chris48sandGitHub
75ee413178
* add base class for Graphql APIs * add GithubAuthV4Service + updates to GH token pool * update github forks to use GithubAuthV4Service * rename GithubAuthService to GithubAuthV3Service
53 lines
1.4 KiB
JavaScript
53 lines
1.4 KiB
JavaScript
'use strict'
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const { print } = require('graphql/language/printer')
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const BaseService = require('./base')
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const { InvalidResponse, ShieldsRuntimeError } = require('./errors')
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const { parseJson } = require('./json')
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function defaultTransformErrors(errors) {
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return new InvalidResponse({ prettyMessage: errors[0].message })
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}
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class BaseGraphqlService extends BaseService {
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_parseJson(buffer) {
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return parseJson(buffer)
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}
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async _requestGraphql({
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schema,
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url,
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query,
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variables = {},
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options = {},
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httpErrorMessages = {},
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transformErrors = defaultTransformErrors,
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}) {
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const mergedOptions = {
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...{ headers: { Accept: 'application/json' } },
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...options,
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}
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mergedOptions.method = 'POST'
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mergedOptions.body = JSON.stringify({ query: print(query), variables })
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const { buffer } = await this._request({
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url,
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options: mergedOptions,
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errorMessages: httpErrorMessages,
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})
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const json = this._parseJson(buffer)
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if (json.errors) {
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const exception = transformErrors(json.errors)
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if (exception instanceof ShieldsRuntimeError) {
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throw exception
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} else {
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throw Error(
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`transformErrors() must return a ShieldsRuntimeError; got ${exception}`
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)
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}
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}
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return this.constructor._validate(json, schema)
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}
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}
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module.exports = BaseGraphqlService
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