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From each pico's perspective there is an receiving channel , Rx , and an transmitting channel, Tx. The pico receives events and queries from the other pico in the subscriptions over the Rx channel and makes queries and sends events to the other pico using the Tx channel.
Subscriptions can exist between any two picos. They do not have to have the same parent. In the Forever application, for example, the picos belonged to different people and represented their personal contact information.
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Subscription Rejection Flow
Subscription Events
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Overview
Event Domain | Event Type | Actions | Use |
|---|---|---|---|
| wrangler | subscription | creates outbound pending subscription and sends pending_subscription event to external pico | Creates a new outbound pending subscription |
| wrangler | pending_subscription | creates inbound pending subscription | Creates a new inbound pending subscription |
| wrangler | pending_subscription_approval | sends pending_subscription_approved event with inbound_eci and outbound status to external pico and raises pending_subscription_approved with inbound status | Aprove inbound pending subscription |
| wrangler | subscription_cancellation | inbound_rejection | outbound_cancellation | sends subscription_removal event with eci and status and raise the same event to self | Alert external pico to remove subscriptions and alert self to remove subscription |
| wrangler | established_removal | inbound_removal | outbound_removal | deletes channel used for subscription and updates subscription ruleset persistance | Internally for removing channel used for subscription |
Events Users
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Could Raise
- wrangler:subscription
- wrangler:pending_subscription_approval
- wrangler:outbound_cancellation
- wrangler:inbound_rejection
- wrangler:subscription_cancellation
Events Users
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Could React To
- wrangler:subscription_added
- wrangler:subscription_removed
- wrangler:subscription_added
Event Attributes
wrangler:subscription (pico A)
| Name | Default | Use | |||
|---|---|---|---|---|---|
wellKnown_Tx (required) | no default | the subscription process needs one of pico B's existing eci's | |||
name (optional) | random English word | name of channel to be created. | |||
channel_type (optional) | "Tx_Rx" | describes each pico's new channel created for the subscription | |||
Rx_role (optional) | no default | describes pico A (self) in the context of the subscription | name (optional) | string including a random English word | name of channel to be created. |
wellKnown_Tx (required) | no default | the subscription process needs one of pico B's existing eci's | |||
subscriber_host (optional) | no default | the public DNS name of the engine hosting pico B (only needed if different from pico A's) - e.g. "https://localhost:8080" | |||
Tx_role (optional) | no default | describes pico B in the context of the subscription |
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| Code Block | ||||||
|---|---|---|---|---|---|---|
| ||||||
[
{
"Tx": "Q4aosn4DiPdEEpqwZZGEbh",
"Rx": "MvgUk1pHSFHqtzpUKkJErC",
"Tx_verify_key": "Da2dgGAEFPLJV4bTP6kYTdphUXcJaQ5Zrnq5rnMXS5UZ",
"Tx_public_key": "39V93tWrxWBK2Anez4Mz6J6ec8eX3v7ZcTEdsEMSL42a"
}
{
"Rx_role": "teacher",
"Tx_role": "student",
"Tx_host": "http://localhost:8040",
"Tx": "WeEHHsfEVoS2to7LSpyrC8",
"Rx": "SCmhMnquJrwxoM5SLmofjv",
"Tx_verify_key": "HA3Dc9K5H4g2njJ6yFGsoi6d3tchs7RN91d9sbpJupi4",
"Tx_public_key": "BVr8EBML6cbRtUvaxDV44TXjN1dHRiwFS7XpNiAfrGqC"
}
] |