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* Commit for mainflux-596 Modified and tested: - cli - http - mqtt - normalizer - all readers - sdk messages - all writers - ws Missing: - coap - lora Signed-off-by: ale <ale@metaverso.org> * - fix subtopic name in, when starting with dot, http/ws/mqtt - add some test on readers Signed-off-by: ale <ale@metaverso.org> * - fix string concatenation - update http/transport regexp to match subtopic names with only \w- - update ws/transport regexp like http ones with also the wildcard * and > Signed-off-by: ale <ale@metaverso.org> * added subtopic support to coap adapter Signed-off-by: ale <ale@metaverso.org> * - update replace functions with replaceall when needed - renamed getDestChannel to fmtSubject - update api/transport and ws/transport route to be more readable - fix mqtt syntax - renamed func andQuery to query as suggested by @anovakovic01 - have a nice we :) Signed-off-by: ale <ale@metaverso.org> * - fix error declaration on ws/nat/publisher - fix regexp added missing allowed chars - and _ on coap/api/transport - fix subtopic clean suffix / if present on coap/api/transport - improve regexp on http and ws /api/transport, now does not accept url that do not strictly match - add some ws subtopic tests Signed-off-by: ale <ale@metaverso.org> * - enabled wildcard chars on coap/api/transport - allow use special chars on http and ws api/transport Signed-off-by: ale <ale@metaverso.org> * - use strings.Replace() insted ReplaceAll() Signed-off-by: ale <ale@metaverso.org> * - allow every chars on subtopics - fix replace error on mqtt Signed-off-by: ale <ale@metaverso.org> * fix cassandra test Signed-off-by: ale <ale@metaverso.org> * fix ws test with invalid subtopic Signed-off-by: ale <ale@metaverso.org> * fix invalid GOCACHE in go1.12, replaced by -count 1, see https://golang.org/doc/go1.10#test Signed-off-by: ale <ale@metaverso.org> * - improve regexp on http/ws api/transport - minor changes Signed-off-by: ale <ale@metaverso.org> * - add generic function parseSubtopic on ws/http adapters Signed-off-by: ale <ale@metaverso.org> * - add generic function fmtSubtopic on coap adapter Signed-off-by: ale <ale@metaverso.org>
HTTP adapter
HTTP adapter provides an HTTP API for sending messages through the platform.
Configuration
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.
| Variable | Description | Default |
|---|---|---|
| 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 |
Deployment
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
Setting 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.
Usage
For more information about service capabilities and its usage, please check out the API documentation.