Unknown type "Blob"

[orlowdev]

Hi guys. I got a problem with extracting readme from my repos. I tried the following query:

query {
user(login: "priestine") {
      repositories(
        isFork: false
        first: 25
        isLocked: false
        orderBy: { field: UPDATED_AT, direction: DESC }
      ) {
        nodes {
          name
          url
          forkCount
          openGraphImageUrl
          stargazers {
            totalCount
          }
          fundingLinks {
            url
          }
          object(expression: "master:README.md") {
            ... on Blob {
              text
            }
          }
        }
      }
    }
}

It doesn't start and throws the message:

Unknown type "Blob".

GraphQL request:32:20
31 |           object(expression: "master:README.md") {
32 |             ... on Blob {
   |                    ^
33 |               text

I've tested the query in GitHub GraphQL API Explorer and the query itself is valid and it works. Is it me doing something wrong? Any help would be greatly appreciated. Thanks!

[orlowdev]

My apologies, everything works great! Ignore me 😂

[ldd]

was it perhaps

              edges {
                node {
                 [stuff goes here]
                  }
                }

instead of

             nodes {
                 [stuff goes here]
                }

?

[orlowdev]

No, not really. It was just me having a token that cannot access things I tried to get via GraphQL. This caused the query to get nothing from GitHub, which, in turn, made githubData to have no data property. Without it in place, the whole query failed. As it had the type it couldn't understand (Blob), it failed to even start the dev server. That's all, folks 😆

[GarciaPL]

@priestine So I assume that not enough privileges was set for token ? I am asking as I am having the same issue with unrecognized type Blob on my side

[orlowdev]

@GarciaPL, for me a new token fixed the problem. I managed to debug the token issue by removing all the keys in the query related to packages and it worked for me. If you still have issues, read the description of the package carefully, for me it worked.

Things to be attentive to:

• in gatsby-config.js you put the query that fetches all the data from GitHub at once on gatsby develop
• in your code you write queries without parameters you use in the GitHub query, e.g. repositories(isFork: false) {... in gatsby-config.js should be then used in the code as repositories {...
• avoid types like Blob in the actual code as you already have all the stuff needed
• check GraphQL Playground (/___grapql on your host), especially the githubData. If there's no data inside, it means that your GitHub query in gatsby-config.js failed for some reason

You can also take a look at the orlove.dev repo in my profile, in gatsby-config.js and src/pages/index.tsx.

I hope these tips will help. Cheers!

[GarciaPL]

@priestine thank you for your help! Now everything works as expected, much appreciated! :100:

[orlowdev]

Glad I could help. 👍

[GarciaPL]

@priestine Apologize, but I was wrong that it works. It does for sure for the simple case of graphql without spreading used on types like getting info about user etc. When I have below graphql query defined in gatsby-config.js which just returns blob of the files defined in the given repository. This query works in GitHub GraphQL API

        graphQLQuery: `
          query {
            repository(owner: "CodingVoodoo", name: "template") {
              object(expression: "master:") {
                ... on Tree {
                  entries {
                    name
                    type
                    object {
                      ... on Blob {
                        text
                      }
                    }
                  }
                }
              }
            }
          }
        `

it gives me two errors

Unknown type "Tree".

GraphQL request:7:20
6 |           object {
7 |             ... on Tree {
  |                    ^
8 |               entries {

and

Unknown type "Blob".

GraphQL request:12:26
11 |                 object {
12 |                   ... on Blob {
   |                          ^
13 |                     text

Of course I am using query without parameters like

export const query = graphql`
  query {
    githubData {
      data {
        repository {
          object {
            ... on Tree {
              entries {
                name
                type
                object {
                  ... on Blob {
                    text
                  }
                }
              }
            }
          }
        }
      }
    }
  }
`

Would you be so kind and highlight where the problem is ? Only what I have found is that perhaps I need to create type definition as here specified Gatsby Creating type definitions

[orlowdev]

Try this query in the code:

query {
    githubData {
      data {
        repository {
          object {
              entries {
                name
                type
                object {
                    text
                  }
                }
            }
          }
        }
    }
  }

It should work.

[GarciaPL]

Thank you! I would never find out that it should look like that. It works now! Thank you once again!

[orlowdev]

Sure, np. I’m not an expert in the topic but the to me underlying idea here is that at your app launch the GitHub query is executed, producing a new GraphQL schema where the data already has the shape that was returned from github. Thus you no longer have the blob and other stuff. Maybe I’m wrong. 😁

[ldd]

Hey! I really liked this little conversation.

I'll try adding a small FAQ in the readme with the things you discovered to make it easier for other devs using this package.

Otherwise, consider this issue closed (but feel free to add more comments if you want)