Post position data and get proceced info

[Erwan_Thomas]

Hello,

I would like to send the phone position to a web server that could process this info and return the proceced info to the phone by the app.
Could you please give me some tips or examples that I could use to understand how to make this please ?

Thank you

[TIMAI2]

@Erwan_Thomas

web server that could process this info

What is it going to do with the location data you send ? Is that the part you need help with or the uploading and downloading of data?

In general you would use the web component and a GET or POST request.

[Erwan_Thomas]

Hi,

I need help with the get post method, and what kind of server I need to implement (it would be on a raspberry pi) with some tutorials as example.
Maybe I should begin with sending a position to the server and get a "received et xx:xx" from the server.

Thank you

[TIMAI2]

@Erwan_Thomas

Maybe I should begin with sending a position to the server and get a "received et xx:xx" from the server

It would be more helpful to know what it is you want to eventually achieve, then we can work up the correct framework at the app and the server end. Your raspberry can run all sorts of servers, but I am guessing you will probably use php....

I suggest you POST:
Device / User name / ID | Lat | Lon as a minimum.

Then what do you want to do with this information at the server before you return data?

[Erwan_Thomas]

Thank you

After with the position info, I would like to get the nearest tourism sites that are included in a database accesible with graphgl requests, use Google distance Matrix api to evaluate distance and propose back to the user a navigation route.

[TIMAI2]

You should be able to do most, if not all, of this using the AI2 Maps and Navigate components, and by creating a feature collection of the tourism sites from your database (where/what is this?). Maps can provide an "as the crow files" distance between two points, Navigate can compute the route between two points, and display this on a map and as a list.

[Erwan_Thomas]

Thank you.

Do you have examples to follow for all these steps please ?

[Erwan_Thomas]

For the tourism darabase it is a rbf file that i download from a website ans that IS often updated

[TIMAI2]

@Erwan_Thomas

Do you have examples to follow for all these steps please

You can search the community for "navigate" and /or "feature collection" to get a broad response.

Here a few guides:

HOW TO: Use the Navigate control

Simple Navigate by SteveJG [NavigateRose2] This tutorial is an example of one way to use the Navigate tool to build a Simple Navigate app. The instructions are intended for intermediate or advanced users of App Inventor 2. There are no detailed instructions. Provide similar code in your app. The Blocks are the documentation. Navigate Control The Navigate control provides ‘turn by turn’ directions used to get between two locations. The routing output is similar to directions provided by the G…

How to broadcast a GPS location and share the information on a map with others in real time..CloudDB

[bus2] How to broadcast a GPS location and share the information on a map in real time. Two similar apps explore the basics of how to share a location using a single screen and a real time database. One app user beacons, the others monitor (view his/her) location map using the same app. Share Your Location is a basic app to share a map of your location with others who have installed your app. The example tracks a single user who beacons his/her location. Provide separate Tags for other u…

HOW TO: Parse a LocationSensor's Current Address by SteveJG

HOW TO: Parse a LocationSensor’s Current Address by SteveJG [CurrentAddress] When an app asks the LocationSensor for the CurrentAddress, the LocationSensor retrieves the information Google provides from its database for a location in a csv format if there is any information in its database for the device’s current perceived location. In the USA, the information provided is typically four (or possibly more) comma separated values. For example in the USA: Street Address,City,State plus zip …

How to text your Location to a Phone and Display the Location on a Google Map

Use the Texting and LocationSensor components to send your location to a phone by sms. [TextingScreen] The code shown below in the send Location Procedure prevents the message from transmitting until after your GPS receives a satellite fix. The Android must first decide where it is located prior to sending its location. The satellite fix must be obtained so the GPS knows where it is. The satellite fix normally occurs from 30 to 60 seconds after loading the app. Press the send Button and w…

[Erwan_Thomas]

How could I get
Device / User name / ID values with app inventor

Thank you

[Patryk_F]

If you are using GraphQl you may want to look at a special version of Ai2 which has components for GraphQl.

http://punya.appinventor.mit.edu/#5753795321528320

http://punya.appinventor.mit.edu/reference/components/experimental.html#GraphQL