When using sql.Int parameter type = parameter.type.validate is not a function

I’m attempting to execute a query with a number(.Int) parameter type.

My parameter/query looks like this:

var arg = { name: 'id', type: sql.Int, value: 1 };
req.input(arg.name, arg.type, arg.value);

req.query(myQuery, cb);

When it tries to execute that query I get an error in tedious:

.../node_modules/mssql/node_modules/tedious/lib/request.js:144
      value = parameter.type.validate(parameter.value);
                             ^
TypeError: parameter.type.validate is not a function

When I omit the type from the “req.input” it runs fine, it also runs find if I use NVarChar as the type. The SQL column I’m using that parameter to check against in a WHERE clause is a Int, identity column so I feel like sql.Int is the right type for me.

Can anyone explain why I’m getting this error?

[rdavidso]

I can also confirm with @CollinEstes that having two different imported versions of mssql results in this exact same issue.

[thiagotigaz]

I can also confirm with @CollinEstes that having two different imported versions of mssql results in this exact same issue.

I found out this happens when using knex and mssql and having two different modules using mssql. Even though it’s the same version it fails, I’m having to require mssql in the same module that starts the knex connection and then inject it in the other module. If I do require mssql in the other module that doesn’t start knex it fails. This is crazy and took me a lot of time to figure out. My suspicion is that might modify the mssql dependency.