Standalone Pact Stub Server
This project provides a server that can generate responses based on pact files. It is a single executable binary. It implements the V3 Pact specification.
The stub server works by taking all the interactions (requests and responses) from a number of pact files. For each interaction, it will compare any incoming request against those defined in the pact files. If there is a match (based on method, path and query parameters), it will return the response from the pact file.
Note: The stub server was designed to supporting prototyping of mobile applications by stubbing out the backend servers. It will always try to return a response, even when there is not an extract match with the pact files.
Command line interface
The pact stub server is bundled as a single binary executable pact-stub-server
. Running this without any options displays the standard help.
pact-stub-server v0.4.4
Pact Stub Server
USAGE:
pact-stub-server [FLAGS] [OPTIONS] --broker-url <broker-url> --dir <dir>... --file <file>... --url <url>...
FLAGS:
-o, --cors Automatically respond to OPTIONS requests and return default CORS headers
--cors-referer Set the CORS Access-Control-Allow-Origin header to the Referer
--empty-provider-state Include empty provider states when filtering with --provider-state
-h, --help Prints help information
--insecure-tls Disables TLS certificate validation
-v, --version Prints version information
OPTIONS:
-b, --broker-url <broker-url>
URL of the pact broker to fetch pacts from [env: PACT_BROKER_BASE_URL=]
-d, --dir <dir>... Directory of pact files to load (can be repeated)
-e, --extension <ext>
File extension to use when loading from a directory (default is json)
-f, --file <file>... Pact file to load (can be repeated)
-l, --loglevel <loglevel>
Log level (defaults to info) [possible values: error, warn, info, debug,
trace, none]
-p, --port <port>
Port to run on (defaults to random port assigned by the OS)
-s, --provider-state <provider-state>
Provider state regular expression to filter the responses by
--provider-state-header-name <provider-state-header-name>
Name of the header parameter containing the provider state to be used in case multiple matching interactions
are found
-t, --token <token>
Bearer token to use when fetching pacts from URLS or Pact Broker
-u, --url <url>... URL of pact file to fetch (can be repeated)
--user <user>
User and password to use when fetching pacts from URLS or Pact Broker in user:password form
Options
Log Level
You can control the log level with the -l, --loglevel <loglevel>
option. It defaults to info, and the options that you can specify are: error, warn, info, debug, trace, none.
CORS pre-flight requests
If you specify the -o, --cors
option, then any un-matched OPTION request will result in a default 200 response. By default the
Access-Control-Allow-Origin header will be set to *
. If you provide the --cors-referer
flag, then it will be set to the
value of the Referer header from the request.
Pact File Sources
You can specify the pacts to verify with the following options. They can be repeated to set multiple sources.
Option | Type | Description |
---|---|---|
-f, --file <file> |
File | Loads a pact from the given file |
-u, --url <url> |
URL | Loads a pact from a URL resource |
-d, --dir <dir> |
Directory | Loads all the pacts from the given directory |
-b, --broker-url <url> |
URL | Loads all the latest pacts from the Pact Broker |
Note: For URLs and Pact Brokers that are authenticated, you can use the --user
option to set the username and password or the
--token
to use a bearer token.
Disabling TLS certificate validation
If you need to load pact files from a HTTPS URL that is using a self-signed certificate, you can use the --insecure-tls
flag to disable the TLS certificate validation. WARNING: this disables all certificate validations, including expired
certificates.
Filtering interactions by provider state
You can filter the interactions by provider state by supplying the --provider-state
option. This takes a regular
expression that is applied to all interactions before the requests are matched.
Server Options
The running server can be controlled with the following options:
Option | Description |
---|---|
-p, --port <port> |
The port to bind to. If not specified, a random port will be allocated by the operating system. |
Running with docker
A docker image is published to pactfoundation/pact-stub-server
.
Example of using it:
# Create a Stub API
docker pull pactfoundation/pact-stub-server
docker run -t -p 8080:8080 -v "$(pwd)/pacts/:/app/pacts" pactfoundation/pact-stub-server -p 8080 -d pacts
# Test your stub endpoints
curl -v $(docker-machine ip $(docker-machine active)):8080/bazbat
curl -v $(docker-machine ip $(docker-machine active)):8080/foobar