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index.js
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import { utils } from 'js-data'
import axios from '../node_modules/axios/dist/axios'
import {
Adapter,
noop,
noop2
} from '../node_modules/js-data-adapter/src/index'
let hasFetch = false
try {
hasFetch = window && window.fetch
} catch (e) {}
function isValidString (value) {
return (value != null && value !== '')
}
function join (items, separator) {
separator || (separator = '')
return items.filter(isValidString).join(separator)
}
function makePath (...args) {
let result = join(args, '/')
return result.replace(/([^:/]|^)\/{2,}/g, '$1/')
}
function encode (val) {
return encodeURIComponent(val)
.replace(/%40/gi, '@')
.replace(/%3A/gi, ':')
.replace(/%24/g, '$')
.replace(/%2C/gi, ',')
.replace(/%20/g, '+')
.replace(/%5B/gi, '[')
.replace(/%5D/gi, ']')
}
function buildUrl (url, params) {
if (!params) {
return url
}
const parts = []
utils.forOwn(params, function (val, key) {
if (val === null || typeof val === 'undefined') {
return
}
if (!utils.isArray(val)) {
val = [val]
}
val.forEach(function (v) {
if (toString.call(v) === '[object Date]') {
v = v.toISOString()
} else if (utils.isObject(v)) {
v = utils.toJson(v)
}
parts.push(`${encode(key)}=${encode(v)}`)
})
})
if (parts.length > 0) {
url += (url.indexOf('?') === -1 ? '?' : '&') + parts.join('&')
}
return url
}
const DEFAULTS = {
/**
* Set a base path in order to use absolute URLs instead of relative URLs.
*
* @example
* const httpAdapter = new HttpAdapter({
* basePath: 'https://mydomain.com'
* });
*
* @name HttpAdapter#basePath
* @type {string}
* @since 3.0.0
*/
basePath: '',
/**
* Ensure that the request url has a trailing forward slash.
*
* @name HttpAdapter#forceTrailingSlash
* @type {boolean}
* @default false
* @since 3.0.0
*/
forceTrailingSlash: false,
hasFetch: hasFetch,
/**
* The HTTP function that actually makes the HTTP request. By default this is
* `axios`.
*
* @name HttpAdapter#http
* @type {function}
* @since 3.0.0
* @see http://www.js-data.io/docs/js-data-http#using-a-custom-http-library
*/
http: axios,
/**
* Default configuration options to be mixed into the `config` argument passed
* to {@link HttpAdapter#http}.
*
* @name HttpAdapter#httpConfig
* @type {object}
* @since 3.0.0
*/
httpConfig: {},
/**
* Add a suffix to the request url, e.g. ".json".
*
* @name HttpAdapter#suffix
* @type {string}
* @since 3.0.0
*/
suffix: '',
/**
* Use `window.fetch` if available.
*
* @name HttpAdapter#useFetch
* @type {boolean}
* @default false
* @since 3.0.0
* @see http://www.js-data.io/docs/js-data-http#using-windowfetch
*/
useFetch: false
}
/**
* HttpAdapter class.
*
* @example
* import { DataStore } from 'js-data';
* import { HttpAdapter } from 'js-data-http';
*
* const httpAdapter = new HttpAdapter();
* const store = new DataStore();
*
* store.registerAdapter('http', httpAdapter, { 'default': true });
*
* store.defineMapper('school');
* store.defineMapper('student');
*
* // GET /school/1
* store.find('school', 1).then((school) => {
* console.log('school');
* });
*
* @class HttpAdapter
* @extends Adapter
* @param {object} [opts] Configuration options.
* @param {string} [opts.basePath=''] See {@link HttpAdapter#basePath}.
* @param {boolean} [opts.debug=false] See {@link HttpAdapter#debug}.
* @param {boolean} [opts.forceTrailingSlash=false] See {@link HttpAdapter#forceTrailingSlash}.
* @param {object} [opts.http=axios] See {@link HttpAdapter#http}.
* @param {object} [opts.httpConfig={}] See {@link HttpAdapter#httpConfig}.
* @param {string} [opts.suffix=''] See {@link HttpAdapter#suffix}.
* @param {boolean} [opts.useFetch=false] See {@link HttpAdapter#useFetch}.
* @see http://www.js-data.io/docs/js-data-http
*/
export function HttpAdapter (opts) {
utils.classCallCheck(this, HttpAdapter)
opts || (opts = {})
// Fill in any missing options with the defaults
utils.fillIn(opts, DEFAULTS)
Adapter.call(this, opts)
}
/**
* @name module:js-data-http.HttpAdapter
* @see HttpAdapter
*/
Adapter.extend({
constructor: HttpAdapter,
/**
* @name HttpAdapter#afterDEL
* @method
* @param {string} url
* @param {object} config
* @param {object} opts
* @param {object} response
*/
afterDEL: noop2,
/**
* @name HttpAdapter#afterGET
* @method
* @param {string} url
* @param {object} config
* @param {object} opts
* @param {object} response
*/
afterGET: noop2,
/**
* @name HttpAdapter#afterHTTP
* @method
* @param {object} config
* @param {object} opts
* @param {object} response
*/
afterHTTP: noop2,
/**
* @name HttpAdapter#afterPOST
* @method
* @param {string} url
* @param {object} data
* @param {object} config
* @param {object} opts
* @param {object} response
*/
afterPOST: noop2,
/**
* @name HttpAdapter#afterPUT
* @method
* @param {string} url
* @param {object} data
* @param {object} config
* @param {object} opts
* @param {object} response
*/
afterPUT: noop2,
/**
* @name HttpAdapter#beforeDEL
* @method
* @param {object} url
* @param {object} config
* @param {object} opts
*/
beforeDEL: noop,
/**
* @name HttpAdapter#beforeGET
* @method
* @param {object} url
* @param {object} config
* @param {object} opts
*/
beforeGET: noop,
/**
* @name HttpAdapter#beforeHTTP
* @method
* @param {object} config
* @param {object} opts
*/
beforeHTTP: noop,
/**
* @name HttpAdapter#beforePOST
* @method
* @param {object} url
* @param {object} data
* @param {object} config
* @param {object} opts
*/
beforePOST: noop,
/**
* @name HttpAdapter#beforePUT
* @method
* @param {object} url
* @param {object} data
* @param {object} config
* @param {object} opts
*/
beforePUT: noop,
_count (mapper, query, opts) {
return this.GET(
this.getPath('count', mapper, opts.params, opts),
opts
).then((response) => this._end(mapper, opts, response))
},
_create (mapper, props, opts) {
return this.POST(
this.getPath('create', mapper, props, opts),
this.serialize(mapper, props, opts),
opts
).then((response) => this._end(mapper, opts, response))
},
_createMany (mapper, props, opts) {
return this.POST(
this.getPath('createMany', mapper, null, opts),
this.serialize(mapper, props, opts),
opts
).then((response) => this._end(mapper, opts, response))
},
_destroy (mapper, id, opts) {
return this.DEL(
this.getPath('destroy', mapper, id, opts),
opts
).then((response) => this._end(mapper, opts, response))
},
_destroyAll (mapper, query, opts) {
return this.DEL(
this.getPath('destroyAll', mapper, null, opts),
opts
).then((response) => this._end(mapper, opts, response))
},
_end (mapper, opts, response) {
return [this.deserialize(mapper, response, opts), response]
},
_find (mapper, id, opts) {
return this.GET(
this.getPath('find', mapper, id, opts),
opts
).then((response) => this._end(mapper, opts, response))
},
_findAll (mapper, query, opts) {
return this.GET(
this.getPath('findAll', mapper, opts.params, opts),
opts
).then((response) => this._end(mapper, opts, response))
},
_sum (mapper, field, query, opts) {
return this.GET(
this.getPath('sum', mapper, opts.params, opts),
opts
).then((response) => this._end(mapper, opts, response))
},
_update (mapper, id, props, opts) {
return this.PUT(
this.getPath('update', mapper, id, opts),
this.serialize(mapper, props, opts),
opts
).then((response) => this._end(mapper, opts, response))
},
_updateAll (mapper, props, query, opts) {
return this.PUT(
this.getPath('updateAll', mapper, null, opts),
this.serialize(mapper, props, opts),
opts
).then((response) => this._end(mapper, opts, response))
},
_updateMany (mapper, records, opts) {
return this.PUT(
this.getPath('updateMany', mapper, null, opts),
this.serialize(mapper, records, opts),
opts
).then((response) => this._end(mapper, opts, response))
},
/**
* Retrieve the number of records that match the selection `query`.
*
* @name HttpAdapter#count
* @method
* @param {object} mapper The mapper.
* @param {object} query Selection query.
* @param {object} [opts] Configuration options.
* @param {string} [opts.params] Querystring parameters.
* @param {string} [opts.suffix={@link HttpAdapter#suffix}] See {@link HttpAdapter#suffix}.
* @return {Promise}
*/
count (mapper, query, opts) {
query || (query = {})
opts || (opts = {})
opts.params = this.getParams(opts)
opts.params.count = true
opts.suffix = this.getSuffix(mapper, opts)
utils.deepMixIn(opts.params, query)
opts.params = this.queryTransform(mapper, opts.params, opts)
return Adapter.prototype.count.call(this, mapper, query, opts)
},
/**
* Create a new the record from the provided `props`.
*
* @name HttpAdapter#create
* @method
* @param {object} mapper The mapper.
* @param {object} props Properties to send as the payload.
* @param {object} [opts] Configuration options.
* @param {string} [opts.params] Querystring parameters.
* @param {string} [opts.suffix={@link HttpAdapter#suffix}] See {@link HttpAdapter#suffix}.
* @return {Promise}
*/
create (mapper, props, opts) {
opts || (opts = {})
opts.params = this.getParams(opts)
opts.params = this.queryTransform(mapper, opts.params, opts)
opts.suffix = this.getSuffix(mapper, opts)
return Adapter.prototype.create.call(this, mapper, props, opts)
},
/**
* Create multiple new records in batch.
*
* @name HttpAdapter#createMany
* @method
* @param {object} mapper The mapper.
* @param {array} props Array of property objects to send as the payload.
* @param {object} [opts] Configuration options.
* @param {string} [opts.params] Querystring parameters.
* @param {string} [opts.suffix={@link HttpAdapter#suffix}] See {@link HttpAdapter#suffix}.
* @return {Promise}
*/
createMany (mapper, props, opts) {
opts || (opts = {})
opts.params = this.getParams(opts)
opts.params = this.queryTransform(mapper, opts.params, opts)
opts.suffix = this.getSuffix(mapper, opts)
return Adapter.prototype.createMany.call(this, mapper, props, opts)
},
/**
* Make an Http request to `url` according to the configuration in `config`.
*
* @name HttpAdapter#DEL
* @method
* @param {string} url Url for the request.
* @param {object} [config] Http configuration that will be passed to
* {@link HttpAdapter#HTTP}.
* @param {object} [opts] Configuration options.
* @return {Promise}
*/
DEL (url, config, opts) {
let op
config || (config = {})
opts || (opts = {})
config.url = url || config.url
config.method = config.method || 'delete'
// beforeDEL lifecycle hook
op = opts.op = 'beforeDEL'
return utils.resolve(this[op](url, config, opts))
.then((_config) => {
// Allow re-assignment from lifecycle hook
config = _config === undefined ? config : _config
op = opts.op = 'DEL'
this.dbg(op, url, config, opts)
return this.HTTP(config, opts)
})
.then((response) => {
// afterDEL lifecycle hook
op = opts.op = 'afterDEL'
return utils.resolve(this[op](url, config, opts, response))
.then((_response) => _response === undefined ? response : _response)
})
},
/**
* Transform the server response object into the payload that will be returned
* to JSData.
*
* @name HttpAdapter#deserialize
* @method
* @param {object} mapper The mapper used for the operation.
* @param {object} response Response object from {@link HttpAdapter#HTTP}.
* @param {object} opts Configuration options.
* @return {(object|array)} Deserialized data.
*/
deserialize (mapper, response, opts) {
opts || (opts = {})
if (utils.isFunction(opts.deserialize)) {
return opts.deserialize(mapper, response, opts)
}
if (utils.isFunction(mapper.deserialize)) {
return mapper.deserialize(mapper, response, opts)
}
if (response && response.hasOwnProperty('data')) {
return response.data
}
return response
},
/**
* Destroy the record with the given primary key.
*
* @name HttpAdapter#destroy
* @method
* @param {object} mapper The mapper.
* @param {(string|number)} id Primary key of the record to destroy.
* @param {object} [opts] Configuration options.
* @param {string} [opts.params] Querystring parameters.
* @param {string} [opts.suffix={@link HttpAdapter#suffix}] See {@link HttpAdapter#suffix}.
* @return {Promise}
*/
destroy (mapper, id, opts) {
opts || (opts = {})
opts.params = this.getParams(opts)
opts.params = this.queryTransform(mapper, opts.params, opts)
opts.suffix = this.getSuffix(mapper, opts)
return Adapter.prototype.destroy.call(this, mapper, id, opts)
},
/**
* Destroy the records that match the selection `query`.
*
* @name HttpAdapter#destroyAll
* @method
* @param {object} mapper The mapper.
* @param {object} query Selection query.
* @param {object} [opts] Configuration options.
* @param {string} [opts.params] Querystring parameters.
* @param {string} [opts.suffix={@link HttpAdapter#suffix}] See {@link HttpAdapter#suffix}.
* @return {Promise}
*/
destroyAll (mapper, query, opts) {
query || (query = {})
opts || (opts = {})
opts.params = this.getParams(opts)
utils.deepMixIn(opts.params, query)
opts.params = this.queryTransform(mapper, opts.params, opts)
opts.suffix = this.getSuffix(mapper, opts)
return Adapter.prototype.destroyAll.call(this, mapper, query, opts)
},
/**
* Log an error.
*
* @name HttpAdapter#error
* @method
* @param {...*} [args] Arguments to log.
*/
error (...args) {
if (console) {
console[typeof console.error === 'function' ? 'error' : 'log'](...args)
}
},
/**
* Make an Http request using `window.fetch`.
*
* @name HttpAdapter#fetch
* @method
* @param {object} config Request configuration.
* @param {object} config.data Payload for the request.
* @param {string} config.method Http method for the request.
* @param {object} config.headers Headers for the request.
* @param {object} config.params Querystring for the request.
* @param {string} config.url Url for the request.
*/
fetch (config) {
const requestConfig = {
method: config.method,
// turn the plain headers object into the Fetch Headers object
headers: new Headers(config.headers || {})
}
if (config.data) {
requestConfig.body = utils.toJson(config.data)
}
return fetch(buildUrl(config.url, config.params), requestConfig)
.then((response) => {
response.config = {
method: config.method,
url: config.url
}
return response.json()
.then((data) => {
response.data = data
return response
})
})
},
/**
* Retrieve the record with the given primary key.
*
* @name HttpAdapter#find
* @method
* @param {object} mapper The mapper.
* @param {(string|number)} id Primary key of the record to retrieve.
* @param {object} [opts] Configuration options.
* @param {string} [opts.params] Querystring parameters.
* @param {string} [opts.suffix={@link HttpAdapter#suffix}] See {@link HttpAdapter#suffix}.
* @return {Promise}
*/
find (mapper, id, opts) {
opts || (opts = {})
opts.params = this.getParams(opts)
opts.params = this.queryTransform(mapper, opts.params, opts)
opts.suffix = this.getSuffix(mapper, opts)
return Adapter.prototype.find.call(this, mapper, id, opts)
},
/**
* Retrieve the records that match the selection `query`.
*
* @name HttpAdapter#findAll
* @method
* @param {object} mapper The mapper.
* @param {object} query Selection query.
* @param {object} [opts] Configuration options.
* @param {string} [opts.params] Querystring parameters.
* @param {string} [opts.suffix={@link HttpAdapter#suffix}] See {@link HttpAdapter#suffix}.
* @return {Promise}
*/
findAll (mapper, query, opts) {
query || (query = {})
opts || (opts = {})
opts.params = this.getParams(opts)
opts.suffix = this.getSuffix(mapper, opts)
utils.deepMixIn(opts.params, query)
opts.params = this.queryTransform(mapper, opts.params, opts)
return Adapter.prototype.findAll.call(this, mapper, query, opts)
},
/**
* Make a GET request.
*
* @name HttpAdapter#GET
* @method
* @param {string} url The url for the request.
* @param {object} config Request configuration options.
* @param {object} [opts] Configuration options.
* @return {Promise}
*/
GET (url, config, opts) {
let op
config || (config = {})
opts || (opts = {})
config.url = url || config.url
config.method = config.method || 'get'
// beforeGET lifecycle hook
op = opts.op = 'beforeGET'
return utils.resolve(this[op](url, config, opts))
.then((_config) => {
// Allow re-assignment from lifecycle hook
config = _config === undefined ? config : _config
op = opts.op = 'GET'
this.dbg(op, url, config, opts)
return this.HTTP(config, opts)
})
.then((response) => {
// afterGET lifecycle hook
op = opts.op = 'afterGET'
return utils.resolve(this[op](url, config, opts, response))
.then((_response) => _response === undefined ? response : _response)
})
},
/**
* @name HttpAdapter#getEndpoint
* @method
* @param {object} mapper The Mapper.
* @param {*} id The primary key, if any.
* @param {boolean} opts Configuration options.
* @return {string} Full path.
*/
getEndpoint (mapper, id, opts) {
opts || (opts = {})
opts.params = utils.isUndefined(opts.params) ? {} : opts.params
const relationList = mapper.relationList || []
let endpoint = utils.isUndefined(opts.endpoint) ? (utils.isUndefined(mapper.endpoint) ? mapper.name : mapper.endpoint) : opts.endpoint
relationList.forEach((def) => {
if (def.type !== 'belongsTo' || !def.parent) {
return
}
let item
const parentKey = def.foreignKey
const parentDef = def.getRelation()
let parentId = opts.params[parentKey]
if (parentId === false || !parentKey || !parentDef) {
if (parentId === false) {
delete opts.params[parentKey]
}
return false
} else {
delete opts.params[parentKey]
if (utils.isObject(id)) {
item = id
}
if (item) {
parentId = parentId || def.getForeignKey(item) || (def.getLocalField(item) ? utils.get(def.getLocalField(item), parentDef.idAttribute) : null)
}
if (parentId) {
delete opts.endpoint
const _opts = {}
utils.forOwn(opts, (value, key) => {
_opts[key] = value
})
utils._(_opts, parentDef)
endpoint = makePath(this.getEndpoint(parentDef, parentId, _opts), parentId, endpoint)
return false
}
}
})
return endpoint
},
/**
* @name HttpAdapter#getPath
* @method
* @param {string} method The method being executed.
* @param {object} mapper The Mapper.
* @param {(string|number)?} id The primary key, if any.
* @param {object} opts Configuration options.
*/
getPath (method, mapper, id, opts) {
opts || (opts = {})
const args = [
opts.basePath === undefined ? (mapper.basePath === undefined ? this.basePath : mapper.basePath) : opts.basePath,
this.getEndpoint(mapper, (utils.isString(id) || utils.isNumber(id) || method === 'create') ? id : null, opts)
]
if (method === 'find' || method === 'update' || method === 'destroy') {
args.push(id)
}
return makePath.apply(utils, args)
},
getParams (opts) {
opts || (opts = {})
if (opts.params === undefined) {
return {}
}
return utils.copy(opts.params)
},
getSuffix (mapper, opts) {
opts || (opts = {})
if (opts.suffix === undefined) {
if (mapper.suffix === undefined) {
return this.suffix
}
return mapper.suffix
}
return opts.suffix
},
/**
* Make an Http request.
*
* @name HttpAdapter#HTTP
* @method
* @param {object} config Request configuration options.
* @param {object} [opts] Configuration options.
* @return {Promise}
*/
HTTP (config, opts) {
const start = new Date()
opts || (opts = {})
const payload = config.data
const cache = config.cache
const timeout = config.timeout
const params = config.params
config = utils.copy(config, null, null, null, ['data', 'cache', 'timeout', 'params']) // params could have data, cache, timeout
config.params = utils.copy(params)
config = utils.deepMixIn(config, this.httpConfig)
config.data = payload
config.cache = cache
if (timeout !== undefined) {
config.timeout = timeout
}
if (this.forceTrailingSlash && config.url[config.url.length - 1] !== '/') {
config.url += '/'
}
config.method = config.method.toUpperCase()
const suffix = config.suffix || opts.suffix || this.suffix
if (suffix && config.url.substr(config.url.length - suffix.length) !== suffix) {
config.url += suffix
}
const logResponse = (data) => {
const str = `${start.toUTCString()} - ${config.method.toUpperCase()} ${config.url} - ${data.status} ${(new Date().getTime() - start.getTime())}ms`
if (data.status >= 200 && data.status < 300) {
if (this.log) {
this.dbg(str, data)
}
return data
} else {
if (this.error) {
this.error(`'FAILED: ${str}`, data)
}
return utils.reject(data)
}
}
if (!this.http) {
if ((this.useFetch || opts.useFetch)) {
if (!hasFetch) {
throw new Error('Attempting to use window.fetch, but it is not available!')
}
} else {
throw new Error('You have not configured this adapter with an http library!')
}
}
return utils.resolve(this.beforeHTTP(config, opts))
.then((_config) => {
config = _config || config
if (hasFetch && (this.useFetch || opts.useFetch || !this.http)) {
return this.fetch(config, opts).then(logResponse, logResponse)
}
const httpConfig = utils.plainCopy(config)
delete httpConfig.adapter
return this.http(httpConfig).then(logResponse, logResponse)
.catch((err) => this.responseError(err, config, opts))
})
.then((response) => {
return utils.resolve(this.afterHTTP(config, opts, response))
.then((_response) => _response === undefined ? response : _response)
})
},
/**
* Make a POST request.
*
* @name HttpAdapter#POST
* @method
* @param {*} url The url for the request.
* @param {object} data Payload for the request.
* @param {object} config Request configuration options.
* @param {object} [opts] Configuration options.
* @return {Promise}
*/
POST (url, data, config, opts) {
let op
config || (config = {})
opts || (opts = {})
config.url = url || config.url
config.data = data || config.data
config.method = config.method || 'post'
// beforePOST lifecycle hook
op = opts.op = 'beforePOST'
return utils.resolve(this[op](url, data, config, opts))
.then((_config) => {
// Allow re-assignment from lifecycle hook
config = _config === undefined ? config : _config
op = opts.op = 'POST'
this.dbg(op, url, data, config, opts)
return this.HTTP(config, opts)
})
.then((response) => {
// afterPOST lifecycle hook
op = opts.op = 'afterPOST'
return utils.resolve(this[op](url, data, config, opts, response))
.then((_response) => _response === undefined ? response : _response)
})
},
/**
* Make a PUT request.
*
* @name HttpAdapter#PUT
* @method
* @param {*} url The url for the request.
* @param {object} data Payload for the request.
* @param {object} config Request configuration options.
* @param {object} [opts] Configuration options.
* @return {Promise}
*/
PUT (url, data, config, opts) {
let op
config || (config = {})
opts || (opts = {})
config.url = url || config.url
config.data = data || config.data
config.method = config.method || 'put'
// beforePUT lifecycle hook
op = opts.op = 'beforePUT'
return utils.resolve(this[op](url, data, config, opts))
.then((_config) => {
// Allow re-assignment from lifecycle hook
config = _config === undefined ? config : _config
op = opts.op = 'PUT'
this.dbg(op, url, data, config, opts)
return this.HTTP(config, opts)
})
.then((response) => {
// afterPUT lifecycle hook
op = opts.op = 'afterPUT'
return utils.resolve(this[op](url, data, config, opts, response))
.then((_response) => _response === undefined ? response : _response)
})
},
/**
* Transform the querystring object before it is serialized. This doesn't do
* anything by default.
*
* @name HttpAdapter#queryTransform
* @method
* @param {object} mapper The Mapper that triggered the request.
* @param {*} params The querystring object.
* @param {*} opts Configuration options
* @return {*} Transformed params.
*/
queryTransform (mapper, params, opts) {
opts || (opts = {})
if (utils.isFunction(opts.queryTransform)) {
return opts.queryTransform(mapper, params, opts)
}
if (utils.isFunction(mapper.queryTransform)) {
return mapper.queryTransform(mapper, params, opts)
}
return params
},
/**
* Error handler invoked when the promise returned by {@link HttpAdapter#http}
* is rejected. Default implementation is to just return the error wrapped in
* a rejected Promise, aka rethrow the error. {@link HttpAdapter#http} is
* called by {@link HttpAdapter#HTTP}.
*
* @name HttpAdapter#responseError
* @method
* @param {*} err The error that {@link HttpAdapter#http} rejected with.
* @param {object} config The `config` argument that was passed to {@link HttpAdapter#HTTP}.
* @param {*} opts The `opts` argument that was passed to {@link HttpAdapter#HTTP}.
* @return {Promise}
*/
responseError (err, config, opts) {
return utils.reject(err)
},
/**
* Serialize request data. This doesn't do anything by default.
*
* @name HttpAdapter#serialize
* @method
* @param {object} mapper The Mapper that triggered the request.
* @param {object} data The request payload.
* @param {*} opts Configuration options.
* @return {*} Serialized data.
*/
serialize (mapper, data, opts) {
opts || (opts = {})
if (utils.isFunction(opts.serialize)) {
return opts.serialize(mapper, data, opts)
}
if (utils.isFunction(mapper.serialize)) {
return mapper.serialize(mapper, data, opts)
}
return data
},
/**
* Retrieve the sum of the field of the records that match the selection query.
*
* @name HttpAdapter#sum
* @method
* @param {object} mapper The mapper.
* @param {string} field The field to sum.
* @param {object} query Selection query.
* @param {object} [opts] Configuration options.
* @param {string} [opts.params] Querystring parameters.
* @param {string} [opts.suffix={@link HttpAdapter#suffix}] See {@link HttpAdapter#suffix}.
* @return {Promise}
*/
sum (mapper, field, query, opts) {
query || (query = {})
opts || (opts = {})
if (!utils.isString(field)) {
throw new Error('field must be a string!')
}
opts.params = this.getParams(opts)
opts.params.sum = field
opts.suffix = this.getSuffix(mapper, opts)
utils.deepMixIn(opts.params, query)
opts.params = this.queryTransform(mapper, opts.params, opts)
return Adapter.prototype.sum.call(this, mapper, field, query, opts)
},
/**
* Perform an update. Makes a PUT request by default.
*
* @name HttpAdapter#update
* @method
* @param {object} mapper The Mapper for the request.
* @param {*} id The primary key of the record being updated.