payload, encoded in standard alphabet base64
type: string
format: byte
example: xuV+
PushMessageBody:
description: A message to send to a given receiver
type: object
properties:
dst:
$ref: '#/components/schemas/MessageDestination'
topic:
description: An optional message topic
type: string
format: byte
minLength: 0
maxLength: 340
example: hpV+
payload:
description: The message to send, base64 encoded
type: string
format: byte
example: xuV+
MessageDestination:
oneOf:
- description: An IP in the subnet of the receiver node
type: object
properties:
ip:
description: The target IP of the message
format: ipv6
example: 249:abcd:0123:defa::1
- description: The hex encoded public key of the receiver node
type: object
properties:
pk:
description: The hex encoded public key of the target node
type: string
minLength: 64
maxLength: 64
example: bb39b4a3a4efd70f3e05e37887677e02efbda14681d0acd3882bc0f754792c32
PushMessageResponseId:
description: The ID generated for a message after pushing it to the system
type: object
properties:
id:
description: Id of the message, hex encoded
type: string
format: hex
minLength: 16
maxLength: 16
example: 0123456789abcdef
MessageStatusResponse:
description: Information about an outobund message
type: object
properties:
dst:
description: Ip address of the receiving node
type: string
format: ipv6
example: 249:abcd:0123:defa::1
state:
$ref: '#/components/schemas/TransmissionState'
created:
description: Unix timestamp of when this message was created
type: integer
format: int64
example: 1649512789
deadline:
description: Unix timestamp of when this message will expire. If the message is not received before this, the system will give up
type: integer
format: int64
example: 1649513089
msgLen:
description: Length of the message in bytes
type: integer
minimum: 0
example: 27
TransmissionState:
description: The state of an outbound message in it's lifetime
oneOf:
- type: string
enum: ['pending', 'received', 'read', 'aborted']
example: 'received'
- type: object
properties:
sending:
type: object
properties:
pending:
type: integer
minimum: 0
example: 5
sent:
type: integer
minimum: 0
example: 17
acked:
type: integer
minimum: 0
example: 3
example: 'received'