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gatsby-node.js
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gatsby-node.js
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const axios = require('axios');
const querystring = require('querystring');
const camelCase = require('lodash/camelCase');
const crypto = require('crypto');
const { error, success } = require('./console');
const every = require('lodash/every');
const isArray = require('lodash/isArray');
const isObject = require('lodash/isObject');
const isEmpty = require('lodash/isEmpty');
const isString = require('lodash/isString');
const isUndefined = require('lodash/isUndefined');
const upperFirst = require('lodash/upperFirst');
/**
* @function
* @param {object} obj
* @param {object} obj.actions
* @param {function} obj.createNodeId
* @param {object} configOptions
* @param {string[]} [configOptions.languages]
* @param {string} configOptions.baseUrl
* @param {string} configOptions.serviceName
* @param {string[]} configOptions.types
* @param {object} configOptions.authentication
* @param {number} configOptions.pageSize
* @param {boolean} configOptions.pagination
* @returns {Promise}
* @see https://www.gatsbyjs.org/docs/source-plugin-tutorial/
* @see https://www.gatsbyjs.org/docs/node-apis/#sourceNodes
*/
exports.sourceNodes = (
{ actions, createNodeId },
{ languages, baseUrl, serviceName, types, authentication, pageSize = 50, pagination = true },
cb
) => {
axios.interceptors.request.use((request) => {
return request;
});
/**
* validate url configuration option.
*/
if (!isString(baseUrl) || isEmpty(baseUrl)) {
return error(
'you must provide a sitefinity api url in the gatsby-source-sitefinity plugin in gatsby-config.js'
);
}
/**
* validate url configuration option.
*/
if (!isString(serviceName) || isEmpty(serviceName)) {
return error(
'you must provide a sitefinity api serviceName in the gatsby-source-sitefinity plugin in gatsby-config.js'
);
}
/**
* @constant
* @type {boolean}
*/
const hasAuthentication =
isObject(authentication) &&
!isEmpty(authentication) &&
!isEmpty(authentication.username) &&
isString(authentication.username) &&
!isEmpty(authentication.password) &&
isString(authentication.password) &&
!isEmpty(authentication.client_id) &&
isString(authentication.client_id) &&
!isEmpty(authentication.client_secret) &&
isString(authentication.client_secret);
/**
* validate authentication configuration option.
*/
if (!isUndefined(authentication) && !hasAuthentication) {
return error(
`invalid authentication option: ${JSON.stringify(
authentication
)}. must be object contains non empty username, password.`
);
}
/**
* @constant
* @type {boolean}
*/
const hasLanguages =
isArray(languages) && !isEmpty(languages) && every(languages, isString);
/**
* validate languages configuration option.
*/
if (!isUndefined(languages) && !hasLanguages) {
return error(
`invalid languages option: ${languages}. must be a string array.`
);
}
/**
* @constant
* @type {boolean}
*/
const hasTypes = isArray(types) && !isEmpty(types) && every(types, isString);
/**
* validate types configuration option.
*/
if (!isUndefined(types) && !hasTypes) {
return error(`invalid types option: ${types}. must be a string array.`);
}
/**
* @constant
* @type {function}
*/
const { createNode } = actions;
/**
* remove trailing slash.
* @constant
* @type {string}
*/
const siteUrl = `${baseUrl.replace(/\/$/, '')}/api/${serviceName}`;
const authenticationRequest = () => {
return axios.post(
`${baseUrl}/Sitefinity/Authenticate/OpenID/connect/token`,
querystring.stringify({
username: authentication.username,
password: authentication.password,
grant_type: 'password',
scope: 'openid',
client_id: authentication.client_id,
client_secret: authentication.client_secret,
})
);
};
const dataRequests = () => {
/**
* get list of content types.
* @type {Promise}
*/
return axios({
url: siteUrl,
})
.then(
/**
* create and fire count request for each content type.
* @function
* @param {object} response
* @returns {Promise}
*/
(response) => {
const toBeQueriedTypes = hasTypes
? response.data.value.filter((item) => {
return types.indexOf(item.name) !== -1;
})
: response.data.value;
return axios.all(
toBeQueriedTypes
.reduce((requests, { name, url }) => {
if (hasLanguages) {
return requests.concat(
languages.map((language) => ({
_language: language,
_type: name,
url: `${siteUrl}/${url}/$count?sf_culture=${language}`,
}))
);
}
return [
...requests,
{
_type: name,
url: `${siteUrl}/${url}/$count`,
},
];
}, [])
.map(axios)
);
}
)
.then(
/**
* create and fire request for each content type.
* @function
* @param {object} response
* @returns {Promise}
*/
(response) =>
axios.all(
response
.reduce(
/**
* @function
* @param {object[]} requests
* @param {object} obj
* @param {string} obj.name
* @param {string} obj.url
* @returns {object[]}
*/
(requests, { config, data }) => {
// calculate number of requests based on total count, page size for each language if provided
let skip = 0;
const top = pageSize;
const totalCount = data;
const totalRequestsCount = pagination ? Math.ceil(totalCount / top) : 1;
if (hasLanguages) {
return requests.concat(
...[...Array(totalRequestsCount)].map((_, i) => {
const url = pagination ? `${siteUrl}/${config._type}?$skip=${skip}&$top=${top}&$expand=*&sf_culture=${config._language}` :
`${siteUrl}/${config._type}?$expand=*&sf_culture=${config._language}`;
const currentPageRequest = {
_language: config._language,
_type: config._type,
url: url,
};
skip += pageSize;
return currentPageRequest;
})
);
}
return [
...[...Array(totalRequestsCount)].map((_, i) => {
const url = pagination ? `${siteUrl}/${config._type}?$skip=${skip}&$top=${top}&$expand=*` :
`${siteUrl}/${config._type}?$expand=*`;
const currentPageRequest = {
_type: config._type,
url: url,
};
skip += pageSize;
return currentPageRequest;
}),
];
},
[]
)
.map(axios)
)
)
.then(
/**
* parse responses and create gatsby nodes for all content items.
* @function
* @param {object[]} responses
*/
(responses) => {
responses
.reduce(
/**
* create array of all content items.
* @function
* @param {object[]} arr
* @param {object} response
* @param {object} response.config
* @param {object} response.data
* @returns {object[]}
*/
(arr, { config, data }) =>
arr.concat(
data.value.map(
/**
* add getsby node properties.
* @function
* @param {object} obj
* @returns {object}
*/
(obj) => {
/**
* @constant
* @type {object}
*/
const node = {
...obj,
children: [],
id: createNodeId(
`sitefinity-${obj.Id}-${config._language}`
),
internal: {
content: JSON.stringify(obj),
contentDigest: crypto
.createHash('md5')
.update(JSON.stringify(obj))
.digest('hex'),
// prepend to avoid naming collisions with other source plugins
type: `Sitefinity${upperFirst(
camelCase(config._type)
)}`,
},
parent: null,
};
if (hasLanguages) {
return {
...node,
language: config._language,
};
}
return node;
}
)
),
[]
)
.forEach(
/**
* create gatsby node for each content item.
* @function
* @param {object} obj
*/
(obj) => {
createNode(obj);
}
);
}
)
.then(
/**
* @function
*/
() => {
success('create sitefinity content nodes');
cb();
}
)
.catch(
/**
* @function
*/
(ex) => {
if (ex.response && ex.response.status === 401) {
error(
`cannot get content from sitefinity. ${ex.message} , please provide correct username and password`
);
} else {
const path = ex.request && ex.request.path ? ex.request.path : 'path unavailable';
error(
`cannot get content from sitefinity. ${(ex.message,
path)}`
);
throw ex;
}
}
);
};
if (hasAuthentication) {
authenticationRequest()
.then((response) => {
axios.defaults.headers.common[
'Authorization'
] = `${response.data.token_type} ${response.data.access_token}`;
dataRequests();
})
.catch(
/**
* @function
*/
(ex) => {
const path = ex.request && ex.request.path ? ex.request.path : 'path unavailable';
error(`cannot get content from sitefinity. ${ex.message, path, ex.stack}`);
}
);
} else {
dataRequests();
}
};