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StartupBuilder
by startups.studio
by Startups.Studio
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APIGrowthRegistration

Registration routes: create, get, list

The Registration Verbs create, get, list as api.sb routes, with inputs, result, refusals and an example.

Reference for Registration, one group of Registration routes.

Registration.create

Creates a Registration. Verb page.

Text
POST /{namespace}/registrations

Body, as JSON: the inputs. Emits Registration.created.

Inputs

InputTypeRequiredDescription
registeredAtdatetimeWhen the place was confirmed.
gatheringGatheringA Gathering admits Registrations up to its capacity, then waitlists the rest.
contactContactEach Registration holds one Contact’s place; one Contact registers for many Gatherings.

Returns

OutputTypeRequiredDescription
registrationRegistrationrequiredThe Registration.

Refuses when

CheckErrorFixThen call
The key is valid, but its scopes do not allow this operation.forbiddenUse a key whose scopes cover the operation, or ask an owner of the namespace to grant them.None.

Example

Terminal
curl -X POST https://api.sb/leaseline.app/registrations \
  -H "Authorization: Bearer $STARTUP_BUILDER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"registeredAt":"2026-10-22T12:00:00Z"}'
JSON
{
  "api": "https://api.sb/leaseline.app",
  "registration": {
    "$id": "https://api.sb/leaseline.app/registrations/registration_95lvb7R17L",
    "$type": "Registration",
    "status": "invited"
  },
  "action": {
    "$id": "https://api.sb/leaseline.app/actions/act_br07HsG8MG",
    "operation": "Registration.create",
    "status": "done"
  },
  "links": {
    "self": "https://api.sb/leaseline.app/actions/act_br07HsG8MG"
  }
}

Registration.get

Returns one Registration by id. Verb page.

Text
GET /{namespace}/registrations/{id}

Path: id. Query: the other inputs. Reads only: it emits no Event.

Inputs

InputTypeRequiredDescription
idstringrequiredThe id of the Registration.
atstringA time or Version name: the record as it stood then. Unset: as it stands now.

Returns

OutputTypeRequiredDescription
registrationRegistrationrequiredThe Registration.

Refuses when

CheckErrorFixThen call
The key is valid, but its scopes do not allow this operation.forbiddenUse a key whose scopes cover the operation, or ask an owner of the namespace to grant them.None.

Example

Terminal
curl https://api.sb/leaseline.app/registrations/registration_95lvb7R17L \
  -H "Authorization: Bearer $STARTUP_BUILDER_API_KEY"
JSON
{
  "api": "https://api.sb/leaseline.app",
  "$type": "Registration",
  "$id": "https://api.sb/leaseline.app/registrations/registration_95lvb7R17L",
  "registration": {
    "$id": "https://api.sb/leaseline.app/registrations/registration_95lvb7R17L",
    "$type": "Registration",
    "status": "invited"
  },
  "links": {
    "self": "https://api.sb/leaseline.app/registrations/registration_95lvb7R17L",
    "up": "https://api.sb/leaseline.app/registrations"
  },
  "actions": {
    "admit": "https://api.sb/leaseline.app/registrations/registration_95lvb7R17L/admit",
    "approve": "https://api.sb/leaseline.app/registrations/registration_95lvb7R17L/approve",
    "attend": "https://api.sb/leaseline.app/registrations/registration_95lvb7R17L/attend"
  }
}

Registration.list

Returns Registrations, newest first, one page at a time. Verb page.

Text
GET /{namespace}/registrations

Query: the inputs. Reads only: it emits no Event.

Inputs

InputTypeRequiredDescription
limitintegerAt most this many records, up to 100. The default is 20.
afterstringThe cursor from the previous page.
wherestringA filter over the properties, such as paidAt = null and total.amount > 500.
sortstringProperties to sort by, comma-separated; a leading minus sorts descending.
totalbooleanTrue adds the match count as meta.total, exact up to 10,000 matches and estimated above.
facetsstringProperties to count by value, comma-separated, returned as meta.facets.
fieldsstringProperties to return on each record, comma-separated; $id and $type always return.
includestringRelated records to embed in place of their URLs, comma-separated.
depthintegerHow many levels of related records to embed. The default is 1.
qstringWords to match across the text properties, ranked by relevance.
matchstringRanks the search by words, or meaning; words is the default.

Returns

OutputTypeRequiredDescription
registrationslist of RegistrationrequiredOne page of Registrations.

Refuses when

CheckErrorFixThen call
The key is valid, but its scopes do not allow this operation.forbiddenUse a key whose scopes cover the operation, or ask an owner of the namespace to grant them.None.

Example

Terminal
curl "https://api.sb/leaseline.app/registrations?limit=20" \
  -H "Authorization: Bearer $STARTUP_BUILDER_API_KEY"
JSON
{
  "api": "https://api.sb/leaseline.app",
  "$type": "Registration",
  "registrations": [
    {
      "$id": "https://api.sb/leaseline.app/registrations/registration_95lvb7R17L",
      "$type": "Registration",
      "status": "invited"
    }
  ],
  "meta": {
    "limit": 20,
    "after": "registration_95lvb7R17L"
  },
  "links": {
    "self": "https://api.sb/leaseline.app/registrations?limit=20",
    "next": "https://api.sb/leaseline.app/registrations?after=registration_95lvb7R17L"
  }
}

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