httpGet to smart app from hub fails while I can access the URL manually

🚧 Developers Coding Questions
1

I have created a smart app with http access. I can call 'GET' on it via command line on my computer, but httpGet from hub itself (one app does http call to another app on same hub) fails.

Here's http app (oauth enabled, but I'm not sure it's needed?):

definition(
        name: "Helper app state",
        namespace: "me.biocomp",
        author: "biocomp",
        description: "Testing",
        iconUrl: "https://s3.amazonaws.com/smartapp-icons/Convenience/Cat-Convenience.png",
        iconX2Url: "https://s3.amazonaws.com/smartapp-icons/Convenience/Cat-Convenience@2x.png",
        iconX3Url: "https://s3.amazonaws.com/smartapp-icons/Convenience/Cat-Convenience@2x.png",
        parent: "me.biocomp:Helper app",
        oauth: true
)
mappings {
    path("/") { action: [ GET: "readData" ] }
}

void resetData() {
    atomicState.queuedData = "Some data"
}

def readData() {
    return [data: atomicState.queuedData]
}

def getUri() {
    log.info("getUri called")
    return atomicState.uri
}

def installed() {
    if(!state.accessToken){	
        //enable OAuth in the app settings or this call will fail
        createAccessToken()	
    }
    
    log.info "My getApiServerUrl() = ${getApiServerUrl}"
    atomicState.uri = getFullLocalApiServerUrl() + "/?access_token=${state.accessToken}"

    resetData()
}

def updated()
{
    resetData()
}

Here's calling app:

definition(
        name: "Helper app",
        namespace: "me.biocomp",
        author: "biocomp",
        description: "Testing",
        iconUrl: "https://s3.amazonaws.com/smartapp-icons/Convenience/Cat-Convenience.png",
        iconX2Url: "https://s3.amazonaws.com/smartapp-icons/Convenience/Cat-Convenience@2x.png",
        iconX3Url: "https://s3.amazonaws.com/smartapp-icons/Convenience/Cat-Convenience@2x.png"
)
preferences() {
    section("S"){
        app name: "childApps", appName: "Helper app state", namespace: "me.biocomp", title: "New Child App", multiple: false  
    }
}

void checkData()
{
    def uri = getChildApps()[0].getUri();
    log.info("Checking data via '${uri}'...") 

    def data = null
    httpGet(uri, { response -> 
        log.info("Got http response: ${response}")
        data = response.data 
    })

    log.info("data = ${data}")
    log.info("Done checking readData()...")
}

def installed()
{}

def uninstalled() {}

def updated() {
    checkData()
}

This works on my laptop:
wget http://192.168.1.2/apps/api/622/?access_token=11111111-2222-3333-4444-555555555555

But this fails when I update the calling app:

app:4192020-05-29 16:59:53.781 errororg.apache.http.conn.HttpHostConnectException: Connect to 192.168.1.2:80 [/192.168.2.15] failed: Connection refused (Connection refused) on line 25 (updated)
app:4192020-05-29 16:59:53.747 infoChecking data via 'http://192.168.1.2/apps/api/622/?access_token=11111111-2222-3333-4444-555555555555'...

I tried searching around, but haven't found helpful answers.
What am I doing wrong? Thanks!

2

I've never had the URI as a single host and path with parameters. I typically break it out in a map as documented here. It's possible the URI cannot contain both path and parameters for some reason. Try breaking the parts into a map and passing that just to see if it works.

https://docs.hubitat.com/index.php?title=Common_Methods_Object#httpGet

3

Access the local hub endpoints from the hub you do over port 8080 I believe. From outside of the hub the standard port 80 is fine.

3 Likes
4

Yup, you're right, port 8080 worked. Thanks!