Add unreliable field for demoing errors

apollographql-education · Oct 7, 2024 · 42dee0e · 42dee0e
1 parent da1ca94
commit 42dee0e
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diff --git a/subgraphs/experiences/schema.graphql b/subgraphs/experiences/schema.graphql
@@ -21,6 +21,8 @@ type InterstellarExperience @key(fields: "name") {
   destinationId: ID!
   "A link to NASA for more information on this experience."
   nasaPosterUrl: String!
+  "For demo purposes, triggers an error in the subgraph"
+  unreliableDescription: String
 }
 
 """

diff --git a/subgraphs/experiences/src/index.ts b/subgraphs/experiences/src/index.ts
@@ -26,6 +26,14 @@ const server = new ApolloServer({
       Query: {
         experiences: () => experiences,
       },
+      InterstellarExperience: {
+        unreliableDescription: (parent: any) => {
+          if (Math.random() < 0.9) {
+            throw new Error("Something went wrong.");
+          }
+          return parent.description;
+        },
+      },
       Mutation: {
         submitInsightsExperienceLevel() {
           return true;