Statement.Context can not be set

[neboduus]

Hi All! I don't know if this is an issue or just under engineering, but Statement.Context can not be set. If I look at xapistatement.js I can see just some context references, but any Context Object. Is this normal? How could I use Context on statements?

Thanks

[neboduus]

After reading all the xApiWrapper library code, me and my collegue found the solution.

The problem is that you can not set the CONTEXT property of a statement if you didn't set some context parameters during the configuration of ADL object.

So in order to set the context property of a statement you have to set at least one of grouping, registration or activity_platform during ADL configuration like so:

const configuration = {
      'endpoint' : LRS_ApiUrl,
      'auth' : 'Basic ' + btoa(LRS.key + ':' + LRS.secret),
      'registration': this.ADL.ruuid(),
      'activity_platform': `${this.organizationId}_organizationId`
    };
    this.ADL.XAPIWrapper.changeConfig(configuration);

As you can see I set only registration and activity_platform.

This is because of this lines of code in xapiwrapper.js file:

XAPIWrapper.prototype.prepareStatement = function(stmt)
    {
        ...........
        if (this.lrs.grouping ||
            this.lrs.registration ||
            this.lrs.activity_platform) {
            if (!stmt.context) {
                stmt.context = {};
            }
        }

        if (this.lrs.grouping) {
            if (!stmt.context.contextActivities) {
                stmt.context.contextActivities = {};
            }
            stmt.context.contextActivities.grouping = [{ id : this.lrs.grouping }];
        }
       ...........
    }

Here you can note that in order to set statement.context.contextActivities you must set grouping.

Hope this could help someone else!

When I will have some time I will update the documentation and make a pull request.

Bye!