回答編集履歴
2
mysqlを使って自前のPromiseで処理するとすると...
answer
CHANGED
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@@ -45,4 +45,39 @@
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45
45
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console.log(rows);
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46
46
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connection.end();
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47
47
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})();
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48
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+
```
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49
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+
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50
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+
最後に上のサンプルをmysqlを使って自前のPromiseで処理するとすると...
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51
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```javascript
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52
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const mysql = require('mysql');
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53
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+
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54
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async function mysql_createConnection(option) {
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55
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return Promise.resolve(mysql.createConnection(option));
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56
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}
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57
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+
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58
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async function connection_query(connection, query) {
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59
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return new Promise((resolve, reject) => {
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60
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connection.query(query, (error, results, fields) => {
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61
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if (error) {
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62
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reject(error);
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63
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} else {
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64
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resolve(results);
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65
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}
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66
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});
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67
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})
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68
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}
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69
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+
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70
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(async () => {
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71
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const connection = await mysql_createConnection({
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72
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host: 'localhost',
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73
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user: 'homestead',
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74
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database: 'homestead',
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75
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password: 'secret',
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76
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port: '13306'
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77
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});
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78
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+
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79
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const rows = await connection_query(connection, `SELECT * FROM item;`);
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80
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console.log(rows);
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81
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connection.end();
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82
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})();
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48
83
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```
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1
一応promise-mysqlのサンプルも書いときました。
answer
CHANGED
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@@ -26,4 +26,23 @@
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26
26
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isRegistered('hogehoge', (result)=>{
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27
27
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console.log(result);
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28
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});
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29
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+
```
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30
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+
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31
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+
一応promise-mysqlのサンプルも書いときました。
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32
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```javascript
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33
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const mysql = require('promise-mysql');
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34
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+
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35
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(async () => {
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36
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const connection = await mysql.createConnection({
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37
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host: 'localhost',
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38
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user: 'homestead',
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39
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database: 'homestead',
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40
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password: 'secret',
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41
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port: '13306'
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42
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});
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43
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+
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44
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const rows = await connection.query(`SELECT * FROM item;`);
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45
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console.log(rows);
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46
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connection.end();
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47
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})();
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29
48
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```
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