docomo 雑談対話 API をさくっと php で使う

docomo_dialogue_api.php

<?php
/*****
 * https://dev.smt.docomo.ne.jp/?p=docs.api.page&api_docs_id=5
 *****/
function webnist($text) {
  $context_file = dirname(__FILE__).'/.docomoapi.context';
  $api_key = 'your API key here';
  $api_url = sprintf('https://api.apigw.smt.docomo.ne.jp/dialogue/v1/dialogue?APIKEY=%s', $api_key);
  $req_body = array('utt' => $text);
  if ( file_exists($context_file) ) {
    $req_body['context'] = file_get_contents($context_file);
  }

  $headers = array(
    'Content-Type: application/json; charset=UTF-8',
    );
  $options = array(
    'http'=>array(
        'method'  => 'POST',
        'header'  => implode( "\r\n", $headers ),
        'content' => json_encode($req_body),
        )
    );
  $stream = stream_context_create( $options );

  $res = json_decode(file_get_contents($api_url, false, $stream));
  if (isset($res->context)) {
    file_put_contents($context_file, $res->context);
  }

  return isset($res->utt) ? $res->utt : '';
}

gistfile1.md

curl で試したいときは、こんな感じ

curl -s --insecure \
 -H "Content-Type: application/json; charset=UTF-8" \
 https://api.apigw.smt.docomo.ne.jp/dialogue/v1/dialogue?APIKEY=XXXXXX \
 -d "{\"utt\":\"アイス食べたい\"}"