HTTP adapter provides an HTTP API for sending messages through the platform.
The service is configured using the environment variables presented in the following table. Note that any unset variables will be replaced with their default values.
|MF_HTTP_ADAPTER_LOG_LEVEL||Log level for the HTTP Adapter||error|
|MF_HTTP_ADAPTER_PORT||Service HTTP port||8180|
|MF_NATS_URL||NATS instance URL||nats://localhost:4222|
|MF_THINGS_URL||Things service URL||localhost:8181|
|MF_HTTP_ADAPTER_CLIENT_TLS||Flag that indicates if TLS should be turned on||false|
|MF_HTTP_ADAPTER_CA_CERTS||Path to trusted CAs in PEM format|
The service is distributed as Docker container. The following snippet provides a compose file template that can be used to deploy the service container locally:
version: "2" services: adapter: image: mainflux/http:[version] container_name: [instance name] ports: - [host machine port]:8180 environment: MF_THINGS_URL: [Things service URL] MF_NATS_URL: [NATS instance URL] MF_HTTP_ADAPTER_LOG_LEVEL: [HTTP Adapter Log Level] MF_HTTP_ADAPTER_PORT: [Service HTTP port] MF_HTTP_ADAPTER_CA_CERTS: [Path to trusted CAs in PEM format]
To start the service outside of the container, execute the following shell script:
# download the latest version of the service go get github.com/mainflux/mainflux cd $GOPATH/src/github.com/mainflux/mainflux # compile the http make http # copy binary to bin make install # set the environment variables and run the service MF_THINGS_URL=[Things service URL] MF_NATS_URL=[NATS instance URL] MF_HTTP_ADAPTER_LOG_LEVEL=[HTTP Adapter Log Level] MF_HTTP_ADAPTER_PORT=[Service HTTP port] MF_HTTP_ADAPTER_CA_CERTS=[Path to trusted CAs in PEM format] $GOBIN/mainflux-http
MF_HTTP_ADAPTER_CA_CERTS expects a file in PEM format of trusted CAs. This will enable TLS against the Things gRPC endpoint trusting only those CAs that are provided.
For more information about service capabilities and its usage, please check out the API documentation.