我是 JavasSript 的新手async
, await
and promise
特征。
我正在做的是,
async function sendTextMessage(text) {
console.log("----1----");
var messageData = {
message: {
text: text
}
};
await callSendAPI(messageData);
}
async function sendImageMessage(imageUrl) {
console.log("----2----");
var messageData = {
message: {
url: imageUrl
}
};
await callSendAPI(messageData);
}
async function sendQuickReply(replies) {
console.log("----3----");
var messageData = {
message: {
text: text,
quick_replies: replies
}
};
await callSendAPI(messageData);
}
async function callSendAPI(messageData) {
await request({
uri: 'https://graph.facebook.com/v2.6/me/messages',
qs: {
access_token: config.FB_PAGE_TOKEN
},
method: 'POST',
json: messageData
}, function(error, response, body) {
if (!error && response.statusCode == 200) {
var recipientId = body.recipient_id;
var messageId = body.message_id;
if (messageId) {
console.log("Successfully sent message with id %s to recipient %s",
messageId, recipientId);
} else {
console.log("Successfully called Send API for recipient %s",
recipientId);
}
} else {
console.error("Failed calling Send API", response.statusCode, response.statusMessage, body.error);
}
});
}
我在一个开关案例中调用此函数,例如,
async function send(){
await sendTextMessage(text);
await sendImageMessage(img);
await sendQuickReply(replies)
}
send()
但虽然回应显示sendImageMessage()
最后是因为当我发送时这个功能可能还没有准备好imageUrl
生成响应。