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global_functions.js
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global_functions.js
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const ValidationError = require('objection').ValidationError;
// The error returned by this function is handled in the error handler middleware in app.js.
createStatusCodeError = function (statusCode, message) {
return Object.assign(new Error(), {
statusCode,
message,
});
}
badRequestError = function (msg) {
return new ValidationError({
message: msg,
type: 'Validation',
data: {
message: msg
}
})
}
conflictError = function (res, msg = 'Request cannot be completed because fo a conflict', data = {}) {
return res.status(409).json({
success: false,
message: msg,
data: data
});
}
forbiddenError = function (msg) {
return createStatusCodeError(403, msg);
}
forbiddenResponse = function (res, msg = 'Not Allowed') {
return res.status(403).json(
forbiddenError(msg)
);
}
unauthorizedError = function (msg) {
return createStatusCodeError(401, msg);
}
notFoundError = function (msg) {
return createStatusCodeError(404, msg);
}
// Response handlers
successResponse = function (res, code, data, message) {
return res.status(code || 200).json({
success: true,
data,
message
})
}
okResponse = function (res, data, message) {
return successResponse(res, 200, data, message);
}
createdResponse = function (res, data, message) {
return successResponse(res, 201, data, message);
}
noContentResponse = function (res, message) {
return successResponse(res, 204, {}, message);
}
// Utility functions
slugify = function (Text) {
Text = Text || '';
return Text
.toLowerCase()
.replace(/[^\w ]+/g, '')
.replace(/ +/g, '-');
}
//global function that will help use handle promise rejections, this article talks about it http://blog.grossman.io/how-to-write-async-await-without-try-catch-blocks-in-javascript/
to = function (promise) {
return promise
.then(data => {
return [null, data];
}).catch(err => [pe(err)]);
}