Function fetchIssue

examples/ts-react-chat/src/sandbox-triage.ts:285–321

(
  repo: string,
  issueNumber: number,
)

/** Fetch one issue. Uses GITHUB_TOKEN when set (private repos / rate limits). */
export async function fetchIssue(
  repo: string,
  issueNumber: number,
): Promise<GitHubIssue> {
  const headers: Record<string, string> = {
    Accept: 'application/vnd.github+json',
    'User-Agent': 'tanstack-ai-sandbox-triage',
  }
  if (process.env.GITHUB_TOKEN) {
    headers.Authorization = `Bearer ${process.env.GITHUB_TOKEN}`
  }
  const res = await fetch(
    `https://api.github.com/repos/${repo}/issues/${issueNumber}`,
    { headers },
  )
  if (!res.ok) {
    throw new Error(
      `GitHub API ${res.status} ${res.statusText}: ${await res.text()}`,
    )
  }
  const issue = (await res.json()) as {
    number: number
    title: string
    body: string | null
    html_url: string
    pull_request?: unknown
  }
  if (issue.pull_request !== undefined) {
    throw new Error(`${repo}#${issueNumber} is a pull request, not an issue.`)
  }
  return {
    number: issue.number,
    title: issue.title,
    body: issue.body ?? '',
    url: issue.html_url,
  }
}

export function buildTriagePrompt(issue: GitHubIssue, repo: string): string {
  return [