šŸ  Gofer Engine > Msg Class > Decoding

Decoding

HL7 messages can be decoded by simply passing the raw string message to the Msg constructor:

const msg = new Msg(HL7_string)

To see the JSON decoded message, you can use the json() method:

const json = new Msg(HL7_string).json()
console.log(JSON.stringify(json, undefined, 2))

You can pass an argument to the json method to normalize the JSON format

const normalized = new Msg(HL7_string).json(true)
console.log(JSON.stringify(normalized, undefined, 2))

If you have a JSON object that you want to replace the decoded JSON object, you can use the setMsg method:

const foo = new Msg(HL7_string)
const bar = new Msg('MSH|^~\\&|...')
bar.setMsg(foo.json())

console.log(bar.json())

Encoding

To encode a message back to an HL7 string, you can use the ā€˜toStringā€™ method on the Msg class:

const msg = new Msg(HL7_string)
console.log(msg.toString())