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Pealboard

Create a milestone

POST
/v1/milestones
curl --request POST \
  --url https://api.pealboard.com/v1/milestones \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{ "repositoryId": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0", "title": "example", "description": "example", "dueOn": "2026-12-01" }'

Creates the milestone in one repository. GitHub stores a due date as an instant at 08:00 UTC on the day named, so reading one back returns a time that was not sent; that is GitHub’s rule and the cache records what GitHub returned.

Access. Requires the member role or above (member, admin, owner). Creating a milestone writes to the customer’s GitHub repository under their installation. API-key scope: issues:write.

Authorizations

Section titled “Authorizations”

Request Body

Section titled “Request Body”
Media typeapplication/json
object
repositoryId
required

A UUID this API issued.

string format: uuid
title
required
string
>= 1 characters <= 255 characters
description
string
<= 1000 characters
dueOn

YYYY-MM-DD.

string format: date
Example
2026-12-01

Responses

Section titled “Responses”

201

Section titled “201”

The milestone.

Media typeapplication/json
object
id
required

A UUID this API issued.

string format: uuid
nodeId
required
string
repositoryId
required

A UUID this API issued.

string format: uuid
number
required
number
title
required
string
description
required
string | null
state
required
string
Allowed values: open closed
dueOn
required
string | null format: date-time
Example
{
  "state": "open"
}

401

Section titled “401”

No valid credentials.

Media typeapplication/json
object
error
required
object
code
required

A stable identifier for the kind of failure. Safe to branch on.

string
message
required

What went wrong, written for a person.

string
detail

Structured particulars, when there are any.

object
key
additional properties
remedy

What to do about it, when there is something to do.

string
requestId
required

Quote this when asking about a specific failure.

string
Examplegenerated
{
  "error": {
    "code": "example",
    "message": "example",
    "detail": {
      "additionalProperty": "example"
    },
    "remedy": "example",
    "requestId": "example"
  }
}

403

Section titled “403”

Authenticated, but not permitted.

Media typeapplication/json
object
error
required
object
code
required

A stable identifier for the kind of failure. Safe to branch on.

string
message
required

What went wrong, written for a person.

string
detail

Structured particulars, when there are any.

object
key
additional properties
remedy

What to do about it, when there is something to do.

string
requestId
required

Quote this when asking about a specific failure.

string
Examplegenerated
{
  "error": {
    "code": "example",
    "message": "example",
    "detail": {
      "additionalProperty": "example"
    },
    "remedy": "example",
    "requestId": "example"
  }
}

404

Section titled “404”

No such resource, or it is not visible to you.

Media typeapplication/json
object
error
required
object
code
required

A stable identifier for the kind of failure. Safe to branch on.

string
message
required

What went wrong, written for a person.

string
detail

Structured particulars, when there are any.

object
key
additional properties
remedy

What to do about it, when there is something to do.

string
requestId
required

Quote this when asking about a specific failure.

string
Examplegenerated
{
  "error": {
    "code": "example",
    "message": "example",
    "detail": {
      "additionalProperty": "example"
    },
    "remedy": "example",
    "requestId": "example"
  }
}

409

Section titled “409”

The request conflicts with the current state.

Media typeapplication/json
object
error
required
object
code
required

A stable identifier for the kind of failure. Safe to branch on.

string
message
required

What went wrong, written for a person.

string
detail

Structured particulars, when there are any.

object
key
additional properties
remedy

What to do about it, when there is something to do.

string
requestId
required

Quote this when asking about a specific failure.

string
Examplegenerated
{
  "error": {
    "code": "example",
    "message": "example",
    "detail": {
      "additionalProperty": "example"
    },
    "remedy": "example",
    "requestId": "example"
  }
}

422

Section titled “422”

The request did not match the expected shape.

Media typeapplication/json
object
error
required
object
code
required

A stable identifier for the kind of failure. Safe to branch on.

string
message
required

What went wrong, written for a person.

string
detail

Structured particulars, when there are any.

object
key
additional properties
remedy

What to do about it, when there is something to do.

string
requestId
required

Quote this when asking about a specific failure.

string
Examplegenerated
{
  "error": {
    "code": "example",
    "message": "example",
    "detail": {
      "additionalProperty": "example"
    },
    "remedy": "example",
    "requestId": "example"
  }
}

429

Section titled “429”

Rate limited. Retry after the interval in the header.

Media typeapplication/json
object
error
required
object
code
required

A stable identifier for the kind of failure. Safe to branch on.

string
message
required

What went wrong, written for a person.

string
detail

Structured particulars, when there are any.

object
key
additional properties
remedy

What to do about it, when there is something to do.

string
requestId
required

Quote this when asking about a specific failure.

string
Examplegenerated
{
  "error": {
    "code": "example",
    "message": "example",
    "detail": {
      "additionalProperty": "example"
    },
    "remedy": "example",
    "requestId": "example"
  }
}

502

Section titled “502”

GitHub or another dependency refused or did not answer. Nothing in the workspace changed.

Media typeapplication/json
object
error
required
object
code
required

A stable identifier for the kind of failure. Safe to branch on.

string
message
required

What went wrong, written for a person.

string
detail

Structured particulars, when there are any.

object
key
additional properties
remedy

What to do about it, when there is something to do.

string
requestId
required

Quote this when asking about a specific failure.

string
Examplegenerated
{
  "error": {
    "code": "example",
    "message": "example",
    "detail": {
      "additionalProperty": "example"
    },
    "remedy": "example",
    "requestId": "example"
  }
}