Node.js - sqlstring alternative which allows named named replacements - sql

Question

The sqlstring node module allows creating of queries using an ordered array. So if I have a template query like:
sqlstring.format('Select * from users where id = ?', ['my_id'])
It will become:
Select * from users where id = 'my_id'
However here I need to remember the order of the question marks, so if the same thing is being in multiple places it becomes a hassle. Is there an alternative which allows me to do the following:
sqlstring.format('Select :id + :foo as bar from users where id = :id', {id: 1, foo: 3})
Which would become:
Select 1 + 3 as bar from users where id = 1
I know knex query builder does this, but I don't want install the entirety of knex just for the query builder.

Answer 1

You can use mysql2 package, that support that format:
Named placeholders
You can use named placeholders for parameters by setting
namedPlaceholders config value or query/execute time option. Named
placeholders are converted to unnamed ? on the client (mysql protocol
does not support named parameters). If you reference parameter
multiple times under the same name it is sent to server multiple
times.
connection.config.namedPlaceholders = true;
connection.execute('select :x + :y as z', {x: 1, y: 2}, function (err, rows) {
// statement prepared as "select ? + ? as z" and executed with [1,2] values
// rows returned: [ { z: 3 } ]
});
connection.execute('select :x + :x as z', {x: 1}, function (err, rows) {
// select ? + ? as z, execute with [1, 1]
});
connection.query('select :x + :x as z', {x: 1}, function (err, rows) {
// query select 1 + 1 as z
});