Changed frames http module to use async/await

no issue

- It was hard to plug in with additional code into current `.then` based chain. Refactoring to use a more modern syntax helps with readability and allows for easier edits
This commit is contained in:
Naz 2022-04-06 14:48:30 +08:00
parent 3d40952632
commit cf8be34c43

View File

@ -13,7 +13,7 @@ const models = require('../../models');
* @return {Function}
*/
const http = (apiImpl) => {
return (req, res, next) => {
return async (req, res, next) => {
debug(`External API request to ${req.url}`);
let apiKey = null;
let integration = null;
@ -60,69 +60,67 @@ const http = (apiImpl) => {
data: apiImpl.data
});
apiImpl(frame)
.then((result) => {
debug(`External API request to ${frame.docName}.${frame.method}`);
return shared.headers.get(result, apiImpl.headers, frame)
.then(headers => ({result, headers}));
})
.then(({result, headers}) => {
// CASE: api ctrl wants to handle the express response (e.g. streams)
if (typeof result === 'function') {
debug('ctrl function call');
return result(req, res, next);
try {
const result = await apiImpl(frame);
debug(`External API request to ${frame.docName}.${frame.method}`);
const headers = await shared.headers.get(result, apiImpl.headers, frame);
// CASE: api ctrl wants to handle the express response (e.g. streams)
if (typeof result === 'function') {
debug('ctrl function call');
return result(req, res, next);
}
let statusCode = 200;
if (typeof apiImpl.statusCode === 'function') {
statusCode = apiImpl.statusCode(result);
} else if (apiImpl.statusCode) {
statusCode = apiImpl.statusCode;
}
res.status(statusCode);
// CASE: generate headers based on the api ctrl configuration
res.set(headers);
const send = (format) => {
if (format === 'plain') {
debug('plain text response');
return res.send(result);
}
let statusCode = 200;
if (typeof apiImpl.statusCode === 'function') {
statusCode = apiImpl.statusCode(result);
} else if (apiImpl.statusCode) {
statusCode = apiImpl.statusCode;
}
debug('json response');
res.json(result || {});
};
res.status(statusCode);
let responseFormat;
// CASE: generate headers based on the api ctrl configuration
res.set(headers);
if (apiImpl.response){
if (typeof apiImpl.response.format === 'function') {
const apiResponseFormat = apiImpl.response.format();
const send = (format) => {
if (format === 'plain') {
debug('plain text response');
return res.send(result);
}
debug('json response');
res.json(result || {});
};
let responseFormat;
if (apiImpl.response){
if (typeof apiImpl.response.format === 'function') {
const apiResponseFormat = apiImpl.response.format();
if (apiResponseFormat.then) { // is promise
return apiResponseFormat.then((formatName) => {
send(formatName);
});
} else {
responseFormat = apiResponseFormat;
}
if (apiResponseFormat.then) { // is promise
return apiResponseFormat.then((formatName) => {
send(formatName);
});
} else {
responseFormat = apiImpl.response.format;
responseFormat = apiResponseFormat;
}
} else {
responseFormat = apiImpl.response.format;
}
}
send(responseFormat);
})
.catch((err) => {
req.frameOptions = {
docName: frame.docName,
method: frame.method
};
send(responseFormat);
} catch (err) {
req.frameOptions = {
docName: frame.docName,
method: frame.method
};
next(err);
});
next(err);
}
};
};