protocol version >1.21: refreshJourneys/Reconstruction fails

[derhuerst]

I'm trying to send a Reconstruction request with recent HAFAS protocol version, but it fails.

In the following example, I set the value of ctxRecon to an invalid value ("foo") to demonstrate the difference between the versions.

With 1.21, as expected it complains about the value of ctxRecon being invalid:

Error: HCI Service: context invalid
		at Object.request (/Users/j/web/hafas-client/lib/request.js:81:14)
		at Object.refreshJourney (/Users/j/web/hafas-client/index.js:254:18)
		at Object.<anonymous> (/Users/j/web/hafas-client/p/db/example.js:11:8)
		at Module._compile (internal/modules/cjs/loader.js:1158:30)
		at Object.Module._extensions..js (internal/modules/cjs/loader.js:1178:10)
		at Module.load (internal/modules/cjs/loader.js:1002:32)
		at Function.Module._load (internal/modules/cjs/loader.js:901:14)
		at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:74:12)
		at internal/main/run_main_module.js:18:47 {
	isHafasError: true,
	request: '{"lang":"en","svcReqL":[{"meth":"Reconstruction","req":{"ctxRecon":"foo","getIST":true,"getPasslist":false,"getPolyline":false},"cfg":{"rtMode":"HYBRID"}}],"client":{"id":"DB","v":"16040000","type":"IPH","name":"DB Navigator"},"ext":"DB.R19.04.a","ver":"1.21","auth":{"type":"AID","aid":"n91dB8Z77MLdoR0K"}}',
	url: 'https://reiseauskunft.bahn.de/bin/mgate.exe?checksum=3077106a925e707354fd724e24af5c07',
	statusCode: 200,
	code: 'CONTEXT',
	message: 'HCI Service: context invalid',
	responseId: 'wi24brt8gascxkw8'
}

With 1.22, I think it says ctxRecon is syntactically not expected here:

Error: Parser error: root.svcReqL.svcReqL.req(ctxRecon)
		at Object.request (/Users/j/web/hafas-client/lib/request.js:81:14)
		at Object.refreshJourney (/Users/j/web/hafas-client/index.js:254:18)
		at Object.<anonymous> (/Users/j/web/hafas-client/p/db/example.js:11:8)
		at Module._compile (internal/modules/cjs/loader.js:1158:30)
		at Object.Module._extensions..js (internal/modules/cjs/loader.js:1178:10)
		at Module.load (internal/modules/cjs/loader.js:1002:32)
		at Function.Module._load (internal/modules/cjs/loader.js:901:14)
		at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:74:12)
		at internal/main/run_main_module.js:18:47 {
	isHafasError: true,
	request: '{"lang":"en","svcReqL":[{"meth":"Reconstruction","req":{"ctxRecon":"foo","getIST":true,"getPasslist":false,"getPolyline":false},"cfg":{"rtMode":"HYBRID"}}],"client":{"id":"DB","v":"16040000","type":"IPH","name":"DB Navigator"},"ext":"DB.R19.04.a","ver":"1.22","auth":{"type":"AID","aid":"n91dB8Z77MLdoR0K"}}',
	url: 'https://reiseauskunft.bahn.de/bin/mgate.exe?checksum=57e6c9e0cfddf91c72e6968e0633de18',
	statusCode: 200,
	code: 'PARSE',
	message: 'Parser error: root.svcReqL.svcReqL.req(ctxRecon)',
	responseId: null
}

[derhuerst]

@alexander-albers @schildbach @marudor Do you know how to change the request structure to make it work with >1.21?

[schildbach]

I'm afraid not. For such reasons, I limited API version to the version used on the respective official web page/app.

[derhuerst]

Yeah I can see why. But other endpoints & apps already use versions >=1.21, and it enables new features, e.g. output of sub-stations.

[marudor]

So far 1.20 is the max I've used. Currently mainly using 1.18.

[derhuerst]

Some endpoints use ctxRecon: '…', some use outReconL: [{ctx: '…'}]. d017e62 introduced a profile flag for switching between them.