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types.ts
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/
types.ts
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import { DocumentNode } from 'graphql/language/ast'
export type Variables = { [key: string]: any }
export interface GraphQLError {
message: string
locations: { line: number; column: number }[]
path: string[]
}
export interface GraphQLResponse<T = any> {
data?: T
errors?: GraphQLError[]
extensions?: any
status: number
[key: string]: any
}
export interface GraphQLRequestContext<V = Variables> {
query: string
variables?: V
}
export class ClientError extends Error {
response: GraphQLResponse
request: GraphQLRequestContext
constructor(response: GraphQLResponse, request: GraphQLRequestContext) {
const message = `${ClientError.extractMessage(response)}: ${JSON.stringify({
response,
request,
})}`
super(message)
Object.setPrototypeOf(this, ClientError.prototype)
this.response = response
this.request = request
// this is needed as Safari doesn't support .captureStackTrace
if (typeof Error.captureStackTrace === 'function') {
Error.captureStackTrace(this, ClientError)
}
}
private static extractMessage(response: GraphQLResponse): string {
try {
return response.errors![0].message
} catch (e) {
return `GraphQL Error (Code: ${response.status})`
}
}
}
export type RequestDocument = string | DocumentNode