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Hello Canvas Developers, I'm attempting to delete a file in a course via the API. My request currently looks like this: https://canvas_url/api/v1/courses/course_id/files/file_id?access_token=myaccesstoken I sent this via a DELETE command and got back a 422 error which according to google means "The server understands the request that I am making, the syntax is correct, but the server is unable to process the request". -Christopher Poole ... View more

Hello Canvas Developers, We're trying to see the contents of a text file within a course's file structure. We're doing this by first finding the file's JSON object using GET /api/v1/courses/course_id/files?search_term=filename.txt and then take the URL parameter from that JSON object and sending a GET request to it. This only returns the message "Cannot connect to destination host". We've printed the URL to output as well and tried to access it through our browsers and in doing so found two problems: 1. We've set up our Canvas instance on a virtual machine which is using IPv6. The URL it gives us doesn't like that at all and gives us [FE80:0000:0000:0000:0A00:27FF:FEFE:70C5] instead of just [fe80:a00:27ff:fefe:70c5]. This isn't too bad of a problem considering we will have a way to change our IP soon and obviously no real Canvas instances are going to be set up with purely IPv6 addresses. 2. We receive "\u0026" instead of "&" right before the verifier code, much like what's happening to DJ Rao in his question https://community.canvaslms.com/thread/3581   Whenever we manually try to fix both of these problems in the browser, it automatically changes the IP to my local IPv4 address and spits out a familiar message about it not being able to connect. In a few days we'll be able to try using an IPv4 address but right now I'm wondering if there is anything inherently wrong with the way we're approaching this. Is this the optimal way to look at the contents of a file? ... View more

Hello Canvas Developers, I know its possible to upload a file to Canvas using the API, but is there an API call to create a simple text file directly in the Canvas folder system without having to go through the process of creating it on my end?  Thanks for the help, -Christopher Poole ... View more

As part of a Gamification initiative, my team and I are working to create an stand-alone game which uses the Canvas API's GET requests to retrieve information on the student player and their courses. We're currently using manually created access tokens for testing but plan to learn OAuth later. Ideally, this game would work with any school's instance of Canvas (we plan on having a text field where you can type the base URL of your school's Canvas instance which is then used elsewhere for the GET calls). This means we wouldn't want to go through each individual school our players use and ask each one for permissions and instead just have a general solution that would allow the player to login and have it work with any instance of Canvas. Is this possible? We've already used our stand-alone program to gain information on our school's instance using my own access token, but is this a feature that some school's disable for security risks? Also when we move on to using OAuth will we still be able to generate a token for any school using only the URL of that school's instance and the login of a student from that school? Thanks for the help! ... View more