Add tests covering typical replication scenarios that happen
in the setup where multiple clients are synchronizing changes
against a single server (database).
Rework the Change model to merge changes made within the same
Checkpoint.
Rework `replicate()` to run multiple iteration until there were no
changes replicated. This ensures that the target model is left in
a clean state with no pending changes associated with the latest
(current) checkpoint.
Extend `PersistedModel.replicate` to pass the newly created checkpoints
as the third callback argument.
The typical usage of these values is to pass them as the `since`
argument of the next `replicate()` call.
global.since = -1;
function sync(cb) {
LocalModel.replicate(
since,
RemoteModel,
function(err, conflicts, cps)
if (err) return cb(err);
if (!conflicts.length) {
since = cps;
return cb();
}
// resolve conflicts and try again
});
}
Rework the "replicate()" to create a new source checkpoint as the first
step, so that any changes made in parallel will be associated with
the next checkpoint.
Before this commit, there was a race condition where a change might
end up being associated with the already-replicated checkpoint and thus
not picked up by the next replication run.
Modify `PersistedModel.replicate` to allow consumers to provide
different "since" values to be used for the local and remote changes.
Make the "since" filters consistent and include the "since" value
in the range via `gte`. Before this commit, the local query used
`gt` and the remote query used `gte`.
Setting legacyExplorer to false in the loopback config will disable
the routes /routes and /models made available in loopback.rest.
The deprecate module has been added to the project with a reference
added for the legacyExplorer option as it is no longer required by
loopback-explorer. Tests added to validate functionality of disabled
and enabled legacy explorer routes.
Fix all test models that are tracking changes so that they have
a generated unique string id.
Make model names unique where possible to prevent tests reusing
the same model which causes unintented side effects.
Make the "redirect" parameter optional. When the parameter is not
specified, the server responds with an empty response (204). This allows
API clients to call the method without the need to handle redirects
and HTML responses.
Even when the "redirect" parameter is included, the builtin afterRemote
hook still calls next(), so that user-provided afterRemote hooks
are executed too.
Add unit-tests to verify that all DAO methods correctly create change
records.
Rework the change detection to use the new operation hooks, this fixes
the bugs where operations like "updateOrCreate" did not update change
records.
The patch strongloop/loopback-datasource-juggler#436 changed the way
how `Model.extend` works, which broke one loopback test relying on the
old behaviour.
This commit fixes the failing test. The test is checking now that
the model base was not changed, instead of checking that the base
is undefined.
Enhance the error objects with a `code` property containing
a machine-readable string code describing the error, for example
INVALID_TOKEN or USER_NOT_FOUND.
Also improve 404 error messages to include the model name.
Allow convenient URLs for curl and browsers such as:
- http://some-long-token@localhost:3000/
- http://token:some-long-token@localhost:3000/
Basic Auth specifies a 'Basic' scheme for the Authorization header
similar to how OAuth specifies 'Bearer' as an auth scheme.
Following a similar convention, extract the access token from the
Authorization header when it specifies the 'Basic' scheme, assuming
it is the larger of the <user>:<pass> segments.
When executing a request using a pooled connection, connectors
like MongoDB and/or MySQL rebind callbacks to the domain which
issued the request, as opposed to the domain which opened the pooled
connection.
This commit fixes the context middleware to play nicely with that
mechanism and preserve domain rebinds.
Bugs fixed:
- express helpers like `req.get` are now available in middleware
handlers registered via `app.middleware`
- `req.url` does not include the mountpath prefix now, this is
consistent with the behaviour of `app.use`
The implementation of phased middleware was completely rewritten.
- We no longer use Phase and PhaseList objects from loopback-phase.
- Handler functions are registered via the `Layer` mechanism used by
express router.
- The app keeps the layers sorted according to phases.
Add a new argument to `app.middleware` allowing developers
to restrict the middleware to a list of paths or regular expresions.
Modify `app.middlewareFromConfig` to pass `config.paths` as the second
arg of `app.middleware`.
Examples:
// A string path (interpreted via path-to-regexp)
app.middleware('auth', '/admin', ldapAuth);
// A regular expression
app.middleware('initial', /^\/~(admin|root)/, rejectWith404);
// A list of scopes
app.middleware('routes', ['/api', /^\/assets/.*\.json$/], foo);
// From config
app.middlewareFromConfig(
handlerFactory,
{
phase: 'initial',
paths: ['/scope', /^\/(a|b)/]
});
Refactor the implementation to use the new method `phaseList.zipMerge`.
This is commit is changing the behaviour in the case when
the first new phase does not exist in the current list.
Before the change, all new phases were added just before the "routes"
phase.
After this change, new phases are added to the head of the list,
until an existing phase is encountered, at which point the regular
merge algorithm kicks in.
Example:
app.defineMiddlewarePhases(['first', 'routes', 'subapps']);
Before the change: code throws an error - 'routes' already exists.
After the change: phases are merged with the following result:
'first', 'initial', ..., 'routes', 'subapps', ...
Implement method for registering (new) middleware phases.
- If all names are new, then the phases are added just before
the "routes" phase.
- Otherwise the provided list of names is merged with the existing
phases in such way that the order of phases is preserved.
Example
// built-in phases:
// initial, session, auth, parse, routes, files, final
app.defineMiddlewarePhases('custom');
// new list of phases
// initial, session, auth, parse,
// custom,
// routes, files, final
app.defineMiddlewarePhases([
'initial', 'postinit', 'preauth', 'routes', 'subapps'
]);
// new list of phases
// initial,
// postinit, preauth,
// session, auth, parse, custom,
// routes,
// subapps,
// files, final
Implement a function registering a middleware using a factory function
and a JSON config.
Example:
app.middlewareFromConfig(compression, {
enabled: true,
phase: 'initial',
config: {
threshold: 128
}
});
Modify the app and router implementation, so that the middleware is
executed in order defined by phases.
Predefined phases:
'initial', 'session', 'auth', 'parse', 'routes', 'files', 'final'
Methods defined via `app.use`, `app.route` and friends are executed
as the first thing in 'routes' phase.
API usage:
app.middleware('initial', compression());
app.middleware('initial:before', serveFavicon());
app.middleware('files:after', loopback.urlNotFound());
app.middleware('final:after', errorHandler());
Middleware flavours:
// regular handler
function handler(req, res, next) {
// do stuff
next();
}
// error handler
function errorHandler(err, req, res, next) {
// handle error and/or call next
next(err);
}
Modify `loopback.rest()` to read the configuration for
`loopback.context` from `app.get('remoting')`, which is the approach
used for all other configuration options related to the REST transport.
- Implement the middleware `loopback.context`
- Inject context into juggler and strong-remoting
- Make http context optional and default to false
- Optionally mount context middleware from `loopback.rest`