in sample/src/screens/ChatScreen.js [158:174]
async function createEventChat(eventId, userId, newMessage) {
const input = {
input: {
chatUserId: userId,
chatEventId: eventId,
content: newMessage,
},
};
let result = null;
try {
result = await API.graphql(graphqlOperation(createChat, input));
} catch (e) {
console.log(e);
}
return result;
}