init

lib/mssql.js

@@ -0,0 +1,57 @@
+const SQL = require('mssql')
+const log = require('./log')
+
+//
+// Declare internals
+//
+const internals = {}
+
+//
+// Connect to the db and create a connection
+// pool
+//
+module.exports.connect = function(config) {
+  return SQL.connect(config.source.uri)
+    .then(function(pool) {
+      internals.pool = pool
+    })
+}
+
+//
+// Returns all results in one batch
+//
+module.exports.fetch = function(query) {
+  return internals.pool.request().query(query)
+}
+
+//
+// Delivers results to the specified write
+// stream. Use this for large result sets.
+//
+module.exports.pipe = function(query, writable) {
+  //
+  // Create the request
+  //
+  const request = internals.pool.request()
+  //
+  // Attach the writable stream
+  //
+  request.pipe(writable)
+  //
+  // Submit the query
+  //
+  request.query(query)
+  //
+  // Return the writable stream for
+  // chaining
+  //
+  return writable
+}
+
+//
+// Set up an error handler
+//
+SQL.on('error', function(err) {
+  log.error(err)
+  throw(err)
+})