OpenRouter 接入教程

# POSIX shell: configure both environment variables first.
: "${OPENROUTER_API_KEY:?Set OPENROUTER_API_KEY first}"
: "${MODEL_ID:?Set MODEL_ID to a real model ID}"

curl --silent --show-error --include --max-time 90 \
  https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer ${OPENROUTER_API_KEY}" \
  -H "Content-Type: application/json" \
  --data "{
    \"model\": \"${MODEL_ID}\",
    \"messages\": [
      {\"role\": \"user\", \"content\": \"Say hello in Chinese.\"}
    ]
  }"

// Node.js 18+; run on a trusted machine, not in a browser.
const { OPENROUTER_API_KEY, MODEL_ID } = process.env;

async function main() {
  if (!OPENROUTER_API_KEY || !MODEL_ID || MODEL_ID === 'MODEL_ID') {
    throw new Error('Set OPENROUTER_API_KEY and a real MODEL_ID.');
  }

  const response = await fetch(
    'https://openrouter.ai/api/v1/chat/completions',
    {
      method: 'POST',
      headers: {
        Authorization: `Bearer ${OPENROUTER_API_KEY}`,
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({
        model: MODEL_ID,
        messages: [{ role: 'user', content: 'Say hello in Chinese.' }],
      }),
      signal: AbortSignal.timeout(90_000),
    }
  );

  const data = await response.json();
  const apiError = data.error
    ?? data.choices?.find((choice) => choice.error)?.error;
  if (!response.ok || apiError) {
    throw new Error(
      `Request failed (${apiError?.code ?? response.status}): `
      + (apiError?.message ?? response.statusText)
    );
  }

  const reply = data.choices?.[0]?.message?.content;
  if (typeof reply !== 'string' || !reply.trim()) {
    throw new Error('No text returned; inspect the response and model settings.');
  }
  console.log(reply);
}

main().catch((error) => {
  console.error(error.message);
  process.exitCode = 1;
});