ts-ocpp

install

yarn add @voltbras/ts-ocpp
# OR
npm install @voltbras/ts-ocpp --save

instruction

central system

// port and request handler as arguments
const centralSystem = new CentralSystem(3000, (req, { chargePointId }) => {
 switch (req.action) {
 case 'Heartbeat':
 // returns a successful response
 // (we pass the action and ocpp version so typescript knows which fields are needed)
 return {
 action: req.action,
 ocppVersion: req.ocppVersion,
 currentTime: new Date().toISOString()
 };
 }
 throw new Error('message not supported');
});

// Returns a Either(Error or Success) object(functional, will not throw on error)
const response = await centralSystem.sendRequest({ chargePointId: '123', ocppVersion: 'v1.6-json', action: 'GetConfiguration', payload: {} });
// it can be used in a functional way
response.map(({ configurationKey }) => configurationKey[0].key);
// or can be used in the standard JS way(will throw if there was an error)
const unsafeResponse = response.unsafeCoerce();

chargepoint

// port, request handler and central system URL as arguments
const chargepoint = new ChargePoint(3001, req => {
 switch (action) {
 case 'GetConfiguration':
 // returns a successful response
 // (we pass the action and ocpp version so typescript knows which fields are needed)
 return {
 action: req.action,
 ocppVersion: req.ocppVersion,
 configurationKey: [],
 };
 }
 throw new Error('message not supported');
});

const response = await chargepoint.sendRequest({ action: 'Heartbeat', ocppVersion: '1.6-json', payload: {} );

troubleshooting