Function parse

packages/pg-protocol/src/serializer.ts:72–100

(query: ParseOpts)

const emptyArray: any[] = []

const parse = (query: ParseOpts): Buffer => {
  // expect something like this:
  // { name: 'queryName',
  //   text: 'select * from blah',
  //   types: ['int8', 'bool'] }

  // normalize missing query names to allow for null
  const name = query.name || ''
  if (name.length > 63) {
    console.error('Warning! Postgres only supports 63 characters for query names.')
    console.error('You supplied %s (%s)', name, name.length)
    console.error('This can cause conflicts and silent errors executing queries')
  }

  const types = query.types || emptyArray

  const len = types.length

  const buffer = writer
    .addCString(name) // name of query
    .addCString(query.text) // actual query text
    .addInt16(len)

  for (let i = 0; i < len; i++) {
    buffer.addInt32(types[i])
  }

  return writer.flush(code.parse)
}

type ValueMapper = (param: any, index: number) => any