MySQL connector
3 minute read
The MySQL data connector is a plugin for API Builder that can connect to your MySQL database instance and interrogate your schema. It will automatically provision Models into your application, and optionally, automatically generate a rich CRUD API to the underlying tables. The Models can be used programmatically, or they can be used within the flow editor to interact with your database.
Minimum requirements
The following are the supported versions and features and the approximate memory and disk space requirements.
Supported Versions
- MySQL 5.7
Memory
- Approximately 7 MB
Disk space
- Approximately 10 MB
Supported features
- Automatic generation of Models from SQL tables
- Automatic generation of API for Models
- Full CRUD operations on tables via Models
- Connection pooling
Installation
To install the MySQL connector, execute the following command:
npm install --no-optional @axway/api-builder-plugin-dc-mysql
A configuration file is generated for you and placed into the /conf directory of your API Builder project. By default, we use a host of localhost, and expect user and password to come from the OS host environment.
Configuration
Once the plugin is installed, the configuration file is located in <project>/conf/mysql.default.js.
| Option name | Type | Description |
|---|---|---|
| connector | string | Must be: @axway/api-builder-plugin-dc-mysql |
| connectionPooling | boolean | Enables connection pooling for better performance and scalability. |
| connectionLimit | number | The number of simultaneous connections when connectionPooling is enabled. |
| host | string | The database host. |
| port | number | The database port. |
| database | string | The database instance name. |
| user | string | The user with which to connect to the database. |
| password | string | The user’s password with which to connect to the database. |
| generateModelsFromSchema | boolean | If enabled, API Builder will automatically interrogate the database and auto-generate Models from SQL tables. |
| modelAutogen | boolean | If enabled, API Builder will automatically generate a full and rich CRUD API from the generated Models. |
Note
Themysql library used by this connector depends on the MySQL server setting NO_BACKSLASH_ESCAPES to mitigate against SQL injection attacks. The setting must be disabled (which is the default setting for MySQL servers).
Usage
After you configure the connector, you can start up your API Builder project and visit the console (normally found under http://localhost:8080/console). Your database tables will be listed on the Models tab of the console. Now, you can click on the Gear icon to the right of the table names and generate flow-based APIs.
You can also reference the connector in a custom model.
const Account = APIBuilder.Model.extend('Account', {
fields: {
Name: { type: String, required: true }
},
connector: 'mysql'
});
If you want to map a specific model to a specific table, use metadata. For example, to map the account model to the accounts table set it as:
const Account = APIBuilder.Model.extend('account', {
fields: {
Name: { type: String, required: false, validator: /[a-zA-Z]{3,}/ }
},
connector: 'mysql',
metadata: {
'mysql': {
table: 'accounts'
}
}
});
Known issues and limitations
The following are the MySQL connector known issues and limitations:
- Only supports SQL tables.
- Does not support range queries
For a list of known issues and limitations, refer to the API Builder known issues.