Method request

packages/graphql-hooks/src/GraphQLClient.ts:267–306

(
    operation: Operation<TVariables>,
    options?: RequestOptions
  )

  }

  request<ResponseData, TGraphQLError = object, TVariables = object>(
    operation: Operation<TVariables>,
    options?: RequestOptions
  ): Promise<Result<ResponseData, TGraphQLError>> {
    const responseHandlers: (() => any)[] = []
    const addResponseHook = handler => responseHandlers.push(handler)

    return new Promise((resolve, reject) =>
      this.middleware.run(
        { operation, client: this, addResponseHook, resolve, reject },
        ({ operation: updatedOperation }) => {
          const transformResponse = res => {
            if (responseHandlers.length > 0) {
              // Pipe for promises
              return pipeP(responseHandlers)(res)
            }
            return res
          }

          if (this.fullWsTransport) {
            return this.requestViaWS(updatedOperation)
              .then(transformResponse)
              .then(resolve)
              .catch(reject)
          }

          if (this.url) {
            return this.requestViaHttp<ResponseData, TGraphQLError, TVariables>(
              updatedOperation,
              options
            )
              .then(transformResponse)
              .then(resolve)
              .catch(reject)
          }
          reject(new Error('GraphQLClient: config.url is required'))
        }
      )
    )
  }

  requestViaHttp<ResponseData, TGraphQLError = object, TVariables = object>(
    operation: Operation<TVariables>,