@sealsystems/assert-mongo-error

Test for a servere mongodb error and handle it by exiting the process, throwing a new generated @sealsystems/error error object or just ignore the error.

Default list of severe mongodb error codes to exit:

| Name | Code | |---|---| | InternalError |1| | HostUnreachable |6| | HostNotFound |7| | NetworkTimeout | 89 | | SocketException | 9001 | | UnknownError |8| | ProtocolError | 17 | | IllegalOpMsgFlag | 223 | | UserNotFound |11| | Unauthorized |13| | AuthenticationFailed | 18 | | InvalidSSLConfiguration | 140 | | SSLHandshakeFailed | 141 | | OutOfDiskSpace | 14031 |

Installation

$ npm install @sealsystems/assert-mongo-error

Quick start

First you need to add a reference to @sealsystems/assert-mongo-error within your application, then call the assert function in the callback of every mongodb call.

const assertMongoError = require('@sealsystems/assert-mongo-error');

yourCollection.find({}, (findError, cursor) => {
  assertMongoError.assert(findError);
  ...
});

Assert Error

Test for a servere mongodb error. The function has three outcomes:

• In case of a severe mongodb error exit the process
• Without any of the optional parameters the mongodb error is ignored and the function returns.
• If at least an error message is given as second parameter it throws a new created error of type @sealsystems/error. The original mongodb error is chained to the new error.

assertMongoError.assert(error, message, code, metadata);

Parameters:

error      object  mandatory  The error object to test
message    string  optional   Message used for creating a new error object
code       number  optional   Code used for creating a new error object
metadata   object  optional   Metadata used for creating a new error object

Set list of error codes

Use the setCodes function to set a new list of error codes. This needs to be done only once, e.g. at startup. The new list is available instantly throughout the whole node process.

const assertMongoError = require('@sealsystems/assert-mongo-error');

assertMongoError.setCodes([1,2,3]);
...
assertMongoError.assert(mongoErrorObject);

Running the build

To build this module use roboter.

$ bot