mailgun / mailgun-php

     * @param array|string $body           Request body

     * @param array        $requestHeaders Request headers

     */

    protected function httpPostRaw(string $path, $body, array $requestHeaders = []): ResponseInterface

    {

        try {

            $response = $this->httpClient->sendRequest(

                $this->requestBuilder->create('POST', $path, $requestHeaders, $body)

            );

        } catch (Psr18\NetworkExceptionInterface $e) {

            throw HttpServerException::networkError($e);

        }

        return $response;

    }

    /**

     * Send a PUT request.

     * @param array  $parameters     PUT parameters

     * @param array  $requestHeaders Request headers

     */

    protected function httpPut(string $path, array $parameters = [], array $requestHeaders = []): ResponseInterface

    {

        try {

            $response = $this->httpClient->sendRequest(

                $this->requestBuilder->create('PUT', $path, $requestHeaders, $this->createRequestBody($parameters))

            );

        } catch (Psr18\NetworkExceptionInterface $e) {

            throw HttpServerException::networkError($e);

        }

        return $response;

    }

    /**

     * Send a DELETE request.

     * @param array  $parameters     DELETE parameters

     * @param array  $requestHeaders Request headers

     */

    protected function httpDelete(string $path, array $parameters = [], array $requestHeaders = []): ResponseInterface

    {

        try {

            $response = $this->httpClient->sendRequest(

                $this->requestBuilder->create('DELETE', $path, $requestHeaders, $this->createRequestBody($parameters))

            );

        } catch (Psr18\NetworkExceptionInterface $e) {

            throw HttpServerException::networkError($e);

        }

        return $response;

    }

    /**

     * Prepare a set of key-value-pairs to be encoded as multipart/form-data.