Call the HTTP API from any language

const BASE = `${process.env.MITHUNAI_URL}/mithunai/api/v1`
const HEADERS = {
  Authorization: `Bearer ${process.env.MITHUNAI_API_KEY}`,
  'Content-Type': 'application/json',
}

const created = await fetch(`${BASE}/conversations`, {
  method: 'POST',
  headers: HEADERS,
  body: JSON.stringify({ assistant_id: process.env.ASSISTANT_ID }),
})
if (!created.ok) throw new Error(`MITHUNAI ${created.status}`)
const { id: conversationId } = await created.json()

const response = await fetch(`${BASE}/conversations/${conversationId}/messages:stream`, {
  method: 'POST',
  headers: HEADERS,
  body: JSON.stringify({
    text: 'How do I restrict the widget to my own domain?',
    idempotency_key: crypto.randomUUID(),
  }),
})
if (!response.ok) throw new Error(`MITHUNAI ${response.status}`)

let answer = ''
let citations = []
let buffer = ''
const decoder = new TextDecoder()
for await (const chunk of response.body) {
  buffer += decoder.decode(chunk, { stream: true })
  let boundary
  while ((boundary = buffer.indexOf('\n\n')) !== -1) {
    const record = buffer.slice(0, boundary)
    buffer = buffer.slice(boundary + 2)
    const event = record.match(/^event: (.*)$/m)?.[1]
    const data = JSON.parse(record.match(/^data: (.*)$/m)?.[1] ?? '{}')
    if (event === 'answer.delta') answer += data.text
    else if (event === 'answer.replaced') answer = data.text
    else if (event === 'answer.sources') citations = data.citations
    else if (event === 'answer.completed')
      console.log({ answer, citations, abstained: data.abstained, reason: data.abstention_reason })
    else if (event === 'answer.interrupted') console.warn('Partial answer:', answer)
    else if (event === 'answer.error') console.error(data.code, data.message)
  }
}

CONVERSATION_ID=$(curl --silent --request POST "$MITHUNAI_URL/mithunai/api/v1/conversations" \
  --header "Authorization: Bearer $MITHUNAI_API_KEY" \
  --header "Content-Type: application/json" \
  --data '{"assistant_id": "'"$ASSISTANT_ID"'"}' | jq -r .id)

curl --no-buffer --request POST \
  "$MITHUNAI_URL/mithunai/api/v1/conversations/$CONVERSATION_ID/messages:stream" \
  --header "Authorization: Bearer $MITHUNAI_API_KEY" \
  --header "Content-Type: application/json" \
  --data '{"text": "How do I restrict the widget to my own domain?"}'