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Settings.js
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Settings.js
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class Settings {
constructor(httpRequest, jwt, settingBaseUrl) {
if (httpRequest === undefined || jwt === undefined || settingBaseUrl === undefined) {
throw new Error('Settings constructor: Missing arguments');
}
this._httpRequest = httpRequest;
this._JWT = jwt;
this._settingBaseUrl = settingBaseUrl;
}
_checkErrorResponse(expectedStatusCode, actualStatusCode, respBody, actualStatusMessage) {
if (actualStatusCode !== expectedStatusCode) {
let statusMsg = (actualStatusMessage === '' || actualStatusMessage === undefined) ? '' : '(' + actualStatusMessage + ')';
let errorObject = { statusCode: `${actualStatusCode}${statusMsg}`, errorBody: respBody };
throw new Error(JSON.stringify(errorObject));
};
}
_tryParseJSON(stringToParse) {
try {
return JSON.parse(stringToParse);
} catch (e) {
return stringToParse;
}
}
get(settingId) {
return this._httpRequest.get(`${this._settingBaseUrl}${settingId}`, '', this._JWT)
.then(resp => {
this._checkErrorResponse(200, resp.statusCode, resp.body, resp.statusMessage);
let body = (typeof resp.body === 'string') ? JSON.parse(resp.body) : resp.body;
return body;
})
.catch(err => {
let error = {
origin: 'Settings.get',
error: this._tryParseJSON(err.message) // return as object if JSON, string if not parsable
};
throw new Error(JSON.stringify(error));
});
}
list(query) {
return this._httpRequest.get(`${this._settingBaseUrl}`, query, this._JWT)
.then(resp => {
this._checkErrorResponse(200, resp.statusCode, resp.body, resp.statusMessage);
let body = (typeof resp.body === 'string') ? JSON.parse(resp.body) : resp.body;
return body;
})
.catch(err => {
let error = {
origin: 'Settings.list',
error: this._tryParseJSON(err.message)
};
throw new Error(JSON.stringify(error));
});
}
watch(params, query) {
return this._httpRequest.post(`${this._settingBaseUrl}/watch`, params, this._JWT, query)
.then(resp => {
this._checkErrorResponse(200, resp.statusCode, resp.body, resp.statusMessage);
let body = (typeof resp.body === 'string') ? JSON.parse(resp.body) : resp.body;
return body;
})
.catch(err => {
let error = {
origin: 'Settings.watch',
error: this._tryParseJSON(err.message)
};
throw new Error(JSON.stringify(error));
});
}
}
module.exports = Settings;